S32K144 UART problem

Andrew101 — Thu, 18 Sep 2025 08:43:49 GMT

Hello everyone,

I have a prolblem when using the UART example code. I just plugged and flashed the example code but nothing happend. The IDE is S32DS version 3.6.3, the board I use is S32K144 EVB Q100, the RTD I use is version 4.4 and Hercules for display data (baurate in both side is 19200) Thanks for reading.

Re: S32K144 UART problem

Julián_AragónM — Thu, 18 Sep 2025 19:18:38 GMT

Hi @Andrew101,

S32K144 UART example from RTD uses UART0 and FlexIO to test communication:

You can scope these pins to see the transmission. Or you can wait for the example to compare verify the transmissions. From the description.txt file:

- The first welcome message is sent via UART: "Hello, This message is sent via Uart!"
- The second welcome message is sent via UART: "Have a nice day!"
- User need to check return status of Send_Data() function for verifying example.
 

It uses Lpuart instance 0, comunicates with Flexio instance 0 channel 0 for Rx and channel 1 for Tx (connect PTC3 (J4.16) - PTD2(D6)(J6.3) and PTB0 (J4.5) - PTE5(D7)(J6.18)).

Best regards,
Julián

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S32K144 UART problem

Re: S32K144 UART problem