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即使一小步也有新高度！
就像當(dāng)年學(xué)單片機(jī)一樣，懷著無(wú)比崇拜和好奇的心情搞ARM9,大體看了下ARM9的架構(gòu)，和ARM7基本是一樣的，唯一不同的是他的boot是要單獨(dú)燒寫(xiě)的，就是PC機(jī)的bios一樣，忙碌了一下午，聽(tīng)著歌，研究怎么燒寫(xiě)，主要是剛開(kāi)始路子沒(méi)選對(duì)，走了彎路，其實(shí)直接用jtag就行，直接燒寫(xiě)，很簡(jiǎn)單的，我燒的步驟如下：
第一歩： 加載預(yù)先編譯的啟動(dòng)文件，
第二部選擇FLASH:norflash,或者NAND flash,
第三部：燒寫(xiě)
燒寫(xiě)完畢之后，提示你成功，然后你重新上電，串口就打印如下：成功了！
*** Warning - bad CRC or NAND, using default environment
##### EmbedSky BIOS for SKY2440/TQ2440 #####
Press Space key to Download Mode !
##### Boot for Nor Flash Main Menu #####
##### EmbedSky USB download mode #####
[1] Download u-boot or STEPLDR.nb1 or other bootloader to Nand Flash
[2] Download Eboot (eboot.nb0) to Nand Flash
[3] Download Linux Kernel (zImage.bin) to Nand Flash
[5] Download CRAMFS image to Nand Flash
[6] Download YAFFS image (root.bin) to
Nand Flash
[7] Download Program (uCOS-II or TQ2440_Test) to SDRAM and Run it
[8] Boot the system
[9] Format the Nand Flash
[0] Set the boot parameters
[a] Download User Program (eg: uCOS-II or TQ2440_Test)
Download LOGO Picture (.bin) to Nand Flash
[l] Set LCD Parameters
[n] Enter TFTP download mode menu
[o] Download u-boot to Nor Flash
[r] Reboot u-boot
[t] Test Linux Image (zImage)
[q] quit from menu
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