Sorry Couldn’t search effectively to see if this is already answered.
I can’t figure out the pinout of the 2x22-pin Camera Inputs.
I am looking at Jetson Orin Nano Developer Kit Carrier Board
SP-11324-001_v1.1 | May 2023
Page 18/19/20 have a table containing the J20 and J21 camera pinouts.
The Pin # column tells where each signal is assigned.
The Jetson Orin Nano Dev Kit Carrier Board pins do not match the Raspberry Pi 5 pinout.
In fact, they are exactly numerically reversed.
Can members here teach me what is going on here?
Please refer to the P3768_A04 schematic for the pinout of J20 and J21. Jetson Orin Nano Developer Kit Carrier Board Reference Design Files
Smart to look at the Jetson Orin Nano Developer Kit schematic.
(Schematic is nice. Tastefully drawn.
Carrier Board document is also nice.
And they match!)
Specifically, Orin Nano Dev Kit schematic shows 3.3V is on Pin 1.
The Raspberry Pi 4 schematic shows that 3.3V is on pin 15 (pin 22 on Raspberry Pi 5?)
Pin 1 is Ground. Mismatch.
I see discussions where the Raspberry Pi camera is used with the Orin Nano Developer Kit.
How is this possible? I don’t see mention of a cable adapter.
The only explanation I can imagine when the pins don’t match is that somehow the cable pins are numbered differently.
Here is a picture of the cable I use, conductor metal UP, metal nearest me.
I numbered the cable using Raspberry Pi numbering.
Cable is draped away from me, with conductors towards me, metal up.
Raspberry Pi calls the leftmost conductor PIn 1.
Can someone compare the pin numbering I have with the numbering NVidia uses on this Starter Kit?
NVidia will use a 22 pin cable, but the leftmost pin should be Ground for both pin numberings.
The Raspberry Pi boards don’t contain any Pin 1 marking. Bummer.