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32-bit SPI (ADC AD7764) How to communicate with it??

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draqon

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Good afternoon!
I want to communicate with AD7764, which have 32-bit SPI, ADC - master, baudrate ~10Mbit/s.
FPGA use is undesirable for me.

I wanna use MSP430 or Picolo (F28x) MCU, but it have 8- and 16-bit SPI.

Prompt me please any decision, probably there are MCUs with 32-bit SPI, or it is possible to accept somehow such stream on F28x?

Sorry for my english(
 

You just use the 8bit stream and read/write 4 bytes at a time or use 16bit and read/write 2*16bits=4 bytes. You don't need "32bit SPI". It will work fine.
 
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    draqon

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Thus, the processor accepts 16 bits, on interruption I pull them out from the buffer, and further there is a reception of following 16 bits, again interruption. Correctly?
Adjustment DMA in such mode is possible?
 

Yes, correctly.
I don't know those procesors, but if you can use DMA for SPI then it should work with DMA.
 
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