[nrf fromtree] drivers: serial: nrfx_uarte: Add workaround for FRAMET… #2968
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mstasiaknordic
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Jun 18, 2025
nordicjm
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Jun 20, 2025
…IMEOUT corner case When reception is restarted (STARTRX after ENDRX but no STOPRX) it is possible that FRAMETIMEOUT countdown counter will not be started by the first received byte if byte was already being transmitted when STARTRX was called. If that is the only byte then it is expected that timeout will be triggered but since FRAMETIMEOUT counter is not started there is no FRAMETIMEOUT event which has short to STOPRX. This situation will happen in case short buffers are used (< 5 bytes) because then short ENDRX_STARTRX is not used then. Signed-off-by: Krzysztof Chruściński <[email protected]> (cherry picked from commit 94d355a)
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kl-cruz
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…IMEOUT corner case
When reception is restarted (STARTRX after ENDRX but no STOPRX) it is possible that FRAMETIMEOUT countdown counter will not be started by the first received byte if byte was already being transmitted when STARTRX was called. If that is the only byte then it is expected that timeout will be triggered but since FRAMETIMEOUT counter is not started there is no FRAMETIMEOUT event which has short to STOPRX. This situation will happen in case short buffers are used (< 5 bytes) because then short ENDRX_STARTRX is not used then.
(cherry picked from commit 94d355a)