tenbaht
commented
6 years ago Whow, that looks amazing! I am looking forward to see the first prototypes!
- I really like the pin mapping. I don't see a way to get closer to the original mapping than this. Used like this, the functional mapping makes sense.
- Implementing the serial interface clearly calls for bootloader support. Somewhere I have read about such a project, but I never looked into it. It would be extremely useful to integrate that here.
Additionally, I wrote some comments regarding the hardware design to your repository.
I spent the last couple of weeks designing this sduino UNO board (hope you are okay with me shamelessly borrowing the name). Now I wanted to ask for opinions on the pin mapping I came up with.
My approach was to try and find as good a function mapping as possible while keeping everything that used to be in a particular AVR port register in one STM8 port register, since this allows for more compatible parallel IO.
It would especially be nice to find a harmonized pin mapping for this STM8S105K6 board and the STM8S105K4 board mentioned in Issue #17 before I get the PCBs manufactured and to hear whether you think that anything about my current pin mapping looks like a silly idea.
EDIT:
I will probably give AREF (i.e. PF4/A12) the pin number 22, change IO14 to pin number 23 and assign pin number 24 to the hardware-SS pin. I forgot that
pins_arduino.hreserves pin numbers 14-21 for A0-A7.Btw.: I only plan to build about 10 boards myself. Others can obviously do as they like.