Re: [U-Boot] How to handle binary data file in u-boot

Lv Terry-R65388 wrote:

Hi Experts,

We have implemented an display utilty in u-boot and this utlity

needs a waveform file.

We are planning to release this display utility, but we don't know

how to do with the waveform file. The file is as large as 800KB.

Now we just put the waveform file on mmc and read it out in boot.

Is there any better way to deliver this binary waveform file as part

of the bootloader? How is this case typically handled?

Because the file is raw data, it is normally not linked to u-boot code. I mean, you can convert the data in a C-array and link it to the bootloader, but is it worth ?

The same issue is for images used as splashscreen in u-boot, in some case quite huge (but not so big as yours). They are often saved in different areas (or after the bootloader), but not linked together.

You could easier concatenate u-boot and your waveform data in a single file using "cat", padding bytes if you need to reserve some areas, and probably you reach easier the same goal, if you want only to deliver a single file containing both bootloader and data.

Best regards, Stefano Babic