In-Circuit Programming of SPI NOR Flash

[Jeremiah Cornelius]

< SNIP >

I can confirm that, at least on my unit, the SPI NOR flash ROM arrives empty. You will find a detailed write up of the entire process at this link:

https://gist.github.com/hxmuller/1c209d2...37237b649e

Does this mean - at least to the best knowledge - that a desired uBoot image could be flashed in place to the SPI? Is there any special parameterization, other than the usual image, that would be required?

It seems that the risk of screwing this up is minimal. Since the default state is a blank SPI image, then any failed attempts could be recovered by zeroing the SPI as you describe. Is this also right?

Thanks much,