what's the format of X-Loader.bin.ift file?

OMAP_mipi

Other Parts Discussed in Thread: OMAP3530

I am writing my own flashing tool under CCS4 to burn my X-Loader to the NAND. I want to treat the X-Loader as a data stream so that the tool can write the data block by block to the NAND. THe problem is: what is the format of X-Loader.bin.ift? can I process it like a HEX file usually seen in a microcontroller XIP flash? Anybody know where I can find the document?

Thanks,

over 15 years ago

0 Bernie Thompson TI over 15 years ago

TI__Mastermind 41665 points

I believe the X-Loader.bin.ift file is a signed (denoted by .ift) raw binary image (denoted by .bin) that should be written directly to the NAND, it is not an ascii hex file. Though I am not sure that the format itself is discussed anywhere, the writing of the X-Loader to flash is described in the PSP User's Guide from OMAP35x-PSP-SDK-03.00.00.02\docs\omap3530, where it is shown that the file is written directly to NAND through a sequence of U-Boot commands.

0 OMAP_mipi over 15 years ago in reply to Bernie Thompson TI

Prodigy 70 points

Thanks Bernie. But the problem is I am not using Uboot or UART download tool, I only have the option to download my customized X-loader to the NAND via JTAG. So I need to know the exact format of the ift file so that my program can OPEN it and write it to the NAND just like opening an ASCII file.

Thanks,

0 Nishanth Menon over 15 years ago in reply to OMAP_mipi

TI__Prodigy 520 points

OMAP_mipi said:

Thanks Bernie. But the problem is I am not using Uboot or UART download tool, I only have the option to download my customized X-loader to the NAND via JTAG. So I need to know the exact format of the ift file so that my program can OPEN it and write it to the NAND just like opening an ASCII file.

hope http://github.com/nmenon/omap-u-boot-utils/blob/d29bb1728e01ad8c74cec663bb2ec0b86db0881a/src/gpsign.c helps.

0 OMAP_mipi over 15 years ago in reply to OMAP_mipi

Prodigy 70 points

Thanks Nishanth. I guess I understand now after reading the code.

The original BIN file is stored in unsigned char (byte) format. then adding BIN length and SRAM address (8 bytes), and optional CH headers in sequence.

In my project, I can just open the IFT file in binary mode, and move them to NAND byte by byte.

Thanks for your help.

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what's the format of X-Loader.bin.ift file?