Dear E2E:
Thank you for your help.
I need to use SPI interface on OMAP-L138.
As I understood –SPI requires continuously transmit the data in order to receive the data from Slave. Is it correct?
If Master stops transmitting the data- the CLK is not generating and no receive data coming from Slave. Is it correct?
Thank you,
Boris Ruvinsky
Boris,
Here are responses to your questions
Yes essentially once the Master is initialized the clock is generated continuous. However data communication between master and slave depends on the enable and the chip select pins depending on which mode you are operating in. All the scenerios and modes are explained in detail in the Technical reference guide of OMAPL138 that can be found here
http://www.ti.com/product/omap-l138#doctype6
That is correct. Clock is generally turned off only after the entire master slave communication is complete. You can take a look at the BIOS and linux PSP for examples on SPI.
Regards,
Rahul
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