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Beginner
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Debugging for DE10-nano SoC data mover

Hi everybody, 

I'm looking for help debugging my application on a DE10-anno SoC kit. In short, I built an application that moves data back and forth between FPGA and HPS. However, my application stops after two runs because an IP receiving data doesn't seem to accept a counter reset. Unfortunately, I'm not experienced in debugging this kind of hardware/software combination. The design is a part of my Embedded Systems master thesis. I want to avoid spending too much time on debugging and I hope someone can give me some tips on how to approach this. 

I added a block diagram of my application. The DMAs, the data generator and data checker are all IPs I put together with the platform designer, starting with a golden system reference design. The data generator outputs data that the first DMA copies to the on-chip RAM connected to the HPS. Telling Linux to reserve main memory seemed quite complicated and the on-chip RAM isn't used by Linux. The second DMA reads what's on the on-chip RAM and sends it to the data checker which counts bits and errors. Additionally, the software measures how long it takes and makes sure everything runs smoothly. 

While I have some vague ideas what I could check for errors, I don't have a sophisticated plan for debugging. Additionally, I'm not experienced with the debugging tools included in Quartus. I could look into that but I would like to know first which ones are actually helpful in my case. Besides, I can't guarantee that there is only one bug or that the described problem is related to the data checker or not. 

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Employee
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Hello,


Did you follow all the guide for configure the DMA data mover from this link?


https://rocketboards.org/foswiki/Projects/Datamover


Best regards,

Isaac Vazquez.


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