Hi friends,
I am developing small application with ucos-ii v2.86 and OLIMEX STRE-912 board with IAR EW-ARM v5.30 . In code when OSTimeDlyHMSM() function is encountered the task is halted permanently and execution freezes.
It works with small delays e.g OSTimeDlyHMSM(0, 0, 0, 5 ) but not with normal ones e.g OSTimeDlyHMSM(0, 0, 1, 30 );
OS timer tick is set to 100 ticks per second.
Program works properly if OSTimeDlyHMSM() is removed.
Please help me to solve this problem :-[ :-[
the application code is as under,
/******************************************************************************************************
uC/OS-II
Filename : app.c
Version : V1.00
********************************************************************************************************/
#include <includes.h>
/*
*********************************************************************************************************
* LOCAL DEFINES
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* LOCAL DATA TYPES
*********************************************************************************************************
*/
typedef struct graphics
{
unsigned char x1;
unsigned char y1;
unsigned char x2;
unsigned char y2;
unsigned char color;
}lcdgraphics;
//struct graphics lcdgraphics;
/*
*********************************************************************************************************
* VARIABLES
*********************************************************************************************************
*/
OS_STK Task_Serial_TX_STK[Task_COM_STK];
OS_STK TASK_LCDD_STK[Task_LCD_STK];
OS_EVENT *mb;
OS_EVENT *clr;
OS_EVENT *lcdq;
void *lcdptr[4];
/*
*********************************************************************************************************
* FUNCTION PROTOTYPES
*********************************************************************************************************
*/
void Task_Serial_TX( void *pdata );
void Task_LCD( void *pdata );
/*
*********************************************************************************************************
* main()
*
* Description : This is the standard entry point for C code. It is assumed that your code will call
* main() once you have performed all necessary initialization.
*
* Argument(s) : none.
*
* Return(s) : none.
*
* Caller(s) : This is the standard entry point for C code.
*
* Note(s) : none.
*********************************************************************************************************
*/
void main ( void )
{
BSP_IntDisAll(); /* Disable all interrupts until we are ready to accept them */
BSP_Init(); /* Initialize system's BSP */
OSInit(); /* Initialize "uC/OS-II, The Real-Time Kernel" */
mb = OSMboxCreate( (void *)0 );
clr = OSMboxCreate( (void *)0 );
lcdq = OSQCreate( &lcdptr[0], 4);
OSTaskCreate( Task_Serial_TX, ( void * )0, &Task_Serial_TX_STK[Task_COM_STK -1], Task_COM_PRIO ); // task prio = 2
OSTaskCreate( Task_LCD, ( void *)0, &TASK_LCDD_STK[Task_LCD_STK-1], Task_LCD_PRIO ); // task prio = 1
OSStart(); /* Start multitasking (i.e. give control to uC/OS-II) */
}
/*********************************************************************************************************
* Task_Serial_TX()
*
* Description :
*
*
* Argument(s) : none.
*
* Return(s) : none.
*
* Caller(s) :
*
* Note(s) : none
*********************************************************************************************************/
void Task_Serial_TX ( void *pdata )
{
unsigned char err;
lcdgraphics rectangle;
rectangle.color = 0;
rectangle.x2 = 0;
rectangle.y2 = 0;
rectangle.x1 = 0;
rectangle.y1 = 0;
pdata = pdata;
while( 1 )
{
rectangle.x1 += 2;
rectangle.y1 = rectangle.x1;
if( rectangle.x1 > 130 )
{
rectangle.x1 = 0 ;
LCDClearScreen();
if( rectangle.color++ > 10 )
{ rectangle.color = 0; }
}
if( rectangle.y2 > 130)
{ rectangle.y2 = 0;}
UartSendStr( " PASSED " ); // sends data to uart
OSQPost( lcdq, (void *)&rectangle);
}
}
/*********************************************************************************************************
* Task_LCD()
*
* Description :
* .
*
* Argument(s) : none.
*
* Return(s) : none.
*
* Caller(s) :
*
* Note(s) : none
*********************************************************************************************************/
void Task_LCD ( void *pdata )
{
unsigned char err;
int TempColor[11] =
{ WHITE, BLACK, RED, GREEN, BLUE, CYAN, MAGENTA,
YELLOW, BROWN, ORANGE, PINK };
lcdgraphics *rectangle;
pdata = pdata;
while( 1 )
{
rectangle = (lcdgraphics *)OSQPend( lcdq, 0, &err );
OSTimeDlyHMSM(0, 0, 0, 50);
LCDSetRect(rectangle->x1, rectangle->y1,
rectangle->x2, rectangle->y2,
FILL, TempColor[ rectangle->color] );
}
}
// WARM REGARDS
// YOUR HELP WILL BE GREATLY APPRECIATED