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Altera_Forum's avatar
Altera_Forum
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12 years ago

Failed to program flash

Hello everyone, Sorry about my poor english, i've developped a FPGA board which has a SST39VF6401B (Microchip flash), i'm using SOPC to configure the FPGA. I use Nios II to program flash (only ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

In such situations I'd try to manually access the flash device with IORD/IOWR and check if the hw interface is working as expected.

Read the flash datasheet: a few IOWR and IORD are used to get basic flash information, like vendor and product Id and this is enough to exclude major errors in design.