I’m having issues with booting up the Jetson on our carrier board that followed the P2822 dev kit design. All signals (VDDIN_PWR_BAD_N, MODULE_POWER_ON, CARRIER_POWER_ON and SYS_RESET_L) coming to and from the Jetson in terms of startup act as expected (i.e.):
VDDIN_PWR_BAD_IN: 5.0 V when main Jetson supplies to SYS_VIN_HV and SYS_VIN_MV are stable
MODULE_POWER_ON: 1.8V (Does this absolutely need to be 3.3V for power button MCU case? What is the cutoff?)
CARRIER_POWER_ON: 3.3V from Jetson pin L62
SYS_RESET_L: 1.8V, so it comes out of reset.
My greatest confusion is that CARRIER_POWER_ON is asserted from the Jetson indicating that it is in fact on. Is there a chance it is in some state where even though it is not in reset and CARRIER_POWER_ON is asserted it does not boot up? I can’t explain how the GPU can be out reset and carrier power be asserted yet there is no console or even fan response.