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relsaar_design's avatar
relsaar_design
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2 months ago

Nios V/m JTAG run‑control HALT fails — Debug Module healthy, hart never halts

## Summary On a Nios V/m soft processor, JTAG **halt** never succeeds: the Debug Module enumerates and answers DMI cleanly, the hart runs and is resettable via `ndmreset`, but a `haltreq` is ignore...
Nios Cpu
LiangYuG_Altera's avatar
LiangYuG_Altera
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2 months ago

Hi relsaar_design​ 

Would you mind share a photo of your QSYS design?
I can take a look, and see any differences.

FYI:
I tested a 26.1Pro Nios V/m design on Arria 10 SoC dev kit (aka 10AS066N3F40E2SG), and the niosv-download is working fine. I don't think there is major JTAG difference between 10AX022C4U19E3SG & 10AS066N3F40E2SG. But let's see how the investigation goes.

 

Regards,
Liang Yu