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a simple PC Dos program for getting DEX data out of the Vending Machine s DEX port. compile under Borland C++ 3.1
This software allows users to see how a serial async com port can be used to comunicate with a sync device (SPI). In thi...
This designs demonstrates how to use the Ethernet port using a Nios II system on the DE2 board. It sends packets, and us...
继电器控制,设8255为A口输入,C口输出,延时5s,是否有键按下,若有则转exit,查询8255的PA0是否为高电平,若不是则继续,定时时间到，子程序返回
功能： 1、作为下位机采集8255数据并将此数据通过通讯送出， 2、采集数据为BCD，先转换成二进制，处理后再转换成BCD 3、通讯采用方式3，多机通讯，上位机发地址时TB8=1，其他TB8=0 下位机SM2=1，RB8=1时...
功能： 1、作为下位机采集8255数据并将此数据通过通讯送出，传输十路 2、采集数据为BCD，不处理后 3、通讯采用方式一
Note that only the PORT is provided and it is assumed that you have the rest of the source for µ C/OS-II from the b...
A simple C program to strobe the LEDsvia Port D. The strobe rate is to be set by adjusting the voltage drop over a poten...