ARM7 s3c44b0x 的电路原理图。 这是一个ARM7 系统的原理图，所有使用芯片都标注的清清楚楚。 共有2个图，这是1-ARM7 s3c44b0x the circuit diagram. This is an ARM7 system diagram, the use of all the chips are clearly marked. A total of two plans, this is a

ARM7 s3c44b0x 的电路原理图。 这是一个ARM7 系统的原理图，所有使用芯片都标注的清清楚楚。 共有2个图，这是2-ARM7 s3c44b0x the circuit diagram. This is an ARM7 system diagram, the use of all the chips are clearly marked. A total of two map, which is 2

自带定时器产生PWM,非常稳定而且方便，加了标注，便于理解和移植-creat PWM by the timmer， it is very steable, I use it to control one moter, it is very nice to move

实现了ESP8266模块软串口通讯，引脚标注已经在代码中注明(The soft serial communication of ESP8266 module has been realized)