I am making progress with my Kinetis/KSDK 1.3/PE 3.0.2 SD Card software for SPI on a FRDM-K22F Board (going to a custom K22 board in the future).
One question, how do I increase the SPI speed after I set it originally using the DSPI_DRV_MasterConfigureBus (I'm using Interrupt based SPI right now) to 375kbps? After the card is initialized, I should be able to run it at a faster data rate.
I want to run at at least 10 MHz.
I'm using a K22F and when I look at the SPI clocking options in PE, I see that the maximum (using the default Clock cfg.4) is 2.4 MHz although that's "From" and "To" says 12 MHz. Can anybody explain this?
I am hoping to publish my software here in a few days.