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needing low speed SPI communication

Question asked by keshavarz.abbas on Apr 12, 2015
Latest reply on Apr 15, 2015 by keshavarz.abbas
Hello everyone!

I am using STM32F103RET for my project. I need to communicate by SPI with a low speed digital device with the speed of at most 1KHz clock. At the same time, I need to have my own cpu clock as high as possible.
As I saw at the reference manual, I just can decrease SPI clock to APB2/256 which is too high ( at the best situation, CPU_clock/16/256 -> 72MHz/16/256 = 17KHz - by loosing APB2 speed to CPU_clock/16 )
have I hopefully, missed a point? Is there any way to have lower speed SPI with keeping system speed high?

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