NRF51822 + Softdevice can't work properly with IAR

[chang sheng lung]

Mother board :6310 IAR: IAR Embedded workbench for ARM: 7.10.1.6735 IAR Embedded Workbench common components 7.0.2.3053

Softdevice: S110_nrf51822_6.0.0

sample Project: ble_app_hrs

memory allocation: define symbol ICFEDIT_region_ROM_start = 0x00014000; define symbol ICFEDIT_region_ROM_end = 0x0003EFFF; define symbol ICFEDIT_region_RAM_start = 0x20002000; define symbol ICFEDIT_region_RAM_end = 0x20003FFF;

intvector: define symbol ICFEDIT_intvec_start = 0x00014000;

device always reset at function application_timers_start()

[Håkon Alseth]

Hi,

Are you by any chance debugging when you're seeing this issue? We have seen that there's an issue with IAR + S110 when debugging. The issue is that IAR jumps directly to the applications reset handler (0x14000).

This can be worked around by adding this line under "Options > Debugger > Extra Options > Command line options": --drv_vector_table_base=0x0

Best regards Håkon

[chang sheng lung]

Hi, Yes, the IAR workspace was set to Debug mode, adding a command line in Extra Options wouldn't help.

One thing interest is that if I just set the processor variant  to "Core=Cortex-M0"  then it works fine. but I not sure if it is OK to change the processor variant form NordicSemi nRF51822-QFAA to Cortex-M0.

[Håkon Alseth]

Hi,

I have the same compiler and IDE version as you, and I have not seen any issues with selecting 51822 core instead of Cortex-M0. Remember to also select the correct debugger (J-Link) as well as adding the line under extra options.

BR Håkon

[chang sheng lung]

Hi Håkon,

After re-install the SDK, adding a options to Debugger. it works fine.

Thanks.