I want to work SDMA with EIM on iMX6, but i didn't found that
I'm using linux kernel 3.0.15
OK, we only have one way : using SW to start SDMA.
Let me see how to !
Customers can send me email to ask for example code on how to use SDMA on WEIM interface !
At same time , Please provide project information.
Email : email@example.com
From reference manual of i.mx6, in list of SDMA event mapping, no SDMA event for WEIM device. So external device connected to WEIM port can't trigger SDMA to work.
does SDMA can support MEM to MEM transfer?
I think it's possible if SDMA can use mem to mem transfer.
(1)does SDMA can support MEM to MEM transfer?
Yes, it is.
(2)I think it's possible if SDMA can use mem to mem transfer.
Yes, I think so.
(3)External device for WEIM
An external device on weim port should send a SDMA request to trigger or tell SDMA to begin to TX or RX. But in reference manual, this SDMA trigger for weim deive is not metioned.
I think SDMA trigger(TX,RX) can work by SW(program), not DMA request(external device event)
(2) MEM to MEM transfer
-> how can i use SDMA MEM to MEM transfer, my kernel source(linux 3.0.15) look like doesn't have mem to mem SDMA
Please tell me your Email address, Let me give you an example on how to start SDMA with MEM to MEM mode.
here's my e-amil address..
See Email , I have sent it to you !
If answers are correct or helpful, please press corresponding button, this can guide other friends find what they want.
I am looking for some sample for data transfer with SDMA from WEIM-FPGA, platform is 3.14.28 , can
you send me the example?
my email: firstname.lastname@example.org
I would be interested in that example code as well for SDMA MEM to MEM. I am using the same kernel as Shin.
jkmalone at drs-rsta.com
Please tell me your Email address !
I want an example on start SDMA with MEM to MEM mode.
please send the examples to me too.
I'm using linux kernel 3.0.35.
I was also looking for some reference to the same. Could you please send the examples to me too ?
Mail Id: email@example.com
I would also like this information.
I have sent Email on how to use SDMA Example to you ! Please check your email !
My email id is firstname.lastname@example.org
Can you send me this example code?
I received Email.
I am studying on mx6q this period time. And I am very interested in the example code on how to start SDMA with MEM to MEM mode.
Could you send me a copy? My email is : email@example.com.
Thank you very much!
Can this be attached to the email thread?
I'm interested to this also. Or could you send to my mail: Shanghui.Ye@windriver.com?
My email id is firstname.lastname@example.org
Can you send me the example code for SDMA MEM to MEM transfer?
my email email@example.com.
We need to transfer video data over eim from fpga to processor.
Can you send me the example code for SDMA?
Can you please send me the example code for SDMA for MEM to MEM transfer?
We are using the linux version : linux-3.0.35
My mail id :firstname.lastname@example.org
Thanks in advance,
I also want to test the mem to mem transfer using SDMA, Could you please send me the example code.
My email: email@example.com
thanks a lot!
I'm interrested in your example code of SDMA transfer on WEIM.
Please can you send it to me at mailto:firstname.lastname@example.org
I want to use SDMA mem to mem transfer from shared memory from WEIM bus and internal or DDR3. Could you send me your example code ?
My email is email@example.com
I would appreciate getting your example code for doing memory <-> memory DMA using the WEIM bus.
My email is firstname.lastname@example.org
Could you please send me the code of MEM TO MEM SDMA.
My email is: email@example.com
thanks a lot!
Hi Weidong:, could you also please send me the code for MEM to MEM SDMA. Email is firstname.lastname@example.org
Hello, Weidong. . I am currently studying with imx6q.
I will send you an email to see the next post by Weidong.
I need example on how to start SDMA with MEM to MEM mode.
A long time ago, but can you still give the sample source?
If possible, please reply to this email.
Thank you very much.
my email is email@example.com
The Linux DMA APIs have been mapped to the SDMA.
The only thing you need to have is the Linux programming knowleadge.
In the Linux source tree, dmatest is the code for that.
Could I also have the code for SDMA mem-to-mem transfers please? IF it makes any difference, I need internal to DDR3, and DDR3 back to internal.
Dear Weidong Sun:
I want to implement use SDMA to transfer data mem to mem,Could you please send me a sample code.
My email: firstname.lastname@example.org
Thanks a lot!
My email: email@example.com
Those friends who recieved Email on WEIM mem to mem help me to press correct answer button !
Could you also send the sample code to me?
Could you also send the sample code to me too?
My email is: firstname.lastname@example.org
I would appreicate if if you could forward the sample code to me.
Could you also send the sample code to me ?
My email is: email@example.com
My email: firstname.lastname@example.org
I'm using the linux version : linux-3.0.35
My mail id :email@example.com
Could you also send the sample code to me ? My email: firstname.lastname@example.org
My email: email@example.com
I would also like to have te sample code.
My email is firstname.lastname@example.org
could you please send me a copy of MEM TO MEM sdma codes to email@example.com
Thank you very much
Could you please send me a copy of MEM TO MEM SDMA code to firstname.lastname@example.org
Hi Weidong Sun,
I would like to know if you can send me an exemple of SDMA and EIM at email@example.com
Does someone know hox to set EIM clock at 104MHz (to perform SDMA)?
I want use SDMA replace memcpy.
My email: firstname.lastname@example.org
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