準備

1. uboot在NORFLASH中，所以先設定設定撥碼開關，選擇NORFLASH啟動
2. 開啟SecureCRT，用於操作uboot，檢視串列埠資訊
3. 開啟DNW工具，傳送檔案

燒寫

重啟板卡，串列埠中顯示如下資訊，根據需要下載不同的bin檔案。

##### 100ask Bootloader for OpenJTAG #####
[n] Download u-boot to Nand Flash
[o] Download u-boot to Nor Flash
[k] Download Linux kernel uImage
[j] Download root_jffs2 image
 

[y] Download root_yaffs image
[d] Download to SDRAM & Run
[z] Download zImage into RAM
[g] Boot linux from RAM
[f] Format the Nand Flash
[s] Set the boot parameters
[b] Boot the system
[r] Reboot u-boot
[q] Quit from menu
Enter your selection: 

燒寫核心

1. 在uboot選單中輸入‘k’
2. 使用dnw工具的usb port->Transmit選單項，傳送uImage_4.3檔案
3. 在串列埠中檢視燒寫資訊

##### 100ask Bootloader for OpenJTAG #####
[n] Download u-boot to Nand Flash
[o] Download u-boot to Nor Flash
[k] Download Linux kernel uImage
[j] Download root_jffs2 image
[y] Download root_yaffs image
[d] Download to SDRAM & Run
[z] Download zImage into RAM
[g] Boot linux from RAM
[f] Format the
 
 Nand Flash
[s] Set the boot parameters
[b] Boot the system
[r] Reboot u-boot
[q] Quit from menu
Enter your selection: k
USB host is connected. Waiting a download.

Now, Downloading [ADDRESS:30000000h,TOTAL:1848742]
RECEIVED FILE SIZE: 1848742 (902KB/S, 2S)

NAND erase: device 0 offset 0x60000, size 0x200000
Erasing at 0x240000 -- 100% complete.
OK

NAND write: device 0 offset 0x60000, size 0x1c359c

Writing data at 0x223000 -- 100% complete.
 1848732 bytes written: OK

燒寫檔案系統

1. 在uboot選單中輸入“y”
2. 使用DNW傳送fs_qtopia_ts.yaffs2檔案
3. 串列埠中檢視燒寫資訊

##### 100ask Bootloader for OpenJTAG #####
[n] Download u-boot to Nand Flash
[o] Download u-boot to Nor Flash
[k] Download Linux kernel uImage
[j] Download root_jffs2 image
[y] Download root_yaffs image
[d] Download to SDRAM & Run
[z] Download zImage into RAM
[g] Boot linux from RAM
[f] Format the Nand Flash
[s] Set the boot parameters
[b] Boot the system
[r] Reboot u-boot
[q] Quit from menu
Enter your selection: y
USB host is connected. Waiting a download.

Now, Downloading [ADDRESS:30000000h,TOTAL:49769290]
RECEIVED FILE SIZE:49769290 (684KB/S, 71S)

NAND erase: device 0 offset 0x260000, size 0xfda0000
Skipping bad block at  0x00960000                                            
Skipping bad block at  0x031e0000                                            
Skipping bad block at  0x03fc0000                                            
Skipping bad block at  0x04a60000                                            
Skipping bad block at  0x06e00000                                            
Skipping bad block at  0x091c0000                                            
Skipping bad block at  0x09a60000                                            
Skipping bad block at  0x0d640000                                            
Skipping bad block at  0x0e480000                                            
Erasing at 0xffe0000 -- 100% complete.
OK

NAND write: device 0 offset 0x260000, size 0x2f76b40

Bad block at 0x960000 in erase block from 0x960000 will be skipped
Writing data at 0x30a6000 -- 100% complete.
 49769280 bytes written: OK