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Re: [microblaze-uclinux] Spartan3E board and u-boot question



As John Yin recommended to check :

Xilinx Record 24015

I removed J30: M0 and M2 to change the mode:

And now the memory test app works.

Memory app :

-- Allo Entering main() --
Starting MemoryTest for DDR_SDRAM_32Mx16:
 Running 32-bit test...PASSED!
 Running 16-bit test...PASSED!
 Running 8-bit test...PASSED!
-- Exiting main() --

And XMD write an read are now ok:

Compare Instruction Support........off
JTAG MDM Connected to MicroBlaze 1
Connected to "mb" target. id = 0
Starting GDB server for "mb" target (id = 0) at TCP port no 1234
XMD% mwr 0x24000000 0x12345678
XMD% mrd 0x24000000
24000000:   12345678

XMD%

So I continued with a pre-built design.

And now for the first time, i see the U-boot screen


=================================================
FS-BOOT First Stage Bootloader (c) 2006 PetaLogix
=================================================
FS-BOOT: System initialisation completed.
FS-BOOT: No existing image in FLASH.  Starting image download.
FS-BOOT: Waiting for SREC image....
FS-BOOT: Image download successful.
FS-BOOT: Warning image location differ from default boot location. Image will no
t boot automatically after POR.
FS-BOOT: Press 'n' to boot old image.
FS-BOOT: Use new image.
FS-BOOT: Booting image...
SDRAM :
       U-Boot Start:0x23fc0000
       Malloc Start:0x23f60000
       Board Info Start:0x23f5ffd0
       Boot Parameters Start:0x23f4ffd0
FLASH: 16 MB
ETHERNET: MAC:<NULL>

*** Warning - bad CRC, using default environment

U-Boot>


So it seems jumper on J30 should be at M1 only when using DDR_RAM
without booting from Flash the design.
This might be usefull for others trying to work with the Spartan3E-500
dev board.


Thank you everyone for your help,

Stephane
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