Issues while accessing NAND Flash using SMC interface with Zynq 7020

I'm trying to get a spansion NAND Flash to work with the Zynq 7020. I tried verifying the communication using the nandps 1.03a example provided with the xilinx tools. However, the ReadId API always returns the values of ID[0] to ID[3] as 248, 224, 224, 224 whereas it should return the ASCII values for O,N,F,I. I feel it is a timing issues. Has anyone else run into similar issues ? Any known solutions/workarounds ?

0 Former Member over 11 years ago

This post on the Xilinx Zynq forum might be on target.

http://forums.xilinx.com/t5/Zynq-All-Programmable-SoC/ZYNQ-NAND-Flash-Problem/td-p/328307

-Gary
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0 Former Member over 11 years ago in reply to Former Member

I have already gone through that post. I did the changes tried there based on my NAND chip specifications, but after making those changes I'm getting 248,224,224,224. Prior to those changes I was getting 248 four times.
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