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MQX K60 SPI Slow, interrupt mode still calling polled functions

Question asked by Thomas Toh on Aug 9, 2012
Latest reply on Aug 10, 2012 by David E Seymour



I'm using the Kinetis Tower K60N512 board. I have run the LTC ADC board examples using the SPI ioctrl command. However, even if you set the mode to be interrupt, the MQX SPI int routine still calls the MQX polled functions for every character. This is slowing my performance.


Does anyone have an example of using the interrupt function to just read, or just write. The ioctrl read/write functions are not fast enough for me.