Modbus工控板-GD32MCU开发板Workshop报告.pdf32:0UT1(PA11)
3:RS485n1(PA12)
34: SWDIO(PA13)
35: 2C0 SCI
36: I2C0 SDA
37: RS485Tx1/SWCLK(PA14)
38:RS485Rx1(PA15)
39:IN3(PB3)
40:IN4(PB4)
41:IN5(PB5)
42:IN6(PB6)
43:IN7(PB7)
44: BOOTO
45:0UT0(PB8)
46:NC
47: VSS
48. V