nRF52832 UART flow control

RE: nRF52832 UART flow control

beemavishnu — Wed, 26 Jun 2019 09:41:49 GMT

Thank you for confirmation.

RE: nRF52832 UART flow control

Amanda Hsieh — Wed, 26 Jun 2019 07:37:35 GMT

Hi,

Yes, HWFC is the UART flow control (CTS, RTS) support in hardware. The HWFC macro is set to enable the Hardware Flow Control, and it is not used in the BLE Blinky Application. Therefore, it could be set to 0.

Hardware Flow Control (HWFC)

A handshaking mechanism used to prevent an overflow of bytes in modems. It is utilizing two dedicated pins on the RS-232 connector, Request to Send and Clear to Send.

Best regards,

Amanda

RE: nRF52832 UART flow control

beemavishnu — Wed, 26 Jun 2019 03:44:32 GMT

I have gone through these links and even the same in sdk_config.h. To my understanding flow control is disabled by seeing the macro UART_DEFAULT_CONFIG_HWFC to 0. But I got confused when HWFC macro is set to true.

RE: nRF52832 UART flow control

awneil — Tue, 25 Jun 2019 14:37:28 GMT

https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/group__nrfx__uarte__config.html

https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/group__nrfx__uarte__config.html#gaec568bea6b092010600de839cd6b500f