README.md


Description

The second installment in the embedded Linux hardware development learning exercise.
The board is an updated version of the previous ]]>AT91RM9200_SBC]]>.
Detailed documentation and resources can be found in the docs and resources folders.

Note: the CPU comes in two variants, 208 pin PQFP and 217 pin BGA. The PFQP version is pin compatible with AT91SAM9XE. The BGA version is compatible with the improved AT91SAM9G20 and has its own ]]>board]]>.

Features


CPU - AT91SAM9260 processor (ARM926EJ @ 200MHz)
RAM - 1Gb SDRAM max ( 3V3 and 1V8 types supported)
NVM - AT45DB dataflash for U-boot
microSD card slot
microUSB client interface
USB host breakout
RMII interface for Ethernet
standard Apollo.IoT expansion header


Resources

You can find all necesary information to build or evaluate the module here:
   - View layout and schematic 
   - ]]>View 3D board render]]>
   - ]]>Fabrication files]]>

Current status and changelog


v1.1.0 assembled and tested using SAM-BA, AT91Bootstrap, U-Boot and Linux Kernel ported from AT91SAM9260EK and running ok
v1.1.0 sent to factory, expected to be ready for assembly and testing in mid June.
17feb2021 - v1.1.0 assembled. Debug via UART and USB functional.
19feb2021 - sam-ba is able to load applets. AT91Bootstrap configured and flashed starting from at91sam9260ekdf_uboot_defconfig
21feb2021 - Preliminary uBoot configured and flashed starting from at91sam9260ek_defconfig