1.) I have purchased DM368 based IP camera from Appro.(model: Davinci DM368IPNC-IMX036)
    In the beginning, I was getting camera display and the complete gui on internet explorer  on the IP address
    To get the gui output i am following static ip procedure as described in the document.

2.) I referred to the document Users_Guide_IPNC_DM368_IMX036.pdf . I installed the linux kernel
on the board as described in the document.But after doing that i am not getting any gui or camera display output
at ip printenv command output on DM368 IPNC prompt is folows: 

DM368 IPNC :>printenv                                                          
bootcmd=nand read 0x82000000 0x700000 0xD00000;nboot 0x80700000 0 0x500000;boot0
bootargs=mem=48M console=ttyS1,115200n8 root=/dev/ram0 rw initrd=0x82000000,16M’
ver=U-Boot 1.3.4 (Jan 15 2010 - 17:00:58) DM368-IPNC-0.7                       
Environment size: 504/131068 bytes    

4.) After booting the camera on with that kernel, following is the output on terminal.

Welcome to minicom 2.4

Compiled on Jan 25 2010, 06:49:09.
Port /dev/ttyUSB0

Press CTRL-A Z for help on special keys             
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:    1818408 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:    1818408 Bytes =  1.7 MB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... OK                                                   
   Loading Kernel Image ... OK                                                 
Starting kernel ...                                                            
Linux version 2.6.18_pro500-davinci_IPNC_DM368_2.6.0 (root@localhost.localdomai1
CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177                  
Machine: DaVinci DM368 IPNC                                                    
Memory policy: ECC disabled, Data cache writeback                              
DaVinci DM0365 variant 0x8                                                     
PLL0: fixedrate: 24000000, commonrate: 170000000, vpssrate: 340000000          
PLL0: vencrate_sd: 75555555, ddrrate: 340000000 mmcsdrate: 48571428            
PLL1: armrate: 432000000, voicerate: 20571428, vencrate_hd: 27000000           
CPU0: D VIVT write-back cache                                                  
CPU0: I cache: 16384 bytes, associativity 4, 32 byte lines, 128 sets           
CPU0: D cache: 8192 bytes, associativity 4, 32 byte lines, 64 sets             
Built 1 zonelists.  Total pages: 12288                                         
Kernel command line: mem=48M console=ttyS1,115200n8 root=/dev/ram0 rw initrd=0x’
PID hash table entries: 256 (order: 8, 1024 bytes)                             
Clock event device timer0_0 configured with caps set: 07                       
Console: colour dummy device 80x30                                             
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)                  
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)                   
Memory: 48MB = 48MB total                                                      
Memory: 28288KB available (3117K code, 647K data, 176K init)                   
Security Framework v1.0.0 initialized                                          
Capability LSM initialized                                                     
Mount-cache hash table entries: 512                                            
CPU: Testing write buffer coherency: ok                                        
checking if image is initramfs...it isn't (bad gzip magic numbers); looks like d
Freeing initrd memory: 16384K                                                  
NET: Registered protocol family 16                                             
DaVinci: 104 gpio irqs                                                         
MUX: initialized GPIO20                                                        
MUX: initialized I2C_SCL                                                       
Generic PHY: Registered new driver                                             
ch0 default output "COMPOSITE", mode "NTSC"                                    
VPBE Encoder Initialized                                                       
SCSI subsystem initialized                                                     
NET: Registered protocol family 2                                              
IP route cache hash table entries: 512 (order: -1, 2048 bytes)                 
TCP established hash table entries: 2048 (order: 1, 8192 bytes)                
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)                       
TCP: Hash tables configured (established 2048 bind 1024)                       
TCP reno registered                                                            
 ***davinci_spi_board_init_End(0)!<5>VFS: Disk quotas dquot_6.5.1              
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)                     
squashfs: version 3.1 (2006/08/19) Phillip Lougher                             
JFFS2 version 2.2. (NAND) (C) 2001-2006 Red Hat, Inc.                          
yaffs Jun 30 2011 15:45:25 Installing.                                         
SGI XFS with no debug enabled                                                  
Initializing Cryptographic API                                                 
io scheduler noop registered                                                   
io scheduler anticipatory registered (default)                                 
LTT : ltt-facilities init                                                      
LTT : ltt-facility-core init in kernel                                         
DAVINCI-WDT: DaVinci Watchdog Timer: heartbeat 60 sec                          
Serial: 8250/16550 driver $Revision: 1.90 $ 2 ports, IRQ sharing disabled      
serial8250.0: ttyS0 at MMIO map 0x1c20000 mem 0xfbc20000 (irq = 40) is a 16550A
serial8250.0: ttyS1 at MMIO map 0x1d06000 mem 0xfbd06000 (irq = 41) is a 16550A
RAMDISK driver initialized: 1 RAM disks of 32768K size 1024 blocksize          
Linux video capture interface: v2.00                                           
Trying to register davinci display video device.                               
Trying to register davinci display video device.                               
davinci_init:DaVinci V4L2 Display Driver V1.0 loaded                           
i2c /dev entries driver                                                        
nand_davinci nand_davinci.0: Using 4-bit hardware ECC                          
NAND device: Manufacturer ID: 0xec, Chip ID: 0xf1 (Samsung NAND 128MiB 3,3V 8-b)
Creating 7 MTD partitions on "nand_davinci.0":                                 
0x00000000-0x00300000 : "bootloader"                                           
0x00300000-0x00500000 : "params"                                               
0x00500000-0x00700000 : "kernel"                                               
0x00700000-0x02700000 : "filesystem"                                           
0x02700000-0x02900000 : "data1"                                                
0x02900000-0x02d00000 : "Calibration"                                          
0x02d00000-0x08000000 : "data2"                                                
nand_davinci nand_davinci.0: hardware revision: 2.3                            
MUX: initialized SPI0_SCLK                                                     
MUX: initialized SPI0_SDO)                                                     
dm_spi.0: davinci SPI Controller driver at 0xc3866000 (irq = 42) use_dma=0     
rtc_davinci_dm365 rtc_davinci_dm365.0: rtc intf: proc                          
rtc_davinci_dm365 rtc_davinci_dm365.0: rtc intf: dev (254:0)                   
rtc_davinci_dm365 rtc_davinci_dm365.0: rtc core: registered rtc_davinci_dm365 a0
Advanced Linux Sound Architecture Driver Version 1.0.12rc1 (Thu Jun 22 13:55:50.
ASoC version 0.13.1                                                            
CQ0093 Voice Codec 0.1                                                         
asoc: cq93vc <-> davinci-vcif mapping ok                                       
ALSA device list:                                                              
  #0: On-chip voice codec (cq93vc)                                             
IPv4 over IPv4 tunneling driver                                                
TCP bic registered                                                             
NET: Registered protocol family 1                                              
NET: Registered protocol family 17                                             
rtc_davinci_dm365 rtc_davinci_dm365.0: setting the system clock to 2000-01-01 0)
Time: timer0_1 clocksource has been installed.                                 
Clock event device timer0_0 configured with caps set: 08                       
Switched to high resolution mode on CPU 0                                      
IP-Config: No network devices available.                                       
RAMDISK: cramfs filesystem found at block 0                                    
RAMDISK: Loading 14136KiB [1 disk] into ram disk... done.                      
VFS: Mounted root (cramfs filesystem) readonly.                                
Freeing init memory: 176K                                                      
INIT: version 2.86 booting                                                     
mkdir: Cannot create directory `/dev/.test': Read-only file system             
Starting the hotplug events dispatcher: udevd.                                 
Synthesizing the initial hotplug events...done.                                
Waiting for /dev to be fully populated...done.                                 
CSL: Module install successful, device major num = 253                         
CSL: Module version 0.10.00, built on Jun 30 2011 15:48:54                     
I2C: Module install successful, device major num = 252                         
DMA: Module install successful, device major num = 251                         
DRV: Module install successful                                                 
DRV: Module built on Jun 30 2011 15:48:55                                      
DRV: EDMACC.QUEPRI  = 00000777                                                 
DRV: SYSTEM.MSTPRI0 = 00440022                                                 
DRV: SYSTEM.MSTPRI1 = 00000244                                                 
DRV: ISP.BCR        = 00000002                                                 
DRV: SYSTEM.MISC    = 00000391                                                 
CMEMK module: built on Jun 30 2011 at 15:48:36                                 
  Reference Linux version 2.6.18                                               
  File /home/user/workdir/dvsdk_2_10_01_18_v2.6/linuxutils_2_24_03/packages/ti/c
allocated heap buffer 0xc4000000 of size 0x5000000                             
CMEM Range Overlaps Kernel Physical - allowing overlap                         
CMEM phys_start (0x1000) overlaps kernel (0x80000000 -> 0x83000000)            
cmemk initialized                                                              
EDMAK module: built on Jun 30 2011 at 15:48:37                                 
  Reference Linux version 2.6.18                                               
  File /home/user/workdir/dvsdk_2_10_01_18_v2.6/linuxutils_2_24_03/packages/ti/c
IRQK module: built on Jun 30 2011 at 15:48:38                                  
  Reference Linux version 2.6.18                                               
  File /home/user/workdir/dvsdk_2_10_01_18_v2.6/linuxutils_2_24_03/packages/ti/c
irqk initialized                                                               
Creat queue id:0                                                               
queue id:0                                                                     
FileMngThread created                                                          
Creat queue id:32769                                                           
queue id:32769                                                                 
AlramThread created                                                            
Share memory init success                                                      
queue id:32769                                                                 
IPNC_DM368_2.6.0 (root@localhost.localdomain) (gcc version 4.2.                
queue id:65538                                                                 
Creat queue id:65538                                                           
queue id:65538                                                                 
Creat queue id:98307                                                           
queue id:98307                                                                 
Starting mounting local filesystems:                                           
CPU is DM368                                                                   
./av_server.out DM368 NTSC APPRO2A AEWB 1080P H264 5000000 VBR AUTO MENUOFF &  
Check_device_version : DEVICE VER = 1 !!                                       
CPU CurrentStatus is = 1                                                       
ApproDrvInit: 7                                                                
Creat queue id:131076                                                          
queue id:131076                                                                
mount none on /dev/shm type tmpfs (rw,size=5M)                                 
none on /var/run type tmpfs (rw)                                               
none on /tmp type tmpfs (rw,sync)                                              
AVSERVER UI: Initializing.                                                     
Setting up networking ...rm: unable to remove `/etc/network/run': Read-only film
Starting hotplug subsystem:                                                    
 CLK Hz,                                                                       
 ARM   Hz =  432000000                                                         
 DDR   Hz =  340000000                                                         
 VPSS  Hz =  340000000                                                         
 IMCOP Hz =  340000000                                                         
 DRV LDC: GetConfig 0003 0x0                                                   
 [OSA_FILE ] Reading file [/mnt/nand/IMG_Paramset.bin] ... ERROR               
IMAGE TUNE: Paramset File is not available..... Setting DEFAULT parameter      
CONFIGURING AVSERVER FOR DM368 .....                                           
queue id:65538                                                                 
==========>>>> Start X,Y = 52,18                                               
 Sensor Mode Info,                                                             
 Width      = 2024                                                             
 Height     = 1124                                                             
 fps        =   24                                                             
 Bin Enable =    0                                                             
 Sensor Frame Timing Info,                                                     
 fps                  = 24                                                     
 t_frame (ns)         = 41666668.000000                                        
 t_row   (ns)         = 30458.333984                                           
 t_pclk  (ns)         = 10.416667                                              
 W                    = 2024                                                   
 H                    = 1124                                                   
 SW                   = 1406                                                   
 SD                   = 0                                                      
 HB                   = 450                                                    
 VB                   = 243                                                    
 HBmin                = 450                                                    
 VBmin                = 9                                                      
 f_pclk               = 96000000                                               
 shutterOverhead (ns) = 4437.500000                                            
 col_size             = 2024                                                   
 row_size             = 1124                                                   
 col_bin              = 0                                                      
 row_bin              = 0                                                      
 col_start            = 88                                                     
 row_start            = 348                                                    
 pll_M                = 16                                                     
 pll_N                = 1                                                      
 pll_DIV              = 1                                                      
   pci      [success]                                                          
############SPI OPEN###########                                                
spi mode: 16                                                                   
bits per word: 8                                                               
max speed: 12000000 Hz (12000 KHz)                                             
############SET REG###########                                                 
############OPEN END###########                                                
================> 512, 0, 1735                                                 
APPRO Setting Applied                                                          
DavinciDisplay DavinciDisplay.1: Before finishing with S_FMT:                  
layer.pix_fmt.bytesperline = 640,                                              
 layer.pix_fmt.width = 640,                                                    
 layer.pix_fmt.height = 480,                                                   
 layer.pix_fmt.sizeimage =460800                                               
DavinciDisplay DavinciDisplay.1: pixfmt->width = 640,                          
 layer->layer_info.config.line_length= 640                                     
 FR : 0 users registered from exsiting face album                              
IPNC_DM368_2.6.0 (root@localhost.localdomain) (gcc version 4.2.                
IPNC AUTO_IRIS = 1 (0:Manual,1:Auto)#####################                      
APPRO 2A Created                                                               
XXXXX IAE_CMD_SET_CONFIG XXXXX                                                 
 222 Aew_Cal_LoadParam: dfc check sum success                                  
 (nand offset: 0x00500010, size: 0x0000181c, checksum: 0x000107d5)             
################DFC ret=0##################                                    
   usb      [success]                                                          
   isapnp   [success]                                                          
   ide      [success]                                                          
Simple mixer control 'PGA',0                                                   
  Capabilities: cvolume                                                        
  Capture channels: Mono                                                       
  Limits: Capture 0 - 3                                                        
  Mono: Capture 2 [67%]                                                        
Simple mixer control 'Mono DAC',0                                              
  Capabilities: pvolume pvolume-joined                                         
  Playback channels: Mono                                                      
  Limits: Playback 0 - 63                                                      
  Mono: Playback 47 [75%]                                                      
SystemInit success                                                             
Schedule manager init success                                                  
   input    [success]                                                          
   scsi     [success]                                                          
APPROPHO AEW TRIAL VERSION(V2.01) !!!                                          
APPROPHO AEW DATE LINE 2011/12                                                 
XXXXX DRV_imgsSetAgain() Error(0)                                              
 ~~~ fn: Aew_Cal_LoadAutoIrisParam, start ~~~                                  
 ~~~ fn: Aew_Cal_LoadAutoIrisParam, nand_addr 0x340000 ~~~                     
 !!! FAIL, Checksum error, Aew_Cal_LoadAutoIrisParam, tmp_chksum 1020, iris_chk
 !!!!!! FAIL, autoiris default value 0 !!!!!!                                  
Enable APPRO_DBG Function @@@@@@@@@@@@@@@@@@@@@                                
--->Chip init PASS                                                             
ND Init                                                                        
Starting portmap daemon: portmap.                                              
Starting internet superserver: inetd.                                          
io scheduler deadline registered                                               
io scheduler cfq registered                                                    
TI DaVinci EMAC: kernel boot params Ethernet address: 00:0C:0C:A0:00:24        
 sbulla: unknown partition table                                               
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).                       
loop: loaded (max 8 devices)                                                   
tun: Universal TUN/TAP device driver, 1.6                                      
tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>                         
CSLIP: code copyright 1989 Regents of the University of California             
netconsole: not configured, aborting                                           
PPP generic driver version 2.4.2                                               
PPP Deflate Compression module registered                                      
Davinci EMAC MII Bus: probed                                                   
MAC address is 00:0C:0C:A0:00:24                                               
TI DaVinci EMAC Linux version updated 4.0                                      
davinci-mmc davinci-mmc.0: Supporting 4-bit mode                               
davinci-mmc davinci-mmc.0: Using DMA mode                                      
usbcore: registered new driver usbfs                                           
usbcore: registered new driver hub                                             
musb_hdrc: version 6.0, cppi-dma, peripheral, debug=0                          
musb_hdrc musb_hdrc: No DMA interrupt line                                     
musb_hdrc: USB Peripheral mode controller at c38fa000 using DMA, IRQ 12        
Loading iSCSI transport class v1.1-646.<5>iscsi: registered transport (tcp)    
 sbulla: unknown partition table                                               
mkdosfs 3.0.6 (04 Oct 2009)                                                    
unable to get drive geometry, using default 255/63                             
/dev/sbulla has 255 heads and 63 sectors per track,                            
logical sector size is 512,                                                    
using 0xf8 media descriptor, with 1024 sectors;                                
file system has 2 12-bit FATs and 4 sectors per cluster.                       
FAT size is 1 sector, and provides 247 clusters.                               
Root directory contains 512 slots.                                             
Volume ID is 7ea6627b, no volume label.                                        
queue id:0                                                                     
umount: /mnt/mmc: not mounted                                                  
killall: dhcpcd: no process killed                                             
rm: cannot remove `/var/run/dhcpcd-eth0.pid': No such file or directory        
Error -3 while decompressing!                                                  
ay:eth0, 1A8C0, 0, 1                                                           
net_search_gateway:eth0, 1A8C0, 0, 1                                           
net_search_gateway:eth0, 0, FE01A8C0, 3                                        
ERROR: Module g_file_storage does not exist in /proc/modules                   
g_file_storage gadget: File-backed Storage Gadget, version: 28 November 2005   
g_file_storage gadget: Number of LUNs=1                                        
g_file_storage gadget-lun0: ro=0, file: /dev/sbulla                            
system_server/541[CPU#0]: BUG in local_bh_enable at kernel/softirq.c:196       
ApproDrvInit: 9                                                                
queue id:131076                                                                
...done initializing                                                           
Play this stream using the URL:                                                
ApproDrvInit: 8                                                                
queue id:131076                                                                
...done initializing                                                           
Play this stream using the URL:                                                
ApproDrvInit: 2                                                                
queue id:131076                                                                
ApproDrvInit: 6                                                                
queue id:131076                                                                
...done initializing                                                           
Play this stream using the URL:                                                
ApproDrvInit: 10                                                               
queue id:131076                                                                
...done initializing                                                           
Play this stream using the URL:                                                
...done initializing                                                           
Play this stream using the URL:                                                
ApproDrvInit: 3                                                                
queue id:131076                                                                
queue id:0                                                                     
queue id:32769                                                                 
[01/Jan/2000:02:35:24 +0000] boa: server version Boa/0.94.13                   
[01/Jan/2000:02:35:24 +0000] boa: server built Jun 30 2011 at 15:50:11.        
[01/Jan/2000:02:35:24 +0000] boa: starting server pid=809, port 80             
queue id:0                                                                     
Error -3 while decompressing!                                                  
Error -3 while decompressing!                                                  
Upnp port is 0                                                                 
UPnP Initialized OK ip=, port=49152                               
desc_doc_url =                           
UpnpRegisterRootDevice failure.                                                
error code = -108                                                              
device advertisement failure.                                                  
INIT: Entering runlevel: 3                                                     
MontaVista(R) Linux(R) Professional Edition 5.0.0 (0702774)                    
DM368_IPNC login: root                                                         
Welcome to MontaVista(R) Linux(R) Professional Edition 5.0.0 (0702774).        
login[837]: root login  on `console'                                           
 Module   | Avg Time/Frame | Frame-rate | Total time | Total Frames |          
 CAPTURE  |          33.27 |      30.06 |      29977 |          901 |          
 ENCODE0  |          32.56 |      30.71 |      29307 |          900 |          
 STREAM   |           0.28 |    3543.31 |        254 |          900 |          
 OSD0     |           0.05 |   21195.12 |         41 |          869 |          
 AEWB     |           3.96 |     252.24 |       3342 |          843 |          

Also, I would like to know few more things as follows,

a.) As of now, I am getting good image quality on the camera.But, the GUI has "eval version"
    written on the video stream. How long does the eval version last for, How would be the image
    quality after the evaluation period is over
b.) How can we improve the image quality once the eval period is over
    How can we develop our own image  processing algorithms on the camera
c.) How can we integrate those algorithms on the DM368 board and software package which we have got from Appro. What kind of environment setup is
    required for that ??
d.) There's a "Tuning Tool" provided with the development kit.How can we use that tool to improve image quality on the current set up.Is there any document
which explain how we can make use of that tool to tune image quality.