Hello,
I am using embos for a M32c83 from renesas and the IAR Compiler. If i run the Demo with the two tasks(2 blinking LED's) or if I create two own little tasks, the application only run approx 1 minute. If I enlarge the size of the task stack, it runs a few time longer. I think the task stack has an overflow.
How can I certain detect it, and the main problem how can I prevent an overflow? Maybe special settings for the IAR?

Hello Till,
thank you for your fast reply on my question.
I am using a demo board from Glyn for my M32C83 with actually only 2 serial ports. One port I need for the debugger KD30 and one port I am using for the communication with my PC so I have no possibility to use embOSView.
My code is rather simple. I used the segger demo an enhanced it with a uart communication in one task.
Here's my demo:
/**********************************************************
* SEGGER MICROCONTROLLER SYSTEME GmbH
* Solutions for real time microcontroller applications
***********************************************************
File : Main.c
Purpose : Skeleton program for embOS
--------- END-OF-HEADER ---------------------------------*/

#include "RTOS.H"
#include "comp.h"
#include "s83_144.h"

void vPc_comini(void);
void PutUartChar(unsigned char);
void PutUartString (unsigned char*);
void PutUartBmp (const unsigned char*);
unsigned char GetChar(void);

OS_STACKPTR int Stack0[512], Stack1[512]; /* Task stacks */
OS_TASK TCB0, TCB1; /* Task-control-blocks */

unsigned char str[5] = {0x61,0x62,0x63,0x64};

void Task0(void) {

PutUartChar('a');
PutUartString(str);

while (1) {
BCHA(LED1); // toggles LED1
OS_Delay(100);
}
}

void Task1(void) {
while (1) {
BCHA(LED2);
OS_Delay (2000);
}
}

void InitMyHardware (void)
{
BSET(LED1dir);
BSET(LED2dir);
vPc_comini();
PC_UART(te_u, c1) = 1; // Enable UART0 transmit
PC_UART(re_u, c1) = 1; // Enable UART0 receive

}

/**********************************************************
*
* main
*
**********************************************************/

int main(void) {
OS_IncDI(); /* Initially disable interrupts */
OS_InitKern(); /* initialize OS */
OS_InitHW(); /* initialize Hardware for OS */
/* You need to create at least one task here ! */
InitMyHardware ();
OS_CREATETASK(&TCB0, "HP Task", Task0, 100, Stack0);
OS_CREATETASK(&TCB1, "LP Task", Task1, 50, Stack1);
OS_Start(); /* Start multitasking */
return 0;
}