ATX-6951-COM
来自ARM Wiki
Wangqiuyun(讨论 | 贡献)2018年7月20日 (五) 10:15的版本 (创建页面,内容为“600px|缩略图|MITX-6959 COM1,COM2-COM10,J9 ===== COM1: ===== :{| class="wikitable" |- ! Pin !! 信号名称 |...”)
COM1:
Pin 信号名称 1 DCD 2 RXD 3 TXD 4 DTR 5 GND 6 DSR 7 RTS 8 CTS 9 RI
- 当COM1,COM2设置为RS232/RS422/RS485时,主板插针定义:
Pin RS232(默认) RS422 RS485 1 DCD TX- DATA- 2 DSR NC NC 3 TXD TX+ DATA+ 4 RTS NC NC 5 RXD RX+ NC 6 CTS NC NC 7 DTR RX- NC 8 RI NC NC 9 GND GND GND 10 GND GND GND
- COM1,COM2 跳线功能设置(J1,J2,J3,J4,J5,J6):
Pin COM1 AS RS232 PORT Pin COM1 AS RS422 PORT Pin COM1 AS RS485 PORT J4 1-3 2-4 J4 3-5 4-6 J4 3-5 4-6 J5 1-3 2-4 J5 3-5 4-6 J5 3-5 4-6 J6 1-2 J6 3-4 J6 5-6 7-8 Pin COM2 AS RS232 PORT Pin COM2 AS RS422 PORT Pin COM2 AS RS485 PORT J1 1-3 2-4 J1 3-5 4-6 J1 3-5 4-6 J2 1-3 2-4 J2 3-5 4-6 J2 3-5 4-6 J3 1-2 J3 3-4 J3 5-6 7-8