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GordWait's avatar
GordWait
Icon for Occasional Contributor rankOccasional Contributor
2 months ago

Cyclone VGT Dev Kit boards - some new boards failing to boot from NOR Flash

We've been using these boards for years, having certified them for use in one of our products. In the last few months we have now received 5 of these boards and they fail to configure from NOR flash...
Board Debug
Fpga Devkit
FakhrulA_altera's avatar
FakhrulA_altera
Icon for Regular Contributor rankRegular Contributor
2 months ago

Hi,

Thanks for the detailed information and for outlining the debug steps taken.

From our side, there are known changes in the RevB board (including NOR flash device and routing), and there is a related knowledge base article that may be relevant to what you are seeing:

  • Why can’t I access the EPCQ flash device on the Cyclone V GT FPGA Development Kit (DK-DEV-5CGTD9N-B)?
    https://community.altera.com/kb/knowledge-base/why-cant-i-access-the-epcq-flash-device-on-the-cyclone®-v-gt-fpga-development-ki/344352

Before concluding this is the same root cause, could you help confirm a few points:

  1. Are all failing boards confirmed to be RevB, and using the same NOR flash device (Micron)?
  2. Does the issue persist even with the factory image without any modification?
  3. Are you able to consistently program and verify the NOR flash contents via JTAG on failing boards?
  4. Is the retry behavior reproducible across power cycles, or intermittent?

This will help us determine if your case aligns with the known issue or if something else is contributing.

Looking forward to your feedback.

Regards,
Fakhrul