I purchased a picozed 7Z20 and made a custom carrier board for it. I was able to power it on and get the FPGA DONE LED to light up, I was able to program the Zynq chip PL through VIVADO, and I was able to begin programming the PS through vitis. towards the end of downloading my SW to the board I lost JTAG connection and I am afraid my Z720 chip is now dead, it gets instantly hot when powered on and draws around 3x the current it did when I first booted it up.
the board had been on for a fair amount of time, 10 minutes of power cycling it while trying to get it set up on a test bench, probably 5 minutes of me setting up and downloading the PL firmware a couple of times, 20 minutes between then and trying the SW download.
I'm wondering if anyone might have any insight into what went wrong here, Is it possible for the chip to overheat and kill itself?, I don't have any heatsink or fan on the chip but I figured there was some built in thermal protection but maybe I'm wrong. Otherwise, I'm not sure what might have happened if it was working fine. I doubt JTAG programming could fry the chip
