Thread: Mainline kernel introduces support for Atmel's MPU

Atmel announced the availability of the latest Linux mainline release, v2.6.27, for its 400 MHz ARM926EJS-based AT91SAM9G20 embedded microprocessor, and for other members of the AT91SAM9 family. A Linux distribution based on Linux v2.6.27 is available from Atmel's AT91SAM Linux portal at www. linux4sam.org. It includes the complete Linux v2.6.27 kernel, the Linux patch for the AT91SAM9G20EK, device drivers, pre-built demonstrations and the Angstrom! OpenEmbedded building environment.



Complementary products and support are available through TimeSys, including an embedded Linux ReadyKit for the entire AT91SAM9 series, which includes the AT91SAM9G20. The R'eadyKit comprises a pre-built Linux kernel, device drivers, a GNU-based _cross toolchain, a glibc-based root ftlesystem complete with selected development libraries, 14 days of technical support and access to a wide range of support documentation.

The 400 MHz AT91SAM9G20 features Atmel's DMA (direct memory access) and distributed memory architecture that, together with the 6-layer bus matrix, enables multiple simultaneous data transfers between memories, peripherals and external interfaces without consuming CPU clock cycles. The external bus interface (EBI) is clocked at 133 MHz for high-speed transfers to off-chip memories. This architecture gives the device the high internal and external data bandwidth required by many embedded networked applications.