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Alfred Gedeon
alfred gedeon
parent
a5dbc2b1de
commit
718178c68a
406 changed files with 108795 additions and 106323 deletions
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@ -29,8 +29,8 @@
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#include "task.h"
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/* The critical nesting value is initialised to a non zero value to ensure
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interrupts don't accidentally become enabled before the scheduler is started. */
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#define portINITIAL_CRITICAL_NESTING ( ( uint16_t ) 10 )
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* interrupts don't accidentally become enabled before the scheduler is started. */
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#define portINITIAL_CRITICAL_NESTING ( ( uint16_t ) 10 )
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/* Initial PSW value allocated to a newly created task.
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* 11000110
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@ -43,16 +43,16 @@ interrupts don't accidentally become enabled before the scheduler is started. */
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* |--------------------- Zero Flag set
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* ---------------------- Global Interrupt Flag set (enabled)
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*/
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#define portPSW ( 0xc6UL )
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#define portPSW ( 0xc6UL )
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/* Each task maintains a count of the critical section nesting depth. Each time
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a critical section is entered the count is incremented. Each time a critical
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section is exited the count is decremented - with interrupts only being
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re-enabled if the count is zero.
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usCriticalNesting will get set to zero when the scheduler starts, but must
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not be initialised to zero as that could cause problems during the startup
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sequence. */
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* a critical section is entered the count is incremented. Each time a critical
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* section is exited the count is decremented - with interrupts only being
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* re-enabled if the count is zero.
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*
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* usCriticalNesting will get set to zero when the scheduler starts, but must
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* not be initialised to zero as that could cause problems during the startup
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* sequence. */
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volatile uint16_t usCriticalNesting = portINITIAL_CRITICAL_NESTING;
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/*-----------------------------------------------------------*/
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@ -60,7 +60,7 @@ volatile uint16_t usCriticalNesting = portINITIAL_CRITICAL_NESTING;
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/*
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* Sets up the periodic ISR used for the RTOS tick.
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*/
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__attribute__((weak)) void vApplicationSetupTimerInterrupt( void );
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__attribute__( ( weak ) ) void vApplicationSetupTimerInterrupt( void );
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/*
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* Starts the scheduler by loading the context of the first task to run.
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@ -76,135 +76,136 @@ extern void vPortStartFirstTask( void );
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*
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* See the header file portable.h.
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*/
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StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )
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StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
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TaskFunction_t pxCode,
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void * pvParameters )
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{
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uint32_t *pulLocal;
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uint32_t * pulLocal;
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/* Stack type and pointers to the stack type are both 2 bytes. */
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/* Stack type and pointers to the stack type are both 2 bytes. */
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/* Parameters are passed in on the stack, and written using a 32bit value
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hence a space is left for the second two bytes. */
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pxTopOfStack--;
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/* Parameters are passed in on the stack, and written using a 32bit value
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* hence a space is left for the second two bytes. */
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pxTopOfStack--;
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/* Write in the parameter value. */
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pulLocal = ( uint32_t * ) pxTopOfStack;
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*pulLocal = ( StackType_t ) pvParameters;
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pxTopOfStack--;
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/* Write in the parameter value. */
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pulLocal = ( uint32_t * ) pxTopOfStack;
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*pulLocal = ( StackType_t ) pvParameters;
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pxTopOfStack--;
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/* The return address, leaving space for the first two bytes of the
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32-bit value. */
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pxTopOfStack--;
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pulLocal = ( uint32_t * ) pxTopOfStack;
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*pulLocal = ( uint32_t ) 0;
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pxTopOfStack--;
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/* The return address, leaving space for the first two bytes of the
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* 32-bit value. */
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pxTopOfStack--;
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pulLocal = ( uint32_t * ) pxTopOfStack;
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*pulLocal = ( uint32_t ) 0;
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pxTopOfStack--;
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/* The start address / PSW value is also written in as a 32bit value,
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so leave a space for the second two bytes. */
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pxTopOfStack--;
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/* The start address / PSW value is also written in as a 32bit value,
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* so leave a space for the second two bytes. */
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pxTopOfStack--;
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/* Task function start address combined with the PSW. */
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pulLocal = ( uint32_t * ) pxTopOfStack;
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*pulLocal = ( ( ( uint32_t ) pxCode ) | ( portPSW << 24UL ) );
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pxTopOfStack--;
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/* Task function start address combined with the PSW. */
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pulLocal = ( uint32_t * ) pxTopOfStack;
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*pulLocal = ( ( ( uint32_t ) pxCode ) | ( portPSW << 24UL ) );
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pxTopOfStack--;
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/* An initial value for the AX register. */
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*pxTopOfStack = ( StackType_t ) 0x1111;
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pxTopOfStack--;
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/* An initial value for the AX register. */
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*pxTopOfStack = ( StackType_t ) 0x1111;
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pxTopOfStack--;
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/* An initial value for the HL register. */
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*pxTopOfStack = ( StackType_t ) 0x2222;
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pxTopOfStack--;
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/* An initial value for the HL register. */
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*pxTopOfStack = ( StackType_t ) 0x2222;
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pxTopOfStack--;
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/* CS and ES registers. */
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*pxTopOfStack = ( StackType_t ) 0x0F00;
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pxTopOfStack--;
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/* CS and ES registers. */
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*pxTopOfStack = ( StackType_t ) 0x0F00;
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pxTopOfStack--;
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/* The remaining general purpose registers bank 0 (DE and BC) and the other
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two register banks...register bank 3 is dedicated for use by interrupts so
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is not saved as part of the task context. */
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pxTopOfStack -= 10;
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/* The remaining general purpose registers bank 0 (DE and BC) and the other
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* two register banks...register bank 3 is dedicated for use by interrupts so
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* is not saved as part of the task context. */
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pxTopOfStack -= 10;
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/* Finally the critical section nesting count is set to zero when the task
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first starts. */
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*pxTopOfStack = ( StackType_t ) portNO_CRITICAL_SECTION_NESTING;
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/* Finally the critical section nesting count is set to zero when the task
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* first starts. */
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*pxTopOfStack = ( StackType_t ) portNO_CRITICAL_SECTION_NESTING;
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/* Return a pointer to the top of the stack that has beene generated so it
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can be stored in the task control block for the task. */
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return pxTopOfStack;
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/* Return a pointer to the top of the stack that has beene generated so it
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* can be stored in the task control block for the task. */
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return pxTopOfStack;
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}
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/*-----------------------------------------------------------*/
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portBASE_TYPE xPortStartScheduler( void )
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{
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/* Setup the hardware to generate the tick. Interrupts are disabled when
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this function is called. */
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vApplicationSetupTimerInterrupt();
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/* Setup the hardware to generate the tick. Interrupts are disabled when
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* this function is called. */
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vApplicationSetupTimerInterrupt();
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/* Restore the context of the first task that is going to run. */
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vPortStartFirstTask();
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/* Restore the context of the first task that is going to run. */
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vPortStartFirstTask();
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/* Execution should not reach here as the tasks are now running! */
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return pdTRUE;
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/* Execution should not reach here as the tasks are now running! */
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return pdTRUE;
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}
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/*-----------------------------------------------------------*/
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void vPortEndScheduler( void )
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{
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/* It is unlikely that the RL78 port will get stopped. */
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/* It is unlikely that the RL78 port will get stopped. */
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}
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/*-----------------------------------------------------------*/
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__attribute__((weak)) void vApplicationSetupTimerInterrupt( void )
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__attribute__( ( weak ) ) void vApplicationSetupTimerInterrupt( void )
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{
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const uint16_t usClockHz = 15000UL; /* Internal clock. */
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const uint16_t usCompareMatch = ( usClockHz / configTICK_RATE_HZ ) + 1UL;
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const uint16_t usClockHz = 15000UL; /* Internal clock. */
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const uint16_t usCompareMatch = ( usClockHz / configTICK_RATE_HZ ) + 1UL;
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/* Use the internal 15K clock. */
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OSMC = ( unsigned char ) 0x16;
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/* Use the internal 15K clock. */
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OSMC = ( unsigned char ) 0x16;
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#ifdef RTCEN
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{
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/* Supply the interval timer clock. */
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RTCEN = ( unsigned char ) 1U;
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#ifdef RTCEN
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{
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/* Supply the interval timer clock. */
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RTCEN = ( unsigned char ) 1U;
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/* Disable INTIT interrupt. */
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ITMK = ( unsigned char ) 1;
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/* Disable INTIT interrupt. */
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ITMK = ( unsigned char ) 1;
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/* Disable ITMC operation. */
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ITMC = ( unsigned char ) 0x0000;
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/* Disable ITMC operation. */
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ITMC = ( unsigned char ) 0x0000;
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/* Clear INIT interrupt. */
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ITIF = ( unsigned char ) 0;
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/* Clear INIT interrupt. */
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ITIF = ( unsigned char ) 0;
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/* Set interval and enable interrupt operation. */
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ITMC = usCompareMatch | 0x8000U;
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/* Set interval and enable interrupt operation. */
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ITMC = usCompareMatch | 0x8000U;
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/* Enable INTIT interrupt. */
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ITMK = ( unsigned char ) 0;
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}
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#endif
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/* Enable INTIT interrupt. */
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ITMK = ( unsigned char ) 0;
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}
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#endif /* ifdef RTCEN */
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#ifdef TMKAEN
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{
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/* Supply the interval timer clock. */
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TMKAEN = ( unsigned char ) 1U;
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#ifdef TMKAEN
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{
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/* Supply the interval timer clock. */
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TMKAEN = ( unsigned char ) 1U;
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/* Disable INTIT interrupt. */
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TMKAMK = ( unsigned char ) 1;
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/* Disable INTIT interrupt. */
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TMKAMK = ( unsigned char ) 1;
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/* Disable ITMC operation. */
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ITMC = ( unsigned char ) 0x0000;
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/* Disable ITMC operation. */
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ITMC = ( unsigned char ) 0x0000;
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/* Clear INIT interrupt. */
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TMKAIF = ( unsigned char ) 0;
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/* Clear INIT interrupt. */
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TMKAIF = ( unsigned char ) 0;
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/* Set interval and enable interrupt operation. */
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ITMC = usCompareMatch | 0x8000U;
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/* Set interval and enable interrupt operation. */
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ITMC = usCompareMatch | 0x8000U;
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/* Enable INTIT interrupt. */
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TMKAMK = ( unsigned char ) 0;
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}
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#endif
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/* Enable INTIT interrupt. */
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TMKAMK = ( unsigned char ) 0;
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}
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#endif /* ifdef TMKAEN */
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}
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/*-----------------------------------------------------------*/
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