control stuck in hardfault

[nagaraj]

Hi,

   We are using nrf51822 QFAAH00 with SDK 110 v8.1.0 in our project, the application will hangs or not work when control stuck at address 0x6b0 (sometimes at 0x640) programmer in debug mode, when we check the call Stack it list with  NRF_POWER_RAMONx_RAMxON_ONMODE_Msk + 0x6ad, "NRF_POWER_RAMONx_RAMxON_ONMODE_Msk " what this indicates? , CSTACK contents are zero, what is cause for this.

added following screenshot images CSTACK,Registers content after Application hang.

 

Thanks,

Nagaraj

[FormerMember]

First, which optimization level do you use for the code? For proper debugging using the callstack, the optimization level has to be set to '0'.

 

Looking at the register values:

IPSR Exception number = 0x03 : The interrupt is a hardfault

LR = 0xFFFFFFF1   --> the hardfault comes from an interrupt

PC = SP + 0x18 = 0x20002990 : address of the instruction that hardfaults. That instruction can be found in the .map file generated by the project. Which instruction is causing the hardfault?

PSP: What is its value?

 

 

[nagaraj]

Hi,

  We Change SDK 110 v8.1.0  to SDK v10.0.0 with softdevice 8.0.0,  here also facing same issue application hangs in call stack   NRF_POWER_RAMONx_RAMxON_ONMODE_Msk + 0x6ad, and control stuck in lower address 0x6b4,

even i try to set Optimization level  to none but result same.

This is happening when no central Device connected to nrf51 module.

PSP:0xFFFFFFFC

Thanks,

NAGARAJ

[FormerMember]

Thanks!

Could you use arm-none-eabi-addr2line.exe to find the line in the application code that results in the hardfault?

It should be used the following way:

arm-none-eabi-addr2line -e yourapplication.elf address 

or

arm-none-eabi-addr2line -e yourapplication.axf address 

[nagaraj]

Hi,

   We using iar workbench, where to add above command line , what is address have to give.

Thanks,

Nagaraj

[FormerMember]

R1 is pointing at the register POWER --> SYSTEM_OFF.

Does your application call sd_system_off() in an interrupt context with high priority?

[nagaraj]

sd_system_off() never called in our Application. can you please tell me how to use arm-none-eabi-addr2line in iar.

Thanks,

[FormerMember]

arm-none-eabi-addr2line is a command line tool, so no need to use it with IAR. In the build folder from your project, you should find a .elf file, use arm-none-eabi-addr2line "on" that file, like described in my previous answer.

[nagaraj]

 what is address have to give in command line, we are using SEGGER_RTT_PRINTF to print the log messages, sometimes control struck in SEGGER_RTT_vprintf function.

Thanks,

Nagaraj