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.
|Published (Last):||16 November 2011|
|PDF File Size:||11.7 Mb|
|ePub File Size:||20.33 Mb|
|Price:||Free* [*Free Regsitration Required]|
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.
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.
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
Certain products are subject to the terms and conditions of the Limited Warranties which can be viewed at axj Xilinx products are not designed or intended to be fail-safe or for use in any application requiring fail-safe performance; you assume sole risk and liability for use of Xilinx products in Critical Applications: The VHDL code now does the following:. Xilinx assumes no obligation to correct any errors contained in the Materials or to notify you of updates to the Materials or to product specifications.
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?
ChromeFirefoxInternet Explorer 11Safari. Please upgrade to a Xilinx.
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.