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全数字化语音系统的设计。该系统用DSP芯片TMS320F206对MSM6588语音芯片进行录音、放音控制,用FLASH存储器AM29F040B进行语音数据存储,用差分线驱动器和接收器SN75LBC180在RS-485总线网络上传输语音数据。该语音系统结构简单、功能可靠,从而满足了全数字化语言教学实验室对学生机单元提出的要求。
Design of a fully digital voice system The system uses DSP chip TMS320F206 to record and control the MSM6588 voice chip, and uses AM29F040B FLASH memory to store voice data. The differential line driver and receiver SN75LBC180 transmit voice data over the RS-485 bus network. The voice system is simple in structure and reliable in function, thus meeting the requirements of the all-digital language teaching laboratory for the student machine unit.