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From the C4GX DevKit Reference Manual, table 2-8 Board-Specific LEDs: "D1 PSNTN A
Green LED. Illuminates when the HSMC port A has a board or cable
plugged-in such that
pin 160 becomes grounded. Driven by the add-in
card."
So your daughter board should connect the PSNTn pin directly to the GND.
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I see.. I appreciate very much.
I think this might be one of the possible reason of why the MAXII burned.
Because at the daughter card, I am actually supplying voltage to the HSMA_PSNTn line into C4GX dev kit.
However, since this HSMA_PSTNn also connecting to C4GX FPGA, I affraid the FPGA might have already burned as well. I need to check on that.
By the way, what is the function of EPCS128 used for?
Because I detected that my voltage supply of 3.3V from LTC3850 is shorted and I identified that EPCS uses 3.3V supply. I affraid this IC is damaged too. May I know what's the function of this IC?
thank you.
Thank you again.
Honored Contributor
