TI中文支持网hi，您好！
请问我用的SD卡烧写NAND时，在fatls mmc 1后，出现的SD卡文件列表 中会是两个boot.scr,然后是boot.cmd,MLO,u-boot.bin,uImage,u-boot.min.nand,u-boot-nand.bin,logo.bmp，其中一个会无法显示，进行烧写操作也没有响应（在U-BOOT命令行中就感觉缺少了一个文件，无法一次烧写完整的NAND镜像）?请问是什么原因？谢谢！
Louis：
最好把串口日志贴一下，另外关于SD卡烧写NAND的具体说明，请查阅：http://processors.wiki.ti.com/index.php/TI81XX_PSP_UBOOT_User_Guide
Flashing 1st stage to NAND from 2nd stage in SD bootFlash U-Boot-MIN for NAND (u-boot.min.nand) to NAND by executing the following commands:TI8148_EVM# mmc rescan 0TI8148_EVM# mw.b 0x81000000 0xFF 0x20000TI8148_EVM$ fatload mmc 0 0x81000000 u-boot.min.nandTI8148_EVM# nand erase 0x0 0x20000TI8148_EVM# nand write.i 0x81000000 0x0 0x20000If no error messages are displayed the 1st stage of NAND boot has been successfully transferred to NAND.Flashing 2nd stage to NAND from 2nd stage in SD bootFlash the 2nd stage U-Boot (u-boot.bin) to NAND by executing the following commands:TI8148_EVM# mmc rescan 0TI8148_EVM# mw.b 0x81000000 0xFF 0x20000TI8148_EVM$ fatload mmc 0 0x81000000 u-boot.binTI8148_EVM# nand erase 0x20000 0x60000TI8148_EVM# nand write.i 0x81000000 0x20000 0x60000If no error messages are displayed the 2nd stage of NAND boot has been successfully transferred to NAND.
