STC micro STC8A8K64D4 Series Reference Manual page 834

STC8A8K64D4 Series Manual
H.5 USB direct emulation (currently only supported by
STC8H8K64U-B version chip)
H.5.1 Making a USB emulation chip
To make a USB emulation chip, you can use the serial ISP to make it according to the steps in Section 4.1, or use
the USB-ISP method. This section will introduce how to use the USB-ISP to make it.
The setting steps are as follows:
Firstly, connect the target chip to the serial port of the computer as shown in the figure below, and short-circuit
P3.2 to GND through the switch, and then power on the microcontroller.
If "STC USB Writer (HID1)" can be automatically scanned in the ISP software, it means the connection is correct.
Next, in the STC-ISP download software, follow the steps shown in the figure below to set up the emulation chip.
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