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Richard_P's avatar
Richard_P
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3 years ago

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

Hi, I am an embedded developer trying to help bring up a custom Arria 10 board. I can successfully load the SOF file to configure the FPGA using the Intel Quartus Prime Programming utility through a...
Hps Boot
Richard_P's avatar
Richard_P
Icon for New Contributor rankNew Contributor
3 years ago

Hi Aik,

Thank you for your response. I am obtaining and building the preloader using the RocketBoards link to BuildingBootloaderCycloneVAndArria10. Specifically, I am following the Arria 10 SoC- Boot from QSPI directions since we are using QSPI flash. I am building on a Linux Host - Ubuntu running on a Windows machine. I use the hps.xml output file from our custom FPGA design and everything builds cleanly. When I try to connect and load the preloader through the Arm DS debugger I get the "NCONT ERROR in ACK". I get the same error when trying to connect and debug the HelloWorld examples that are part of the Intel SoC EDS. Could this be a USB Blaster issue possibly? How can I go about diagnosing the cause of the "NCONT ERROR in ACK" message?

Thanks for your help.

-Richard