本程序是基于LABVIEW编写的，利用VISA可以实现与单片机的串口通讯，不需要想其他语言那样考虑串口底层驱动-This procedure is based on LABVIEW written using VISA can be achieved with the microcontroller serial communication, you do not need to think of other languages as serial consider the underlying

myRIO开发 继承底层驱动 IIC GPIO SPI 串口等底层协议-myRIO dev

通过串口控制继电器板卡的通断，底层驱动程序(Through the serial port control relay card off, the underlying driver)