Spartan-3E, StrataFlash Memory - wrong reading!

[wedo]

Dear Friends,

 

I have done an example for using the Spartan-3E kit StrataFlash Memory.

 

I got a problem I couldn't figure-out how to fix!

The problem is:

 

1-  writing the following values to the StrataFlash:

1              2              3              4              5              6              7              8

 

2- Reading the written values from the same address, I get:

1              3              3              5              5              7              7              9

  

Also the reserved space on the FPGA is huge, I believe that this design can be optimized so that we can save some LUTs.

 

I wonder if someone can help and check my design, then advise the optimization points!

 

Also, I tried to read the identifier code, but I got the value 88h and I didn't understand this value!

 

P.S. Labview8.6.

 

Thanks,

 

[wedo]

Hello guys,

 I'm still looking to getting a response!

[Robbob]

I've never programmed he strataflash before on this board, but here are some resources I use for the Spartan:

http://pwo.fpga.be/coursematerial.html

LabVIEW FPGA Module Training for Xilinx Spartan 3E XUP Hardware

Not sure if the strataflash use is in there, however. Since these are academic only products, I dont think classes get that in depth on the boards.

[wedo]

Hello,

Thanks for your feedback but it seems theanswer has no relationship with the question, isn't? The below resources don't includeprogramming Strataflash!

The LABVIEW-FPGA Driver for Spartan-3E starterkit provides an example, but even this example is giving a wrong reading ormaybe writing in the first place! So, you may would ask the guy who wrote thedriver example about this problem. I don't think the problem is in the written example,it seems to me the problem has to be in the Strataflash settings/modes!

If you have done any example about programming Strataflashwith RIO or any other module, please do me a favor and attach.

Thanks & Looking forward to getting yourfeedback and test the attached example!