uart reception processing error

[yokokawa]

OS in development environment ：Windows7
HARD :(Taiyo Yuden)EBSHSN Series Evaluation Board : Central / Peripherals
CPU :(Nordic) nRF52832 / ARMR Cortex-M4F 32 bit processor 28-pin Land Grid Array / 15GPIOs / SWD
Soft Ver:nRF5_SDK_15.3.0_59ac345
Sample program used: "ble_app_uart" / "ble_app_uart_c"

1) Flow control is being executed, but a fifo error occurs during UART reception processing.
　What are the possible causes?
2) Is it safe to set the UART interrupt priority to 2?
Thanking you in advance.

[Amanda Hsieh]

Hi, 

1) Flow control is being executed, but a fifo error occurs during UART reception processing.

What is the error code? Is APP_UART_FIFO_ERROR? If so, please see this post.

In order to check what error-code that is triggering the fault, please configure your project in debug configuration:

 

The error code and the code-line where the error happened will then be printed in the terminal.

2) Is it safe to set the UART interrupt priority to 2?

 It depends on your application. Did you see any problem after that?

-Amanda H.