AT89C51 单片机L298驱动电机，控制2个12V 直流电机。求PWM 调速的C程序，电路图，电机正反转C程序，流程图-AT89C51 microcontroller L298 drive motor, control two 12V DC motors. PWM speed control of C seeking procedures, schematics, motor reversing C program, flow chart

直流电机驱动芯片采用Ｌ２９８．支流电机驱动就是利用ＰＷＭ脉宽控制Ｌ２９８电流输出大小，从而达到控制电机的目的-Motor Driver IC using L298. Tributaries is the use of motor-driven PWM pulse width control L298 current output size, so as to achieve the purpose of the electrical control-DC motor driver chip L2

键盘控制直流电机正、反转程序，P2.2至P2.6接5个对地键，作为：顺时针、逆时针、停止、加速和减速按键。 P1.0、P1.1接L298的IN1、IN2。P1.2接EN，也就是PWM输出口。 -Keyboard to control DC motor, reverse the process, P2.2 to P2.6 received five pairs of ground key as: clockwise, counterclockwise, stop, acceleration a