Write Data to Sdcard of Zedboard

Hi folks,
I want to write data/file to Sdcard present in Zedboard. I am able to write data to DRAM. How Can i Read from DRAM and write that particular data to SDCARD?
I have searched but not able to find any good tutorial for this.

Regards

0 zedhed over 10 years ago

Hi Hammad,

Are you trying to do this from Linux or from a baremetal application?

If you are doing this from a baremetal application, there is some example code within SDK that you can leverage as a starting point for reading/writing to an SD card:

http://zedboard.org/content/read-txt-matrices-sd-ddr-zedboard

Regards,

-Kevin
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel
0 Former Member over 10 years ago in reply to zedhed

Kevin Thanks for reply,
Baremetal/standalone or linux anything can be good for me to write first time on SDCARD.

Actually What I want to do is Have input coming from ADC of zedBoard send that data from PL to PS and write it on DRAM. Uptill Now I am done with this. Now i Want to read data written in Dram and Write the read data to SDCARD. Please help

Regards
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel
0 Former Member over 10 years ago

Hi Hammad,
You can find this tutorial on how to use the SD card of the Zedboard in standalone software platform.
link : http://embeddedcentric.com/data-logging-using-sd-cards/
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel
0 Former Member over 10 years ago in reply to Former Member

Hi,
Let me try it and then i'll let you know as soon as possible.

Regards
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel
0 Former Member over 10 years ago in reply to Former Member

Hi, I have downloaded lab7 from your github repository As I am using older version of vivado I am not able to open your proect in Vivado. So i searched for harwadre(.hdf) and .bit file in your project and i got them. I started my Xilinx Sdk and did all the steps what you told but i am getting error(ZedboardOLED.h file not found). I don't know why i am getting this error. If i copy "ZedboardOLED.h" file from zynq_interrupt_system_wrapper_hw_platform_0 to my data_logger project I get error at line 51 and line 54.

Regards
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel
0 Former Member over 10 years ago

You don't have to do the complete lab of data logging using the OLED screen. Just create a Zynq Processing System ,do procedure B (Enable SD0 Host Controller on PS ) exactly as explained in the tutorial(cuz the default settings of Vivado r wrong). Then procedure C and D. However, in procedure E you need to create your own application. Read the FatFs API sections to be able to use it.
http://embeddedcentric.com/data-logging-using-sd-cards/

Hope this helps.

EmbeddedCentric.com
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel
0 Former Member over 10 years ago in reply to Former Member

Yeah done writing to Sdcard. Thank you
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel
0 Former Member over 10 years ago in reply to Former Member

I have another question. I want to write minimum 256 MB or more to DDR memory of Zed Board. Total size of DDR is 512 MB. And then want to read all the data which i have wrote in memory. I am able to write 64 bytes of data in DDR but not able to write more than that. To write in DDR I am using Axi_dma on PL side.

And one more question i want to ask do i have to enable the READ CHANNEL of Axi_dma to read from DDR???

I have posted a new forum here (http://zedboard.org/content/read-and-write-ddr-zed-board) but no one answered So Please help Sir.

Regards
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel