ContributionsMost RecentMost LikesSolutionsRe: Compilation fail duo to hps_csdram_p0 Hi Aik Eu, When I followed these steps from the link you metioned, running hps_sdram_p0_pin_assignments.tcl had the similar error. I have attached the screen shot file to the post. Thanks. Regards, David Yu Re: Compilation fail duo to hps_csdram_p0 Hi Aik Eu, I created new project with your de10-nano template file(DE10_Nano_golden_top.qar) and use platform designer to add hps-to-fpga interface in my design. You can see my project files I attached the post previously. I found that the compilation issue is from adding hps-to-fpga interface. If I remove hps-to-fpga interface from qsys, the compilation is without error. Re: Compilation fail duo to hps_csdram_p0 Yes, I still need help. Re: Compilation fail duo to hps_csdram_p0 @sstrell I created new project with "DE10_Nano_golden_top" template to design our FPGA SoC. I have attached .qsys file to this post. Compilation fail duo to hps_csdram_p0 We used platform designer and use hps IP to build our design. But Compilation failed and had the following message: Error: The auto-constraining script was not able to detect any instance for core < hps_sdram_p0 > Error: Verify the following: Error: The core < hps_sdram_p0 > is instantiated within another component (wrapper) Error: The core is not the top-level of the project Error: The memory interface pins are exported to the top-level of the project Error: Alternatively, if you are no longer instantiating core < hps_sdram_p0 >, Error: clean up any stale SDC_FILE references from the QSF/QIP files. How to solve this issue? Re: The Quartus project source files of DE10-nano default .rbf file Hi Intel, Do you have any suggestion that we can follow? The Quartus project source files of DE10-nano default .rbf file Hi, In your factory SD card, there is a default FPGA design file, called de10-nano.rbf, in FAT partition. Could you provide the Quartus project source files for us, as study reference? 1 The Quartus source project files of DE10-nano default .rbf file Re: DE10-Nano device tree (dts) in kernel sources Hi Aik, Do you have any suggestion about gpio-leds funcion in fpga-region? Thanks. David Yu Re: DE10-Nano device tree (dts) in kernel sources Hi, In your DE10-nano SD card image, there is a gpio-leds funcion in fpga-region in device tree infomation ( shown in /proc/device-tree/ ). But I cannot find this part in device tree source (dts) in the links you provided.