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Attenuator MISO level resistance. #97

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jordens opened this issue May 31, 2021 · 2 comments
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Attenuator MISO level resistance. #97

jordens opened this issue May 31, 2021 · 2 comments

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@jordens
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jordens commented May 31, 2021

The attenuator is driving 5V into 1k5 + 50R and then MISO of the 3.3V CPU.

image

1mA injected into the power rails still seems significant.
Can we increase that R41 resistance a bit to 10k? No need for speed. It's a slow bus.

c.f. #81
@jordens jordens mentioned this issue Jun 7, 2022
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@gkasprow
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done

@gkasprow
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image

@gkasprow gkasprow mentioned this issue Jul 28, 2022
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@jordens @gkasprow