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STM32F407VGT6精确脉冲控制步进电机源码,采用STM32F407VGT6芯片，抛弃单脉冲输出方式，直接使用普通PWM输出方式精确输出脉冲个数，每个脉冲都可以改变频率和占空比。PWM+中断，简单粗暴。#include "sys.h"#include "delay.h"#include "pwm1.h"#include "pwm2.h"#include "pwm3.h"//注释见pwm1.c文件extern int count2;int m ...

Research on microwave power amplififiers has gained a growing importance demanded by the many continuously developing applications which require such subsystem performance. A broad set of commercial and strategic systems in fact have their overall performance boosted by the power amplififier, the la ...

本文主要针对CCD相机中的数据采集、传输及显示的需要，设计了基于USB的相应系统。该系统设计工作包括硬件和软件两个部分，硬件部分选用了Cypress公司的CY7C68013A作为USB通讯芯片，负责接收由A/D转换得到的图像数据，并通过其实现与PC机之间的USB数据通信。本系统设计的主要工作难点是系统软件的设计，包括固件程序、USB驱 ...