GPIO naming discrepancy in documentation
Demboys
New Member Posts: 3 ✭
In the document "UP Squared Pro 7000 (UPN-ADLN01) Manual 2nd Ed.pdf" taken from up-shop download section, GPIOs naming for HAT(CN17) correspond with the BIOS.
In the document "UP40pin_BoardsMapping.xlsx" taken from the Wiki, GPIOs have a different numerotation and some "Alt Function Type" also diverge. When we try to use GPIOs, they seem to match with this naming scheme. For exemple, to activate the PIN26 which would be GPIO23 in the Manual and BIOS, we have to activate GPIO7 which match with the Excel file.
This issue causes some headaches with the use of the Alt functions on a custom daughter board. How can we know that we use the right pins for these functions without conflicts when nothing matches with documentation?