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Sanity check for very first FPGA circuit design

r2kordmaa

Hi

 

I have played around with couple of Spartan3 FPGA boards, but have never designed a FPGA circuit before

so here goes small step for mankind, giant leap for me

 

I designed my circuit around SC3S200A(Spartan3A), in a 100pin QFN package

I have done my best, but without prior experience in FPGA circuit design, that might not be enough,

any problems in secondary subsciruits i can deal with, but if FPGA fails to run i have waisted substantial sum on PCB and components

I would rather like to avoid that

 

So would anyone with experience on designing Spartan3(A) circuits be willing to take a look at my design and tell me if the design has any chance of working?

I have attached the schematic PDF

 

Primary consern is page 2, JTAG and boot configuration.

 

FPGA power is on page 3 and IO banks on page1, but i think its unlikely there are problems on these pages that might brick my design

 

Rest of the circuitry is mostly unrelated to FPGA and if some of that doesnt work, its not a huge problem

 

thank you in advance

Attachments:
imageXC3S200A SCH.pdf
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  • Hi,

     

    Yes, it is always good to have a fresh pair of eyes look over your work before you burn the silicon.

    If nothing else, sit down with someone and just take them trough your design.  You will almost always find errors as you try to explain your approach, even if the person you are talking to has no technical knowledge at all.

     

    I will usually try to explain my circuits and software to my wife, an artist, and she has a good logical mind so she has an instinct for asking simple questions that make me pause and think.

     

    Peer reviews work.  Try to use them on your projects.

     

    Just my opinion,

    DAB

Reply

  • Hi,

     

    Yes, it is always good to have a fresh pair of eyes look over your work before you burn the silicon.

    If nothing else, sit down with someone and just take them trough your design.  You will almost always find errors as you try to explain your approach, even if the person you are talking to has no technical knowledge at all.

     

    I will usually try to explain my circuits and software to my wife, an artist, and she has a good logical mind so she has an instinct for asking simple questions that make me pause and think.

     

    Peer reviews work.  Try to use them on your projects.

     

    Just my opinion,

    DAB

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