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Altera_Forum's avatar
Altera_Forum
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12 years ago

JTAG chain not seen unless factory_load switch is set

Can't figure out how to recover ... I tried adding the Flash Controller and programming the FPGA Flash and User Application Flash vie the update portal on the Arria V start Kit card. It se...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

I went in to a previous design, altered the alive LED rate , re-compiled, converted sof -> flash and used the update portal to commit to FLASH the hardware FLASh file and all that works with the new FPGA design committed to FLASG with he new LED fpash rate evident. So teh card basically workd but JTAG seems to not work unless the factory_load switch is set.

In that case the FPGA and the System Controller show up in the chain.

I plan to go into the Board Test program and try to examine the FLASH contents.

I am not sure where the the Altera Byteblaster ( MAXII ) or the Altera System Controller ( MAX V ) get their configuration from ... Assume from the FLASH image for System controller.