使用LPC213X系列单片机产生PWM方波~通道、频率、占空比可调~不同频率均在定时时间上进行了校准~我使用的是11.0592M晶振，Hz单位，范围可达10-5-Use LPC213X MCU PWM square wave- generated channel, frequency, variable duty cycle- different frequencies were calibrated on a regular time- I am using 11.0592M crystal,