random-mirrors/easytarget-MQ-Pro-IO
1
0
Fork 0
mirror of https://github.com/easytarget/MQ-Pro-IO.git synced 2026-01-26 04:43:22 +00:00
Code Issues Packages Projects Releases Wiki Activity

pin function notes

Browse Source
This commit is contained in:
Owen
2024-05-06 23:00:43 +00:00
parent e751f7b40c
commit 0e57ed326c
7 changed files with 72 additions and 72 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
precompiled-trees/README.md
View File

@@ -1,10 +1,6 @@
# Precompiled device trees:
Each folder contains a `.dtb` file, which is the compiled device tree itself, plus a `.dts` with the original source and a `.gpio` file showing the GPIO pin mappings.
The tool/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..
* You therefore need to reference the D1 pin mapping table to get the exact functions for pins.
* A copy of this table is available here: [reference/d1-pins.pdf](../reference/d1-pins.pdf)).
## Generic
[The generic device tree I will use in my project, suitable for many occasions](./generic)
@@ -46,6 +42,10 @@ In the [tools](../tools) folder there is a python script called `list-pins.py`.
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..
* 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.
# Install the Device Tree
Installing is, in principle, simple.