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微处理器开发 handshake checker and it is used in the design of USB or other material ,it is a simple one on the a
handshake checker and it is used in the design of USB or other material ,it is a simple one on the acadimic level
单片机编程 基于CH341A的USB串口通讯设计
为解决当前计算机串行通讯接口只有USB，难以满足旧型号设备或某些单片机要求RS232通讯的问题，设计出两款RS232/USB电路。采用CH341A与MAX223集成电路芯片构建标准9线RS232/USB通用接口转换器，无需编程。采用CH341A与PIC16F877A构建单片机与计算机之间的USB通讯电路，软件遵循RS232通讯协议，硬件进行电平转换。实际使用表 ...
其他书籍 Full compliance with the USB Specification v1.1 and USB CDC v1.1 Support the RS232 Serial interfa
Full compliance with the USB Specification v1.1 and USB CDC v1.1
Support the RS232 Serial interface
Support automatic handshake mode
Support Remote wake-up and power management
256 bytes buffer each for upstream and downstream data flow
Support default ROM or external EEPROM for device configur ...