Occasional Contributor
Frequent ContributorHi Himanshu,
Could you send me a screenshot of the OpenOCD error logs for me to investigate further.
Thank you.
Kelly
Occasional ContributorHello,
I would like to tell inform you that I am not using the OpenOCD Debugging option from the RiscFree IDE. Instead I am using "Ashling RISCV (auto-detect) hardware debugging option.
Occasional ContributorAlso I would like to mention some related information regarding the issues. The SDRAM consists 16 bit data bus while the data bus of NIOSV bus is 32 bits. Although the tool should be able to manage both the interfaces on its own, but to verify I created another simple design where I used On-Chip-Ram as program memory with 16 bits data width. Now my NIOSV code should work with 16 bit On-Chip-Ram but somehow I faced the same issue which I was facing while using external SDRAM as program memory. The NIOSV ELF gets loaded successfully without Run Failure but does not get executed. While running through Debug("Ashling RISCV (auto-detect) hardware debugging option), I faced the similar issues as I was facing for external SDRAM. The Debugger console shows the warning, "Cannot Access memory at address 0x2b4".
I am attaching the design here for your reference. Please have a look and give your feedback !!
Can NIOSV run with 16 bit On-Chip-Ram. If yes, then why it is resulting in such kind of errors. Only if I change the data width of On-Chip-Ram to 32 bits, everything works fine. But with 16 bit, it is having issues while accessing the code. I think similar issues were there with SDRAM as the data bus of SDRAM is 16 bits.
Please find a solution regarding this. Thanks !!
Regards,
Himanshu
