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MCS problem with Arty A7


Jinwoo

Question

Hello Team,

 

I tried to generate the .mcs file and import to NOR Flash.

And I couldn't find the N25Q128A via Vivado(v2018.1 64-bit).

I used to use ISE for several years, and I could find the FPGA and Flash through "boundary scan" from the iMPACT.

However, Vivado is new to me and I tried to make mcs file and I couldn't find N25Q128A

 

Could you give me idea how to generate the mcs file and import to Flash?

I want to program in "SPI Flash" mode, NOT "JTAG" mode.

Thank you!!

image.png.cceda59dc4134e490118869f7c5a4965.png

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Hi @Jinwoo,

Xilinx removed this flash from there list in more recent versions of vivado because micron's flash on the Arty-A7-35T is EOL. Xilinx added mt25ql128-spi-x1_x2_x4 as a replacement in there list. I completed and verified a flash project for the Arty A7-35T using the flash mt25ql128-spi-x1_x2_x4. This is also discussed in the xilinx forum thread here.

thank you,

Jon

Arty_flash.jpg

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@jpeyron

I upload the mcs follow your configuration! Thank you so much!!

 

It looks like it takes long time to read from FLASH to FPGA. For now it is not a critical issue to me but is there some additional configuration options in VIVADO? Any other idea FRIENDS?

 

Jinwoo

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Hi @Jinwoo,

How long does it take to load the flash? You could compress the bitstream as done in this older tutorial here.  What type of project are you loading into flash? If you are using the Hello world template in sdk then you should also comment out verbose as described in this tutorial here

thank you,

Jon

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Hello @jpeyron

 

I developed my own RTL project.

It looks take around 6-sec to finish load the flash.

It's 2,141KB size of my bitstream and 6,022 KB size of .MCS

Compare to the ISE, Vivado UI is new to me. So it's little confuse to find the compress option.

I need to more time to paly with VIVADO :)

Thank you again JON!

 

Jinwoo

 

 

 

 

 

 

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