UART inserting extra data into stream

RE: UART inserting extra data into stream

kevinc — Tue, 08 Oct 2019 14:23:23 GMT

Hi Bjørn,

I think I've figured out my issue. The UART seems to be inserting stop bits after every 8 bits transmitted. I think I'll have to bit-bang the output to get the signal I need.

Thanks,

Kevin

RE: UART inserting extra data into stream

bjorn-spockeli — Tue, 08 Oct 2019 13:14:48 GMT

Hi kevin,

could you share the project so that I can try to reproduce the issue on a nRF52832 DK and examine the output with a logic analyzer? Its a bit hard to accurately decode the output just from a screenshot.

Best regards

Bjørn

RE: UART inserting extra data into stream

kevinc — Mon, 07 Oct 2019 21:16:15 GMT

As a follow up, I'm starting the UART transmission as follows:

APP_ERROR_CHECK(nrf_serial_init(&m_serialUart,&m_uart0_drv_config,&m_serial));
APP_ERROR_CHECK(nrf_serial_write(&m_serialUart,txFrameData,(size_t)4,NULL,500));