Hi,
I am using FreeRTOS on TMS570 provided by Halcogen 04.07.01 version.
I would like to use "portCONFIGURE_TIMER_FOR_RUN_TIME_STATS" to check the execution time of the task its active state time etc.
Can you please guide me to define "portCONFIGURE_TIMER_FOR_RUN_TIME_STATS" It will be great if you provide a simple example project.
Regards,
Kishor
Hi
portCONFIGURE_TIMER_FOR_RUN_TIME_STATS is not enabled in the HAL generated code. TMS570 has 4 RTI compares, and the RTI compare0 is used as the RTOS TICK timer.
You need to setup another timer to measure the task execution time. This timer should run at least 10x faster than the RTOS Tick timer. In the HAL example code, the tick rate is 1 Khz which is defined in freeRTOS.h:
This means the runtime timer shall run at least with 10 kHz. The RTI module configuration GUI is hidden in HAL freeRTOS example. You have to configure the RTI Compare 1 manually. I don't have ready example now.
Hi Kishor,
You need to configure FreeRTOS with the following macro set to 1 to perform runtime analysis:
Additionally the following two macros need to be provided:
portCONFIGURE_TIMER_FOR_RUN_TIME_STATS() portGET_RUN_TIME_COUNTER_VALUE()
Which are used by the freeRTOS to configure the runtime counter timer and to get the timer value. For example:
/* USER CODE BEGIN (1) */
extern void RTOS_AppConfigureTimerForRuntimeStats(void);
#define portCONFIGURE_TIMER_FOR_RUN_TIME_STATS() RTOS_AppConfigureTimerForRuntimeStats()
extern uint32_t RTOS_AppGetRuntimeCounterValueFromISR(void);
#define portGET_RUN_TIME_COUNTER_VALUE() RTOS_AppGetRuntimeCounterValueFromISR()
/* USER CODE END */
And define those two functions in sys_main():
static uint32_t RTOS_RunTimeCounter; /* runtime counter, used for configGENERATE_RUNTIME_STATS */
void RTOS_AppConfigureTimerForRuntimeStats(void)
{
RTOS_RunTimeCounter = 0;
}
uint32_t RTOS_AppGetRuntimeCounterValueFromISR(void)
{
return RTOS_RunTimeCounter;
}
vPortRTOSRunTimeISR needs to be added to VIM table
I also suggest you use #PROGMA INTERRUPT for the ISR in your application. It instructs the compiler to generate code for interrupt functions (registers saving and restoring).
#pragma CODE_STATE(vPortRTOSRunTimeISR, 32)
#pragma INTERRUPT(vPortRTOSRunTimeISR, IRQ)
void vPortRTOSRunTimeISR(void) {
/* Clear interrupt flag.*/
//rtiREG1->INTFLAG = 2U;
*((volatile uint32_t *) 0xFFFFFC88)) = 2U;
RTOS_RunTimeCounter++; /* increment runtime counter */
}
Hi Kishor,
A Data Abort Exception is a response of an invalid data access. If the exception is confirmed to be a Data Abort, as the first step, check the value of the Data Fault Status Register (DFSR) of the Cortex-R CPU. Please find the value of the status registers:
Can you please help me to identify the exact issue and its solution?
Regards,
Kishor
Is it correct? datasheet says write in privilege mode only.
How to use this privilege mode?
void vPortRTOSRunTimeISR(void)
{
*((volatile uint32_t *) 0xFFFFFC88) = 2U;
RTOS_RunTimeCounter++;
}
Regards,
Kishor
The moment below channel 3 interrupt disabled project executes fine but not not measure task timing.
Thanks and Regards,
Kishor
Hi Kishor,
I asked you add the ISR name to the VIM vector table manually, so you don't have to check RTI compare1:
Checking this one will add the ISR (vPortRTOSRunTimeISR) to VIM vector table in HL_sys_vim.c:
You can use either way.
I didn't find the stateviewer from the download center. I think it was removed from the download center:
I agree there is no Eclipse stateviewer download link on the download center.
However there is Eclipse Stateviewer Application Guide which is a link to a PDF document which gives the steps for how to use the Eclipse "Install New Software" option to install the Stateviewer.
Edit: You need to create an account with WITTENSTEIN and be logged in in order for the above link to work.
With CCS 11.2 under Linux was able to follow the steps and get StateViewer installed, and the following shows up from Help -> About Code Composer Studio -> Installation Details -> WHIS StateViewer Properties:
Next step is try using StateViewer with a Hercules FreeRTOS project,
I observed the " vPortRTOSRunTimeISR" ISR is executed couple of times but after that the code gets stuck at dataEntry.
The problem is the lack of the INTERRUPT and CODE_STATE pragmas, which means the vPortRTOSRunTimeISR function isn't defined as an interrupt handler. With the pragmas missing I can repeat the failure of the program ending up in an abort after the interrupt is executed several time.
I.e. try changing your code to:
#pragma CODE_STATE(vPortRTOSRunTimeISR, 32)
#pragma INTERRUPT(vPortRTOSRunTimeISR, IRQ)
void vPortRTOSRunTimeISR(void)
{
/* Clear interrupt flag.*/
//rtiREG1->INTFLAG = 2U;
*((volatile uint32_t *) 0xFFFFFC88) = 2U;
RTOS_RunTimeCounter++; /* increment runtime counter */
}
With that I was able to get the example running. Also, after having installed StateViewer into CCS 11.2 was also able to use the Task Table to display the Runtime information:
The above was based upon the HALCoGen example_freeRTOSBlinky.c which just uses a task to toggle a LED, so a low CPU load in the task.