Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
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
Icon for Honored Contributor rankHonored Contributor
14 years ago

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?

can you have a fpga hooked upto a JTAG header and connected to a micro controller(for loading the bit file) at the same time?

Im very new to FPGAs

im currently using 'PS Configuration Circuit with a Microprocessor' from the doc 'AN 250: Configuring Cyclone FPGAs'

but it would be nice to add a JTAG header to that system as well so i can quickly test new designs, and only use the boot off the micro controller once im happy and the board works standalone

can the two be combined? i had a quick read of the AN 250 doc but could not find any examples of boot from micro controller combined with JTAG or AS header :(