BlueTurtle
Active member
Hello everyone,
I have a project that I hook up Teensy 4.0 and a RPi together with a USB cable and was wondering if my setup would cause a mishap.
I have one 24V PSU and two separate 5V buck converters, one going to T4.0 and another to RPi, hence their grounds are connected.(In the future I’ll just make a buck capable of powering both, at this time one can’t do it properly). My question is, the T4.0 and RPi communicate via USB and USB has a ground reference. So would that be a problem for my setup? I believe that since the 5V power supplies share a common ground, RPi and T4.0 are referenced to the same ground and I’m basically connecting two grounds with the current setup. Should I cut the USB cables ground.
*** I’ve already cut the VIN and VUSB trace
I have a project that I hook up Teensy 4.0 and a RPi together with a USB cable and was wondering if my setup would cause a mishap.
I have one 24V PSU and two separate 5V buck converters, one going to T4.0 and another to RPi, hence their grounds are connected.(In the future I’ll just make a buck capable of powering both, at this time one can’t do it properly). My question is, the T4.0 and RPi communicate via USB and USB has a ground reference. So would that be a problem for my setup? I believe that since the 5V power supplies share a common ground, RPi and T4.0 are referenced to the same ground and I’m basically connecting two grounds with the current setup. Should I cut the USB cables ground.
*** I’ve already cut the VIN and VUSB trace