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Continue to develop the MSP430X IAR demo project - still a work in progress.

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This commit is contained in:
Richard Barry 2010-12-31 14:51:15 +00:00
parent df4e7ceba0
commit ae6380f70b
8 changed files with 522 additions and 32 deletions
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137
Demo/MSP430X_MSP430F5438_IAR/main.c
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@ -50,15 +50,23 @@
http://www.OpenRTOS.com - Commercial support, development, porting,
licensing and training services.
*/
/* Standard includes. */
#include <stdio.h>
/* FreeRTOS includes. */
#include "FreeRTOS.h"
#include "task.h"
#include "queue.h"
/* Hardware includes. */
#include "msp430.h"
#include "hal_MSP-EXP430F5438.h"
/* Standard demo includes. */
#include "ParTest.h"
#include "comtest2.h"
/* Codes sent within messages to the LCD task so the LCD task can interpret
exactly what the message it just received was. These are sent in the
cMessageID member of the message structure (defined below). */
@ -67,7 +75,7 @@ cMessageID member of the message structure (defined below). */
#define mainMESSAGE_STATUS ( 3 )
/* When the cMessageID member of the message sent to the LCD task is
mainMESSAGE_STATUS then these definitions are sent in the cMessageValue member
mainMESSAGE_STATUS then these definitions are sent in the ulMessageValue member
of the same message and indicate what the status actually is. */
#define mainERROR_DYNAMIC_TASKS ( pdPASS + 1 )
#define mainERROR_COM_TEST ( pdPASS + 2 )
@ -79,6 +87,13 @@ to send messages from tasks and interrupts the the LCD task. */
#define mainQUEUE_LENGTH ( 5 )
#define mainLCD_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 )
#define mainCOM_TEST_PRIORITY ( tskIDLE_PRIORITY + 2 )
/* The LED used by the comtest tasks. See the comtest.c file for more
information. In this case it is deliberately out of range as there are only
two LEDs, and they are both already in use. */
#define mainCOM_TEST_LED ( 3 )
/*-----------------------------------------------------------*/
@ -92,6 +107,7 @@ static void prvGenerateStatusMessage( char *pcBuffer, long lStatusValue );
/*-----------------------------------------------------------*/
volatile unsigned short usRegTest1Counter = 0, usRegTest2Counter = 0;
volatile unsigned long ulStatsOverflowCount = 0;
/* The handle of the queue used to send messages from tasks and interrupts to
the LCD task. */
@ -102,31 +118,34 @@ task. */
typedef struct
{
char cMessageID; /* << States what the message is. */
char cMessageValue; /* << States the message value (can be an integer, string pointer, etc. depending on the value of cMessageID. */
unsigned long ulMessageValue; /* << States the message value (can be an integer, string pointer, etc. depending on the value of cMessageID. */
} xQueueMessage;
/*-----------------------------------------------------------*/
void main( void )
{
prvSetupHardware();
/* Create the queue used by tasks and interrupts to send strings to the LCD
task. */
xLCDQueue = xQueueCreate( mainQUEUE_LENGTH, sizeof( xQueueMessage ) );
if( xLCDQueue != NULL )
{
/* Add the created queue to the queue registry so it can be viewed in
the IAR FreeRTOS state viewer plug-in. */
vQueueAddToRegistry( xLCDQueue, "LCDQueue" );
/* Create the standard demo tasks. */
vAltStartComTestTasks( mainCOM_TEST_PRIORITY, 9600, mainCOM_TEST_LED );
/* Create the terminal IO and button poll tasks, as described at the top
of this file. */
xTaskCreate( prvTerminalIOTask, ( signed char * ) "IO", configMINIMAL_STACK_SIZE, NULL, mainLCD_TASK_PRIORITY, NULL );
xTaskCreate( prvButtonPollTask, ( signed char * ) "ButPoll", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );
xTaskCreate( prvTerminalIOTask, ( signed char * ) "IO", configMINIMAL_STACK_SIZE * 2, NULL, mainLCD_TASK_PRIORITY, NULL );
xTaskCreate( prvButtonPollTask, ( signed char * ) "BPoll", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );
xTaskCreate( vRegTest1Task, "RegTest1", configMINIMAL_STACK_SIZE, NULL, 0, NULL );
xTaskCreate( vRegTest2Task, "RegTest2", configMINIMAL_STACK_SIZE, NULL, 0, NULL );
xTaskCreate( vRegTest1Task, "Reg1", configMINIMAL_STACK_SIZE, NULL, 0, NULL );
xTaskCreate( vRegTest2Task, "Reg2", configMINIMAL_STACK_SIZE, NULL, 0, NULL );
vTaskStartScheduler();
}
for( ;; );
@ -169,7 +188,7 @@ static char cBuffer[ 512 ];
informed this task that the up
button on the joystick input has
been pressed or released. */
sprintf( cBuffer, "Button up = %d", xReceivedMessage.cMessageValue );
sprintf( cBuffer, "Button up = %d", ( int ) xReceivedMessage.ulMessageValue );
break;
case mainMESSAGE_BUTTON_SEL : /* The select button interrupt
@ -180,7 +199,8 @@ static char cBuffer[ 512 ];
the terminal IO window in the IAR
embedded workbench. */
printf( "\nTask\t Abs Time\t %%Time\n*****************************************" );
// vTaskGetRunTimeStats( ( signed char * ) cBuffer );
fflush( stdout );
vTaskGetRunTimeStats( ( signed char * ) cBuffer );
// printf( cBuffer );
break;
@ -189,7 +209,7 @@ static char cBuffer[ 512 ];
task of the system status.
Generate a string in accordance
with the status value. */
prvGenerateStatusMessage( cBuffer, xReceivedMessage.cMessageValue );
prvGenerateStatusMessage( cBuffer, xReceivedMessage.ulMessageValue );
break;
default : sprintf( cBuffer, "Unknown message" );
@ -214,7 +234,7 @@ static void prvGenerateStatusMessage( char *pcBuffer, long lStatusValue )
break;
case mainERROR_DYNAMIC_TASKS : sprintf( pcBuffer, "Error: Dynamic tasks" );
break;
case mainERROR_COM_TEST : sprintf( pcBuffer, "Err: loop connected?" ); /* Error in COM test - is the Loopback connector connected? */
case mainERROR_COM_TEST : sprintf( pcBuffer, "Err: COM test" ); /* Error in COM test - is the Loopback connector connected? */
break;
case mainERROR_GEN_QUEUE_TEST : sprintf( pcBuffer, "Error: Gen Q test" );
break;
@ -247,7 +267,7 @@ xQueueMessage xMessage;
{
/* The state has changed, send a message to the LCD task. */
xMessage.cMessageID = mainMESSAGE_BUTTON_UP;
xMessage.cMessageValue = ucState;
xMessage.ulMessageValue = ( unsigned long ) ucState;
ucLastState = ucState;
xQueueSend( xLCDQueue, &xMessage, portMAX_DELAY );
}
@ -261,11 +281,13 @@ xQueueMessage xMessage;
static void prvSetupHardware( void )
{
unsigned long ulCPU_Clock_KHz = ( configCPU_CLOCK_HZ / 1000UL );
halBoardInit();
halButtonsInit( BUTTON_ALL );
halButtonsInterruptEnable( BUTTON_SELECT );
LFXT_Start (XT1DRIVE_0);
Init_FLL_Settle( 18000, 488 );
LFXT_Start( XT1DRIVE_0 );
Init_FLL_Settle( ( unsigned short ) ulCPU_Clock_KHz, 488 );
}
/*-----------------------------------------------------------*/
@ -276,7 +298,7 @@ const unsigned short usACLK_Frequency_Hz = 32768;
/* Ensure the timer is stopped. */
TA0CTL = 0;
/* Run the timer of the ACLK. */
/* Run the timer from the ACLK. */
TA0CTL = TASSEL_1;
/* Clear everything to start with. */
@ -344,26 +366,30 @@ static xQueueMessage xStatusMessage = { mainMESSAGE_STATUS, pdPASS };
xStatusMessage.lMessageValue = mainERROR_DYNAMIC_TASKS;
}
if( xAreComTestTasksStillRunning() != pdPASS )
{
xStatusMessage.lMessageValue = mainERROR_COM_TEST;
}
if( xAreGenericQueueTasksStillRunning() != pdPASS )
{
xStatusMessage.lMessageValue = mainERROR_GEN_QUEUE_TEST;
}
#else
/* See if the standard demo tasks are executing as expected, changing
the message that is sent to the LCD task from PASS to an error code if
any tasks set reports an error. */
if( xAreComTestTasksStillRunning() != pdPASS )
{
xStatusMessage.ulMessageValue = mainERROR_COM_TEST;
}
/* Check the reg test tasks are still cycling. They will stop incrementing
their loop counters if they encounter an error. */
if( usRegTest1Counter == usLastRegTest1Counter )
{
xStatusMessage.cMessageValue = mainERROR_REG_TEST;
xStatusMessage.ulMessageValue = mainERROR_REG_TEST;
}
if( usRegTest2Counter == usLastRegTest2Counter )
{
xStatusMessage.cMessageValue = mainERROR_REG_TEST;
xStatusMessage.ulMessageValue = mainERROR_REG_TEST;
}
usLastRegTest1Counter = usRegTest1Counter;
@ -391,5 +417,70 @@ static xQueueMessage xStatusMessage = { mainMESSAGE_STATUS, pdPASS };
}
}
}
/*-----------------------------------------------------------*/
#pragma vector=PORT2_VECTOR
__interrupt static void prvSelectButtonInterrupt(void)
{
/* Define the message sent to the LCD task from this interrupt. */
static const xQueueMessage xMessage = { mainMESSAGE_BUTTON_SEL, ( unsigned long ) "Select Interrupt!" };
portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
/* This is the interrupt handler for the joystick select button input.
The button has been pushed, write a message to the LCD via the LCD task. */
xQueueSendFromISR( xLCDQueue, &xMessage, &xHigherPriorityTaskWoken );
P2IFG = 0;
/* If writing to xLCDQueue caused a task to unblock, and the unblocked task
has a priority equal to or above the task that this interrupt interrupted,
then lHigherPriorityTaskWoken will have been set to pdTRUE internally within
xQueuesendFromISR(), and portEND_SWITCHING_ISR() will ensure that this
interrupt returns directly to the higher priority unblocked task. */
portYIELD_FROM_ISR( xHigherPriorityTaskWoken );
}
/*-----------------------------------------------------------*/
void vConfigureTimerForRunTimeStats( void )
{
/* Ensure the timer is stopped. */
TA1CTL = 0;
/* Run the timer from the ACLK/4. */
TA1CTL = TASSEL_1 | ID__4;
/* Clear everything to start with. */
TA1CTL |= TACLR;
/* Enable the interrupts. */
TA1CCTL0 = CCIE;
/* Start up clean. */
TA1CTL |= TACLR;
/* Continuous mode. */
TA1CTL |= MC__CONTINOUS;
}
/*-----------------------------------------------------------*/
#pragma vector=TIMER1_A0_VECTOR
static __interrupt void prvRunTimeStatsOverflowISR( void )
{
ulStatsOverflowCount++;
}
/*-----------------------------------------------------------*/
inline unsigned long ulGetRunTimeStatsTime( void )
{
unsigned long ulReturn;
TA1CTL &= ~MC__CONTINOUS;
ulReturn = ( ( ulStatsOverflowCount << 16UL ) | ( unsigned long ) TA1R );
TA1CTL |= MC__CONTINOUS;
return ulReturn;
}