Hi there.

I'm using the AT91SAM3S4AAMU and I have to update the firmware over UART Port. I just found the SAM-BA programming tool and use these script to programm (Enable Flash Access, Erase all, Boot from Flash) and the Send-File Command.
So I have to adopt this process to an other MCU and I can't find enough information (command, programming sequence and so on)

Thanks for your support

What other MCU?

ATMEL has described the SAM-BA protocol in a number of documents. I don't have my library at hand to provide a cite, but you could try googling.

http://www.varsanofiev.com/inside/at91_sam_ba.htm

The second MCU is a PIC which have to update the ATMEL SAM3S4 over the UART line. The SAM3S4 hasn't any external flash. So the main thing is that I don't know what the Sam-Ba updater tool all transmit and receive.
I just want to adopt the ordinary re-programming update process from Sam-Ba to Pic.

Even by connecting to the SAM3S4 it goes a lot of bytes in and out nowhere scripted what these bytes are for.

Further more I execute in SAM-BA these scripts:
1. Enable flash access (takes about 8 seconds time and lot of data goes from SAM-BA to SAM3)
2. Erase all flash (just a few bytes)
3. boot from flash (just a few bytes)

Now I can send the binary program file.

So I think there have to be a documentation how an ATMEL can be programmed with a terminal tool like Hyper Terminal. Does I understand the bootloader wrong and how other user can re-program their SAM3S without the SAM-BA tool? Does they all write their own bootloader which starts after the standard bootloader?

take a look at BOSSA source code and you will find what you need.

you could have use an AVR instead of PIC