Code to test SID (HPD)

A mcp2551 can tranciever is connected on the C D-bus (Center Display?) of my 2003 saab 9-3 Sport Sedan. this code was made to test the Display seperatly from my bluetooth project and better understand the SID protocol.

This is quick Debugging/Reverse Engineering code. So don't expect too much

Hardware

I am using the hardware form the BT-AUX-ICM project

saab-93NG-bluetooth-aux-icm

03-06 SID/HPD/CD-bus

Some of the HPD bus is known

links:

• LeighLeighLeigh:

  saab-93NG-HPD-hacker

  edited version in this repo

• TrionicTuning forum:

  https://www.trionictuning.com/forum/viewtopic.php?f=46&t=10679

  And other topics I did not immediatly think of.