- 4 -
figure below):
Note: This USB cable is a USB enhanced cable specially customized by our company, which can ensure that the
download can be successful when directly powered by USB. On the market, some relatively low-quality two-end
male USB cables have too much internal resistance and cause a large voltage drop (for example, the voltage of the
USB when it is empty is about 5.0V. When using a low-quality USB cable to connect U8W/U8W-Mini/U8 /U8-Mini,
the voltage to our download board may drop to 4.2V or lower, causing the chip to be in a reset state and fail to
download successfully).
(2) The download cable connecting U8W/U8W-Mini to the user system (ie the connecting cable between U8W/U8W-
Mini and the target MCU on the user board), such as
As shown below:
U8W/U8W-Mini and
User systems are independent
Power supply cable
U8W/U8W-Mini to
The user's system power supply
wiring
User system gives
U8W/U8W-Mini
Power supply cable
STC8H Series Manual
STC Tool Instruction Manual
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