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SPI with manual SS (MC9S12XDT512 - MC33810)

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SPI with manual SS (MC9S12XDT512 - MC33810)

‎09-29-2008 04:22 PM
1,334 Views
ernestsnaith
Contributor I
Is it possible to have manual control of the SS pin while using SPI. I would like to interface with a 16 bit SPI devise (MC33810) where the SS signal is required but it must not return to idle between transmission of the two bytes. I have seen this devise used with the same microcontroller so there is presumably a way of doing it but i dont have access to the code.
 
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‎09-29-2008 05:01 PM
336 Views
ernestsnaith
Contributor I
Got it working. With SS output turned off (SPICR2_MODFEN = 0) SS pin is controlled as in GPIO mode. I had a mistake in my code for original test of this.
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