Adapting NRF52832 example to custom board with NRF52810

[cory123]

My custom board with NRF52810 is done and I'm now trying to get some examples working. I am adapting blinky_s132 in SES. To do this I edited the project options including disabling the FPU, defining BOARD_CUSTOM, chaning the device definition to NRF52810_XXAA, and some other changes. I've attached the SES project file. I also opened this project file in a text editor and changed  ...

arm_target_device_name="nRF52810_xxAA"

I also created a custom_board.h which I have attached. The program compiles correctly and programs fine but when debugging it seems to get stuck in a trap. I don't think SES has registered that I'm using 52810 instead of 52832 as can be seem by the flash and ram usage. Can you help me resolve this?

By the way, I can't seem to upload more than one file for some reason.

[cory123]

[cory123]

I think I have resolved this issue. Instead of adapting the PCA10040 project, I'm adapting PCA10040e which is set up for NFR52810 emulation. Can you tell me, is there any options I need to change from the "emulated NRF52810" to the real NRF52810? Much appreciated!

[cory123]

I enabled RTT as suggested and also disabled deferred logging with...

NRF_LOG_DEFERRED=0

I can now see RTT output from this I added in main.c .....

NRF_LOG_WARNING("hello you\n");

I am getting no RTT output from the SoftDevice or any other RTT output at all. When the SVCALL(SD_SOFTDEVICE_ENABLE ...) is called the program runs until it gets trapped (see screencap). Am I programming the SoftDevice incorrectly? I'm can't seem to figure this one out!

[cory123]

I have found that I am not using a low frequency XTAL and so I need to set ...

NRF_SDH_CLOCK_LF_SRC 0

After changing that in sdk_config.h my program drops into app_error_fault_handler(). Am I setting the LF clock correctly when I set NRF_SDH_CLOCK_LF_SRC  to 0? I'm not using any LF hardware clock outside of the NRF52810. You thoughts?

[Amanda Hsieh]

Hi, 

See the Clock source page for information about the SoftDevice clock source. If you don't have LF crystal, you will need to use the RC Oscillator. Please see this post to set the sdk_config.h and let me know it help or not.  

-Amanda H.

[cory123]

I'm seeing 3 section in sdk_config.h which configure the LF clock...

// <h> Clock - SoftDevice clock configuration

// <e> NRF_CLOCK_ENABLED - nrf_drv_clock - CLOCK peripheral driver - legacy layer

// <e> NRFX_CLOCK_ENABLED - nrfx_clock - CLOCK peripheral driver

Do I need to enable the RC LF in all of those sections?

[Amanda Hsieh]

cory123 said:

Do I need to enable the RC LF in all of those sections?

 Yes. Please also see this post and this. 

-Amanda H.