RTOS/TM4C129XNCZAD: How to Read data from a specific address of a Raw USB partition

sajmal baheesh

Part Number: TM4C129XNCZAD

Tool/software: TI-RTOS

Hi,

I have a use case of having two USB partitions and one is formatted as RAW (No file systems). Is it possible to use TI RTOS USB Library to read data from specific address of a raw partition from the usb?

Which low level libraries to use?

over 7 years ago

0 ToddMullanix over 7 years ago

TI__Guru* 96960 points

Hi Sajmal,

So you want to use FatFS on part of a USB and raw on the other part...correct?

Are you planning on using USBMSCHFatFs driver for the portion managed by the FatFs?

Todd

0 sajmal baheesh over 7 years ago in reply to ToddMullanix

Intellectual 290 points

yes,
Initially I want to read some data from raw partition and after that I want to use the other partition as mass storage device - FatFs. So I will be using USBMSCHFatFs.

0 ToddMullanix over 7 years ago in reply to sajmal baheesh

TI__Guru* 96960 points

Sajmal,

Sorry, I missed your response. I need to look at this a bit more before answering.

Todd

0 sajmal baheesh over 7 years ago in reply to ToddMullanix

Intellectual 290 points

Hi,
I was able to do it. one more question , how can I get USB Flash Drive's unique serial number?
Does this API helps? USBHCDStringDescriptorGet() ?
If yes ,Do you have any example code?

0 Ralph Jacobi over 7 years ago in reply to sajmal baheesh

TI__Guru*** 135355 points

Hello Sajmal,

If the unique serial number is part of the device descriptor (which from brief google searching, seems to be the case), then yes that API would be helpful. I don't believe we have an example using it, but it should be straightforward to implement.

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RTOS/TM4C129XNCZAD: How to Read data from a specific address of a Raw USB partition