LPC2148 SD Card Driver

sambha — Wed, 14 Feb 2018 05:32:42 GMT

Hi, I am trying to get SD Card working on my LPC2148 Board.

I came across this link

https://www.nxp.com/docs/en/application-note/AN10406.pdf (which is pretty old). I compiled it but I dont see any file creation or LED blinking to indicate anything is hapenning.

My SD Card is connected on the SPI1 interface.

Is there an updated Driver ?

Thanks

Sam

Re: LPC2148 SD Card Driver

CarlosCasillas — Thu, 15 Feb 2018 22:46:26 GMT

Hi Sam,

When using legacy SD card drivers, it is common that they will have some issues when trying to communicate with newer SD cards, like SDHC.

In this case, you could try using the driver as is with Standard Capacity cards (2GB or less), or applying some modifications to the driver to be able to communicate with High Capacity cards (4 to 32 GB), as the mentioned on the following link:

https://stackoverflow.com/questions/8080718/sdhc-microsd-card-and-spi-initialization

This is more common with SPI-based drivers rather than SD Host Controller drivers.

Hope this will be useful for you.

Best regards!

/Carlos

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topic LPC2148 SD Card Driver in MCUXpresso General

LPC2148 SD Card Driver

Re: LPC2148 SD Card Driver