Debug mode is not working in Segger Embedded Studio?

[vishal]

We are using nRf52840 chip with Nordic SDK 15.0 version using SES IDE. When we use debug mode in build configurations program is not working or not debugging got error as a unknown function and stop running in below function:

void idle_state_handle(void) {
  if (NRF_LOG_PROCESS() == false) {
    nrf_pwr_mgmt_run();
  }
}

But when we select release mode the program is working fine. But we want to debug our code with break points, so will you please give me solution why program is not working in debug mode. Is any other setting that we need to configure in segger embedded studio for debugging. 

Thanks in advanced.......

[awneil]

vishal said:

got error as a unknown function

Please explain that.

What, exactly, did the message say? copy & paste the full text.

Where, exactly, did you get it - is it a build error, or while debugging?

[vishal]

The segger IDE is not showing proper error message the following screen got and stop application running. Is not showing any message or something other:

We have selected debug config from here as given in following image:

We are not getting any built error or any other error also, our application is directly stop running and said unknown function as described in first image in debug mode.

Thanks...

[vishal]

Thanks for replay...

I have disabled all breakpoints and also disabled HardFault break point as attached following image:

But my application is not actually running not BLE adverting, Not showing all LOGS.

Will you please help me or provide step for How i implement   HardFault handling library  in my application to determine if the fault was indeed caused by NRF_LOG_PROCESS.

Thanks...!!

[Vidar Berg]

You need to halt the CPU to see where the program is stuck. It's probably going to be in the hardfault handler. 

vishal said:

Will you please help me or provide step for How i implement   HardFault handling library  in my application to determine if the fault was indeed caused by NRF_LOG_PROCESS.

Did you include hardfault_implementation.c and hardfault_handler_gcc.c from \components\libraries\hardfault in your project? You also need to enabled the hardfault handler in sdk_config.h

[vishal]

When i added this libraries into my project and enabled hardfault handler in sdk_config.h the got error like

<error> hardfault: HARD FAULT at 0x000273AA
<error> hardfault:   R0:  0x00140101  R1:  0x00000000  R2:  0x00000001  R3:  0x02FE2B00
000000
ult).
<error> hardfault: Bus Fault Address: 0x02FE2B04

Will you please tell me why this error coming where is exactly issue..

 Thanks.. 

[Vidar Berg]

Sorry for the late response. Did you manage to fix this? If not, the log indicates that the fault occurred at address 0x273AA so you should try lookup this address in the "disassembly" view to find the code section that leads to the hardfault. 

[vishal]

Sorry for late response,

We were busy to implement other functionality and used segger setting in release mode. But now we need to resolve this issue still getting.

But currently ERROR got as per below:

<error> app: ERROR 3735928559 [Unknown error code] at D:/Permanent_monitoring_system/nRF5_SDK_15.0.0_a53641a/modules/nrfx/hal/nrf_gpio.h:455
PC at: 0x00032ECB
<error> app: End of error report

When i go to line no 455 in nrf_gpio.h the saw   NRFX_ASSERT(*p_pin < NUMBER_OF_PINS);

Why my program stuck here in debug mode.

Will please provide best solution to resolve this debug issue.

Looking forward your response..!!!

[awneil]

vishal said:

i go to line no 455 in nrf_gpio.h the saw   NRFX_ASSERT(*p_pin < NUMBER_OF_PINS);

So did you check that the value of *p_pin is less than the value NUMBER_OF_PINS ?

[Vidar Berg]

The error indicates that you have passed an invalid pin number to one of the nrf_gpio_* functions, but I can't tell which one, unfortunately. Can you check what the value of "pin" is, then go over your code to see where this pin number may be used? 

[vishal]

Yes I have checked and the value of *p_pin is 23 which is less than 48(NUMBER_OF_PINS).

But i have defined 23 pin correctly but still getting this ERROR.

Thanks

[Vidar Berg]

You will not get this error if *p_pin == 23. Assume the GPIO API is called several times during program execution, you need to capture the *pin_value when you get the error.  

[vishal]

Hello Vidar and awneil,

You are right by mistake in my pca10056.h file LED_2 pin was defined invalid like this

#define LED_2          NRF_GPIO_PIN_MAP(1,17) by corrected their port number (0,17) then debug mode is working well.

Now we are able to run our application in debug mode.

Thanks for your great supporting.....!!!