During project debugging, RS485 and TX and RX interfaces are always used. I made a board, used FT232RL to convert USB to serial port, and added an RS485 interface.
5V direct USB output, 3.3V uses LM1117-3.3V to increase the load capacity, and does not use the FT232's own.
The board has been updated. The prototype board has IO port level conversion, and later the 3.3VIO port level was directly selected.
The communication baud rate can be set to a maximum of 3000000 for normal communication.
A USB_TYPEC interface has been added, which can be extended using a typec data cable. It does not have the same end face of USBA, so you can adjust it yourself if necessary.
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