New Contributor
ContributorHi JunL,
For further step on device level root analysis, there are a few information that we would like to have if possible.
1) We would like you to erase and reprogram the Cyclone 3 to get the checksum value then we will compare with the mfg checksum value.
2) Is there any electrical functional issue on the Cyclone 3?
3) Is it possible for you to share the identity of the end customer?
It would help us if you can provide those above information but if cannot then you can inform us back.
Thank you.
New ContributorHi,
Please see the highlighted test in red below:
1) We would like you to erase and reprogram the Cyclone 3 to get the checksum value then we will compare with the mfg checksum value.
NW: Sorry, but the two defective devices are no longer on a board, and we do not have a jig for programming FPGAs stand-alone. This could be done by Intel support anyway on receipt of the devices.
2) Is there any electrical functional issue on the Cyclone 3?
NW: One FPGA shows a repeated reset at about 45°C device temperature (actually measured on the PCB, so temperatures could be different by +/- 5°C), below this temperature, the device performs normally.
The other FPGA doesn’t operate at all. Therefore, JTAG is also not working.
Again, the other circuitry on the 2 control boards did not show any problem, and both boards did work right after replacing the defective FPGA with new ones. So, the evidence is very likely pointing to a problem within the two FPGA ICs.
3) Is it possible for you to share the identity of the end customer?
NW: Unfortunately, we cannot share the end-customer information. All we can state is that it is for the commercial use.
Thank you.
JunL
