Re: #QMX 3.3V Supply won't come up -- HELP! #qmx
开云体育I tried powering the 3.3V line direct from my test power supply with a 250mA limit. Went into current limit immediately. Guess the CPU is slagged. :-( Still don't know what I did, either! Sad Paul. On 8/26/23 15:50, Paul - AI7JR via
groups.io wrote:
LIN_REG_EN doesn't start at 12 V, it's staying at 0.7 volts, so the 3.3 V rail never gets power and the uP never starts. Pull up is working, no short to ground, on this line. |
Paul - AI7JR