基于DSP控制的USB接口速印机

The Stenograph with USB Interface Based on DSP Control

目前,市场上的大部分速印机的图像处理和电机控制芯片是分立的,并且无电脑直接打印功能。本文介绍一种将图像处理和电机控制功能集成于一片DSP芯片内,并使用USB接口实现电脑直接打印功能的速印机解决方案。其外围电路简单,功能更强大,图像处理算法的升级更方便。

At present, most of the stenographs on the market have separate image processing chip and motor controlling chip, and can＇t print via a computer. This paper presents a solution that integrates image processing function and motor controlling function in a DSP chip and print function via a USB interface on a computer. It has a simpler peripheral circuit, greater functions and convenient upgrade of image processing algorithms.