嵌入式SoC中PWMIP核的设计实现

Design and Implementation of PWM IP Core in Embedded System-on-Chip

利用PWM可以简单方便地扩展语音功能。系统阐述了一种用于嵌入式SoC中的PWMIP核的功能和结构,采用Verilog硬件描述语言实现各子模块的设计,利用VCS工具进行仿真和验证,并详细介绍了录音回放模式的FPGA板级测试过程。该PWMIP核主要用于产生高质量的声音和音调,已经成功应用于一款嵌入式微处理器芯片中,并通过实际的流片和测试。

It is simple and convenient to use PWM to add speech function. This paper presents the function and architecture of PWM IP core used in embedded system - on - chip. The sub - module circuit is implemented using Verilog hardware description language,simulated and verified with the EDA tools VCS. Then we introduce the FPGA board test course of playback mode in detail. The PWM IP core is mainly used to produce good sound and tone. It has been already applied in an embedded microprocessor chip.