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Altera_Forum
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14 years ago

Unused IO Banks

If im not using any pins on a IO Bank do i need to connect up its IO VCC? or can i leave this bank completely un powered? Regards Russell Pirie
Altera_Forum's avatar
Altera_Forum
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14 years ago

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im going to be programming the fpga using a micro controller when the board boots up, so no need for JTAG. although would you recommend having a header any way just incase?

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The JTAG interface is;

1) A programmer

2) A communications interface

3) A logic analyzer interface

4) A NIOS processor debugger interface

5) A custom JTAG interface

.... and many more

The passive serial interface is *only* a programmer interface. You need it to program you device at power on. The JTAG interface is for all the problems you haven't thought of yet :)

Cheers,

Dave