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Altera_Forum
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20 years ago

AM29LV065D FLASH read, erase, program?

Hi All, Does anyone know how to read erase and program the AMD flash memory in ucLinux using C programs? (AM29LV065D or AM29LV128MH) I use this memory for store uClinux FPGA SOF and user’s...
Altera_Forum's avatar
Altera_Forum
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20 years ago

Hi ,

> Can Flash(mtdblock1;kernel) be accessed directly by "open, read,write" routines If I want to

> update the kernel in runtime, then reboot.

Yes, but use the character mode device (major 90 I think) -- which needs to be enabled in

your kernel configuration. Then you can open, read, write, ioctl. To erase, use the MEMERASE ioctl.

See the following:

include/mtd/mtd-abi.h

drivers/mtd/mtdchar.c

You might want to review the mtd-utils code as well.

Regards,

--Scott