at91sam7s应用 代码说明： 1)完成基本的初始化 2)初始化PIO等 3)驱动板上的四个按键(PB1,PB2,PB3,PB4) 4)初始化DEBUG口，Usart1等 5)初始化定时器timer0,timer1等-at91sam7s application code : 1) completion of the basic initialization 2) initialization three PIO) driver board the four

PB375 U盘读写汇编程序 性价比超高的U盘读写模块-PB375，兼容CH375读写操作 -PB375 U disk read and write assembler cost-effective ultra-high U-disk read-write module-PB375, read and write compatible with the operation CH375

用AVR单片机直接控制其步进电机，c语言写成，用mege8L的PB0-PB3连接步进电机的四个接线端！该步进电机的转矩很小，强烈建议不要将其从底座上拆下！！！否则没有轴承支撑，摩擦力太大，转不起来！-AVR with direct control of its single-chip stepper motor, c language, and PB0-PB3 of mege8L to connect the four stepper motor terminal! The small torq

atmega48制作的电动车里程表，PB0 PB1 口用作上下按键 PB3为圈数脉冲 脉冲输入用霍尔44E作为脉冲输入，PD作为4位数码管显示端口，有3种显示模式速度、里程、车轮周长-the atmega48 produced electric car odometer, PB0 PB1 used as the up and down buttons PB3 input pulse pulse of the number of laps with Hall, 44E as a pulse inp