HELP : SUPPORT FOR A91SAM7X256

HELP : SUPPORT FOR A91SAM7X256

[vibisreenivasan]

hello,
	Is there any one working on ecos support for at91sam7x256.
	If there is no one i would like to take it up ,so please give
	me some inputs for doing this.
Thanks & regards
vibi sreenivasan

Re: HELP : SUPPORT FOR A91SAM7X256

[Andrew Lunn]

On Mon, Aug 25, 2008 at 04:01:00PM +0530, vibisreenivasan wrote:
> hello,
> 	Is there any one working on ecos support for at91sam7x256.
> 	If there is no one i would like to take it up ,so please give
> 	me some inputs for doing this.

It is in anonymous CVS.

   Andrew 

Re: HELP : SUPPORT FOR A91SAM7X256

[vibisreenivasan]

thanks.
On Mon, 2008-08-25 at 14:22 +0200, Andrew Lunn wrote:
> On Mon, Aug 25, 2008 at 04:01:00PM +0530, vibisreenivasan wrote:
> > hello,
> > 	Is there any one working on ecos support for at91sam7x256.
> > 	If there is no one i would like to take it up ,so please give
> > 	me some inputs for doing this.
> 
> It is in anonymous CVS.
> 
>    Andrew 
> 

Re: HELP : SUPPORT FOR A91SAM7X256

[vibisreenivasan]

hello,
	Thanks for your immediate support.
	What will the runtime memory footprint.

Thanks & regards
vibi sreenivasan


On Mon, 2008-08-25 at 14:22 +0200, Andrew Lunn wrote:
> On Mon, Aug 25, 2008 at 04:01:00PM +0530, vibisreenivasan wrote:
> > hello,
> > 	Is there any one working on ecos support for at91sam7x256.
> > 	If there is no one i would like to take it up ,so please give
> > 	me some inputs for doing this.
> 
> It is in anonymous CVS.
> 
>    Andrew 
> 

Re: HELP : SUPPORT FOR A91SAM7X256

[Andrew Lunn]

On Mon, Aug 25, 2008 at 06:20:50PM +0530, vibisreenivasan wrote:
> hello,
> 	What will the runtime memory footprint.

Depends on which parts of eCos you include and which parts of eCos
your application uses.

     Andrew

Re: HELP : SUPPORT FOR A91SAM7X256

[vibisreenivasan]

hello,
	How can i know which all peripherals are already supported for
at91sam7x256.
actually i am looking at 
I2C
SPI
ETHERNET

thanks & regards
vibi sreenivasan


On Mon, 2008-08-25 at 14:22 +0200, Andrew Lunn wrote:
> On Mon, Aug 25, 2008 at 04:01:00PM +0530, vibisreenivasan wrote:
> > hello,
> > 	Is there any one working on ecos support for at91sam7x256.
> > 	If there is no one i would like to take it up ,so please give
> > 	me some inputs for doing this.
> 
> It is in anonymous CVS.
> 
>    Andrew 
> 

Re: HELP : SUPPORT FOR A91SAM7X256

[Andrew Lunn]

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."
}

Re: HELP : SUPPORT FOR A91SAM7X256

[Tom Deconinck]

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

Re: HELP : SUPPORT FOR A91SAM7X256

[vibisreenivasan]

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
> 

Re: HELP : SUPPORT FOR A91SAM7X256

[vibisreenivasan]

hello,
	Is there any document or links on how to configure ecos on 
	linux host.
thanks & regards
vibi sreenivasan


On Thu, 2008-08-28 at 07:41 +0200, Andrew Lunn 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."
> }
> 

Re: HELP : SUPPORT FOR A91SAM7X256

[Peter Korsgaard]

>>>>> "Tom" == Tom Deconinck <t.deconinck@gmail.com> writes:

Hi Tom,

Tom> The i2c peripheral is not supported, I wrote a driver for it a couple
Tom> of months ago, but I changed jobs since and I don't think my previous
Tom> employer will be pushing it upstream any time soon.

You never know ;)

Tom> Be aware that the hardware implementation of i2c (or TWI interface) is
Tom> kinda tricky (in Tx mode, you need to be able to get data to it fast
Tom> enough!)

Yeah, the I2C core is pretty broken. That's also why they are removing
the Linux driver and telling people to use the bitbang driver instead:

http://thread.gmane.org/gmane.linux.drivers.i2c/2234

-- 
Bye, Peter Korsgaard