Introduction

SAM9-EVAL is an evaluation board based on at91sam9260 Atmel SoC. It has an old ARM926EJS core. But because of it QFP208 package, you can have your own evaluation board with simple 2 layer PCB.

That'a what I've done!

Specification

• AT91SAM9260 SoC (ARM926EJS core)
• 64 Mbytes SDRAM
• 256 Mbytes NAND flash
• 4 Mbytes Atmel Data Flash
• DP83848 Ethernet physical layer
• FT232BL USB to serial converter
• µSD card slot

History

First version of board (V1.00) had major problems

1. Signal integrity issue in SDRAM data
2. Power integrity issue in SDRAM power/ground path
3. Ethernet RX path

After lot of struggling, I could make it working in half of SDRAM nominal frequency.

More information can be find in Documents/Sam9-eval.one

Notes

1. For using at91bootstrap , you must change recovery button form PA31 to PB23. Unless otherwise after flashing at91bootstrap, you can not clear it!

   Check Source Code/change_recovery_button_form_PA31_to_PB23.patch for more information.

2. Before any decision about this board, as good friend said: Check it yourself !

3. And ... Have fun ...