diff --git a/Demo/Cortex_STM32L152_IAR/FreeRTOSConfig.h b/Demo/Cortex_STM32L152_IAR/FreeRTOSConfig.h index c0f3f3f61..ab9283838 100644 --- a/Demo/Cortex_STM32L152_IAR/FreeRTOSConfig.h +++ b/Demo/Cortex_STM32L152_IAR/FreeRTOSConfig.h @@ -72,7 +72,7 @@ #define configCPU_CLOCK_HZ ( 32000000UL ) #define configTICK_RATE_HZ ( ( portTickType ) 1000 ) #define configMAX_PRIORITIES ( ( unsigned portBASE_TYPE ) 5 ) -#define configMINIMAL_STACK_SIZE ( ( unsigned short ) 128 ) +#define configMINIMAL_STACK_SIZE ( ( unsigned short ) 70 ) #define configTOTAL_HEAP_SIZE ( ( size_t ) ( 10 * 1024 ) ) #define configMAX_TASK_NAME_LEN ( 16 ) #define configUSE_TRACE_FACILITY 0 @@ -80,6 +80,7 @@ #define configIDLE_SHOULD_YIELD 1 #define configQUEUE_REGISTRY_SIZE 1 #define configGENERATE_RUN_TIME_STATS 1 +#define configCHECK_FOR_STACK_OVERFLOW 2 /* Co-routine definitions. */ #define configUSE_CO_ROUTINES 0 @@ -100,25 +101,34 @@ to exclude the API function. */ #ifdef __NVIC_PRIO_BITS #define configPRIO_BITS __NVIC_PRIO_BITS #else - #define configPRIO_BITS 4 /* 32 priority levels */ + #define configPRIO_BITS 4 /* 15 priority levels */ #endif +#define configLIBRARY_LOWEST_INTERRUPT_PRIORITY 15 +//#define configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY 5 +#define configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY 15 + /* The lowest priority. */ -#define configKERNEL_INTERRUPT_PRIORITY ( 15 << (8 - configPRIO_BITS) ) +//#define configKERNEL_INTERRUPT_PRIORITY ( configLIBRARY_LOWEST_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) ) /* Priority 5, or 160 as only the top three bits are implemented. */ -#define configMAX_SYSCALL_INTERRUPT_PRIORITY ( 5 << (8 - configPRIO_BITS) ) +//#define configMAX_SYSCALL_INTERRUPT_PRIORITY ( configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) ) + +/* The lowest priority. */ +#define configKERNEL_INTERRUPT_PRIORITY 255 +/* Priority 5, or 160 as only the top three bits are implemented. */ +#define configMAX_SYSCALL_INTERRUPT_PRIORITY 255 + /* Prevent the following definitions being included when FreeRTOSConfig.h is included from an asm file. */ #ifdef __ICCARM__ #include "stm32l1xx_tim.h" extern void vConfigureTimerForRunTimeStats( void ); - unsigned long ulGetRunTimeStatsCounterValue( void ); extern unsigned long ulTIM6_OverflowCount; #endif /* __ICCARM__ */ #define portCONFIGURE_TIMER_FOR_RUN_TIME_STATS() vConfigureTimerForRunTimeStats() -#define portGET_RUN_TIME_COUNTER_VALUE() ulGetRunTimeStatsCounterValue() +#define portGET_RUN_TIME_COUNTER_VALUE() ( ( ulTIM6_OverflowCount << 16UL ) | ( unsigned long ) TIM6->CNT ) #endif /* FREERTOS_CONFIG_H */ diff --git a/Demo/Cortex_STM32L152_IAR/RTOSDemo.ewp b/Demo/Cortex_STM32L152_IAR/RTOSDemo.ewp index 3f63437a1..5696d39a4 100644 --- a/Demo/Cortex_STM32L152_IAR/RTOSDemo.ewp +++ b/Demo/Cortex_STM32L152_IAR/RTOSDemo.ewp @@ -1753,6 +1753,9 @@ Standard_Demo_Code + + $PROJ_DIR$\..\Common\Minimal\comtest.c + $PROJ_DIR$\..\Common\Minimal\dynamic.c @@ -1791,6 +1794,9 @@ $PROJ_DIR$\system_and_ST_code\STM32L1xx_StdPeriph_Driver\src\stm32l1xx_tim.c + + $PROJ_DIR$\system_and_ST_code\STM32L1xx_StdPeriph_Driver\src\stm32l1xx_usart.c + $PROJ_DIR$\system_and_ST_code\startup_stm32l1xx_md.s @@ -1808,6 +1814,9 @@ $PROJ_DIR$\ParTest.c + + $PROJ_DIR$\serial.c + diff --git a/Demo/Cortex_STM32L152_IAR/main.c b/Demo/Cortex_STM32L152_IAR/main.c index f00bc03e3..ed78d1979 100644 --- a/Demo/Cortex_STM32L152_IAR/main.c +++ b/Demo/Cortex_STM32L152_IAR/main.c @@ -63,6 +63,7 @@ #include "partest.h" #include "flash.h" #include "dynamic.h" +#include "comtest2.h" /* ST driver includes. */ #include "stm32l1xx_usart.h" @@ -73,6 +74,7 @@ #define mainFLASH_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 ) #define mainLCD_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 ) +#define mainCOM_TEST_PRIORITY ( tskIDLE_PRIORITY + 2 ) #define mainLCD_TASK_STACK_SIZE ( configMINIMAL_STACK_SIZE * 2 ) @@ -85,6 +87,14 @@ #define mainMESSAGE_BUTTON_SEL ( 5 ) #define mainMESSAGE_STATUS ( 6 ) +/* Baud rate used by the comtest tasks. */ +#define mainCOM_TEST_BAUD_RATE ( 9600 ) + +/* The LED used by the comtest tasks. See the comtest.c file for more +information. */ +#define mainCOM_TEST_LED ( 3 ) + + /* * System configuration is performed prior to main() being called, this function * configures the peripherals used by the demo application. @@ -118,6 +128,7 @@ void main( void ) xTaskCreate( vTempTask, ( signed char * ) "Temp", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY, NULL ); vStartDynamicPriorityTasks(); vStartLEDFlashTasks( mainFLASH_TASK_PRIORITY ); + vAltStartComTestTasks( mainCOM_TEST_PRIORITY, mainCOM_TEST_BAUD_RATE, mainCOM_TEST_LED ); vTaskStartScheduler(); } @@ -125,7 +136,7 @@ void main( void ) for( ;; ); } /*-----------------------------------------------------------*/ -unsigned long ulTempArray[ 10 ], ulx = 0; + static void prvLCDTask( void *pvParameters ) { xQueueMessage xReceivedMessage; @@ -133,6 +144,12 @@ long lLine = Line1; const long lFontHeight = (((sFONT *)LCD_GetFont())->Height); static char cBuffer[ 256 ]; + /* This function is the only function that uses printf(). If printf() is + used from any other function then some sort of mutual exclusion on stdout + will be necessary. */ + + printf( "%d bytes of heap space remain unallocated\n", xPortGetFreeHeapSize() ); + for( ;; ) { xQueueReceive( xLCDQueue, &xReceivedMessage, portMAX_DELAY ); @@ -153,7 +170,7 @@ static char cBuffer[ 256 ]; break; case mainMESSAGE_BUTTON_RIGHT : sprintf( cBuffer, "Button right = %d", xReceivedMessage.lMessageValue ); break; - case mainMESSAGE_BUTTON_SEL : printf( "\nTask\t Abs Time\t %%Time\n*****************************************\n" ); + case mainMESSAGE_BUTTON_SEL : printf( "\nTask\t Abs Time\t %%Time\n*****************************************" ); vTaskGetRunTimeStats( ( signed char * ) cBuffer ); printf( cBuffer ); @@ -199,6 +216,11 @@ long lHigherPriorityTaskWoken = pdFALSE; /* Not used in this case as this is the xStatusMessage.lMessageValue = pdFAIL; } + if( xAreComTestTasksStillRunning() != pdPASS ) + { + xStatusMessage.lMessageValue = pdFAIL; + } + xQueueSendFromISR( xLCDQueue, &xStatusMessage, &lHigherPriorityTaskWoken ); ulCounter = 0; } @@ -228,6 +250,8 @@ xQueueMessage xMessage; static void prvSetupHardware( void ) { + NVIC_PriorityGroupConfig( NVIC_PriorityGroup_4 ); + /* Initialise the LEDs. */ vParTestInitialise(); @@ -245,19 +269,6 @@ static void prvSetupHardware( void ) configMAX_SYSCALL_INTERRUPT_PRIORITY() value set in FreeRTOSConfig.h. */ STM_EVAL_PBInit( BUTTON_SEL, BUTTON_MODE_EXTI ); -#if 0 -USART_InitTypeDef USART_InitStructure; - - USART_InitStructure.USART_BaudRate = 115200; - USART_InitStructure.USART_WordLength = USART_WordLength_8b; - USART_InitStructure.USART_StopBits = USART_StopBits_1; - USART_InitStructure.USART_Parity = USART_Parity_No; - USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; - USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; - - STM_EVAL_COMInit( COM1, &USART_InitStructure ); -#endif - /* Initialize the LCD */ STM32L152_LCD_Init(); @@ -287,14 +298,13 @@ NVIC_InitTypeDef NVIC_InitStructure; /* Only interrupt on overflow events. */ TIM6->CR1 |= TIM_CR1_URS; - //TIM6->CR1 &= (uint16_t)~((uint16_t)TIM_CR1_URS); TIM_ITConfig( TIM6, TIM_IT_Update, ENABLE ); /* Enable the TIM6 gloabal Interrupt */ NVIC_InitStructure.NVIC_IRQChannel = TIM6_IRQn; - NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0f; - NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0f; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = configLIBRARY_LOWEST_INTERRUPT_PRIORITY; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x00; /* Not used as 4 bits are used for the pre-emption priority. */ NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; TIM_ClearITPendingBit( TIM6, TIM_IT_Update ); @@ -303,18 +313,6 @@ NVIC_InitTypeDef NVIC_InitStructure; } /*-----------------------------------------------------------*/ -unsigned long ulGetRunTimeStatsCounterValue( void ) -{ -unsigned long ulReturn; - - TIM6->CR1 &= (uint16_t)(~((uint16_t)TIM_CR1_CEN)); - ulReturn = ( ( ulTIM6_OverflowCount << 16UL ) | ( unsigned long ) TIM6->CNT ); - TIM6->CR1 |= TIM_CR1_CEN; - - return ulReturn; -} -/*-----------------------------------------------------------*/ - void TIM6_IRQHandler( void ) { if( TIM_GetITStatus( TIM6, TIM_IT_Update) != RESET) @@ -323,5 +321,15 @@ void TIM6_IRQHandler( void ) TIM_ClearITPendingBit( TIM6, TIM_IT_Update ); } } +/*-----------------------------------------------------------*/ + +void vApplicationStackOverflowHook( xTaskHandle *pxTask, signed char *pcTaskName ) +{ + ( void ) pcTaskName; + ( void ) pxTask; + + for( ;; ); +} + diff --git a/Demo/Cortex_STM32L152_IAR/serial.c b/Demo/Cortex_STM32L152_IAR/serial.c new file mode 100644 index 000000000..fd3a15094 --- /dev/null +++ b/Demo/Cortex_STM32L152_IAR/serial.c @@ -0,0 +1,230 @@ +/* + FreeRTOS V6.1.0 - Copyright (C) 2010 Real Time Engineers Ltd. + + *************************************************************************** + * * + * If you are: * + * * + * + New to FreeRTOS, * + * + Wanting to learn FreeRTOS or multitasking in general quickly * + * + Looking for basic training, * + * + Wanting to improve your FreeRTOS skills and productivity * + * * + * then take a look at the FreeRTOS books - available as PDF or paperback * + * * + * "Using the FreeRTOS Real Time Kernel - a Practical Guide" * + * http://www.FreeRTOS.org/Documentation * + * * + * A pdf reference manual is also available. Both are usually delivered * + * to your inbox within 20 minutes to two hours when purchased between 8am * + * and 8pm GMT (although please allow up to 24 hours in case of * + * exceptional circumstances). Thank you for your support! * + * * + *************************************************************************** + + This file is part of the FreeRTOS distribution. + + FreeRTOS is free software; you can redistribute it and/or modify it under + the terms of the GNU General Public License (version 2) as published by the + Free Software Foundation AND MODIFIED BY the FreeRTOS exception. + ***NOTE*** The exception to the GPL is included to allow you to distribute + a combined work that includes FreeRTOS without being obliged to provide the + source code for proprietary components outside of the FreeRTOS kernel. + FreeRTOS is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. You should have received a copy of the GNU General Public + License and the FreeRTOS license exception along with FreeRTOS; if not it + can be viewed here: http://www.freertos.org/a00114.html and also obtained + by writing to Richard Barry, contact details for whom are available on the + FreeRTOS WEB site. + + 1 tab == 4 spaces! + + http://www.FreeRTOS.org - Documentation, latest information, license and + contact details. + + http://www.SafeRTOS.com - A version that is certified for use in safety + critical systems. + + http://www.OpenRTOS.com - Commercial support, development, porting, + licensing and training services. +*/ + +/* + BASIC INTERRUPT DRIVEN SERIAL PORT DRIVER FOR UART0. +*/ + +/* Scheduler includes. */ +#include "FreeRTOS.h" +#include "queue.h" +#include "semphr.h" +#include "comtest2.h" + +/* Library includes. */ +#include "stm32l152_eval.h" + +/* Demo application includes. */ +#include "serial.h" +/*-----------------------------------------------------------*/ + +/* Misc defines. */ +#define serINVALID_QUEUE ( ( xQueueHandle ) 0 ) +#define serNO_BLOCK ( ( portTickType ) 0 ) +#define serTX_BLOCK_TIME ( 40 / portTICK_RATE_MS ) + +/*-----------------------------------------------------------*/ + +/* The queue used to hold received characters. */ +static xQueueHandle xRxedChars; +static xQueueHandle xCharsForTx; + +/*-----------------------------------------------------------*/ + +/* + * See the serial2.h header file. + */ +xComPortHandle xSerialPortInitMinimal( unsigned portLONG ulWantedBaud, unsigned portBASE_TYPE uxQueueLength ) +{ +USART_InitTypeDef USART_InitStructure; +xComPortHandle xReturn; +NVIC_InitTypeDef NVIC_InitStructure; + + /* Create the queues used to hold Rx/Tx characters. */ + xRxedChars = xQueueCreate( uxQueueLength, ( unsigned portBASE_TYPE ) sizeof( signed portCHAR ) ); + xCharsForTx = xQueueCreate( uxQueueLength + 1, ( unsigned portBASE_TYPE ) sizeof( signed portCHAR ) ); + + /* If the queue/semaphore was created correctly then setup the serial port + hardware. */ + if( ( xRxedChars != serINVALID_QUEUE ) && ( xCharsForTx != serINVALID_QUEUE ) ) + { + USART_InitStructure.USART_BaudRate = ulWantedBaud; + USART_InitStructure.USART_WordLength = USART_WordLength_8b; + USART_InitStructure.USART_StopBits = USART_StopBits_1; + USART_InitStructure.USART_Parity = USART_Parity_No; + USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; + USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; + + /* The Eval board COM2 is being used, which in reality is the STM32 + USART3. */ + STM_EVAL_COMInit( COM2, &USART_InitStructure ); + + NVIC_InitStructure.NVIC_IRQChannel = USART3_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; /* Not used as 4 bits are used for the pre-emption priority. */; + NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; + NVIC_Init( &NVIC_InitStructure ); + USART_ITConfig( USART3, USART_IT_RXNE, ENABLE ); + } + else + { + xReturn = ( xComPortHandle ) 0; + } + + /* This demo file only supports a single port but we have to return + something to comply with the standard demo header file. */ + return xReturn; +} +/*-----------------------------------------------------------*/ + +signed portBASE_TYPE xSerialGetChar( xComPortHandle pxPort, signed portCHAR *pcRxedChar, portTickType xBlockTime ) +{ + /* The port handle is not required as this driver only supports one port. */ + ( void ) pxPort; + + /* Get the next character from the buffer. Return false if no characters + are available, or arrive before xBlockTime expires. */ + if( xQueueReceive( xRxedChars, pcRxedChar, xBlockTime ) ) + { + return pdTRUE; + } + else + { + return pdFALSE; + } +} +/*-----------------------------------------------------------*/ + +void vSerialPutString( xComPortHandle pxPort, const signed portCHAR * const pcString, unsigned portSHORT usStringLength ) +{ +signed portCHAR *pxNext; + + /* A couple of parameters that this port does not use. */ + ( void ) usStringLength; + ( void ) pxPort; + + /* NOTE: This implementation does not handle the queue being full as no + block time is used! */ + + /* The port handle is not required as this driver only supports UART1. */ + ( void ) pxPort; + + /* Send each character in the string, one at a time. */ + pxNext = ( signed portCHAR * ) pcString; + while( *pxNext ) + { + xSerialPutChar( pxPort, *pxNext, serNO_BLOCK ); + pxNext++; + } +} +/*-----------------------------------------------------------*/ + +signed portBASE_TYPE xSerialPutChar( xComPortHandle pxPort, signed portCHAR cOutChar, portTickType xBlockTime ) +{ +signed portBASE_TYPE xReturn; + + if( xQueueSend( xCharsForTx, &cOutChar, xBlockTime ) == pdPASS ) + { + xReturn = pdPASS; + USART_ITConfig( USART3, USART_IT_TXE, ENABLE ); + } + else + { + xReturn = pdFAIL; + } + + return xReturn; +} +/*-----------------------------------------------------------*/ + +void vSerialClose( xComPortHandle xPort ) +{ + /* Not supported as not required by the demo application. */ +} +/*-----------------------------------------------------------*/ + +void USART3_IRQHandler( void ) +{ +portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE; +portCHAR cChar; + + if( USART_GetITStatus( USART3, USART_IT_TXE ) == SET ) + { + /* The interrupt was caused by the THR becoming empty. Are there any + more characters to transmit? */ + if( xQueueReceiveFromISR( xCharsForTx, &cChar, &xHigherPriorityTaskWoken ) == pdTRUE ) + { + /* A character was retrieved from the queue so can be sent to the + THR now. */ + USART_SendData( USART3, cChar ); + } + else + { + USART_ITConfig( USART3, USART_IT_TXE, DISABLE ); + } + } + + if( USART_GetITStatus( USART3, USART_IT_RXNE ) == SET ) + { + cChar = USART_ReceiveData( USART3 ); + xQueueSendFromISR( xRxedChars, &cChar, &xHigherPriorityTaskWoken ); + } + + portEND_SWITCHING_ISR( xHigherPriorityTaskWoken ); +} + + + + + + diff --git a/Demo/Cortex_STM32L152_IAR/settings/RTOSDemo.dbgdt b/Demo/Cortex_STM32L152_IAR/settings/RTOSDemo.dbgdt index dd9da81af..97c967e71 100644 --- a/Demo/Cortex_STM32L152_IAR/settings/RTOSDemo.dbgdt +++ b/Demo/Cortex_STM32L152_IAR/settings/RTOSDemo.dbgdt @@ -19,7 +19,7 @@ - 295272727 + 279272727 @@ -32,11 +32,11 @@ 1 1 - 200125100100100200208100100100200110$PROJ_DIR$\TermIOInput.txt10200100100100100100150300100100100100100100200 + {W}Watch-0:tmppre1200151148100100200208100100100200110$PROJ_DIR$\TermIOInput.txt102001001001001001001503001001001001001001002001001 - + TabID-15530-21362 @@ -44,24 +44,24 @@ Workspace - RTOSDemoRTOSDemo/FreeRTOS_SourceRTOSDemo/System_and_ST_CodeRTOSDemo/System_and_ST_Code/Eval_Board_LibraryRTOSDemo/System_and_ST_Code/Peripheral_Library + RTOSDemoRTOSDemo/FreeRTOS_SourceRTOSDemo/FreeRTOS_Source/PortableRTOSDemo/System_and_ST_CodeRTOSDemo/System_and_ST_Code/Eval_Board_LibraryRTOSDemo/System_and_ST_Code/Peripheral_LibraryRTOSDemo/System_and_ST_Code/Peripheral_Library/misc.c - 0TabID-10464-23570TasksTASKVIEW0TabID-31438-23586QueuesQUEUEVIEW0TabID-18392-8256Terminal I/OTerminalIO0 + 0TabID-10464-23570TasksTASKVIEW0TabID-31438-23586QueuesQUEUEVIEW0TabID-15541-875Terminal I/OTerminalIO0 - TextEditor$WS_DIR$\main.c013961096109TextEditor$WS_DIR$\..\..\Source\portable\IAR\ARM_CM3\port.c016871567156TextEditor$WS_DIR$\..\Common\Minimal\flash.c013158255825TextEditor$WS_DIR$\FreeRTOSConfig.h010555465576TextEditor$WS_DIR$\..\..\Source\tasks.c015895034450344TextEditor$WS_DIR$\..\..\Source\portable\IAR\ARM_CM3\portasm.s012148004800TextEditor$WS_DIR$\..\Common\Minimal\dynamic.c02251135511355TextEditor$WS_DIR$\system_and_ST_code\STM32L1xx_StdPeriph_Driver\inc\stm32l1xx_tim.h05832454724547TextEditor$WS_DIR$\system_and_ST_code\STM32L1xx_StdPeriph_Driver\src\stm32l1xx_tim.c0174461786617888TextEditor$WS_DIR$\system_and_ST_code\STM32L152_EVAL\stm32l152_eval.c030511633116330100000010000001 + TextEditor$WS_DIR$\serial.c095537253720TextEditor$WS_DIR$\main.c010246094609TextEditor$WS_DIR$\ParTest.c04738623862TextEditor$WS_DIR$\FreeRTOSConfig.h08648244840TextEditor$WS_DIR$\..\..\Source\list.c4013670247024TextEditor$WS_DIR$\system_and_ST_code\STM32L152_EVAL\stm32l152_eval.c03151157011570TextEditor$WS_DIR$\..\..\Source\portable\IAR\ARM_CM3\port.c012560236023TextEditor$WS_DIR$\..\Common\Minimal\comtest.c014600TextEditor$WS_DIR$\system_and_ST_code\STM32L1xx_StdPeriph_Driver\src\misc.c011744834483TextEditor$WS_DIR$\system_and_ST_code\CMSIS\CM3\DeviceSupport\ST\STM32L1xx\stm32l1xx.h089425142510100000010000001 - iaridepm.enu1debuggergui.enu1armjlink.enu1-2-2600369-2-2200200119048203666220833613035-2-2600467-2-2200200119048203666279167613035-2-22431682-2-216842451002381249491119048203666241-23141682-2241168473100238174338119048203666 + iaridepm.enu1debuggergui.enu1armjlink.enu1-2-2682369-2-2200200119048203666220833696538-2-2682435-2-2200200119048203666260119696538-2-21611682-2-216841631002381165988119048203666159-22321682-2159168473100238174338119048203666 diff --git a/Demo/Cortex_STM32L152_IAR/settings/RTOSDemo.dni b/Demo/Cortex_STM32L152_IAR/settings/RTOSDemo.dni index 0ff5f031d..0bb910e55 100644 --- a/Demo/Cortex_STM32L152_IAR/settings/RTOSDemo.dni +++ b/Demo/Cortex_STM32L152_IAR/settings/RTOSDemo.dni @@ -1,5 +1,5 @@ [DebugChecksum] -Checksum=-1294035724 +Checksum=317489748 [DisAssemblyWindow] NumStates=_ 1 State 1=_ 1 diff --git a/Demo/Cortex_STM32L152_IAR/settings/RTOSDemo.wsdt b/Demo/Cortex_STM32L152_IAR/settings/RTOSDemo.wsdt index e5687db78..ed80139b9 100644 --- a/Demo/Cortex_STM32L152_IAR/settings/RTOSDemo.wsdt +++ b/Demo/Cortex_STM32L152_IAR/settings/RTOSDemo.wsdt @@ -17,7 +17,7 @@ 20121632481201622 - + TabID-27630-4718 @@ -25,24 +25,24 @@ Workspace - RTOSDemoRTOSDemo/FreeRTOS_SourceRTOSDemo/Standard_Demo_CodeRTOSDemo/System_and_ST_CodeRTOSDemo/System_and_ST_Code/Eval_Board_LibraryRTOSDemo/System_and_ST_Code/Peripheral_Library + RTOSDemoRTOSDemo/FreeRTOS_SourceRTOSDemo/Standard_Demo_Code - 0TabID-10002-7709BuildBuildTabID-18437-21512Debug LogDebug-Log0 + 0TabID-10002-7709BuildBuildTabID-18437-21512Debug LogDebug-Log0 - TextEditor$WS_DIR$\main.c013961096109TextEditor$WS_DIR$\..\..\Source\portable\IAR\ARM_CM3\port.c016871567156TextEditor$WS_DIR$\..\Common\Minimal\flash.c013158255825TextEditor$WS_DIR$\FreeRTOSConfig.h010555465576TextEditor$WS_DIR$\..\..\Source\tasks.c015895034450344TextEditor$WS_DIR$\..\..\Source\portable\IAR\ARM_CM3\portasm.s012148004800TextEditor$WS_DIR$\..\Common\Minimal\dynamic.c02251135511355TextEditor$WS_DIR$\system_and_ST_code\STM32L1xx_StdPeriph_Driver\inc\stm32l1xx_tim.h05832454724547TextEditor$WS_DIR$\system_and_ST_code\STM32L1xx_StdPeriph_Driver\src\stm32l1xx_tim.c0174461786617888TextEditor$WS_DIR$\system_and_ST_code\STM32L152_EVAL\stm32l152_eval.c030511633116330100000010000001 + TextEditor$WS_DIR$\serial.c095537253720TextEditor$WS_DIR$\main.c010246094609TextEditor$WS_DIR$\ParTest.c04738623862TextEditor$WS_DIR$\FreeRTOSConfig.h08648244840TextEditor$WS_DIR$\..\..\Source\list.c4013670247024TextEditor$WS_DIR$\system_and_ST_code\STM32L152_EVAL\stm32l152_eval.c03151157011570TextEditor$WS_DIR$\..\..\Source\portable\IAR\ARM_CM3\port.c012560236023TextEditor$WS_DIR$\..\Common\Minimal\comtest.c014600TextEditor$WS_DIR$\system_and_ST_code\STM32L1xx_StdPeriph_Driver\src\misc.c011744834483TextEditor$WS_DIR$\system_and_ST_code\CMSIS\CM3\DeviceSupport\ST\STM32L1xx\stm32l1xx.h089425142510100000010000001 - iaridepm.enu1-2-2740438-2-2200200119048203666261905755601-2-21981682-2-216842001002381203666119048203666 + iaridepm.enu1-2-2740438-2-2200200119048203666261905755601-2-21981682-2-216842001002381203666119048203666 diff --git a/Demo/Cortex_STM32L152_IAR/system_and_ST_code/STM32L1xx_StdPeriph_Driver/inc/stm32l1xx_usart.h b/Demo/Cortex_STM32L152_IAR/system_and_ST_code/STM32L1xx_StdPeriph_Driver/inc/stm32l1xx_usart.h new file mode 100644 index 000000000..c6a14169b --- /dev/null +++ b/Demo/Cortex_STM32L152_IAR/system_and_ST_code/STM32L1xx_StdPeriph_Driver/inc/stm32l1xx_usart.h @@ -0,0 +1,399 @@ +/** + ****************************************************************************** + * @file stm32l1xx_usart.h + * @author MCD Application Team + * @version V1.0.0RC1 + * @date 07/02/2010 + * @brief This file contains all the functions prototypes for the USART + * firmware library. + ****************************************************************************** + * @copy + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + *

© COPYRIGHT 2010 STMicroelectronics

+ */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32L1xx_USART_H +#define __STM32L1xx_USART_H + +#ifdef __cplusplus + extern "C" { +#endif + +/* Includes ------------------------------------------------------------------*/ +#include "stm32l1xx.h" + +/** @addtogroup STM32L1xx_StdPeriph_Driver + * @{ + */ + +/** @addtogroup USART + * @{ + */ + +/** @defgroup USART_Exported_Types + * @{ + */ + +/** + * @brief USART Init Structure definition + */ + +typedef struct +{ + uint32_t USART_BaudRate; /*!< This member configures the USART communication baud rate. + The baud rate is computed using the following formula: + - IntegerDivider = ((PCLKx) / (16 * (USART_InitStruct->USART_BaudRate))) + - FractionalDivider = ((IntegerDivider - ((u32) IntegerDivider)) * 16) + 0.5 */ + + uint16_t USART_WordLength; /*!< Specifies the number of data bits transmitted or received in a frame. + This parameter can be a value of @ref USART_Word_Length */ + + uint16_t USART_StopBits; /*!< Specifies the number of stop bits transmitted. + This parameter can be a value of @ref USART_Stop_Bits */ + + uint16_t USART_Parity; /*!< Specifies the parity mode. + This parameter can be a value of @ref USART_Parity + @note When parity is enabled, the computed parity is inserted + at the MSB position of the transmitted data (9th bit when + the word length is set to 9 data bits; 8th bit when the + word length is set to 8 data bits). */ + + uint16_t USART_Mode; /*!< Specifies wether the Receive or Transmit mode is enabled or disabled. + This parameter can be a value of @ref USART_Mode */ + + uint16_t USART_HardwareFlowControl; /*!< Specifies wether the hardware flow control mode is enabled + or disabled. + This parameter can be a value of @ref USART_Hardware_Flow_Control */ +} USART_InitTypeDef; + +/** + * @brief USART Clock Init Structure definition + */ + +typedef struct +{ + + uint16_t USART_Clock; /*!< Specifies whether the USART clock is enabled or disabled. + This parameter can be a value of @ref USART_Clock */ + + uint16_t USART_CPOL; /*!< Specifies the steady state value of the serial clock. + This parameter can be a value of @ref USART_Clock_Polarity */ + + uint16_t USART_CPHA; /*!< Specifies the clock transition on which the bit capture is made. + This parameter can be a value of @ref USART_Clock_Phase */ + + uint16_t USART_LastBit; /*!< Specifies whether the clock pulse corresponding to the last transmitted + data bit (MSB) has to be output on the SCLK pin in synchronous mode. + This parameter can be a value of @ref USART_Last_Bit */ +} USART_ClockInitTypeDef; + +/** + * @} + */ + +/** @defgroup USART_Exported_Constants + * @{ + */ + +#define IS_USART_ALL_PERIPH(PERIPH) (((PERIPH) == USART1) || \ + ((PERIPH) == USART2) || \ + ((PERIPH) == USART3)) + +/** @defgroup USART_Word_Length + * @{ + */ + +#define USART_WordLength_8b ((uint16_t)0x0000) +#define USART_WordLength_9b ((uint16_t)0x1000) + +#define IS_USART_WORD_LENGTH(LENGTH) (((LENGTH) == USART_WordLength_8b) || \ + ((LENGTH) == USART_WordLength_9b)) +/** + * @} + */ + +/** @defgroup USART_Stop_Bits + * @{ + */ + +#define USART_StopBits_1 ((uint16_t)0x0000) +#define USART_StopBits_0_5 ((uint16_t)0x1000) +#define USART_StopBits_2 ((uint16_t)0x2000) +#define USART_StopBits_1_5 ((uint16_t)0x3000) +#define IS_USART_STOPBITS(STOPBITS) (((STOPBITS) == USART_StopBits_1) || \ + ((STOPBITS) == USART_StopBits_0_5) || \ + ((STOPBITS) == USART_StopBits_2) || \ + ((STOPBITS) == USART_StopBits_1_5)) +/** + * @} + */ + +/** @defgroup USART_Parity + * @{ + */ + +#define USART_Parity_No ((uint16_t)0x0000) +#define USART_Parity_Even ((uint16_t)0x0400) +#define USART_Parity_Odd ((uint16_t)0x0600) +#define IS_USART_PARITY(PARITY) (((PARITY) == USART_Parity_No) || \ + ((PARITY) == USART_Parity_Even) || \ + ((PARITY) == USART_Parity_Odd)) +/** + * @} + */ + +/** @defgroup USART_Mode + * @{ + */ + +#define USART_Mode_Rx ((uint16_t)0x0004) +#define USART_Mode_Tx ((uint16_t)0x0008) +#define IS_USART_MODE(MODE) ((((MODE) & (uint16_t)0xFFF3) == 0x00) && ((MODE) != (uint16_t)0x00)) +/** + * @} + */ + +/** @defgroup USART_Hardware_Flow_Control + * @{ + */ +#define USART_HardwareFlowControl_None ((uint16_t)0x0000) +#define USART_HardwareFlowControl_RTS ((uint16_t)0x0100) +#define USART_HardwareFlowControl_CTS ((uint16_t)0x0200) +#define USART_HardwareFlowControl_RTS_CTS ((uint16_t)0x0300) +#define IS_USART_HARDWARE_FLOW_CONTROL(CONTROL)\ + (((CONTROL) == USART_HardwareFlowControl_None) || \ + ((CONTROL) == USART_HardwareFlowControl_RTS) || \ + ((CONTROL) == USART_HardwareFlowControl_CTS) || \ + ((CONTROL) == USART_HardwareFlowControl_RTS_CTS)) +/** + * @} + */ + +/** @defgroup USART_Clock + * @{ + */ +#define USART_Clock_Disable ((uint16_t)0x0000) +#define USART_Clock_Enable ((uint16_t)0x0800) +#define IS_USART_CLOCK(CLOCK) (((CLOCK) == USART_Clock_Disable) || \ + ((CLOCK) == USART_Clock_Enable)) +/** + * @} + */ + +/** @defgroup USART_Clock_Polarity + * @{ + */ + +#define USART_CPOL_Low ((uint16_t)0x0000) +#define USART_CPOL_High ((uint16_t)0x0400) +#define IS_USART_CPOL(CPOL) (((CPOL) == USART_CPOL_Low) || ((CPOL) == USART_CPOL_High)) + +/** + * @} + */ + +/** @defgroup USART_Clock_Phase + * @{ + */ + +#define USART_CPHA_1Edge ((uint16_t)0x0000) +#define USART_CPHA_2Edge ((uint16_t)0x0200) +#define IS_USART_CPHA(CPHA) (((CPHA) == USART_CPHA_1Edge) || ((CPHA) == USART_CPHA_2Edge)) + +/** + * @} + */ + +/** @defgroup USART_Last_Bit + * @{ + */ + +#define USART_LastBit_Disable ((uint16_t)0x0000) +#define USART_LastBit_Enable ((uint16_t)0x0100) +#define IS_USART_LASTBIT(LASTBIT) (((LASTBIT) == USART_LastBit_Disable) || \ + ((LASTBIT) == USART_LastBit_Enable)) +/** + * @} + */ + +/** @defgroup USART_Interrupt_definition + * @{ + */ + +#define USART_IT_PE ((uint16_t)0x0028) +#define USART_IT_TXE ((uint16_t)0x0727) +#define USART_IT_TC ((uint16_t)0x0626) +#define USART_IT_RXNE ((uint16_t)0x0525) +#define USART_IT_IDLE ((uint16_t)0x0424) +#define USART_IT_LBD ((uint16_t)0x0846) +#define USART_IT_CTS ((uint16_t)0x096A) +#define USART_IT_ERR ((uint16_t)0x0060) +#define USART_IT_ORE ((uint16_t)0x0360) +#define USART_IT_NE ((uint16_t)0x0260) +#define USART_IT_FE ((uint16_t)0x0160) +#define IS_USART_CONFIG_IT(IT) (((IT) == USART_IT_PE) || ((IT) == USART_IT_TXE) || \ + ((IT) == USART_IT_TC) || ((IT) == USART_IT_RXNE) || \ + ((IT) == USART_IT_IDLE) || ((IT) == USART_IT_LBD) || \ + ((IT) == USART_IT_CTS) || ((IT) == USART_IT_ERR)) +#define IS_USART_GET_IT(IT) (((IT) == USART_IT_PE) || ((IT) == USART_IT_TXE) || \ + ((IT) == USART_IT_TC) || ((IT) == USART_IT_RXNE) || \ + ((IT) == USART_IT_IDLE) || ((IT) == USART_IT_LBD) || \ + ((IT) == USART_IT_CTS) || ((IT) == USART_IT_ORE) || \ + ((IT) == USART_IT_NE) || ((IT) == USART_IT_FE)) +#define IS_USART_CLEAR_IT(IT) (((IT) == USART_IT_TC) || ((IT) == USART_IT_RXNE) || \ + ((IT) == USART_IT_LBD) || ((IT) == USART_IT_CTS)) +/** + * @} + */ + +/** @defgroup USART_DMA_Requests + * @{ + */ + +#define USART_DMAReq_Tx ((uint16_t)0x0080) +#define USART_DMAReq_Rx ((uint16_t)0x0040) +#define IS_USART_DMAREQ(DMAREQ) ((((DMAREQ) & (uint16_t)0xFF3F) == 0x00) && ((DMAREQ) != (uint16_t)0x00)) + +/** + * @} + */ + +/** @defgroup USART_WakeUp_methods + * @{ + */ + +#define USART_WakeUp_IdleLine ((uint16_t)0x0000) +#define USART_WakeUp_AddressMark ((uint16_t)0x0800) +#define IS_USART_WAKEUP(WAKEUP) (((WAKEUP) == USART_WakeUp_IdleLine) || \ + ((WAKEUP) == USART_WakeUp_AddressMark)) +/** + * @} + */ + +/** @defgroup USART_LIN_Break_Detection_Length + * @{ + */ + +#define USART_LINBreakDetectLength_10b ((uint16_t)0x0000) +#define USART_LINBreakDetectLength_11b ((uint16_t)0x0020) +#define IS_USART_LIN_BREAK_DETECT_LENGTH(LENGTH) \ + (((LENGTH) == USART_LINBreakDetectLength_10b) || \ + ((LENGTH) == USART_LINBreakDetectLength_11b)) +/** + * @} + */ + +/** @defgroup USART_IrDA_Low_Power + * @{ + */ + +#define USART_IrDAMode_LowPower ((uint16_t)0x0004) +#define USART_IrDAMode_Normal ((uint16_t)0x0000) +#define IS_USART_IRDA_MODE(MODE) (((MODE) == USART_IrDAMode_LowPower) || \ + ((MODE) == USART_IrDAMode_Normal)) +/** + * @} + */ + +/** @defgroup USART_Flags + * @{ + */ + +#define USART_FLAG_CTS ((uint16_t)0x0200) +#define USART_FLAG_LBD ((uint16_t)0x0100) +#define USART_FLAG_TXE ((uint16_t)0x0080) +#define USART_FLAG_TC ((uint16_t)0x0040) +#define USART_FLAG_RXNE ((uint16_t)0x0020) +#define USART_FLAG_IDLE ((uint16_t)0x0010) +#define USART_FLAG_ORE ((uint16_t)0x0008) +#define USART_FLAG_NE ((uint16_t)0x0004) +#define USART_FLAG_FE ((uint16_t)0x0002) +#define USART_FLAG_PE ((uint16_t)0x0001) +#define IS_USART_FLAG(FLAG) (((FLAG) == USART_FLAG_PE) || ((FLAG) == USART_FLAG_TXE) || \ + ((FLAG) == USART_FLAG_TC) || ((FLAG) == USART_FLAG_RXNE) || \ + ((FLAG) == USART_FLAG_IDLE) || ((FLAG) == USART_FLAG_LBD) || \ + ((FLAG) == USART_FLAG_CTS) || ((FLAG) == USART_FLAG_ORE) || \ + ((FLAG) == USART_FLAG_NE) || ((FLAG) == USART_FLAG_FE)) + +#define IS_USART_CLEAR_FLAG(FLAG) ((((FLAG) & (uint16_t)0xFC9F) == 0x00) && ((FLAG) != (uint16_t)0x00)) + +#define IS_USART_BAUDRATE(BAUDRATE) (((BAUDRATE) > 0) && ((BAUDRATE) < 0x003D0901)) +#define IS_USART_ADDRESS(ADDRESS) ((ADDRESS) <= 0xF) +#define IS_USART_DATA(DATA) ((DATA) <= 0x1FF) + +/** + * @} + */ + +/** + * @} + */ + +/** @defgroup USART_Exported_Macros + * @{ + */ + +/** + * @} + */ + +/** @defgroup USART_Exported_Functions + * @{ + */ + +void USART_DeInit(USART_TypeDef* USARTx); +void USART_Init(USART_TypeDef* USARTx, USART_InitTypeDef* USART_InitStruct); +void USART_StructInit(USART_InitTypeDef* USART_InitStruct); +void USART_ClockInit(USART_TypeDef* USARTx, USART_ClockInitTypeDef* USART_ClockInitStruct); +void USART_ClockStructInit(USART_ClockInitTypeDef* USART_ClockInitStruct); +void USART_Cmd(USART_TypeDef* USARTx, FunctionalState NewState); +void USART_ITConfig(USART_TypeDef* USARTx, uint16_t USART_IT, FunctionalState NewState); +void USART_DMACmd(USART_TypeDef* USARTx, uint16_t USART_DMAReq, FunctionalState NewState); +void USART_SetAddress(USART_TypeDef* USARTx, uint8_t USART_Address); +void USART_WakeUpConfig(USART_TypeDef* USARTx, uint16_t USART_WakeUp); +void USART_ReceiverWakeUpCmd(USART_TypeDef* USARTx, FunctionalState NewState); +void USART_LINBreakDetectLengthConfig(USART_TypeDef* USARTx, uint16_t USART_LINBreakDetectLength); +void USART_LINCmd(USART_TypeDef* USARTx, FunctionalState NewState); +void USART_SendData(USART_TypeDef* USARTx, uint16_t Data); +uint16_t USART_ReceiveData(USART_TypeDef* USARTx); +void USART_SendBreak(USART_TypeDef* USARTx); +void USART_SetGuardTime(USART_TypeDef* USARTx, uint8_t USART_GuardTime); +void USART_SetPrescaler(USART_TypeDef* USARTx, uint8_t USART_Prescaler); +void USART_SmartCardCmd(USART_TypeDef* USARTx, FunctionalState NewState); +void USART_SmartCardNACKCmd(USART_TypeDef* USARTx, FunctionalState NewState); +void USART_HalfDuplexCmd(USART_TypeDef* USARTx, FunctionalState NewState); +void USART_OverSampling8Cmd(USART_TypeDef* USARTx, FunctionalState NewState); +void USART_OneBitMethodCmd(USART_TypeDef* USARTx, FunctionalState NewState); +void USART_IrDAConfig(USART_TypeDef* USARTx, uint16_t USART_IrDAMode); +void USART_IrDACmd(USART_TypeDef* USARTx, FunctionalState NewState); +FlagStatus USART_GetFlagStatus(USART_TypeDef* USARTx, uint16_t USART_FLAG); +void USART_ClearFlag(USART_TypeDef* USARTx, uint16_t USART_FLAG); +ITStatus USART_GetITStatus(USART_TypeDef* USARTx, uint16_t USART_IT); +void USART_ClearITPendingBit(USART_TypeDef* USARTx, uint16_t USART_IT); + +#ifdef __cplusplus +} +#endif + +#endif /* __STM32L1xx_USART_H */ +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/ diff --git a/Demo/Cortex_STM32L152_IAR/system_and_ST_code/STM32L1xx_StdPeriph_Driver/src/stm32l1xx_usart.c b/Demo/Cortex_STM32L152_IAR/system_and_ST_code/STM32L1xx_StdPeriph_Driver/src/stm32l1xx_usart.c new file mode 100644 index 000000000..90c149253 --- /dev/null +++ b/Demo/Cortex_STM32L152_IAR/system_and_ST_code/STM32L1xx_StdPeriph_Driver/src/stm32l1xx_usart.c @@ -0,0 +1,995 @@ +/** + ****************************************************************************** + * @file stm32l1xx_usart.c + * @author MCD Application Team + * @version V1.0.0RC1 + * @date 07/02/2010 + * @brief This file provides all the USART firmware functions. + ****************************************************************************** + * @copy + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + *

© COPYRIGHT 2010 STMicroelectronics

+ */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32l1xx_usart.h" +#include "stm32l1xx_rcc.h" + +/** @addtogroup STM32L1xx_StdPeriph_Driver + * @{ + */ + +/** @defgroup USART + * @brief USART driver modules + * @{ + */ + +/** @defgroup USART_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @defgroup USART_Private_Defines + * @{ + */ + +/*!< USART CR1 register clear Mask ((~(uint16_t)0xE9F3)) */ +#define CR1_CLEAR_MASK ((uint16_t)(USART_CR1_M | USART_CR1_PCE | \ + USART_CR1_PS | USART_CR1_TE | \ + USART_CR1_RE)) + +/*!< USART CR2 register clock bits clear Mask ((~(uint16_t)0xF0FF)) */ +#define CR2_CLOCK_CLEAR_MASK ((uint16_t)(USART_CR2_CLKEN | USART_CR2_CPOL | \ + USART_CR2_CPHA | USART_CR2_LBCL)) + +/*!< USART CR3 register clear Mask ((~(uint16_t)0xFCFF)) */ +#define CR3_CLEAR_MASK ((uint16_t)(USART_CR3_RTSE | USART_CR3_CTSE)) + +/*!< USART Interrupts mask */ +#define IT_MASK ((uint16_t)0x001F) + +/** + * @} + */ + +/** @defgroup USART_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @defgroup USART_Private_Variables + * @{ + */ + +/** + * @} + */ + +/** @defgroup USART_Private_FunctionPrototypes + * @{ + */ + +/** + * @} + */ + +/** @defgroup USART_Private_Functions + * @{ + */ + +/** + * @brief Deinitializes the USARTx peripheral registers to their default reset values. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: USART1, USART2 or USART3. + * @retval None + */ +void USART_DeInit(USART_TypeDef* USARTx) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + + if (USARTx == USART1) + { + RCC_APB2PeriphResetCmd(RCC_APB2Periph_USART1, ENABLE); + RCC_APB2PeriphResetCmd(RCC_APB2Periph_USART1, DISABLE); + } + else if (USARTx == USART2) + { + RCC_APB1PeriphResetCmd(RCC_APB1Periph_USART2, ENABLE); + RCC_APB1PeriphResetCmd(RCC_APB1Periph_USART2, DISABLE); + } + else + { + if (USARTx == USART3) + { + RCC_APB1PeriphResetCmd(RCC_APB1Periph_USART3, ENABLE); + RCC_APB1PeriphResetCmd(RCC_APB1Periph_USART3, DISABLE); + } + } +} + +/** + * @brief Initializes the USARTx peripheral according to the specified + * parameters in the USART_InitStruct . + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param USART_InitStruct: pointer to a USART_InitTypeDef structure + * that contains the configuration information for the specified USART peripheral. + * @retval None + */ +void USART_Init(USART_TypeDef* USARTx, USART_InitTypeDef* USART_InitStruct) +{ + uint32_t tmpreg = 0x00, apbclock = 0x00; + uint32_t integerdivider = 0x00; + uint32_t fractionaldivider = 0x00; + RCC_ClocksTypeDef RCC_ClocksStatus; + + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_USART_BAUDRATE(USART_InitStruct->USART_BaudRate)); + assert_param(IS_USART_WORD_LENGTH(USART_InitStruct->USART_WordLength)); + assert_param(IS_USART_STOPBITS(USART_InitStruct->USART_StopBits)); + assert_param(IS_USART_PARITY(USART_InitStruct->USART_Parity)); + assert_param(IS_USART_MODE(USART_InitStruct->USART_Mode)); + assert_param(IS_USART_HARDWARE_FLOW_CONTROL(USART_InitStruct->USART_HardwareFlowControl)); + +/*---------------------------- USART CR2 Configuration -----------------------*/ + tmpreg = USARTx->CR2; + /* Clear STOP[13:12] bits */ + tmpreg &= (uint32_t)~((uint32_t)USART_CR2_STOP); + + /* Configure the USART Stop Bits, Clock, CPOL, CPHA and LastBit ------------*/ + /* Set STOP[13:12] bits according to USART_StopBits value */ + tmpreg |= (uint32_t)USART_InitStruct->USART_StopBits; + + /* Write to USART CR2 */ + USARTx->CR2 = (uint16_t)tmpreg; + +/*---------------------------- USART CR1 Configuration -----------------------*/ + tmpreg = USARTx->CR1; + /* Clear M, PCE, PS, TE and RE bits */ + tmpreg &= (uint32_t)~((uint32_t)CR1_CLEAR_MASK); + + /* Configure the USART Word Length, Parity and mode ----------------------- */ + /* Set the M bits according to USART_WordLength value */ + /* Set PCE and PS bits according to USART_Parity value */ + /* Set TE and RE bits according to USART_Mode value */ + tmpreg |= (uint32_t)USART_InitStruct->USART_WordLength | USART_InitStruct->USART_Parity | + USART_InitStruct->USART_Mode; + + /* Write to USART CR1 */ + USARTx->CR1 = (uint16_t)tmpreg; + +/*---------------------------- USART CR3 Configuration -----------------------*/ + tmpreg = USARTx->CR3; + /* Clear CTSE and RTSE bits */ + tmpreg &= (uint32_t)~((uint32_t)CR3_CLEAR_MASK); + + /* Configure the USART HFC -------------------------------------------------*/ + /* Set CTSE and RTSE bits according to USART_HardwareFlowControl value */ + tmpreg |= USART_InitStruct->USART_HardwareFlowControl; + + /* Write to USART CR3 */ + USARTx->CR3 = (uint16_t)tmpreg; + +/*---------------------------- USART BRR Configuration -----------------------*/ + /* Configure the USART Baud Rate -------------------------------------------*/ + RCC_GetClocksFreq(&RCC_ClocksStatus); + if (USARTx == USART1) + { + apbclock = RCC_ClocksStatus.PCLK2_Frequency; + } + else + { + apbclock = RCC_ClocksStatus.PCLK1_Frequency; + } + + /* Determine the integer part */ + if ((USARTx->CR1 & USART_CR1_OVER8) != 0) + { + /* Integer part computing in case Oversampling mode is 8 Samples */ + integerdivider = ((25 * apbclock) / (2 * (USART_InitStruct->USART_BaudRate))); + } + else /* if ((USARTx->CR1 & CR1_OVER8_Set) == 0) */ + { + /* Integer part computing in case Oversampling mode is 16 Samples */ + integerdivider = ((25 * apbclock) / (4 * (USART_InitStruct->USART_BaudRate))); + } + tmpreg = (integerdivider / 100) << 4; + + /* Determine the fractional part */ + fractionaldivider = integerdivider - (100 * (tmpreg >> 4)); + + /* Implement the fractional part in the register */ + if ((USARTx->CR1 & USART_CR1_OVER8) != 0) + { + tmpreg |= ((((fractionaldivider * 8) + 50) / 100)) & ((uint8_t)0x07); + } + else /* if ((USARTx->CR1 & CR1_OVER8_Set) == 0) */ + { + tmpreg |= ((((fractionaldivider * 16) + 50) / 100)) & ((uint8_t)0x0F); + } + + /* Write to USART BRR */ + USARTx->BRR = (uint16_t)tmpreg; +} + +/** + * @brief Fills each USART_InitStruct member with its default value. + * @param USART_InitStruct: pointer to a USART_InitTypeDef structure + * which will be initialized. + * @retval None + */ +void USART_StructInit(USART_InitTypeDef* USART_InitStruct) +{ + /* USART_InitStruct members default value */ + USART_InitStruct->USART_BaudRate = 9600; + USART_InitStruct->USART_WordLength = USART_WordLength_8b; + USART_InitStruct->USART_StopBits = USART_StopBits_1; + USART_InitStruct->USART_Parity = USART_Parity_No ; + USART_InitStruct->USART_Mode = USART_Mode_Rx | USART_Mode_Tx; + USART_InitStruct->USART_HardwareFlowControl = USART_HardwareFlowControl_None; +} + +/** + * @brief Initializes the USARTx peripheral Clock according to the + * specified parameters in the USART_ClockInitStruct . + * @param USARTx: where x can be 1, 2, 3 to select the USART peripheral. + * @param USART_ClockInitStruct: pointer to a USART_ClockInitTypeDef + * structure that contains the configuration information for the specified + * USART peripheral. + * @retval None + */ +void USART_ClockInit(USART_TypeDef* USARTx, USART_ClockInitTypeDef* USART_ClockInitStruct) +{ + uint32_t tmpreg = 0x00; + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_USART_CLOCK(USART_ClockInitStruct->USART_Clock)); + assert_param(IS_USART_CPOL(USART_ClockInitStruct->USART_CPOL)); + assert_param(IS_USART_CPHA(USART_ClockInitStruct->USART_CPHA)); + assert_param(IS_USART_LASTBIT(USART_ClockInitStruct->USART_LastBit)); + +/*---------------------------- USART CR2 Configuration -----------------------*/ + tmpreg = USARTx->CR2; + /* Clear CLKEN, CPOL, CPHA and LBCL bits */ + tmpreg &= (uint32_t)~((uint32_t)CR2_CLOCK_CLEAR_MASK); + /* Configure the USART Clock, CPOL, CPHA and LastBit ------------*/ + /* Set CLKEN bit according to USART_Clock value */ + /* Set CPOL bit according to USART_CPOL value */ + /* Set CPHA bit according to USART_CPHA value */ + /* Set LBCL bit according to USART_LastBit value */ + tmpreg |= (uint32_t)USART_ClockInitStruct->USART_Clock | USART_ClockInitStruct->USART_CPOL | + USART_ClockInitStruct->USART_CPHA | USART_ClockInitStruct->USART_LastBit; + /* Write to USART CR2 */ + USARTx->CR2 = (uint16_t)tmpreg; +} + +/** + * @brief Fills each USART_ClockInitStruct member with its default value. + * @param USART_ClockInitStruct: pointer to a USART_ClockInitTypeDef + * structure which will be initialized. + * @retval None + */ +void USART_ClockStructInit(USART_ClockInitTypeDef* USART_ClockInitStruct) +{ + /* USART_ClockInitStruct members default value */ + USART_ClockInitStruct->USART_Clock = USART_Clock_Disable; + USART_ClockInitStruct->USART_CPOL = USART_CPOL_Low; + USART_ClockInitStruct->USART_CPHA = USART_CPHA_1Edge; + USART_ClockInitStruct->USART_LastBit = USART_LastBit_Disable; +} + +/** + * @brief Enables or disables the specified USART peripheral. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param NewState: new state of the USARTx peripheral. + * This parameter can be: ENABLE or DISABLE. + * @retval None + */ +void USART_Cmd(USART_TypeDef* USARTx, FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + if (NewState != DISABLE) + { + /* Enable the selected USART by setting the UE bit in the CR1 register */ + USARTx->CR1 |= USART_CR1_UE; + } + else + { + /* Disable the selected USART by clearing the UE bit in the CR1 register */ + USARTx->CR1 &= (uint16_t)~((uint16_t)USART_CR1_UE); + } +} + +/** + * @brief Enables or disables the specified USART interrupts. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param USART_IT: specifies the USART interrupt sources to be enabled or disabled. + * This parameter can be one of the following values: + * @arg USART_IT_CTS: CTS change interrupt (not available for UART4 and UART5) + * @arg USART_IT_LBD: LIN Break detection interrupt + * @arg USART_IT_TXE: Tansmit Data Register empty interrupt + * @arg USART_IT_TC: Transmission complete interrupt + * @arg USART_IT_RXNE: Receive Data register not empty interrupt + * @arg USART_IT_IDLE: Idle line detection interrupt + * @arg USART_IT_PE: Parity Error interrupt + * @arg USART_IT_ERR: Error interrupt(Frame error, noise error, overrun error) + * @param NewState: new state of the specified USARTx interrupts. + * This parameter can be: ENABLE or DISABLE. + * @retval None + */ +void USART_ITConfig(USART_TypeDef* USARTx, uint16_t USART_IT, FunctionalState NewState) +{ + uint32_t usartreg = 0x00, itpos = 0x00, itmask = 0x00; + uint32_t usartxbase = 0x00; + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_USART_CONFIG_IT(USART_IT)); + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + usartxbase = (uint32_t)USARTx; + + /* Get the USART register index */ + usartreg = (((uint8_t)USART_IT) >> 0x05); + + /* Get the interrupt position */ + itpos = USART_IT & IT_MASK; + itmask = (((uint32_t)0x01) << itpos); + + if (usartreg == 0x01) /* The IT is in CR1 register */ + { + usartxbase += 0x0C; + } + else if (usartreg == 0x02) /* The IT is in CR2 register */ + { + usartxbase += 0x10; + } + else /* The IT is in CR3 register */ + { + usartxbase += 0x14; + } + if (NewState != DISABLE) + { + *(__IO uint32_t*)usartxbase |= itmask; + } + else + { + *(__IO uint32_t*)usartxbase &= ~itmask; + } +} + +/** + * @brief Enables or disables the USART’s DMA interface. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param USART_DMAReq: specifies the DMA request. + * This parameter can be any combination of the following values: + * @arg USART_DMAReq_Tx: USART DMA transmit request + * @arg USART_DMAReq_Rx: USART DMA receive request + * @param NewState: new state of the DMA Request sources. + * This parameter can be: ENABLE or DISABLE. + * @note The DMA mode is not available for UART5. + * @retval None + */ +void USART_DMACmd(USART_TypeDef* USARTx, uint16_t USART_DMAReq, FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_USART_DMAREQ(USART_DMAReq)); + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + if (NewState != DISABLE) + { + /* Enable the DMA transfer for selected requests by setting the DMAT and/or + DMAR bits in the USART CR3 register */ + USARTx->CR3 |= USART_DMAReq; + } + else + { + /* Disable the DMA transfer for selected requests by clearing the DMAT and/or + DMAR bits in the USART CR3 register */ + USARTx->CR3 &= (uint16_t)~USART_DMAReq; + } +} + +/** + * @brief Sets the address of the USART node. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param USART_Address: Indicates the address of the USART node. + * @retval None + */ +void USART_SetAddress(USART_TypeDef* USARTx, uint8_t USART_Address) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_USART_ADDRESS(USART_Address)); + + /* Clear the USART address */ + USARTx->CR2 &= (uint16_t)~((uint16_t)USART_CR2_ADD); + /* Set the USART address node */ + USARTx->CR2 |= USART_Address; +} + +/** + * @brief Selects the USART WakeUp method. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param USART_WakeUp: specifies the USART wakeup method. + * This parameter can be one of the following values: + * @arg USART_WakeUp_IdleLine: WakeUp by an idle line detection + * @arg USART_WakeUp_AddressMark: WakeUp by an address mark + * @retval None + */ +void USART_WakeUpConfig(USART_TypeDef* USARTx, uint16_t USART_WakeUp) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_USART_WAKEUP(USART_WakeUp)); + + USARTx->CR1 &= (uint16_t)~((uint16_t)USART_CR1_WAKE); + USARTx->CR1 |= USART_WakeUp; +} + +/** + * @brief Determines if the USART is in mute mode or not. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param NewState: new state of the USART mute mode. + * This parameter can be: ENABLE or DISABLE. + * @retval None + */ +void USART_ReceiverWakeUpCmd(USART_TypeDef* USARTx, FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + if (NewState != DISABLE) + { + /* Enable the USART mute mode by setting the RWU bit in the CR1 register */ + USARTx->CR1 |= USART_CR1_RWU; + } + else + { + /* Disable the USART mute mode by clearing the RWU bit in the CR1 register */ + USARTx->CR1 &= (uint16_t)~((uint16_t)USART_CR1_RWU); + } +} + +/** + * @brief Sets the USART LIN Break detection length. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param USART_LINBreakDetectLength: specifies the LIN break detection length. + * This parameter can be one of the following values: + * @arg USART_LINBreakDetectLength_10b: 10-bit break detection + * @arg USART_LINBreakDetectLength_11b: 11-bit break detection + * @retval None + */ +void USART_LINBreakDetectLengthConfig(USART_TypeDef* USARTx, uint16_t USART_LINBreakDetectLength) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_USART_LIN_BREAK_DETECT_LENGTH(USART_LINBreakDetectLength)); + + USARTx->CR2 &= (uint16_t)~((uint16_t)USART_CR2_LBDL); + USARTx->CR2 |= USART_LINBreakDetectLength; +} + +/** + * @brief Enables or disables the USART’s LIN mode. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param NewState: new state of the USART LIN mode. + * This parameter can be: ENABLE or DISABLE. + * @retval None + */ +void USART_LINCmd(USART_TypeDef* USARTx, FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + if (NewState != DISABLE) + { + /* Enable the LIN mode by setting the LINEN bit in the CR2 register */ + USARTx->CR2 |= USART_CR2_LINEN; + } + else + { + /* Disable the LIN mode by clearing the LINEN bit in the CR2 register */ + USARTx->CR2 &= (uint16_t)~((uint16_t)USART_CR2_LINEN); + } +} + +/** + * @brief Transmits single data through the USARTx peripheral. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param Data: the data to transmit. + * @retval None + */ +void USART_SendData(USART_TypeDef* USARTx, uint16_t Data) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_USART_DATA(Data)); + + /* Transmit Data */ + USARTx->DR = (Data & (uint16_t)0x01FF); +} + +/** + * @brief Returns the most recent received data by the USARTx peripheral. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @retval The received data. + */ +uint16_t USART_ReceiveData(USART_TypeDef* USARTx) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + + /* Receive Data */ + return (uint16_t)(USARTx->DR & (uint16_t)0x01FF); +} + +/** + * @brief Transmits break characters. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @retval None + */ +void USART_SendBreak(USART_TypeDef* USARTx) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + + /* Send break characters */ + USARTx->CR1 |= USART_CR1_SBK; +} + +/** + * @brief Sets the specified USART guard time. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param USART_GuardTime: specifies the guard time. + * @note The guard time bits are not available for UART4 and UART5. + * @retval None + */ +void USART_SetGuardTime(USART_TypeDef* USARTx, uint8_t USART_GuardTime) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + + /* Clear the USART Guard time */ + USARTx->GTPR &= USART_GTPR_PSC; + /* Set the USART guard time */ + USARTx->GTPR |= (uint16_t)((uint16_t)USART_GuardTime << 0x08); +} + +/** + * @brief Sets the system clock prescaler. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param USART_Prescaler: specifies the prescaler clock. + * @note The function is used for IrDA mode with UART4 and UART5. + * @retval None + */ +void USART_SetPrescaler(USART_TypeDef* USARTx, uint8_t USART_Prescaler) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + + /* Clear the USART prescaler */ + USARTx->GTPR &= USART_GTPR_GT; + /* Set the USART prescaler */ + USARTx->GTPR |= USART_Prescaler; +} + +/** + * @brief Enables or disables the USART’s Smart Card mode. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param NewState: new state of the Smart Card mode. + * This parameter can be: ENABLE or DISABLE. + * @note The Smart Card mode is not available for UART4 and UART5. + * @retval None + */ +void USART_SmartCardCmd(USART_TypeDef* USARTx, FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_FUNCTIONAL_STATE(NewState)); + if (NewState != DISABLE) + { + /* Enable the SC mode by setting the SCEN bit in the CR3 register */ + USARTx->CR3 |= USART_CR3_SCEN; + } + else + { + /* Disable the SC mode by clearing the SCEN bit in the CR3 register */ + USARTx->CR3 &= (uint16_t)~((uint16_t)USART_CR3_SCEN); + } +} + +/** + * @brief Enables or disables NACK transmission. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param NewState: new state of the NACK transmission. + * This parameter can be: ENABLE or DISABLE. + * @note The Smart Card mode is not available for UART4 and UART5. + * @retval None + */ +void USART_SmartCardNACKCmd(USART_TypeDef* USARTx, FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_FUNCTIONAL_STATE(NewState)); + if (NewState != DISABLE) + { + /* Enable the NACK transmission by setting the NACK bit in the CR3 register */ + USARTx->CR3 |= USART_CR3_NACK; + } + else + { + /* Disable the NACK transmission by clearing the NACK bit in the CR3 register */ + USARTx->CR3 &= (uint16_t)~((uint16_t)USART_CR3_NACK); + } +} + +/** + * @brief Enables or disables the USART’s Half Duplex communication. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param NewState: new state of the USART Communication. + * This parameter can be: ENABLE or DISABLE. + * @retval None + */ +void USART_HalfDuplexCmd(USART_TypeDef* USARTx, FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + if (NewState != DISABLE) + { + /* Enable the Half-Duplex mode by setting the HDSEL bit in the CR3 register */ + USARTx->CR3 |= USART_CR3_HDSEL; + } + else + { + /* Disable the Half-Duplex mode by clearing the HDSEL bit in the CR3 register */ + USARTx->CR3 &= (uint16_t)~((uint16_t)USART_CR3_HDSEL); + } +} + +/** + * @brief Enables or disables the USART's 8x oversampling mode. + * @param USARTx: Select the USART or the UART peripheral. + * This parameter can be one of the following values: + * USART1, USART2, USART3. + * @param NewState: new state of the USART 8x oversampling mode. + * This parameter can be: ENABLE or DISABLE. + * + * @note + * This function has to be called before calling USART_Init() + * function in order to have correct baudrate Divider value. + * @retval : None + */ +void USART_OverSampling8Cmd(USART_TypeDef* USARTx, FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + if (NewState != DISABLE) + { + /* Enable the 8x Oversampling mode by setting the OVER8 bit in the CR1 register */ + USARTx->CR1 |= USART_CR1_OVER8; + } + else + { + /* Disable the 8x Oversampling mode by clearing the OVER8 bit in the CR1 register */ + USARTx->CR1 &= (uint16_t)~((uint16_t)USART_CR1_OVER8); + } +} + +/** + * @brief Enables or disables the USART's one bit sampling methode. + * @param USARTx: Select the USART or the UART peripheral. + * This parameter can be one of the following values: + * USART1, USART2, USART3. + * @param NewState: new state of the USART one bit sampling methode. + * This parameter can be: ENABLE or DISABLE. + * @retval : None + */ +void USART_OneBitMethodCmd(USART_TypeDef* USARTx, FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + if (NewState != DISABLE) + { + /* Enable the one bit method by setting the ONEBITE bit in the CR3 register */ + USARTx->CR3 |= USART_CR3_ONEBIT; + } + else + { + /* Disable tthe one bit method by clearing the ONEBITE bit in the CR3 register */ + USARTx->CR3 &= (uint16_t)~((uint16_t)USART_CR3_ONEBIT); + } +} + +/** + * @brief Configures the USART’s IrDA interface. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param USART_IrDAMode: specifies the IrDA mode. + * This parameter can be one of the following values: + * @arg USART_IrDAMode_LowPower + * @arg USART_IrDAMode_Normal + * @retval None + */ +void USART_IrDAConfig(USART_TypeDef* USARTx, uint16_t USART_IrDAMode) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_USART_IRDA_MODE(USART_IrDAMode)); + + USARTx->CR3 &= (uint16_t)~((uint16_t)USART_CR3_IRLP); + USARTx->CR3 |= USART_IrDAMode; +} + +/** + * @brief Enables or disables the USART’s IrDA interface. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param NewState: new state of the IrDA mode. + * This parameter can be: ENABLE or DISABLE. + * @retval None + */ +void USART_IrDACmd(USART_TypeDef* USARTx, FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + if (NewState != DISABLE) + { + /* Enable the IrDA mode by setting the IREN bit in the CR3 register */ + USARTx->CR3 |= USART_CR3_IREN; + } + else + { + /* Disable the IrDA mode by clearing the IREN bit in the CR3 register */ + USARTx->CR3 &= (uint16_t)~((uint16_t)USART_CR3_IREN); + } +} + +/** + * @brief Checks whether the specified USART flag is set or not. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param USART_FLAG: specifies the flag to check. + * This parameter can be one of the following values: + * @arg USART_FLAG_CTS: CTS Change flag + * @arg USART_FLAG_LBD: LIN Break detection flag + * @arg USART_FLAG_TXE: Transmit data register empty flag + * @arg USART_FLAG_TC: Transmission Complete flag + * @arg USART_FLAG_RXNE: Receive data register not empty flag + * @arg USART_FLAG_IDLE: Idle Line detection flag + * @arg USART_FLAG_ORE: OverRun Error flag + * @arg USART_FLAG_NE: Noise Error flag + * @arg USART_FLAG_FE: Framing Error flag + * @arg USART_FLAG_PE: Parity Error flag + * @retval The new state of USART_FLAG (SET or RESET). + */ +FlagStatus USART_GetFlagStatus(USART_TypeDef* USARTx, uint16_t USART_FLAG) +{ + FlagStatus bitstatus = RESET; + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_USART_FLAG(USART_FLAG)); + + if ((USARTx->SR & USART_FLAG) != (uint16_t)RESET) + { + bitstatus = SET; + } + else + { + bitstatus = RESET; + } + return bitstatus; +} + +/** + * @brief Clears the USARTx's pending flags. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param USART_FLAG: specifies the flag to clear. + * This parameter can be any combination of the following values: + * @arg USART_FLAG_CTS: CTS Change flag. + * @arg USART_FLAG_LBD: LIN Break detection flag. + * @arg USART_FLAG_TC: Transmission Complete flag. + * @arg USART_FLAG_RXNE: Receive data register not empty flag. + * + * @note + * - PE (Parity error), FE (Framing error), NE (Noise error), ORE (OverRun + * error) and IDLE (Idle line detected) flags are cleared by software + * sequence: a read operation to USART_SR register (USART_GetFlagStatus()) + * followed by a read operation to USART_DR register (USART_ReceiveData()). + * - RXNE flag can be also cleared by a read to the USART_DR register + * (USART_ReceiveData()). + * - TC flag can be also cleared by software sequence: a read operation to + * USART_SR register (USART_GetFlagStatus()) followed by a write operation + * to USART_DR register (USART_SendData()). + * - TXE flag is cleared only by a write to the USART_DR register + * (USART_SendData()). + * @retval None + */ +void USART_ClearFlag(USART_TypeDef* USARTx, uint16_t USART_FLAG) +{ + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_USART_CLEAR_FLAG(USART_FLAG)); + + USARTx->SR = (uint16_t)~USART_FLAG; +} + +/** + * @brief Checks whether the specified USART interrupt has occurred or not. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param USART_IT: specifies the USART interrupt source to check. + * This parameter can be one of the following values: + * @arg USART_IT_CTS: CTS change interrupt + * @arg USART_IT_LBD: LIN Break detection interrupt + * @arg USART_IT_TXE: Tansmit Data Register empty interrupt + * @arg USART_IT_TC: Transmission complete interrupt + * @arg USART_IT_RXNE: Receive Data register not empty interrupt + * @arg USART_IT_IDLE: Idle line detection interrupt + * @arg USART_IT_ORE: OverRun Error interrupt + * @arg USART_IT_NE: Noise Error interrupt + * @arg USART_IT_FE: Framing Error interrupt + * @arg USART_IT_PE: Parity Error interrupt + * @retval The new state of USART_IT (SET or RESET). + */ +ITStatus USART_GetITStatus(USART_TypeDef* USARTx, uint16_t USART_IT) +{ + uint32_t bitpos = 0x00, itmask = 0x00, usartreg = 0x00; + ITStatus bitstatus = RESET; + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_USART_GET_IT(USART_IT)); + + /* Get the USART register index */ + usartreg = (((uint8_t)USART_IT) >> 0x05); + /* Get the interrupt position */ + itmask = USART_IT & IT_MASK; + itmask = (uint32_t)0x01 << itmask; + + if (usartreg == 0x01) /* The IT is in CR1 register */ + { + itmask &= USARTx->CR1; + } + else if (usartreg == 0x02) /* The IT is in CR2 register */ + { + itmask &= USARTx->CR2; + } + else /* The IT is in CR3 register */ + { + itmask &= USARTx->CR3; + } + + bitpos = USART_IT >> 0x08; + bitpos = (uint32_t)0x01 << bitpos; + bitpos &= USARTx->SR; + if ((itmask != (uint16_t)RESET)&&(bitpos != (uint16_t)RESET)) + { + bitstatus = SET; + } + else + { + bitstatus = RESET; + } + + return bitstatus; +} + +/** + * @brief Clears the USARTx’s interrupt pending bits. + * @param USARTx: Select the USART peripheral. + * This parameter can be one of the following values: + * USART1, USART2 or USART3. + * @param USART_IT: specifies the interrupt pending bit to clear. + * This parameter can be one of the following values: + * @arg USART_IT_CTS: CTS change interrupt + * @arg USART_IT_LBD: LIN Break detection interrupt + * @arg USART_IT_TC: Transmission complete interrupt. + * @arg USART_IT_RXNE: Receive Data register not empty interrupt. + * + * @note + * - PE (Parity error), FE (Framing error), NE (Noise error), ORE (OverRun + * error) and IDLE (Idle line detected) pending bits are cleared by + * software sequence: a read operation to USART_SR register + * (USART_GetITStatus()) followed by a read operation to USART_DR register + * (USART_ReceiveData()). + * - RXNE pending bit can be also cleared by a read to the USART_DR register + * (USART_ReceiveData()). + * - TC pending bit can be also cleared by software sequence: a read + * operation to USART_SR register (USART_GetITStatus()) followed by a write + * operation to USART_DR register (USART_SendData()). + * - TXE pending bit is cleared only by a write to the USART_DR register + * (USART_SendData()). + * @retval None + */ +void USART_ClearITPendingBit(USART_TypeDef* USARTx, uint16_t USART_IT) +{ + uint16_t bitpos = 0x00, itmask = 0x00; + /* Check the parameters */ + assert_param(IS_USART_ALL_PERIPH(USARTx)); + assert_param(IS_USART_CLEAR_IT(USART_IT)); + + bitpos = USART_IT >> 0x08; + itmask = ((uint16_t)0x01 << (uint16_t)bitpos); + USARTx->SR = (uint16_t)~itmask; +} + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/ diff --git a/Demo/Cortex_STM32L152_IAR/system_and_ST_code/stm32l1xx_flash.icf b/Demo/Cortex_STM32L152_IAR/system_and_ST_code/stm32l1xx_flash.icf index ebca1e63a..be00d54aa 100644 --- a/Demo/Cortex_STM32L152_IAR/system_and_ST_code/stm32l1xx_flash.icf +++ b/Demo/Cortex_STM32L152_IAR/system_and_ST_code/stm32l1xx_flash.icf @@ -9,7 +9,7 @@ define symbol __ICFEDIT_region_ROM_end__ = 0x0801FFFF; define symbol __ICFEDIT_region_RAM_start__ = 0x20000000; define symbol __ICFEDIT_region_RAM_end__ = 0x20003FFF; /*-Sizes-*/ -define symbol __ICFEDIT_size_cstack__ = 0x200; +define symbol __ICFEDIT_size_cstack__ = 0x300; define symbol __ICFEDIT_size_heap__ = 0x0; /**** End of ICF editor section. ###ICF###*/