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ch340e and fpga has different power rail #2

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zzsczz opened this issue Oct 16, 2023 · 1 comment

zzsczz commented Oct 16, 2023

ch340e and fpga has different power rail.
ch340e is powerd by 3.3V
fpga 's io bank is powered by 2.5V

voltage shifter circuit may be needed for this design

Owner

WangXuan95 commented Jan 13, 2025

This is forbidden in a product-level designs, but not in a demo-level designs.

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