Hello Marcos,
- Please first be sure the UART port is right .
- The component of "CosnsoleIO" can used to send data through UART:

- If still can't use , please tell me which IDE and which version do you used ?
And also send your project to me , or I don't know where is the "FSL_DEBUG_CONSOLE functions"
and "dbg_putchar() ".
BR
Alice