基于PowerPC的数模转换输出及脉宽调制接口扩展

The Expansion of the Analog Output and the PWM Interface Based on the PowerPc

介绍了PowerPC集成主处理器MPC8349E的性能特点。介绍了数模转换(D/A)接口芯片DAC7624的结构功能。设计了模拟量输出和脉宽调制(PWM)接口扩展的硬件连接,并在硬件平台基础上进行了驱动程序的软件开发。

This paper introduces the integrated host processor MPC8349E of the PowerPC.Also the structure and function of the D/A interface chip DAC7624 is introduced .The hardware of the analog output and the PWM interface expansion are presented,and the driver software is outlined.