6by9 wrote: ↑
Fri Dec 06, 2019 4:07 pm
Define it to the GPIO you want and it should work.
Until today I thought that I had killed all my Pi4B GPIOs -- luckily they all do work fine:
https://www.raspberrypi.org/forums/view ... 0#p1581680
So I did get dt-blob.dts from:
https://raw.githubusercontent.com/raspb ... t-blob.dts
Then I copied into dt-blob.18.dts (attached as well) and applied the changes for Pi4B:
Then I did compile using the command you provided previously in this thread:
Then I appended this line:
After reboot of the Pi4B I started raspivid
and captured GPIO18 with logic analyzer.
Unfortunately I do not see hardware camera sync pulses on logic analyzer (same procedure worked for Pi 2B/3B/3B+/3A).
What do I need to do differently to get hwsync pulses show up on GPIO18 for Pi4B?