C8051F005硬件SPI驱动的AT45DB041B的读写驱动

用单片机构成高精度PWM式12位DA，网上下的，很实用。-with high accuracy microprocessor PWM 12 DA, the Internet and practical.

The sample software includes, common library, peripheral APIs, and test modules for the APIs. The common library include startup file, standard definition and header files, processor specific setup module, generic interrupt related APIs, timer routine, and scatter loading file. The peripheral directories include, GPIO, PWM, Real-time clock, timer, SPI, I2C, Watchdog timer, UART, external interrupt, etc.

This small utility helps to generate seven segment display codes for different I/O connections. For example, AVR/PIC Port A.0 -> D Segment Port A.1 -> B Segment .... Also it can generate Common Cathode or Common Anode table codes.. I Coded it long time ago. I Hope help someone. Thank you

用普通51单片机实现多任务 《RTX51中文版》，KEIL+RTX51实时操作系统的说明.rar-MCU 51 with ordinary multi-tasking RTX51 Chinese version , KEIL+ RTX51 description of real-time operating system. Rar

四相步进电驱程序，能够实现电驱的运转速度的控制。-4-phase stepper electric drive program, to achieve the operation of electric drive speed control.

传感器应用实例电路设计150例，资源共享，敬请使用！-Sensor circuit design application 150 cases, resource sharing, please use!

包括了源代码 keil工程 DXP电路图 和自制文档说明-Including the source code for keil project DXP circuit and self-documentation

ＣＡＮ协议标准设计规范（电梯项目080716）.docＣＡＮ协议标准设计规范（电梯项目080716）.doc-CAN protocol standard design specifications (elevator project 080716). DocCAN protocol standard design specifications (elevator project 080716). Doc

* 功能：运行RTC进行计时，将所时间值不断的通过串口向上位机发送，并把秒的值输出数码管D1 * 上显示。上位机运行EasyARM软件，在串口发送/接收窗口观察。 * 说明：* 通讯波特率115200，8位数据位，1位停止位，无奇偶校验。-* Function: RTC to run for a time, the time value will be constant upward through the serial-bit machine to send, and seconds values D1* output digital tube display. PC running EasyARM software serial port to send/receive window of observation.* Description:* 115200,8 bit baud rate of communication data bits, 1 stop bit, no parity.

读51按键，并将ascii码返回计算机串口调试助手，-Read 51 keys, and return the computer serial port debugging assistant