Hi
MQX 4.x includes a SPI driver. This driver supports the operation master mode. If enabled in user configuration, the SPI device drivers are installed during the BSP startup code as “spi0:” (or “spiX:” where X is index of the SPI module used). The SPI driver is significantly rewritten in the MQX 4.0, so that there is no distinct interrupt or polled driver type. See I/O User Guide for details.
On Kinetis and Vybrid platforms, the driver uses DMA to function. there is a simpler example application available in MQX, this example shows how to read/write data from/to external SPI EEPROM. Additional HW setup is needed.
You can find this example at the next path: / mqx/examples/spi
Regards
Daniel
