UART communication FIFO 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

Because a UART FIFO error has occurred in the device currently under development,
Confirmed the operation of the sample program.
We communicated with the sample program of ble_app_uart_c and ble_app_uart.
result:
If 2kbyte data is transmitted continuously, a FIFO error will occur regardless of whether or not flow control is performed with the UART.
Please tell me how to take measures.

[Simon]

If 2kbyte data is transmitted continuously, a FIFO error will occur regardless of whether or not flow control is performed with the UART.
Please tell me how to take measures.

 Could you provide some more information? What function causes the error and what kind of error does the function return?

This video will help you figure it out:

Best regards,

Simon

[yokokawa]

"Error Action (Central)"
When 2kbyte communication is performed, an error occurs at the following position regardless of the UART flow control.
("App_fifo_put()" of "ble_app_uart_c" during UART transmission))

In the answer below, it was suggested to use "uart_nrf5x.c". Is there a way to improve using the program provided by nordic?

[Nguyen Hoan Hoang]

As I already suggested,  you can use Nordic nrfx_uart driver instead of app_uart.