For a project with a DDR3 SDRAM Controller, I am using Quartus 18.1 Lite with Platform Designer on a Windows 10 PC.
After installing WSL (Windows Subsystem for Linux), an error occurs when I try to generate code in Platform Designer., even trough Quartus 18.1 should not depend on WSL.
The immediate error is "Cannot find sequencer/sequencer.elf", where it appears that a Makefile fails to generate the file sequencer.elf.
When looking into the Quartus 18.1 scripts, is appears that the bash script:
"c:/intelFPGA_lite/18.1/nios2eds/sdk2/bin/nios2-bsp"
is not run from a generated temporary Makefile, which has the line:
C:/intelfpga_lite/18.1/quartus/../nios2eds/sdk2/bin/nios2-bsp hal sequencer_bsp .. --default_sections_mapping sequencer_mem --use_bootloader DONT_CHANGE
The Makefile is run through the script:
c:/intelFPGA_lite/18.1/nios2eds/nios2_command_shell.sh
with the line:
exec $@
where the argument $@ is:
make all 2>> stderr.txt
So it appears, that somehow enable of WSL causes execution of the bash script "c:/intelFPGA_lite/18.1/nios2eds/sdk2/bin/nios2-bsp" to fail when it is called from the temporary Makefile.
The error and some script arguments are shown in the picture below.
If I disable WSL in Windows 10, then generation of code in Platform Designer works again.
Since WSL is mandatory for e.g. Quartus 21.3 Pro, which I also have to use, it effectively requires me to enable and disable WSL and then reboot my PC each time I go between Quartus 18.1 Lite and Quartus 21.3 Pro.
Note that another, and *maybe* related, problem with DDR3 controller and WSL has been reported in e.g. https://community.intel.com/t5/Intel-Quartus-Prime-Software/Uniphy-Platform-Designer-Error-quot-Cannot-find-sequencer/m-p/1329216#M71416
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