he LPC932 can be used to create a Pulse Width Modulated PWM signal. That s an analog signal, with only 2 discrete levels, for example 0V and 5V and a constant period. The current value of this signal at a certain poiTnt of time is proportional to its

本程序主要是单片机控制的DC—DC开关电源系统的软件设计。 闭环反馈控制功能：在开环控制的基础上，设置一个反馈控制触发按键，该按键按下时，启动闭环控制程序，将电源输出电压反馈到单片机中，并由闭环算法调整输出矩形波的占空比，使得重新输出的电压与数码管显示电压误差减小。-A DC-DC system controlled by single chip, including the realization of the hardware as well as the software of the

msp430g2553// Descr iption: A single sample is made on A10 with reference to internal // 1.5V Vref. Software sets ADC10SC to start sample and conversion - ADC10SC // automatically cleared at EOC. ADC10 internal oscillator/4 times sample // (64x