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Shihang's avatar
Shihang
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1 year ago
Solved

JTAG chain broken after FPGA configuration

Hi there, I am using an Agilex 7 I-series Development Kit (DK-DEV-AGI027R1BES, AGIB027R29A1E2VR3), and Quartus 24.1 on Linux. After programming the device with a CXL Type 3 Example Design and resta...
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  • Shihang's avatar
    Shihang
    1 year ago

    We were able to restore the JTAG chain by switching SW8.2, which disables the FPGA on the JTAG chain. Once we do that, we were able to restore the max10 device using the factory recovery steps as described in the files that came with the board.

zutalors's avatar
zutalors
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1 year ago

Device 2 is the MAX unless the JTAG chain has been modified by DIP switch settings, which you might want to check. But it sounds like it's not able to find the indirect programming logic in the MAX.

At least for the dk-dev-agi027-ra version of the board there's a pof and readme file in factory_recovery/max10_recovery. This might be a thing to try if you're out of luck at all other ends.