查看“EMB-3531-COM”的源代码

===== COM1引脚定义 =====
====== COM1 跳线功能设置(J1、J2) ======
:(J1, J2)跳线用来设置 COM1 的传输模式, COM1 支持 RS232/RS485 两种传输模式,您可以根据您自身的需求来选择设置,默认传输模式为 RS232。
::'''J1、J2:'''
:{| class="wikitable"
|-
|colspan=2|COM1 AS RS232 PORT ||colspan=2|COM2 AS RS485 PORT
|-
| J1 || 1-2 || J1 ||3-4,5-6
|-
|  J2 || 1-3,2-4 ||J2 ||3-5,4-6 
|}
====== 当 COM1 设置为 RS232 时,主板插针定义 ======
{| class="wikitable"
|-
! 信号名称 !! Pin# !! Pin# !! 信号名称 
|-
| COM1_SOUT_DATA-  || 1 || 2 || NC
|-
| COM1_SIN_DATA+ || 3 || 4 || /
|-
| /   || 5 || 6 || /
|-
| NC  || 7 || 8 || NC
|-
| GND || 9 || 10 || GND
|}

====== 当 COM1 设置为 RS485 时,主板插针定义 ======
{| class="wikitable"
|-
! 信号名称 !! Pin# !! Pin# !! 信号名称 
|-
| / || 1 || 2 || NC
|-
| / || 3 || 4 || COM1_RTS
|-
| COM1_TXD || 5 || 6 || COM1_CTS
|-
| NC  || 7 || 8 || NC
|-
| GND || 9 || 10 || GND
|}


===== COM2_3引脚定义 =====
======其中 COM3 跳线功能设置(J3、J4)======
:(J3, J4)跳线用来设置 COM3 的传输模式, COM3 支持 RS232/RS485两种传输模式,您可以根据您自身的需求来选择设置,默认传输模式为 RS232。

::'''J3、J4:'''
:{| class="wikitable"
|-
|colspan=2|COM3 AS RS232 PORT ||colspan=2|COM3 AS RS485 PORT
|-
| J3 || 1-2 || J3 ||3-4,5-6
|-
|  J4 || 1-3,2-4 || J4 ||3-5,4-6 
|}
====== 当 COM3 设置为 RS232 时,主板插针定义 ======
{| class="wikitable"
|-
! 信号名称 !! Pin# !! Pin# !! 信号名称 
|-
|DATA-  || 1 || 2 || DB_RXD
|-
| DATA+/RXD || 3 || 4 || DB_TXD
|-
|TXD || 5 || 6 || NC
|-
|NC  || 7 || 8 || NC
|-
| GND || 9 || 10 || GND
|}


====== 当 COM3 设置为 RS485 时,主板插针定义 ======
{| class="wikitable"
|-
! 信号名称 !! Pin# !! Pin# !! 信号名称 
|-
|DATA-  || 1 || 2 || DB_RXD
|-
| DATA+/RXD || 3 || 4 || DB_TXD
|-
|TXD || 5 || 6 || NC
|-
|NC  || 7 || 8 || NC
|-
| GND || 9 || 10 || GND
|}


===== COM4_7引脚定义 =====
{| class="wikitable"
|-
! 信号名称 !! Pin# !! Pin# !! 信号名称 
|-
| NC || 1 || 2 || NC
|-
| COM5_RX || 3 || 4 || COM5_RTS
|-
|COM5_TX || 5 || 6 || COM5_CTS
|-
| NC || 7 || 8 ||NC 
|-
| GND || 9 || 10 || GND
|-
| NC || 11 || 12 || NC
|-
|COM6_RX || 13 || 14 || COM6_RTS
|-
| COM6_TX || 15 || 16 || COM6_CTS
|-
|NC ||  17 || 18 || NC
|-
| GND || 19 || 20|| GND
|-
| NC || 21 || 22 || NC
|-
|COM7_RX  || 23 || 24 || COM7_RTS
|-
| COM7_TX || 25 || 26 || COM7_CTS
|-
| NC || 27 || 28 || NC
|-
| GND  ||29 || 30|| GND
|-
| NC  ||31 || 32 || NC
|-
| COM8_RX || 33 || 34 || COM8_RTS
|-
| COM8_TX || 35 || 36 || COM8_CTS
|-
| NC || 37 || 38 || NC
|-
|  GND ||39 || 40|| GND
|}