2020 Jun 17, 02:06 PM
Hello All,
I have a pi 4 connected to OSPI board with the pins directly plugged into the board. I have a separate power supply going into the pi, as its a pi4 which draws more power and it either doesn't start or I get the lightening (low power) symbol on startup if I don't supply its own power.
Everything is working well in general, but I'd like to connect the pi via a rainbow cable rather than plug the GPIO pins directly into the board as I've noticed the pi4 gets a bit warm. If I have it via the Rainbow cable I can power a fan on the pi4 to cool it down.
What I wanted to confirm is:
a) is the list of used GPIO pins here still correct? https://rayshobby.net/docs/ospi14_manual.pdf
b) Assuming if I drop the 2 x 5v ports and the earth, is this likely to cause a problem? As I have a separate power supply going in I don't believe it would, but just checking.
Many thanks in advance.
Chris
I have a pi 4 connected to OSPI board with the pins directly plugged into the board. I have a separate power supply going into the pi, as its a pi4 which draws more power and it either doesn't start or I get the lightening (low power) symbol on startup if I don't supply its own power.
Everything is working well in general, but I'd like to connect the pi via a rainbow cable rather than plug the GPIO pins directly into the board as I've noticed the pi4 gets a bit warm. If I have it via the Rainbow cable I can power a fan on the pi4 to cool it down.
What I wanted to confirm is:
a) is the list of used GPIO pins here still correct? https://rayshobby.net/docs/ospi14_manual.pdf
b) Assuming if I drop the 2 x 5v ports and the earth, is this likely to cause a problem? As I have a separate power supply going in I don't believe it would, but just checking.
Many thanks in advance.
Chris