XFlash: don't erase all

[babazaroni]

I've got a large spi flash chip and it's taking 4 minutes to program it, even with a small firmware image.  The trouble appears to be it is slowly erasing the whole chip.

Verbose mode is showing that xflash is using the -D ERASE_ALL_FIRST=1 directive.

I reviewed the options to xflash and don't see how to override this.

Any Ideas?

[Guest]

Try changing the clock divider of SPI by using following command line option.

--spi-div n

Sets the divider for the SPI clock to n, producing an SPI clock speed of 100/2nMHz. By default, if no target is specified, the divider value is set to 3 (16.7MHz).

Hope this helps.

[Ross]

spi-div is broken in tools version 13.2, other versions should be okay. You could try setting -boot-partion-size appropriately.