The EVK1101 provides one USART Interfaces: Usart 1 RS232 level converters provide proper voltage levels for compliance to the RS232 standard with full control(UART_1)
Pinout
This USART Interface is connected through level adapter to two DB9 connectors. This has the following pinout:
| GPIO Name | Alternate function used |
|---|---|
| PA 23 | U1_TX |
| PB 04 | U1_CTS |
| PA 24 | U1_RX |
| PB 05 | U1_RTS |