S32K LPSPI CIRFIFO Example

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S32K LPSPI CIRFIFO Example

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petervdperk
NXP Employee
NXP Employee

Hi on the S32K344 For an SPI SD Card I would like to the use to MATCFG (Match0) and CIRFIFO functionality to get an interrupt when the SD card gets out of the busy state which means that DO gets high (0xFF).

It seems that the S32K3 LPSPI RTD doesn't implement the CIRFIFO functionality is there are example available on how to enter CIRFIFO to send repeated data (0xFF) and wait until DO matches (0xFF) using MATCFG and an interrupt and then exit CIRFIFO cleanly?

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