data not updating in the custom app over a ble

Hi, 

Does it also have the same issue with the nRF Connect for Mobile app/nRF52840DK? If the issue is in the custom app, I would suggest seeking help on https://stackoverflow.com/.

Regards,
Amanda   

Hi, 

Does it also have the same issue with the nRF Connect for Mobile app/nRF52840DK? If the issue is in the custom app, I would suggest seeking help on https://stackoverflow.com/.

Regards,
Amanda   

Hello,

thanks for the reply,

user77782 said:

Does it also have the same issue with the nRF Connect for Mobile app/nRF52840DK?

yes, sometimes i got [NRF_ERROR_SVC_HANDLER_MISSING] 0x08 so its a uart communication error that is over running error so already i have enable the HW_FLOW_CONTROL and iff i reduce the buadrate it doesn't work how can i trouble shoot this please let me know.

thank you.

Hi, 

Did you debug, and check where in the code APP_ERROR_CHECK() is triggering? Does it come from the uart_event_handle(): APP_UART_COMMUNICATION_ERROR event? If so, the error is really NRF_UARTE_ERROR_OVERRUN_MASK. Please check this by taking a look at the value of app_uart_evt_t::error_communication when the error occurs. As indicated here, the value is 1 when the UART is overrun.

Please enable the EasyDMA (UART_EASY_DMA_SUPPORT set to 1 in sdk_config.h) if you have not already done that, and see if it improves the situation.

-Amanda

Hello,

 thanks for the reply, 

user77782 said:

Please enable the EasyDMA (UART_EASY_DMA_SUPPORT set to 1 in sdk_config.h) if you have not already done that, and see if it improves the situation.

I have already done this.

user77782 said:

Did you debug, and check where in the code APP_ERROR_CHECK() is triggering? Does it come from the uart_event_handle(): APP_UART_COMMUNICATION_ERROR event? If so, the error is really NRF_UARTE_ERROR_OVERRUN_MASK. Please check this by taking a look at the value of app_uart_evt_t::error_communication when the error occurs. As indicated here, the value is 1 when the UART is overrun.

error code is 0x08, so what i need to do now please assist e to solve this problem 

thank you

Hi, 

You didn't answer the question.

Which function triggers the error? Are you sure that you are getting the NRF_ERROR_SVC_HANDLER_MISSING in the APP_UART_COMMUNICATION_ERROR event?

What IDE/Toolchain are you using?

What SDK version is this?

Could you add a screenshot, or a debug log/trace that shows the error?

-Amanda