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@ -63,7 +63,6 @@ If you have errors rebooting (maybe a corrupt file if you rebuilt it etc..) you
As a last resort you may have to remove the SD card, mount the `/boot` partition and edit `grub/grub.cfg` there.
* !! The 'default' dtb supplied by ubuntu should always be softlinked as `/boot/dtb`, so putting `devicetree /boot/dtb` in grub in place of the custom `.dtb` should work and is predictable (no version numbers etc).
*
## Examining the DTB pin mappings:
In the [tools](../tools) folder there is a python script called `list-pins.py`.
@ -71,7 +70,7 @@ To run it you need to be in that directory, then run:
`python3 list-pins.py MangoPi-MQ-Pro`
* This produces the same map I use in the documentation and `.gpio` files in the folders above.
* The data used to assemble the `.gpio` map files identifies which interface a pin is attached to, but not it's specific function for the interface.
* eg it can say 'pinX and pinY are mapped to a UART', but cannot identify which pin is the TX and which is the RX for it; a limitation of the data, my apologies..
* eg it can say 'pinX and pinY are mapped to UART2', but cannot identify which pin is the TX and which is the RX; a limitation of the data, my apologies..
* You therefore need to reference the [D1 pin mapping table](../reference/d1-pins.pdf) to get the exact functions for pins when running this for yourself.
* The `.gpio` files uploaded here *have* been manually edited to note full pin function for convenience.