Line HW_VS on the schematics GO_Advance

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Rumb
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Line HW_VS on the schematics GO_Advance

Post by Rumb »

Why is the line HW_VS included in the AIN[1..0] array, but the line AIN1 is not included in the AIN[1..0] array (see below)? If this is a typo, then how was the PCB layout according to the "ODROID_GO_ADVANCE_rev1.1.pdf" schematics? Or is a different proprietary schematics used for PCB?
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Re: Line HW_VS on the schematics GO_Advance

Post by odroid »

The bus entry mark seemed to be wrongly placed. But the connection net information is correct.

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Re: Line HW_VS on the schematics GO_Advance

Post by Rumb »

Well. Thanks for the explanation. But maybe two pull-up resistors are still missing in the ODROID-GO-ADVANCE schematics (see below)? Or are this resistors not needed, since the absence is confirmed by practice?
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Re: Line HW_VS on the schematics GO_Advance

Post by odroid »

Some GPIO pins have configurable internal pull-up/down resistors.
You should look into the driver source code first before asking.

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