TDA2PXEVM: How does A15 access SPI interface

terence xia

Genius 3105 points

Part Number: TDA2PXEVM

Hello,

We use the TDA2PX as spi slave, and communicate with spi master. So, how does A15 access SPI to get the spi data?

Thanks

Terence

over 6 years ago

0 Yordan Kamenov over 6 years ago

TI__Mastermind 42515 points

Hi Terence,

do you run RTOS or Linux on A15?

Regards,

Yordan

0 terence xia over 6 years ago in reply to Yordan Kamenov

Genius 3105 points

Hi Yordan,

We run linux on A15.

Thanks

Terence

0 terence xia over 6 years ago in reply to Yordan Kamenov

Genius 3105 points

Hi Yordan,

We know that it can read/write through ioctl based on spi driver. While, if the spi buffer is too small,how do we move the completed data to nandflash. Who will do the reordered thing?

Thanks

Terence

0 David Huang over 6 years ago in reply to terence xia

TI__Intellectual 2440 points

Hi Terence,

I saw this is marked as resolved already, did you find your answers already?

Based on your initial question, SPI drivers manage allocation of the data buffers and their size, and submit the buffers in SPI transfers. These transfers are handled by the SPI controller driver in submission order.

Can you clarify what you mean by reordering, and who is writing to NAND?

Thanks,

David

0 David Huang over 6 years ago in reply to David Huang

TI__Intellectual 2440 points

Hi Terence,

I haven't heard back from you in a while, so I'm assuming you were able to resolve your issue.

If not, just post a reply below (or create a new thread if the thread has locked due to time-out).

Thanks,

David

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TDA2PXEVM: How does A15 access SPI interface