The PG signal does not assert by default on early ZC702 boards. To be FMC compliant, the PG signal must be asserted when power rails are good.
To resolve this issue, the firmware in the ZC702 TI controllers should be updated. The TI Firmware update process takes no more than five minutes to complete. Use a TI USB pod (USB Interface Adapter EVM) and the TI Manufacturing GUI to update firmware in the ZC702 TI controllers, as follows:
NOTE: If there a problem reading back the reference voltages after power cycling the board and a "Manufacturing Failed" message appears in the GUI, try power cycling the board again and re-run the script beginning with step 6 above. The process should complete successfully the second time.
If needed, TI USB Interface Adapter EVMs are available at: http://www.ti.com/tool/usb-to-gpio
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