This is the mail archive of the
ecos-patches@sourceware.org
mailing list for the eCos project.
Re: HELP : SUPPORT FOR A91SAM7X256
hello,
thanks for your support.
thanks & regards
vibi sreenivasan
On Thu, 2008-08-28 at 18:35 +1200, Tom Deconinck wrote:
> On Thu, Aug 28, 2008 at 5:41 PM, Andrew Lunn <andrew@lunn.ch> wrote:
> > On Thu, Aug 28, 2008 at 11:16:16AM +0530, vibisreenivasan wrote:
> >> hello,
> >> How can i know which all peripherals are already supported for
> >> at91sam7x256.
> >> actually i am looking at
> >> I2C
> >> SPI
> >> ETHERNET
> >
> > Look at the source code tree? If you are going to use eCos you will
> > need to do this anyway.
> >
> > This will partially answer your question. It is taken from
> > packages/ecos.db.
> >
> > Andrew
> >
> > target at91sam7xek {
> > alias { "Atmel AT91SAM7XEK evaluation board" at91_at91sam7xek }
> > packages { CYGPKG_HAL_ARM
> > CYGPKG_HAL_ARM_AT91
> > CYGPKG_HAL_ARM_AT91SAM7
> > CYGPKG_HAL_ARM_AT91SAM7XEK
> > CYGPKG_IO_SERIAL_ARM_AT91
> > CYGPKG_DEVS_FLASH_AT91
> > CYGPKG_DEVS_SPI_ARM_AT91
> > CYGPKG_DEVICES_WATCHDOG_ARM_AT91WDTC
> > CYGPKG_DEVS_USB_AT91
> > CYGPKG_DEVS_ETH_PHY
> > CYGPKG_DEVS_ETH_ARM_AT91
> > }
> > description "
> > The at91sam7xek target provides the packages needed to run eCos on an
> > Atmel AT91SAM7X-EK evaluation board."
> > }
> >
> As stated in Andrew's mail: look in the ecos.db file.
>
> As you can see above:
>
> CYGPKG_DEVS_SPI_ARM_AT91: the SPI peripheral is supported
> CYGPKG_DEVS_ETH_PHY and CYGPKG_DEVS_ETH_ARM_AT91: ethernet is supported
>
> The i2c peripheral is not supported, I wrote a driver for it a couple
> of months ago, but I changed jobs since and I don't think my previous
> employer will be pushing it upstream any time soon.
> Be aware that the hardware implementation of i2c (or TWI interface) is
> kinda tricky (in Tx mode, you need to be able to get data to it fast
> enough!)
>
> Tom
>