Hi all,

We are working with AT95SAM9G45 MCU and using the bottstrap 1.16. Thi ist the latest version which I could find at the atmel Website. But suddenly I found here the bootstrap 3.0 at

ftp://ftp.linux4sam.org/pub/Android4SAM ... p30.tar.gz

And I ask me: is this version the latest or exists any newest? Does anyone know, where is the Website of working group of bootstrap? Google doesn't help this time.

Thanx a lot,
velik

I'm sure you could run a diff/merge application against the code and see what is different.

The AT91Bootstrap has a very simple job, to initialize the SDRAM, setup some GPIO/Serial, and pull the secondary bootloader (uBoot) from flash (NAND or DataFlash) into SDRAM before executing it. The 1.16 version has to support a wide range of older chips, with limited SRAM resources. It is a generic solution.

With chips with larger SRAM resources you can construct a more complicated boot loader that can in fact do some of the work that uBoot does to bring up the kernel, and eliminate stages in the boot strapping sequence. This doesn't invalidate the 1.16 method, it just becomes a different beast.

Go with the latest builds available for Linux/Android for the capabilities of your board/CPU, I would suspect they support initializing LCD panels, and splash screens. Most of the things I deal with are headless, your mileage may vary.