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What is your burst size set to in the mSGDMA? Here's a post I made last July about a problem I was seeing whenever my transfer size was larger than the mSGDMA burst size:
http://www.alteraforum.com/forum/showthread.php?t=52773&p=216944#post216944 This was on an Arria 10 SoC, which we eventually abandoned in favor of a non-SoC Arria 10. So I'm no longer working with the mSGDMA and I never did resolve the problem I was seeing.
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I was just reading this topic this afternoon. I guess my problem is related with the length field of the descriptor. As the documentation says, it is the number of transfer that the Write Master issues to the SDRAM. The thing is that I can't just increase the length size to perform a transfer of 1KB. It only allows me to transfer 16 bytes.
In my design I turned off the burst mode as it doesn't help me much here (or I think it doesn't... lol).
However, have you had problems with this length thing?
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