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Altera_Forum's avatar
Altera_Forum
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16 years ago

Cant flash flash memory(user space)

I use a Stratix III Board. I can flash the FPGA design without any problems. But I cant flash the flash memory at the user space with my CPU-Code. Its very strange. I flashed the user space succes...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Okay you just gave a piece of key info. The flash is a 512Mbit device and consists of two stacked die.

It seems odd that SoPC Builder would locate the flash at 0x01000000. This means that the flash spans 0x01000000 to 0x04FFFFFF. Can you confirm this?

Let's assume the above statement is true.

1 - If your flash is truly located at 0x01000000, and you are trying to program the second die, you should be giving the tools an address of 0x03000000.

2 - Where are the 0x12000000 and 0x37000000 addresses coming from? I don't see how they fit into the picture with the flash device and it's base address of 0x01000000.

Jake