UART interrupt lost

RE: UART interrupt lost

Vidar Berg — Tue, 07 Aug 2018 06:39:29 GMT

Thanks for the update. I was not aware of this limitation in the UART driver. Fortunately it was an easy fix.

Be aware that you will loose bytes if there are framing errors (error conditions) which might be acceptable in your case. If not you could try to enable HFXO to see if it improves the performance at higher baudrates (sd_clock_hfclk_request).

RE: UART interrupt lost

amaesa — Mon, 06 Aug 2018 16:34:13 GMT

Hi Vidar, I've actually just found this fix that was posted few days ago, which seems to have eliminated the issue at higher baud rates. https://devzone.nordicsemi.com/f/nordic-q-a/37120/nrfx_uart-bug

RE: UART interrupt lost

Vidar Berg — Mon, 06 Aug 2018 12:19:49 GMT

Hi,

Does RX reception get re-enabled if an error condition occurs (reported through NRF_DRV_UART_EVT_ERROR driver event) in your application? Maybe you are getting an framing error,etc that effectively disables RX?