pausing RX LibUARTE async with HWFC

RE: pausing RX LibUARTE async with HWFC

doowl — Fri, 03 Mar 2023 09:04:57 GMT

Hiya,

I did not end up getting it working by swapping pins around, but eventually it did end up working, not entirely sure what happened. Maybe it worked already but the problem was on the opposing side of the serial connection. Regardless, these functions do what they should. Albeit I have to use nrf_libuarte_async_rts_set() to deassert, and nrf_libuarte_async_rts_clear() to assert. Perhaps I misconfigured something else, but the functions definitely perform the required functionality!

Thanks for the confirmation and help!

RE: pausing RX LibUARTE async with HWFC

doowl — Mon, 20 Feb 2023 19:54:57 GMT

I did set NRF_LIBUARTE_DRV_HWFC_ENABLED to 1, perhaps the problem is that we use 'traditional' CTS/RTS, that is CTS for RX, RTS for TX. I'll try swapping around some pins tomorrow just to make sure, if it suddenly starts working I'll know where I went wrong :p.

RE: pausing RX LibUARTE async with HWFC

Sigurd — Mon, 20 Feb 2023 13:41:04 GMT

Hi,

I think nrf_libuarte_async_rts_clear()/nrf_libuarte_async_rts_set() should have worked here. Did you set

NRF_LIBUARTE_DRV_HWFC_ENABLED to 1 in sdk_config.h ?