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SDHC 4bit bus

Question asked by Adrian Rockall on Mar 18, 2015
Latest reply on May 13, 2015 by jeremyzhou

Hi,

 

I think there is a shortfall in the KSDK / Processor Expert SDHC component or driver. Not sure if it is a PEx or KSDK problem so this might be in the wrong place.

 

I set the bus width to 4 bits in the Init Configurations tab of the fsl_sdhc component but it has no effect on the driver.

It creates "sdhc_buswidth_t fsl_sdhc1_busWidth0 = kSdhcBusWidth4Bit;" in fsl_sdhc1.c but that is never used and SDHC_DRV_Init has the line SDHC_DRV_SetBusWidth(instance, kSdhcBusWidth1Bit);.

 

Best regards,

Adrian.

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