I am using Kinetis Design Studio with a K60 chip. I have a touch screen that needs to be initialized via SPI at 10 MHz or less. The touch screen can communicate at 30 MHz after initialization. I have a bus clock speed of 60 MHz and need to change my SPI prescaler divider from 6 to 2 (10 MHz to 30 MHz) after I run my initialization code. I used processor expert (SyncroMaster) to configure my SPI port. Please advise how I should change my SPI bus speed after the touch screen has been initialized.