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Ms_G's avatar
Ms_G
Icon for New Contributor rankNew Contributor
3 years ago

Quad SPI flash IO Voltage

Hi, I am using winbond quad spi flash - all 4 flash IOs are connected to Cyclone 10 FPGA. 2 IOs are connected to Bank 1, which is at 2.5VDC level 2 IOs are connected to Bank 8, which is at 3.3VD...
Fpga Devkit
EthanLi's avatar
EthanLi
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

If you use Vccio 2.5V for bank 1 and add a voltage translator between flash and FPGA IO, it would be OK for the hard ware.

But since we do not suggest to configure by this way, I am not sure if there could be any other configuration issue, timing or compile errors.

I suggest to use the 2.5V IOs in the other banks and leave the bank 1 as 3.3V powered.

Thanks,

Ethan