JTAG error device not detected

[druva1]

Hello,

I have a custom Arria10 board.

I tested the power sequence and it looks good, I used the same chip LTC2924CGN#PBF as a reference design.

I monitored with the oscilloscope the nCONFIG and nSTATUS and they go high after the last power rail (1.8V) has been turned on.

I attached a section of a schematic with a JTAG connector and a mux and a voltage translator to program the Arria10. The default configuration of this setup is to program directly the Arria10.

I am using the USB blaster (RevB) from Terasic.

I also added the TCK signal measured at the connector, then after the mux-voltage translator and the TDO signal at the voltage translator chip.

Any suggestion/idea would be highly appreciated.

[druva1]

Hi,

For anyone in the future interested in how this got fixed. It was an error in the schematic symbol of the multiplexer chip. The TDI and TDO signals in the multiplexer were swapped.

[NurAiman_M_Intel]

Thank you for sharing with us your solution. I’m glad that your question has been addressed, I now transition this thread to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you.