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369 Views
Registered: ‎03-28-2019

Micro SD card interface with zynq 7020 in zed board

Hi everyone. I am facing problem in intefacing SD card with zynq 7020.I am using Vivado 2018.2 and the same driver is being used for interfacing. In ReadPolled mode interrupt is being generated and the read is failing. Please help me.

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3 Replies
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Explorer
Explorer
328 Views
Registered: ‎06-03-2015

Re: Micro SD card interface with zynq 7020 in zed board

Hi,

If  SD card driver is generated in Vivado design suite (chooses IP), same is exported to Xilinx SDK nothing but Bare metal drivers.

Please go through one/two  version back from vivado design suite 2017.4 version, try the same process in 2017.4 it will work perfectly.

If it is not working with 2017.4 also, suspect there is issue with SD card driver , but It worked for the same  without any issues.

Thanks & Regards

Satish G

G Satish Kumar
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308 Views
Registered: ‎03-28-2019

Re: Micro SD card interface with zynq 7020 in zed board

Thank you sir for the response. I have tried in 2017.4 also and iam facing the same problem. I am able to detect sd card and writepolled  function is also successful. I am facing problem only in read polled mode. At the end of read polled function, Transfer complete bit is not being set and error bit is being set and hence read is failing. I am using 25MHz clk, with pullups disabled. Sd card used is SANDISK SDHC ,32GB,UHS-1. I am attaching my code also with this.
 
 
 
Thank you sir
 
Regards
Sulochana
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307 Views
Registered: ‎03-28-2019

Re: Micro SD card interface with zynq 7020 in zed board

My code is attached as ccode

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