本文分析了I2C串行总线的数据传输机制,采用硬件描述语言verilog在行为级描述了I2C总线控制器在FPGA上的实现。给出了音频编解码芯片WM8731的配置模块IP核。根据设计流程,对程序进行了前仿真和调试,结果表明符合I2C串行总线的协议要求...本文分析了I2C串行总线的数据传输机制,采用硬件描述语言verilog在行为级描述了I2C总线控制器在FPGA上的实现。给出了音频编解码芯片WM8731的配置模块IP核。根据设计流程,对程序进行了前仿真和调试,结果表明符合I2C串行总线的协议要求。并在Quartus II 6.0开发环境下进行了综合,后仿真和下载。展开更多
Real-time digital audio processing plays a crucial role in modern electronic systems,such as mobile devices,communication platforms,and multimedia applications.However,ensuring high-performance,low-latency processing ...Real-time digital audio processing plays a crucial role in modern electronic systems,such as mobile devices,communication platforms,and multimedia applications.However,ensuring high-performance,low-latency processing under hardware constraints remains a significant challenge,particularly when integrating audio codec chips with FPGA platforms.This paper presents the design and implementation of a real-time digital audio processing system using field-programmable gate array(FPGA)technology and the WM8731 audio codec.Firstly,a robust Inter-Integrated Circuit(I2C)interface is developed to configure the WM8731 codec,ensuring accurate initialization and stable operation.Secondly,a serial-to-parallel adaptor(s2p_adaptor)is designed to convert inter-IC sound(I2S)serial audio data into parallel format for digital processing,synchronized with bit and frame clocks.Finally,an 8-tap finite impulse response(FIR)filter is implemented using very high speed integrated circuit(VHSIC)hardware description language(VHDL)to enhance audio quality by suppressing high-frequency noise.All modules are synthesized in Quartus II and verified through ModelSim simulations and practical testing on an Altera DE1 development board.Timing diagrams based on the WM8731 datasheet and internal clock signals ensure precise synchronization.Experimental results demonstrate the effectiveness of the system,while final analysis highlights areas for further optimization and future improvements.Beyond audio applications,the proposed architecture is also adaptable to other real-time signal processing tasks,such as biomedical monitoring,radar front-end filtering,and image preprocessing.This extensibility enhances the system’s relevance in broader embedded and communication contexts.展开更多
文摘本文分析了I2C串行总线的数据传输机制,采用硬件描述语言verilog在行为级描述了I2C总线控制器在FPGA上的实现。给出了音频编解码芯片WM8731的配置模块IP核。根据设计流程,对程序进行了前仿真和调试,结果表明符合I2C串行总线的协议要求。并在Quartus II 6.0开发环境下进行了综合,后仿真和下载。
基金supported by the Major Scientific Instruments and Equipments Development Project of the National Natural Science Foundation of China(No.62427809)the National Natural Science Foundation of China(Nos.62372248,62302235,and 62402241)+2 种基金the Key Program of Natural Science Foundation of Jiangsu(Nos.BK20243053 and 24KJA520006)the Natural Science Foundation of Jiangsu Province(No.BK20230352)the Postgraduate Research&Practice Innovation Program of Jiangsu Province(No.SJCX240316).
文摘Real-time digital audio processing plays a crucial role in modern electronic systems,such as mobile devices,communication platforms,and multimedia applications.However,ensuring high-performance,low-latency processing under hardware constraints remains a significant challenge,particularly when integrating audio codec chips with FPGA platforms.This paper presents the design and implementation of a real-time digital audio processing system using field-programmable gate array(FPGA)technology and the WM8731 audio codec.Firstly,a robust Inter-Integrated Circuit(I2C)interface is developed to configure the WM8731 codec,ensuring accurate initialization and stable operation.Secondly,a serial-to-parallel adaptor(s2p_adaptor)is designed to convert inter-IC sound(I2S)serial audio data into parallel format for digital processing,synchronized with bit and frame clocks.Finally,an 8-tap finite impulse response(FIR)filter is implemented using very high speed integrated circuit(VHSIC)hardware description language(VHDL)to enhance audio quality by suppressing high-frequency noise.All modules are synthesized in Quartus II and verified through ModelSim simulations and practical testing on an Altera DE1 development board.Timing diagrams based on the WM8731 datasheet and internal clock signals ensure precise synchronization.Experimental results demonstrate the effectiveness of the system,while final analysis highlights areas for further optimization and future improvements.Beyond audio applications,the proposed architecture is also adaptable to other real-time signal processing tasks,such as biomedical monitoring,radar front-end filtering,and image preprocessing.This extensibility enhances the system’s relevance in broader embedded and communication contexts.
