基于MDK（3.22以上版本）的stm32的V2.0版本的固件函数库。

单片机串口发数，通过串口调试助手可以显示，COM口为实际使用的，波特率设置为：57600

arm上的gprs通信模块，测试可用哦，希望对你有用啦。-arm on the gprs communication module, the test can be oh, want to be useful to you啦.

Example PWM module program for LPC2100 -Example PWM module program for LPC2100

MC9S08QE128的SPI总线驱动程序-The SPI bus driver MC9S08QE128

这些都是常用的通信设备的电路原理图，很多是高频电子线路的-These are commonly used in communications equipment circuit schematics, many of them are high-frequency electronic circuits

AT91SAM7A3-BasicTools-IAR4_30A-1_21.rar为AT91SAM7A3开发板IAR环境下的例程-AT91SAM7A3- BasicTools- IAR4_30A- 1_21. rar for AT91SAM7A3 IAR Development Board under the environment routines

modbus 运用事例-modbus example

本实验利用8253做定时器，用定时器输出的脉冲控制8259产生中断 在8259中断处理程序中，对时、分、秒进行计数，在等待中断的循 环中用LED显示时间。 8253用定时器/计数器1，8253片选接CS4，地址为0C000H。8253时钟 源CLK1接分频电路的F/64输出。分频器的Fin接4MHz时钟。8253的 GATE1接VCC。 8259中断INT0接8253的OUT1，片选接CS5，地址为0D000H。 显示电路的KEY/LED CS 接CS0，地址为08000H。-In this study, the use of 8253 to do the timer, using timer pulse output control 8259 generates an interrupt in 8259 interrupt handler, for hours, minutes and seconds count, waiting for interruption through ring using LED display time. 8253 with the timer/counter 1,8253 chip select access CS4, address 0C000H. 8253 clock source CLK1 of the F/64 then divider circuit output. Fin then 4MHz clock divider. 8253" s GATE1 then VCC. 8259 interrupt INT0 then 8253" s OUT1, chip select access CS5, address 0D000H. Display circuit of the KEY/LED CS access CS0, address 08000H.

Led matrix display sample for 89C51 with 74HC595

MPC860的SCC1配置以太网示例代码-MPC860 SCC1 configuration Ethernet sample code