arm的各种源码 包含（16c54四位LED时钟显示程序，16C84的RB口中断程序，16C84做的智能卡程序，电机速度控制，ICD仿真器的源程序，PIC单片机

SD卡驱动 SD_CARD_TIMEOUT 当一个SD卡的操作超出时限，将导致返回错误和该标记被置位 SD_CARD_EXIST 当卡槽内插入了合适的卡体，不管是什么卡，都会使该位被设置； SD_CARD_WRITE_PROTECT 当卡体的写保护开关被 LOCK 时，则该位被设置； SD_CARD_READY 当卡槽内的卡被正确识别，并可以随时访问时，则该位被设置； SD_CARD_DOOR_CLOSE 当卡槽的门（产品外壳上的挡板开关）关闭时，则该位被设置； SD_CARD_IS_SD 当卡槽内插入的是 SD 卡时，则该位被设置。 SD_CARD_IS_MMC 当卡槽内插入的是 MMC 卡时，则该位被设置； 注意：不要使用 0x80，免得和整数作逻辑运算时被误为负数。-err

arm lpc2132 driver for GPIO_Led1

暑假为学生培训写的51相关接口的所有源码及项目代码，包括串口通信、IIC、SPI、8255、ADC、PWM、WDT等，并且涉及到一些项目级的封装比如通讯协议等。-Summer vacation for students to write the 51 training-related interfaces and project all source code, including serial communication, IIC, SPI, 8255, ADC, PWM, WDT, etc., and involve a number of projects such as communications package-level agreements.

程序详细功能介绍： * 利用AT89S51单片机的P0端口的P0.0－P0.7连接到一个共阳数码管的a－h的笔段上， * 数码管的公共端通过三极管8550选通。在数码管上循环显示0－9数字，显示时间的间隔可通过修改延时程序。 -Procedures detailed functional Introduction:* use AT89S51 MCU port P0 is connected to P0.0-P0.7 Yang a total digital control of the a-h T segment,* digital tube through the public side-gated transistor 8550. In the digital control on the circulation figures 0-9 show, indicating the time interval may be delayed by modifying the procedures.

红外线遥控器按键检测程序. 通过检测两次下降沿之间的时间差判断接受到的数据位. 已经通过了测试,能够正确区分出32bit数据的遥控器按键键值. 具有数据重发功能,但是数据的重发有点频繁. 使用晶震频率为11.0592MHz,所有定时值都是基于这个频率计算. 占用很少量的CPU时间,使用了外部中断0接受数据,定时器0进行计数, 定时器1作为串口的波特率发生器(Band = 9600).-Infra-red remote control button detection program. By detecting falling edge twice to determine the time difference between the received data bit. Has passed the test, could correctly distinguish 32bit data button remote control key. With data re-issued, but data a bit of re-issued frequent. Zhenyuan frequency of use of crystal 11.0592MHz, all timing values are calculated based on this frequency. occupied by small quantities of CPU time, use the external interrupt 0 to accept data, timer 0 to count, timer 1 as a string port baud rate generator (Band = 9600).

C语言 端口控制和中断控制 数据的读取 控制电磁阀-KEIL C byte_read sector_erase unsigned char byte_program unsigned char byte_program_and_verify unsigned char Compare

这是原创的基于PIC16F877A单片机的读SD卡文件系统程序源代码-This is the original PIC16F877A microcontroller-based SD card file system read source code

SAMSUNG S3C6410 CPU BSP for winmobile6-SAMSUNG S3C6410 CPU BSP for winmobile6

用C8051F040实现I2C通信的范例。可实现E2PROM的存取。-I2C communication with the C8051F040 implementation examples. Can be realized E2PROM access.

M68HC08 及HCS08系列单片机bootloader引导程序源码、示例-M68HC08 and HCS08 MCU Boot bootloader source, sample