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I am going to start an embedded C project under Debian Linux in the near future.
And, I am thinking of trying to use an USB drive to store data.
What should I use as the size of buffer to save the data from memory to a file on the USB drive?
Is there a way to query the USB drive to get the size?
Tim S.
> I am going to start an embedded C project under Debian Linux in the near future.
Sounds like a regular project to me - if you mean the target runs Debian.
Or are you developing using Debian, and the target is bare metal (or an RTOS).
BeagleBoard.org - bone
Beaglebone Black Industrial running Linux Debian unknown version.
Edit2: I am just starting and the Debian version is working on being updated; not sure if I will wait till after the upgrade or use the current version.
Tim S.
IMO, this depends on the type of data being collected. But I would say that for a single "chunk" somewhere around 256 mb would probably be a good starting place since your board only has 512 mb of memory for both the OS and your program.Quote:
What should I use as the size of buffer to save the data from memory to a file on the USB drive?
You could start by simply piping the results of "df" (disk free) to your program or a file. And don't forget that you have a 4gb EEMC memory "card" built into the hardware.Quote:
Is there a way to query the USB drive to get the size?
I doubt that the actual version will make much difference, and you should be able to upgrade the OS after you obtain the hardware.Quote:
I am just starting and the Debian version is working on being updated; not sure if I will wait till after the upgrade or use the current version.
Use 'statvfs' syscall.
Thank you for the responses; I hope to start work on the project in the near future. I will likely learn enough to ask more questions.
Tim S.