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发表于 2007-1-16 21:35:44
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Royalty-free Virtual COM Port (VCP) device drivers provided by Cygnal allow a CP2101-based product to appear as a COM port to PC applications. The CP2101 UART interface implements all RS232 signals, including control and handshaking signals, so existing system firmware does not need to be modified. In many existing RS232 designs, all that is required to update the design from RS232 to USB is to replace the RS232 level-translator with the CP2101. |
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