论文部分内容阅读
１设计方案 录音机采用爱华ＰＸ３８７型轻触单放机，微机发出控制信号通过ＲＳ２３２串口通信，串并转换电路将信号送到单放机的逻辑控制电路实现各种动作。通过声卡，还可实现声音录入。系统框图如图１所示，电路原理图如图２所示。１．１单放机线控电路 系统采用的轻触开关?
1 design program Epworth uses Aihua PX387 touch single player, the computer sends a control signal through the RS232 serial port communication, serial and parallel conversion circuit signal to the single-machine logic control circuit to achieve a variety of actions. Through the sound card, but also to achieve voice input. System block diagram shown in Figure 1, the circuit diagram shown in Figure 2. 1.1 Single put the line control circuit system using the touch switch?