COM1_SEL COM2_SEL EDP VDD_JU1
1 3 RS232 1 3 RS232 1 3 EDP 1 2 3.3V
2 4 2 4 2 4 3 4 5V
3 5 RS485 3 5 RS485 3 5 LVDS 5 6 12V
4 6 4 6 4 6
打印/导出