![]() ![]() CH340 is a USB bus convert chip and it can realize USB convert to serial interface, USB convert to IrDA infrared or USB convert to printer interface. Maybe Microsoft added them to Windows Update but last time I tried the where not in there. I would indeed try the driver from the manufacturers website. But the fact you installed FTDI drivers for it I start to think it's NOT a CH340 but just a Chinese/counterfeit FTDI which will install with the latest FTDI drivers but just will not work. The information on a dedicated self-acting installer. Build software installation guide for Windows Update without problems. On Device Manager, expand Ports, you can find COM-port for CH340. Detail about USB convert to printer interface please referring to the second manual CH340DS2. R232 in CH340 is high-level starts assistant RS232function, only add diode audion resistor and capacitance can replace. The UART interface supports 1 start bit, 5-8 data bits, 1 or 2 stop bits, and odd, even, space or mark parity bits. MBlock 5 cannot identify the serial port after a device is connected to the computer. ![]()
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