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.
|Genre:||Health and Food|
|Published (Last):||8 June 2005|
|PDF File Size:||16.57 Mb|
|ePub File Size:||2.33 Mb|
|Price:||Free* [*Free Regsitration Required]|
Auto-suggest helps you quickly narrow down your search results by suggesting possible datamoverr as you type. For some reason I could not arm the core or get it to trigger.
I setup the datamover in S2MM basic mode mhs attached as well. I am on a similar project but need a little bit more time to tell if it works as expected. 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. Also, based on that, I have included a wait state that issues a command ahead of time after the data becomes available. It’s the mechanism to propagate various parameters like data width.
Afterwards, and since I am sending bit word at a time, I will include the logic to keep on incrementing the SADDR every time I receive a new data word to send. It also seems like the rest of the signals are correct.
To the maximum extent permitted by applicable law: I connected manually each signal from two AXI interfaces from datamover to each signal in one AXI interface and it worked so the rest of my design is finebut I dubt it’s a good practise. See details or close this message. I went to seek external help since nobody on this forum had any useful suggestions.
The command word settings are as aix. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. All forum topics Previous Topic Next Topic.
AXI interconnect and DataMover – Community Forums
It’s a bit strange that the second transfer cannot be executed, since a the FSM goes through through the same steps in the second iteration as it did in the first one, so the protocol is being followed, and b as far as I understand, there’s no need to do any kind of inter-transfer [re]initialization of the DataMover block or is there? We have detected your current browser version is not the latest one.
ChromeFirefoxInternet Explorer 11Safari. Believe I ran into this before. We have detected your current browser version is not the latest one. Its been almost two weeks since I have been trying to get this to work. The VHDL code now does the following:. Additional Resources The following information is listed for each version of the core: Could this still be the issue?
datamoer I do realize that in the PG there is a note saying: 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. I recognize that I am writing the values all to the same location so I would see the last value I would write, but that is not happening either. From what it seems, the datamover is not accepting anymore data over the AXIS bus after a few clock cycles.
Embedded Processor System Design: Actually I do disable cache in my code before reading the memory location simply by including the following:.
I greatly appreciate your help. Then the validation would move its width down to the datamover. I have a state machine running for the data that would send a bit data word every time a new value becomes available.
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.
For the first occurrence of each acronym, spelled out the occurrence followed by the acronym. My current efforts look like that. Have you tried validating the block design?