Hi, we are developing a project, and I thought the Cora-Z7-07S was the right solution, so we got 3. Now, as I'm building up the project, I hit a wall. Some of the GPIOs I need to control are 1.8V logic, not 3.3V. I thought I could just tweak the constraints and be done, but no, you can't mix the voltages on the same IO bank, and it appears all the interfaces (included the unloaded ones) are on 3.3V banks! Is there a similar small board that I should get instead, or do I need to start hacking in level shifting?
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Marty Ryba
Hi, we are developing a project, and I thought the Cora-Z7-07S was the right solution, so we got 3. Now, as I'm building up the project, I hit a wall. Some of the GPIOs I need to control are 1.8V logic, not 3.3V. I thought I could just tweak the constraints and be done, but no, you can't mix the voltages on the same IO bank, and it appears all the interfaces (included the unloaded ones) are on 3.3V banks! Is there a similar small board that I should get instead, or do I need to start hacking in level shifting?
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