The IMX has different UART TTL serial ports. These serial ports can be converted from TTL to RS232 or RS422 using a level converter, such as found on the Rugged, EVB-1, and EVB-2 carrier boards.
Actual Baud Rates - UART (Serial 0 and Serial 2)¶
The serial ports use different peripherals so the actual baud rates of the ports differ. Serial ports 0 and 2 are UART and Serial 1 is USART.
Due to UART hardware integer rounding on the IMX serial ports 0 and 2, the following table outlines the difference between desired and actual UART baud rate settings. Note that the difference is more significant at higher baud rates.
|Desired Baud Rate (bps)||Actual Baud Rate (bps)|