I am trying to use freetos on mega128. But the application is not working as it should. I have declared two tasks while toggle buzzer and led at an interval of 1 sec. But only led are toggling ( only the task declared in last works). If I use vTaskDelay or vTaskDelayUntil then the system hangs.

Changes I have made :-
1) In make file change from mega323 to mega128

Mega128 is running on 8MHz internal RC osc.

I would say it sounds like the tick interrupt was not firing, but you say the LED toggle is working? Is the period of the LED toggle correct?

Does a 128 and 323 have the same timers?

What can be the case that vTaskDelay or vTaskDelayUntil causes system to hang.

#define configUSE_PREEMPTION1
#define configUSE_IDLE_HOOK0
#define configUSE_TICK_HOOK0
#define configCPU_CLOCK_HZ( ( unsigned portLONG ) 8000000 )
#define configTICK_RATE_HZ( ( portTickType ) 1000 )
#define configMAX_PRIORITIES( ( unsigned portBASE_TYPE ) 4 )
#define configMINIMAL_STACK_SIZE( ( unsigned portSHORT ) 85 )
#define configTOTAL_HEAP_SIZE( (size_t ) ( 2500 ) )
#define configMAX_TASK_NAME_LEN( 8 )
#define configUSE_TRACE_FACILITY0
#define configUSE_16_BIT_TICKS1
#define configIDLE_SHOULD_YIELD1

these are the settings used for avr mega128

main.c:94: warning: pointer targets in passing argument 2 of 'xTaskCreate' diffe
r in signedness
main.c:95: warning: pointer targets in passing argument 2 of 'xTaskCreate' diffe
r in signedness

these errors are coming while compiling