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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...
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...
Although some FX1-based devices may use the FX1鈥檚 CPU to process USB data directly (Port I/O Mode), most applica- tion...
serial port read/write,对USB和com端口的数据读写可以实时操作，但是com端口必须未被其他程序占用，如果被占用，将会无法打开。
利用 AT89S51 单片机的 P0 端口的 P0.0 － P0.7 连接到一个共阴数码管的 a － h 的笔段上，数码管的公共端接地。在数码管上循环显示 0 － 9 数字，时间间隔 0.2 秒。
利用AT89S51单片机的P0端口的P0.0－P0.7连接到一个共阴数码管的a－h的笔段上，数码管的公共端接地。在数码管上循环显示0－9数字，时间间隔0.2秒。