Target nRF52832(nrf52dk_nrf52832)
SDK NCS v1.9.1
my.dts
&uart0 {
status = "okay";
tx-pin = <14>;
rx-pin = <13>;
rts-pin = <17>;
cts-pin = <16>;
current-speed = <921600>;
hw-flow-control;
};
[URGENT]
Issue: UART Tx failure. (Most of time. In failure case, any data did not transmitted, I checked Tx pin with microscope)
UART works well with PC(usb to serial) Tx, Rx
Issue happened with my target MCU's uart.(UART Rx is good, Tx failed)
But It was fine with old SDK(nRF5_SDK_17.1.0_ddde560).(Tx, Rx). NCS has issue.
For Nordic kind support, we can make it not to late. Thank you. I hope this is to be last question.
Can you please give me guide. I have to prepare new firmware by the end of this week. Pre-mass production is scheduled.
+addition
I found uart_irq_tx_complete() returns '0' for more than 30 sec.(call it every 1 second)