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iul
- 8.1 可编程并行接口芯片8255A 8.2 可编程定时器/计数器芯片8253/8254 8.3 串行通信及可编程串行接口芯片8251A 8.4 模/数(A/D)与数模(D/A)转换技术 及其接口 -8.1 programmable parallel interface chip 8255A8.2 programmable timer/counter chip 8253/82548.3 serial communications and programmable seri
8254timer_pulse_generated_PWM_pulse
- 8254定时器产生PWM脉冲,非常偏却是机器人舵机控制的关键点-8254 PWM timer pulse generated
transducer
- 以单片机AT89S52和定时器8254控制HEF4752生成SPWM波来控制主功率电路输出电压、频率均可变的三相交流电,并实现变频器功能设定、变频操作、频率显示。采用MCS-51指令编写,使用Keil uVision3编译调试。-Use MCU AT89S52 and timer 8254 to control HEF4752 generate SPWM wave to control the main power circuit to output three-phase AC, whose