dsp2407控制步进电机进行画图控制，可同时由正位机和上位机控制，下位机采用按键和液晶交互，上位机采用串口控制，按键由周立功7290控制，与dsp之间采用I2C通信，液晶为t6369,内有详细操作说明。-dsp2407 control the stepper motor for drawing the control, both the anteroposterior and PC machine control, machine keys and lower liquid crystal i

DSP2407模拟I2C总线与7290进行I2C通信，7290为周立功公司生产的LED与按键控制芯片。-DSP2407 analog I2C bus for I2C communication with the 7290, 7290 for the ZLG production of LED and button control chip.