Debug problem on CDC ACM example

[alexlöddeköpinge]

Hi everyone,

I'm using ses IDE to debug via J-link on nRF52840 DK.

I'm debbuging CDC ACM example (I haven't changed it) but  when I debug:   ret = app_usbd_cdc_acm_write(&m_app_cdc_acm, m_tx_buffer, size) I have that ret is not NRF_SUCCESS,

Why?

BR

[Karl Ylvisaker]

Hello,

I'm debbuging CDC ACM example (I haven't changed it) but  when I debug:   ret = app_usbd_cdc_acm_write(&m_app_cdc_acm, m_tx_buffer, size) I have that ret is not NRF_SUCCESS,

Could you make sure that you have DEBUG defined in your preprocessor defines, like shown in the included image?
This will make a more complete error message be printed to your logger output when an APP_ERROR_CHECK is passed a non-NRF_SUCCESS argument.
 
Please do this, and let me know what is outputted to your log when the error occurs.

Best regards,
Karl