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AJung123's avatar
AJung123
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

Using devmem2 to write to a register hangs the Stratix 10

Hello, I am using the Stratix 10 and have devmem2 included in the Yocto build. I slightly modified the GSRD with a different sysID and included two msgDMAs (one is MM-Streaming and the other is Stre...
FawazJ_Altera's avatar
FawazJ_Altera
Icon for Frequent Contributor rankFrequent Contributor
6 years ago

Hello Alexander,

It is not easy to define the root cause of such a behavior. I had the same issue before with memtool, trying to access an address from FPGA side, and the system was hanging. After long time of debugging, I noticed that there was addressing mismatch that caused this behavior.

The only way to know what is going on is to add a signaltap file and see if the mSGDMA is responding. Furthermore, double check the connection of this IP, there might be something missing.

Thanks

AJung123's avatar
AJung123
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

Hello,

I have received your email and replied with the qsys attached. I will also attach it here for reference.