这取决于电机转速的PWM，PWM有T和T，T有…

低功耗测温系统，基于MSP430F169的低功耗测温系统加实时时钟DS1302-Low-power temperature measurement system, based on MSP430F169 low power real-time clock DS1302 temperature measurement system increases

FreeRtos Source code Version 4.04

Protel 99SE格式的ARM9的原理图，是学习ARM9的硬件系统的必备资料。-Protel 99SE format of the schematic diagram ARM9, ARM9 learn the essential information on the hardware system.

在89C51芯片上运行，采用两个中断方式，一个外部0中断实现救护车通行，南北红灯10秒后恢复中断前状态，另一个是定时器0中断实现南北灯状态转换，16X16 LED点阵对应显示“南北”字样信息-89C51 chip in operation, interruption of the use of two methods to achieve an external 0 interrupt the passage of ambulances, the North-South red light 10 seconds after the resumption of state, and the other is the timer 0 interrupt to achieve the state of North-South light conversion, 16X16 LED dot-matrix corresponding show " South-North" in the information

摩托罗拉公司发布的QL4的Lin总线kit,freescale网站上花钱买的--QL4 s Lin bus kit from Motorola. It was bought from freescale website.

zigbee协议栈的堆内存管理详解,详解接收了zigbee osal 的堆栈内存管理-the decipher of the zigbee osal stack

I2C Digital Temp.Sensor & Thermal Watchdog

Boot log for Kiss DP-450 (Sigma EM8500 based player)

WebCam Viewer Camera Server Version 1.0.5 Chipsbrain Engineer Final Release -Address WebCam Viewer Camera Server Version 1.0.5 Chipsbrain Engineer Final Release

应用背景 单片机通过CH375链接USB口的打印机 // 单片机通过CH375控制USB打印机  // 程序示例,C语言,CH375中断为查询方式,只负责数据传输,不涉及打印格式及打印描述语言  // 另可提供多台计算机共享一台USB打印机的方案  // 以下定义适用于AVR 单片机,其它单片机参照修改,为了提供C语言的速度需要对本程序进行优化  关键技术 /* PORTB |= 0x08;  // 输出A0=1  PORTA = mCmd;  // 向CH375的并口输出数据  DDRA = 0xFF;  // 并口D0-D7输出  PORTB &= 0xF9;  // 输出有效写控制信号, 写CH375芯片的命令端口, A0=1; CS=0; WR=0; RD=1; DDRA = 0xFF;  // 该操作无意义,仅作延时,CH375要求读写脉冲宽度大于100nS  PORTB |= 0x07;  // 输出无效的控制信号, 完成操作CH375芯片, A0=1; CS=1; WR=1; RD=1;  DDRA = 0x00;  // 禁止数据输出  PORTB &= 0xF7;  // 输出A0=0; 可选操作  */