How to test the flow control of NRF54L15-PDK-0.8.1-ZEPHRY2.8.0 UART00？

RE: How to test the flow control of NRF54L15-PDK-0.8.1-ZEPHRY2.8.0 UART00？

Dtcong — Wed, 15 Jan 2025 02:43:04 GMT

Think，

I found the problem.When configuring serial port flow control for the 54 series, pull up the CTS and RX configurations in the default state.
Dtcong

RE: How to test the flow control of NRF54L15-PDK-0.8.1-ZEPHRY2.8.0 UART00？

Dtcong — Wed, 08 Jan 2025 10:16:06 GMT

Hello，

Is there any example of self-built board test serial port on NRF54L15PDK.There seems to be a slight difference between the 54 series and the 52 series, and I think the external connection test serial port has been trying to fail

Dtcong

RE: How to test the flow control of NRF54L15-PDK-0.8.1-ZEPHRY2.8.0 UART00？

Kenneth — Tue, 07 Jan 2025 22:16:19 GMT

Hello,

Not tried it, but for test you can at least try to remove the "hw-flow-control" in case RTS/CTS is not handled properly, also make sure that the RXD pin is pulled high (else it will trigger framing errors). Last comment, I can see two pins are by default used by led, have you also disabled those in the devicetree?
https://docs.nordicsemi.com/bundle/ug_nrf54l15_dk/page/UG/nRF54L15_DK/hw_desription/connector_if.html

Kenneth