Sam7X and the USB Device Port

[Eric Haver]

Hi all,

I have converted the Atmel CDC-Serial example to run under NutOS.

When I enable Endpoint0 in the UDP_IER and in UDP_CSR0, I can see it in the
UDP_IMR before I leave the interrupt, but on the next interrupt, the UDP_IMR
does not show Endpoint0 enabled.

Any ideas?

Thanks,

Eric
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[Eric Haver]

Eric Haver wrote:

I have converted the Atmel CDC-Serial example to run under NutOS.

When I enable Endpoint0 in the UDP_IER and in UDP_CSR0, I can see it in the
UDP_IMR before I leave the interrupt, but on the next interrupt, the UDP_IMR
does not show Endpoint0 enabled.

Any ideas?

Answering my own question here.
The ATMEL defines are not exactly the same as the NutOS Defines:
ATMEL:
#define     AT91C_CKGR_USBDIV_0                    (0x0 << 28) // (CKGR) Divider output is PLL clock output
#define     AT91C_CKGR_USBDIV_1                    (0x1 << 28) // (CKGR) Divider output is PLL clock output divided by 2
#define     AT91C_CKGR_USBDIV_2                    (0x2 << 28) // (CKGR) Divider output is PLL clock output divided by 4

In NutOS we see in at91_pmc.h:
#define CKGR_USBDIV_1               0x00000000  /*!< \brief Divider output is PLL clock output. */
#define CKGR_USBDIV_2               0x10000000  /*!< \brief Divider output is PLL clock output divided by 2. */
#define CKGR_USBDIV_4               0x20000000  /*!< \brief Divider output is PLL clock output divided by 4. */

So when I converted:
    AT91C_BASE_CKGR->CKGR_PLLR |= AT91C_CKGR_USBDIV_1 ;

it should have become:
    outr(CKGR_PLLR, inr(CKGR_PLLR) | CKGR_USBDIV_2) ;

instead of the obvious.

Einfach ist es immer, nicht.

*E

[uprinz]

 Hi Eric!

Did you advance with the USB Port for SAM7X? Are you planning to contribute it to the community? Or did you stop on that?
May be I can help and integrate it to NutOS trunk?

Regards, Ulrich


 


 

-----Original Message-----
From: Eric Haver <havereric1@...>
To: Ethernut User Chat (English) <en-nut-discussion@...>
Sent: Mon, 16 Mar 2009 8:48 pm
Subject: [En-Nut-Discussion] Sam7X and the USB Device Port










Hi all,

I have converted the Atmel CDC-Serial example to run under NutOS.

When I enable Endpoint0 in the UDP_IER and in UDP_CSR0, I can see it in the
UDP_IMR before I leave the interrupt, but on the next interrupt, the UDP_IMR
does not show Endpoint0 enabled.

Any ideas?

Thanks,

Eric
_______________________________________________
http://lists.egnite.de/mailman/listinfo/en-nut-discussion



 

_______________________________________________
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[Eric Haver]

Hey U!

Unfortunately, that project went bust with the economy,  I am working on a
Luminary Micro-Cortex 3 project for someone else.
Send me a private email address, I will send you what I had done, no
problem.

*E

On Wed, Jun 10, 2009 at 9:17 AM, <uprinz2@...> wrote:

>
>  Hi Eric!
>
> Did you advance with the USB Port for SAM7X? Are you planning to contribute
> it to the community? Or did you stop on that?
> May be I can help and integrate it to NutOS trunk?
>
> Regards, Ulrich
>
>
>
>
>
>
>
> -----Original Message-----
> From: Eric Haver <havereric1@...>
> To: Ethernut User Chat (English) <en-nut-discussion@...>
> Sent: Mon, 16 Mar 2009 8:48 pm
> Subject: [En-Nut-Discussion] Sam7X and the USB Device Port
>
>
>
>
>
>
>
>
>
>
> Hi all,
>
> I have converted the Atmel CDC-Serial example to run under NutOS.
>
> When I enable Endpoint0 in the UDP_IER and in UDP_CSR0, I can see it in the
> UDP_IMR before I leave the interrupt, but on the next interrupt, the
> UDP_IMR
> does not show Endpoint0 enabled.
>
> Any ideas?
>
> Thanks,
>
> Eric
> _______________________________________________
> http://lists.egnite.de/mailman/listinfo/en-nut-discussion
>
>
>
>
>
> _______________________________________________
> http://lists.egnite.de/mailman/listinfo/en-nut-discussion
>

_______________________________________________
http://lists.egnite.de/mailman/listinfo/en-nut-discussion

[uprinz]

 Hi!

Thanks, I got the code but was not available on the (long) weekend. I'll have a look inside and will start an integration soon.

Regards, Ulrich


 


 

-----Original Message-----
From: Eric Haver <havereric1@...>
To: Ethernut User Chat (English) <en-nut-discussion@...>
Sent: Wed, Jun 10, 2009 10:29 pm
Subject: Re: [En-Nut-Discussion] Sam7X and the USB Device Port










Hey U!

Unfortunately, that project went bust with the economy,  I am working on a
Luminary Micro-Cortex 3 project for someone else.
Send me a private email address, I will send you what I had done, no
problem.

*E

On Wed, Jun 10, 2009 at 9:17 AM, <uprinz2@...> wrote:

>
>  Hi Eric!
>
> Did you advance with the USB Port for SAM7X? Are you planning to contribute
> it to the community? Or did you stop on that?
> May be I can help and integrate it to NutOS trunk?
>
> Regards, Ulrich
>
>
>
>
>
>
>
> -----Original Message-----
> From: Eric Haver <havereric1@...>
> To: Ethernut User Chat (English) <en-nut-discussion@...>
> Sent: Mon, 16 Mar 2009 8:48 pm
> Subject: [En-Nut-Discussion] Sam7X and the USB Device Port
>
>
>
>
>
>
>
>
>
>
> Hi all,
>
> I have converted the Atmel CDC-Serial example to run under NutOS.
>
> When I enable Endpoint0 in the UDP_IER and in UDP_CSR0, I can see it in the
> UDP_IMR before I leave the interrupt, but on the next interrupt, the
> UDP_IMR
> does not show Endpoint0 enabled.
>
> Any ideas?
>
> Thanks,
>
> Eric
> _______________________________________________
> http://lists.egnite.de/mailman/listinfo/en-nut-discussion
>
>
>
>
>
> _______________________________________________
> http://lists.egnite.de/mailman/listinfo/en-nut-discussion
>

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