NCONT ERROR in ACK for access 0 : ACK = 0x01 when trying to connect with Arm DS debugger through JTA

Hi Aik,

I will remove the other Blaster just in case. I would like to focus testing on the dev kit for now that that would eliminate any custom board issues. Using the dev kit, I am not able to successfully perform the steps outlined in the "Run U-Boot SPL from Debugger" section of the "SoCEDS and ARM Development Studio" instructions found on RocketBoards here: SoCEDS and ARM Development Studio | Documentation | RocketBoards.org

I am unable to connect to our dev kit board using the Arm Development studio debugger. I get the This same "NCONT ERROR in ack" message that I get with our custom board when the debugger tries to connect through the JTAG interface. I can successfully program the FPGA with the dev kit design SOF though, just like with our custom board.

I wanted to ask if you can try and duplicate my dev kit setup as best you can and execute the "Run U-Boot SPL from Debugger" instructions from the RocketBoards website and see what results you get.

I am using the HAN Pilot Platform dev kit (Terasic - All FPGA Boards - Arria 10 - HAN Pilot Platform). It has an on-board USB Blaster II that is connected to a PC running Windows 10 Pro (Ver 22H2, OS Build 19045.2965) with an Intel Core i7 processor (3.40GHz) and 16GB of RAM. The dev kit board is currently configured to boot the default Linux from the Micro SD card.

I'm not sure if you have access to that particular dev kit, but hopefully you have access to the more common Intel Arria 10 SX SoC Development Kit. That dev kit is similar. Are you able to try and execute the "Run U-Boot SPL from Debugger" instructions on an Arria 10 dev kit?

Thanks,

Richard