Issue while debugging ble_app_uart program on nRF52832 in IAR IDE version 8.20.1.

[SWAPNIL PENDHARE]

I am facing issues in debugging  ble_app_uart program available in nRF5 SDK.  I am trying to debug it on IAR workbench using Jlink PLUS debugger in SWD mode. 

I could connect and download the program. but whenever program calls sd_softdevice_enable() function for enabling soft device it hangs. 

Details about setup. 

• controller       : nRF52832 (512KB flash) on Fanstel module BC832 
• Debugger      : Segger Jlink Plus in 6 pin SWD mode. 
• IDE                : IAR workbench v 8.20.1 
• SDK version  : nRF5_SDK_15.2.0_9412b96
• Test program : nRF5_SDK_15.2.0_9412b96\examples\ble_peripheral\ble_app_uart

I have added additional command to download Soft device \nRF5_SDK_15.2.0_9412b96\components\softdevice\s132\hex\s132_nrf52_6.1.0_softdevice.hex at address location 0x0000

I could program and debug normal application that does not involve Soft Device. e.g. nRF5_SDK_15.2.0_9412b96\examples\peripheral\uart.

When program involves soft device; after accessing softdevice related APIs, IDE hangs and we can not further debug the program.

 

[AndreasF]

Hi.

It looks like the Fanstel BC832 does not have any on-board crystal, it therefore "hangs" when you call sd_softdevice_enable().

You have to edit a define in sdk_config.h

Change this:

//==========================================================
// <o> NRF_SDH_CLOCK_LF_SRC  - SoftDevice clock source.
 
// <0=> NRF_CLOCK_LF_SRC_RC 
// <1=> NRF_CLOCK_LF_SRC_XTAL 
// <2=> NRF_CLOCK_LF_SRC_SYNTH 

#ifndef NRF_SDH_CLOCK_LF_SRC
#define NRF_SDH_CLOCK_LF_SRC 1
#endif

To this:

//==========================================================
// <o> NRF_SDH_CLOCK_LF_SRC  - SoftDevice clock source.
 
// <0=> NRF_CLOCK_LF_SRC_RC 
// <1=> NRF_CLOCK_LF_SRC_XTAL 
// <2=> NRF_CLOCK_LF_SRC_SYNTH 

#ifndef NRF_SDH_CLOCK_LF_SRC
#define NRF_SDH_CLOCK_LF_SRC 0
#endif

Try this.

Best regards,

Andreas

[SWAPNIL PENDHARE]

Thanks for the input, but with the option NRF_SDH_CLOCK_LF_SRC set to 0,  I am getting following

Error[Pe035]: #error directive: Please select NRF_CLOCK_LF_ACCURACY_500_PPM when using NRF_CLOCK_LF_SRC_RC C:\Users\cpendhs\git\ncs\nRF5_SDK_15.2.0_9412b96\components\softdevice\common\nrf_sdh.c 78 

for this issue I am left with 2 option

Option 1 

// <0=> NRF_CLOCK_LF_SRC_RC 
// <1=> NRF_CLOCK_LF_SRC_XTAL 
// <2=> NRF_CLOCK_LF_SRC_SYNTH 

#ifndef NRF_SDH_CLOCK_LF_SRC
#define NRF_SDH_CLOCK_LF_SRC NRF_CLOCK_LF_SRC_RC
#endif

//AND 

// <0=> NRF_CLOCK_LF_ACCURACY_250_PPM 
// <1=> NRF_CLOCK_LF_ACCURACY_500_PPM 
// <2=> NRF_CLOCK_LF_ACCURACY_150_PPM 
// <3=> NRF_CLOCK_LF_ACCURACY_100_PPM 
// <4=> NRF_CLOCK_LF_ACCURACY_75_PPM 
// <5=> NRF_CLOCK_LF_ACCURACY_50_PPM 
// <6=> NRF_CLOCK_LF_ACCURACY_30_PPM 
// <7=> NRF_CLOCK_LF_ACCURACY_20_PPM 
// <8=> NRF_CLOCK_LF_ACCURACY_10_PPM 
// <9=> NRF_CLOCK_LF_ACCURACY_5_PPM 
// <10=> NRF_CLOCK_LF_ACCURACY_2_PPM 
// <11=> NRF_CLOCK_LF_ACCURACY_1_PPM 

#ifndef NRF_SDH_CLOCK_LF_ACCURACY
#define NRF_SDH_CLOCK_LF_ACCURACY NRF_CLOCK_LF_ACCURACY_500_PPM
#endif

Or second option would be 

// <0=> NRF_CLOCK_LF_SRC_RC 
// <1=> NRF_CLOCK_LF_SRC_XTAL 
// <2=> NRF_CLOCK_LF_SRC_SYNTH 

#ifndef NRF_SDH_CLOCK_LF_SRC
#define NRF_SDH_CLOCK_LF_SRC NRF_CLOCK_LF_SRC_SYNTH
#endif

What would be better option out of these two.