SPI bus configuration question

niprc_3742601 · ‎Oct 05, 2018

Hello,

Is there a way to configure a SPI bus to specify how many bits (not bytes) to transmit and word size? My requirement is a 100 bit transmit message with 10 bit word size.

Thanks!

Nikolay

MotooTanaka · ‎Oct 07, 2018

Hi,

First of all, you can open the datasheet of a component from its configuration dialog.

And in the data base, basic specification of that component is described.

I checked both SCB-SPI and Non-SCB-SPI

SCB-SPI: databit can be 4 to 16-bit

Non-SCB-SPI (SPIM): databit can be 3 to 16-bit

So I'm afraid that the standard SPI components do not support 100 bit transmission.

But you can set databit to 10 bit (your word) and with 10 transmissions,

you can send 100 bits.

moto

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SPI bus configuration question

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