I had started the Pynq Z1 3 times, having had it up and running at maximum 20min, the fourth time I try to start it.. nothing.. I mean no red led, no nothing. Changed jumpers from REG to USB and powered up, momentarily, then it rebooted again. So it was now stuck in a boot loop. I lose the debug port at reset, so I had to connect manually an instance later, trying to log what is happening and why it's rebooting.
It seems it reboots at random point during startup, sometimes, it survives all the way to login, only to reboot seconds later. I've trying USB power from my laptop, USB hub (external power) and my laptops docking station.. same behaviour. (Reflashed the sd card.. same behaviour)
So I went back to investigating why the external power supply (OEM) wouldn't give power to the board. (I measured on power supply pin and it's 12V)
I found this that IC25 doesn't look too well. How could this happen?
Does anybody know if this IC25 has anything to do with the power supply or if I'm facing multiple problems here?
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nickcamel
I had started the Pynq Z1 3 times, having had it up and running at maximum 20min, the fourth time I try to start it.. nothing.. I mean no red led, no nothing. Changed jumpers from REG to USB and powered up, momentarily, then it rebooted again. So it was now stuck in a boot loop. I lose the debug port at reset, so I had to connect manually an instance later, trying to log what is happening and why it's rebooting.
It seems it reboots at random point during startup, sometimes, it survives all the way to login, only to reboot seconds later. I've trying USB power from my laptop, USB hub (external power) and my laptops docking station.. same behaviour. (Reflashed the sd card.. same behaviour)
So I went back to investigating why the external power supply (OEM) wouldn't give power to the board. (I measured on power supply pin and it's 12V)
I found this that IC25 doesn't look too well. How could this happen?
Does anybody know if this IC25 has anything to do with the power supply or if I'm facing multiple problems here?
Thanks!
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