[En-Nut-Discussion] Using UFLASH and MMC at same time....

[Ole Reinhardt]

Hello Rémi,

> I using UFLASH file system with succes, I have written  SPI bus driver to
> read AD7843 with this struct, using the new SPI bus.
> 
> NUTSPINODE nodeAds7843 = {
>     &spiBus0At91, /* Pointer to the bus controller driver. */
>     NULL, /* Optional pointer to device specific settings. */
>     2000000, /* SPI clock rate. */
>     3, /* SPI mode. */
>     8, /* SPI data bits. */
>     1   /* Chip select index. */
> }
> 
> So, how to add third device, a SD card reader, with PHAT file system?? I
> don't see any SD card driver using the new SPIBUS ?

You might have to write a little "intermediate" driver which itself
refers to the functions provided by spi_mmc.c and acts as a little
hardware abstraction layer.

I will send you a private mail with a little test project which uses
both, the dataflash and the mmc card on the same spi-bus. To use the mmc
spi_mmc driver on a sam7 CPU some little changes in spibus_at91.c and
spi_mmc.c are needed, I'll include them in my mail too.

This project is intended to be used on our eNet-sam7X board
(http://www.embedded-it.de/en/microcontroller/eNet-sam7X.php) but should
work on any SAM7 cpu and others too (with little modifications).

Regards,

Ole Reinhardt

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