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Visitor
Visitor
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Registered: ‎09-29-2009

Spartan-3an Multiboot, how to select boot0/1

Hi All,

 

Ok, Spartan-3an has enough memory to store two boot configurations.

 

But how to select boot0 or boot1 from the external of the FPGA ?

 

Typically, my application will have a boot0 as default at the power up of the board, then we want to re-program the FPGA with the boot1 from external demand on-the-fly.

 

So how to reprogram with boot1 on demand.

What is the mechanism ?

 

I read the doc from Xilinx, DCM_WAIT ... but I did not find how to select boot0 / boot1 on demand.

Please help me. 

 

Best regards,

Laurent

 http://www.amontec.com

 Making JTAG a Snap

 Amontec JTAGkey-2 Hi-Speed USB JTAG Dongle. 

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