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Error: Flash Download failed - "Cortex-M3" || ATMEL SAM3U2C

Hi all,

I am trying to flash program my Atmel atsam3u2c chip without any success. I'm trying to load the default chip bootloader from Keil 5 but I got the following messages:

Erase Done.
Programming Failed!
Error: Flash Download failed - "Cortex-M3"

I am able to flash the chip with Atmel Studio but not with Keil. And I really need to do it.

I think I have it all set properly but the Programming Algorithm is wrong.

When I add it I only have 3 available to add:

- LPC18xx/43xx S25FL0...
- RC28F640J3x Dual Flash
- S29GL064N Dual Flash

Only the second one is working properly but I think it is not the good one.

In the flash folder in my Keil installation directory I don't have any AT... flash (FLM / FLX) files and was not able to find anywhere to download it.

I would be much grateful If anyone could point me in the good direction.

Thanks!