How to clear memory buffer which stores the received data over BLE UART after each transmission?

[Jaydev Borkar]

I am using ble_app_uart example to transmit data from phone to the NRF52840 device. The issue is, the buffer retains previous data sent and this prints alongwith the new data sent. Is there a way to clear the buffer before a new transmission occurs?

SDK - 17.0

Board - NRF52840

[Hung Bui]

Hi Jaydev, 

Please give more information on the buffer you are asking about ? Is it the buffer to send on UART or it's the buffer to send on BLE? 

Please show some log to explain.

[Jaydev Borkar]

The issue got sorted out. I used app_fifo_flush to clear the buffer.