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FHere
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8 years ago

Is my Arria 10 bricked? Can't access JTAG chain

I typically program my Arria 10 SoC FPGA kits via (network) JTAG server.

This gave no problems for a long time. One day, I programmed two boards. After that, I got a blinking red led D17 : MAX_ERROR -> "Board abnormal indicator".

According to the manual, this LED corresponds to the system Max v on the board. Even though this chip was not in the programming chain at the time, I reflashed it with the stock firmware. However the behaviour did not change.

What I observe is a blinking red led upon boot, and it continues like this forever. I cannot access the board via USB JTAG, nor with the USB blaster that connects to the pin header.

Help please! :S

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