RE: Write loop

arikramon — Tue, 26 May 2020 14:17:50 GMT

Hi,

OK. Ifound the problem. the parameter NRF_ERROR_TIMEOUT should be changed to NRF_SERIAL_MAX_TIMEOUT

Thanks

RE: Write loop

Edvin — Tue, 26 May 2020 14:05:51 GMT

So nrf_serial_write returns 8 == NRF_ERROR_INVALID_STATE when you try to call it after the first time.

I guess it is because the check inside nrf_serial_write:

if (!(p_serial->p_ctx->flags & NRF_SERIAL_TX_ENABLED_FLAG))

returns true. I can't see any obvious reason, but here are a few things you can check:

1. Your log says "Start UV calibration" and "Start Consol", so I suspect that the snippet that you attached is a simplified snippet, since this doesn't print those lines? What do you do between nrf_serial_init() and nrf_serial_write()? Or are those prints from another thread?

2. You use this delay, vTaskDelay(). Can it be that the UART doesn't get time to be processed? Perhaps you can try with another form of delay, like a timer or something to allow the UART to print in between the calls to nrf_serial_write?

BR,

Edvin