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etome's avatar
etome
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2 years ago

altera_msgdma with unaligned access: lost data and stuck busy

Hello, I've developed an application on a Terasic DE10-Lite board which has a MAX10 and an SDRAM chip onboard, using Quartus 18.1 for this. In my design I have used a nios II/f core (w/o cache), the...
Memory
ShengN_altera's avatar
ShengN_altera
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2 years ago

Hi etome,


Could you provide also the sof and elf files that works fine after applying the patch?

I'll report this to internal team. Please stick with the workaround in the mean time.


Thanks,

Regards,

Sheng


etome's avatar
etome
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2 years ago

Hello Sheng,

sure. This is what the test outputs when it is working fine:

nios2-terminal: connected to hardware target using JTAG UART on cable
nios2-terminal: "USB-Blaster [USB-0]", device 1, instance 0
nios2-terminal: (Use the IDE stop button or Ctrl-C to terminate)

DMA bugger

=== continuous loop ===

[dma_bugger] success = 999, fail = 0, setup time = 12517544, transfer time = 129804940
[dma_bugger] success = 1998, fail = 0, setup time = 12517515, transfer time = 129805544
[dma_bugger] success = 2997, fail = 0, setup time = 12521287, transfer time = 129805067
[dma_bugger] success = 3996, fail = 0, setup time = 12517509, transfer time = 129805073
[dma_bugger] success = 4995, fail = 0, setup time = 12521300, transfer time = 129804962
[dma_bugger] success = 5994, fail = 0, setup time = 12517506, transfer time = 129804818
[dma_bugger] success = 6993, fail = 0, setup time = 12518670, transfer time = 129805148
[dma_bugger] success = 7992, fail = 0, setup time = 12517509, transfer time = 129805062
[dma_bugger] success = 8991, fail = 0, setup time = 12517509, transfer time = 129805089
[dma_bugger] success = 9990, fail = 0, setup time = 12517512, transfer time = 129806820
[dma_bugger] success = 10989, fail = 0, setup time = 12518671, transfer time = 129804916
[dma_bugger] success = 11988, fail = 0, setup time = 12521309, transfer time = 129804786
[dma_bugger] success = 12987, fail = 0, setup time = 12517512, transfer time = 129805243
[dma_bugger] success = 13986, fail = 0, setup time = 12517509, transfer time = 129805216

Use the same elf as before, I have attached the Quartus project with the patch applied and built.

Thanks,

etome