1. the target hw is our own , the ref.design is from Appro DM368 IPNC sch.
2. we used the Appro's uImage.
· 3. it stopped at 'Starting Kernel .... '.
· refer below message
---------------------------------------------------------------------
DM36x initialization passed!
TI UBL Version: 1.50
Booting Catalog Boot Loader
BootMode = NAND
Starting NAND Copy...
Valid magicnum, 0xA1ACED66, found in block 0x00000008.
DONE
Jumping to entry point at 0x81080000.
Reset RTC Fail..
DM368_IPNC_UBL_1.0.0
U-Boot 1.3.4 (Apr 20 2010 - 11:42:44) DM368-IPNC-1.0.0
I2C: ready
DRAM: 128 MB
NAND: NAND device: Manufacturer ID: 0xec, Chip ID: 0xf1 (Samsung NAND 128MiB 3,3V 8-bit)
Bad block table found at page 65472, version 0x01
Bad block table found at page 65408, version 0x01
128 MiB
In: serial
Out: serial
Err: serial
ARM Clock :- 432MHz
DDR Clock :- 340MHz
Ethernet PHY: GENERIC @ 0x01
Hit any key to stop autoboot: 0
NAND read: device 0 offset 0x700000, size 0xd00000
13631488 bytes read: OK
Loading from NAND 128MiB 3,3V 8-bit, offset 0x500000
Image Name: Linux-2.6.18_pro500-davinci_IPNC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1809680 Bytes = 1.7 MB
Load Address: 80008000
Entry Point: 80008000
## Booting kernel from Legacy Image at 80700000 ...
Image Name: Linux-2.6.18_pro500-davinci_IPNC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1809680 Bytes = 1.7 MB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK
Starting kernel ...
----------------------------------------------------------------------------------------
4. Difference of two systems only install usb part, vca part and sd card or not.
=> two systems :
- appro’ evm board
- our designed board
5. I have checked all power. it’s good
6. I tested the ddr memory r/w and the nand flash r/w at diagnostic mode
=> all r/w test is good
7. I cannot understand this station.
Why appro’s evm board operate and doesn't our board operate?
(Same software & Almost similar circuit)