Queries related to GPIO functionality

sabin.john
Posts: 7
Joined: Thu Dec 03, 2020 11:53 am

Queries related to GPIO functionality

Postby sabin.john » Sat Feb 06, 2021 12:56 pm

Hello,
We are planning to use the ESP-32 chip for a project. I had a few queries regarding the pinouts.
1. For our hardware we are not using any PSRAM. So can we use pins GPIO 16 and 17 as general i/o pins?
2. We are using an external flash GD25Q32CTIGR. Can we use the pins gpio 9 and gpio10 as general i/o pins or should they be connected to flash for HD and WP signals?
Your inputs will be helpful!

Regards,
Sabin

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