I set up K40 UART3 for 9 data bit and 1 stop bit, parity enable and even parity transmission. However When I transmit modbus data with odd parity or no parity to the K40, it can still receive data perfectly.
the same goes to odd parity or no parity setting. And I verified that UART3_C1 register was showing the correct setting. is there something wrong with this K40 parity ?