Intel® Quartus® Prime Software
Intel® Quartus® Prime Design Software, Design Entry, Synthesis, Simulation, Verification, Timing Analysis, System Design (Platform Designer, formerly Qsys)
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JTAG Chain error

Vinit_Khadakabhavi
Beginner
‎06-24-2025 04:56 AM
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Error (209031): Device chain in Chain Description File does not match physical device chain -- expected 1 device(s) but found 2 device(s).

I am trying to flash my verilog code on Cyclone V 5CSXFC2C6U23C7 SoC FPGA. When i click autodetect in quartus prime it gives me two devices SOCvHPS and 5CSXFC2C6. When i select 5CSXFC2C6 and .sof file to it click run it shows me above error. Any suggestions for the above problem please.

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WZ2
Employee
‎06-25-2025 12:55 AM
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Hi there,

Based on what we're seeing, it seems that the flash on the Cyclone V contains an image for the HPS. A simple approach would be to erase the flash and then perform a reboot.

Best regards,

WZ


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