lpc210x系列arm7 中pwm函数功能：MAT3.0输出PWM波形,由于LPC2103没有单独的PWM通道，跟匹配通道复用,调试：改变占空比。用示波器测量-lpc210x series arm7 in pwm Function: MAT3.0 output PWM waveform, the LPC2103 is no separate PWM channels, with the matching channel reuse, debug: changing the duty cycle

From mat to C++ so and modified rucescode.