The good alternative was to use the AXI Data Mover. – The transfer commands are delivered by AXI4 Stream. – The status of transfers are delivered back by. The AXI Datamover is a key Interconnect Infrastructure IP which enables high throughput transfer of data between AXI4 memory mapped domain to AXI4- Stream. For you, you are probably looking at AXI Datamover or AXI Central DMA. ” Xilinx provides the AXI Virtual FIFO Controller core to use external.

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Slave interfaces may not define Metadata until Validation has been run As I am connecting a normal fifo to this input, which is not master axi, then I created an AXI fifo, with the correct width, validate, erase and finally with the correct width connect my normal fifo in the place I had it before.

I’m sorry for the extra late ratamover, I was away from the lab for several weeks. However, I have that wait state going up to 70 clock cycles before data is sent and still same behaviour. Any feedback regarding my three questions is apreciated.

AXI Datamover

As a result, I created a bit value that is a concatenation of the bit along with a bit count which is the value I am sending to the datamover DMA over AXI-Stream. I was just curious about your experience.

I do realize that in the PG there is a note saying: Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

Could this still be the issue? The command word settings are as follows:.

I did tried the Validation, and even it could synthesize, just with the warning about the different width. I am keeping a count of the 1us clock cycles to enable me to do that. But thanks to your sugestion, I tried once more with no result. We have detected your current browser version is not the latest one. Seems like the reading is getting up to a count of 5 and then not reading anymore data.

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Solved: difference between AXI Datamover and AXI DMA – Community Forums

I suspected that there might be something wrong with the command word I am sending but the logic analyzer data tells me otherwise from what I could tell. If it is then how would I know how many clock cycles are enough?

Though in simulation I havent gotten to see any datamover responses. I am receiving a bit value at the rate of 1us. For the first occurrence of each acronym, spelled out the occurrence followed by the acronym. For the datamover I have an datamoverr state machine for the cmd AXIS master that keeps on switching between idle and write states.

I found out that I was also trying the same configuration, but haven’t been able to test it because the Datamover Steam Data Width Auto is stuck at 32 even though I have a bus connected to it. All other trademarks are the property of their respective owners. Then the validation would move its width down to the datamover. I setup the datamover in S2MM basic mode mhs attached as well.

Xilinx AXI Datamover | IP Catalog

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We share info about use of our site with social media, ads and analytics partners. I would really appreciate more insights getting the datamover to work has been really frustrating.

I am trying to create a design using the AXI datamover in a Zynq design using a zedboard yet I am really struggling.

I will need to do that for a maximum ofclock cycles ms. Maybe some other ways to achieve similar effect? See details or close this message. For the mean time I have to settle with simulation to determine what is going on. Have you tried validating the block design? Any ideas as to what might be causing this behavior?

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Embedded Processor System Design: To the maximum extent permitted by applicable law: I finally managed to get some more insights on what is happening. All forum topics Previous Topic Next Topic. Your suggestions, indeed, solved the issue. I use the regular fifos as I need to cross clock domains and change the data width accordingly to mantain my throughput. You have the same problem? Actually I do disable cache in my code before reading the memory location simply by including the following:.

Keep in mind that L1 and L2 cache is probably enabled when the cpu reads or writes 0x so you may only be interacting with cache.