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Altera_Forum's avatar
Altera_Forum
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16 years ago

how to write a override file?

hi, when i use nios2-flash-programmer --base=0 --debug ,i get the CFI Table,and i copy the table to a overrride.txt file.when programmed ,it gives a report erase region don't match the dev...
Altera_Forum's avatar
Altera_Forum
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16 years ago

the file is called "nios2-flash-override.txt"

for EPCS devices you would add

[EPCS-010216]# EPCS64N (Spansion-lead-free) S25FL064A0LMFI001

sector_size = 65536

sector_count = 128

The Spansion datasheet for this device says

Manufacture Identification 01h

Memory Type 02h

Memory Capacity 16h

putting all these informations together delivers 010216

if the nios2 flash programmer uses the override file then it would tell you as you use the --debug option.

According to http://www.altera.com/literature/ug/ug_nio..._programmer.pdf (http://www.altera.com/literature/ug/ug_nios2_flash_programmer.pdf) the procedure is nearly the same as you added exactly the example from the altera document.

This example is for the SST 39VF800 do you have this device ?