x-loader 的README中有如下描述：
1. Use Texas Instruments IFT to sign x-load.bin. This results in a
signed image called x-load.bin.ift.
2. Use Texas Instruments FlashPrep to generate a .out file using
FlashWriterNand and specifying 0 as nand target address.
3. Use Texas instrumnets Code Composer Studio to run the .out file
which flashes x-load.bin.ift to Nand flash.
上述流程中第2步，通过什么方式产生 .out 文件，提到的FlashPrep是什么？
谢谢！
