在EVMC6678L测试板上有三个RS232的串口引脚,请问这三个引脚都是什么功能?
谢谢
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在EVMC6678L测试板上有三个RS232的串口引脚,请问这三个引脚都是什么功能?
谢谢
是用来连PC串口的,开发板套件里有RS232串口线。
COM1 is 3‐pin male connector for RS232 serial interface. A 3‐Pin female to 9‐Pin DTE female cable is supplied with TMDSEVM6678L to connect with the PC.
http://wfcache.advantech.com/support/DSPM-8301E_EVM%20(6678)-3.0/TMDSEVM6678L_Technical_Reference_Manual_2V01_0320.pdf
看下面的原理图16页。
http://wfcache.advantech.com/support/DSPM-8301E_EVM%20(6678)-3.0/TMDSEVM6678Lx_EVM_REV_3_0_DSN.pdf