STEVAL-STMDLTE (BG96) WITH NRF52840 using UART

RE: STEVAL-STMDLTE (BG96) WITH NRF52840 using UART

user2111 — Thu, 09 Jun 2022 12:59:20 GMT

Have you tried to connect RXD to TXD and check that you can loopback the data as expected?

You can try to increase the timeout to see if that helps, try: .timeout_us = 1000,

Have in mind that each time you receive NRF_LIBUARTE_ASYNC_EVT_RX_DATA, that you should check the number of bytes received from p_evt->data.rxtx.length.

Best regards,
Kenneth

RE: STEVAL-STMDLTE (BG96) WITH NRF52840 using UART

user71585 — Wed, 08 Jun 2022 15:47:02 GMT

Hi Kenneth,

Thanks for your feedback.

yes I looked with a logic analyzer, it works 3 times out of 100, I can see the 
response on the logic analyzer but not on the reception buffer .

Best regards.
Lora

RE: STEVAL-STMDLTE (BG96) WITH NRF52840 using UART

user2111 — Wed, 08 Jun 2022 15:27:43 GMT

Have you looked at a logic analyzer trace and compared bytes/timing when working/failing?

Best regards,

Kenneth