Board: FRDM-K22F
IDE: KDS 3.2
I want to send a few bytes out UART-1 on the FRDM.
1200 baud, 7-bit, even parity, 1 stop bit (required by SDI-12 sensor interface).
I see no activity on the Tx Output at pin D14.
Error code is "8" or "BUSY"
However...I do see activity if I send a BREAK.
Attached is my project.
It's very simple.
What am I doing wrong?
UPDATE: If I use the "AsynchroSerial" component, and sent one character at a time, it seems to work.
Why? It uses the Serial_LDD.