I am a new hand on imx257.
Now I want to make some simple UART test code on imx25 PDK startkit. What I want to do is just send out some data on UART_1. (no interrupt, no CTS, no RTS, very simple...)
The test code is as below:
|// UART Init|
|UCR2_1_bit.SRST = 0; //reset|
|UCR1_1_bit.UARTEN = 1;//enable UART|
|UFCR_1_bit.RFDIV = 5;||// Divide input clock by 1|
|UCR2_1_bit.IRTS = 1; //ignore RTS pin|
|UCR2_1_bit.WS = 1; //8 bit|
|UCR2_1_bit.TXEN = 1;|
|UCR3_1_bit.RXDMUXSEL = 1;|
|UTXD_1 = 0x000000AA;|
Currently, the FIFO empty flag became 0, but I can not catch any data by oscilloscope on UART1_TXD pin. Can anybody tell me is there any setting should I do for UART sending?