Question

怎样测试串口

怎样测试串口

Answer 1

以9针串口连接器为例, 先看信号分布:

Rs-232 Serial (Com) Pc Port Connector Db-9
DB-9 PIN (Male) FUNCTION ABBREVIATION
1 <--------- Data Carrier Detect, CD or DCD
2 <--------- Receive Data, RD or RX
3 ---------> Transmitted Data, TX or TD
4 ---------> Data Terminal Ready, DTR
5 ---------- Signal Ground, GND
6 <--------- Data Set Ready, DSR
7 ---------> Request To Send, RTS
8 <--------- Clear To Send, CTS
9 <--------- Ring Indicator, RI
Transmitted and receive data are referenced from the data device and not the modem.

Answer 2

询问供货商 或者 厂家

了解 他们声称的指标和 方法

自己坐下来测试！

祝你顺利

如果对您有帮助，请记得采纳为满意答案，谢谢！祝您生活愉快！

vaela

Answer 3

http://www.wjingw.com/Soft/SoftSearch.aspx?SOFT_name=%B4%AE%BF%DA