Re: [ECOS] PowerPC FEC interrupt handler problem

Re: [ECOS] PowerPC FEC interrupt handler problem

[Wolfgang Heppner]

Hi,

sorry, but i did not dive far enough into the interrupt handling,
because the API functions worked for me (even when i wrote my own
drivers!). 

I have only one hint: The FEC driver only installs an interrupt handler,
if _FEC_USE_INTS is defined, so check this first.

Regards
Wolfgang



Khasim wrote:
> 
> Hi .
> Thanks for your kind responce. I have one more doudbt
> 
> See When an interrupt comes the control should go to 0x500 location and then
> it has to branch to the appropriate handler based on the interrupt.
> 
> I dont find any such code which is doing this . Please tell me how interrupt
> handler registration is done here.
> I saw the function  cyg_drv_interrupt_create
> 
> Which is creating an interrupt object but how this will be used when an
> interrupt occurs.
> 
> What all parts of the code I need to change If I have to incorparate the
> changes required for my board compared to viper board.
> 
> Thanks in anticipation
> 
> Khasim

-- 
Wolfgang Heppner

High Speed Kamerasysteme  - Abt. Bildsensorik (ESY-B)
High Speed Camera Systems - Dept. Electronic Imaging (ESY-B)

Fraunhofer                            
Institut Integrierte Schaltungen
Angewandte Elektronik

Am Wolfsmantel 33 
91058 Erlangen       
(Germany)

Tel:   +49 (0) 9131 776 528
Fax:   +49 (0) 9131 776 598

email: hep@iis.fhg.de
web:   http://www.iis.fhg.de

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Re: [ECOS] PowerPC FEC interrupt handler problem

[Khasim]

Hi .
Thanks for your kind responce. I have one more doudbt

See When an interrupt comes the control should go to 0x500 location and then
it has to branch to the appropriate handler based on the interrupt.

I dont find any such code which is doing this . Please tell me how interrupt
handler registration is done here.
I saw the function  cyg_drv_interrupt_create

Which is creating an interrupt object but how this will be used when an
interrupt occurs.

What all parts of the code I need to change If I have to incorparate the
changes required for my board compared to viper board.

Thanks in anticipation

Khasim

----- Original Message -----
From: "Wolfgang Heppner" <hep@iis.fhg.de>
To: "Khasim" <khasim@iwavesystems.com>
Cc: "eCos-discuss" <ecos-discuss@sources.redhat.com>
Sent: Thursday, July 11, 2002 1:07 PM
Subject: Re: [ECOS] PowerPC FEC interrupt handler problem


> Khasim wrote:
> >
> > Greetings.
> >
> > I am porting ecos to Mpc860 based processor. I have built the TCP/IP
stack
> > and FEC driver. The FEC interrupt handler is not at all called when I
ping
> > from other system.
>
> When you are using your own hardware, you may have to adapt the FEC
> driver.
> The driver is currently written for the Viper board. Look in function
> fec_eth_init (file if_fec.c) for the section "// Reset PHY" and change
> the IOs appropriate to your hardware design (as a quick workaround).
>
> >
> > I am getting one more warning saying ESA unknown.Can any body say what
is
> > ESA why it is telling ESA unknown?
> >
>
> ESA is the Ethernet- (or MAC-) address (i think so). If the init
> function does not find a Flash configuration (= ESA unknown) it uses a
> default address. I have to fix this myself, but for now this
> configuration is working for me.
>
> > How exactly the FEC interrupt handler is called when an interrupt occurs
can
> > anybody explain.
> >
> > With regards.
> >
> > Khasim
> >
> > --
> > Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> > and search the list archive: http://sources.redhat.com/ml/ecos-discuss
>
> --
> Wolfgang Heppner
>
> High Speed Kamerasysteme  - Abt. Bildsensorik (ESY-B)
> High Speed Camera Systems - Dept. Electronic Imaging (ESY-B)
>
> Fraunhofer
> Institut Integrierte Schaltungen
> Angewandte Elektronik
>
> Am Wolfsmantel 33
> 91058 Erlangen
> (Germany)
>
> Tel:   +49 (0) 9131 776 528
> Fax:   +49 (0) 9131 776 598
>
> email: hep@iis.fhg.de
> web:   http://www.iis.fhg.de
>
> --
> Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> and search the list archive: http://sources.redhat.com/ml/ecos-discuss
>
>


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Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
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Re: [ECOS] PowerPC FEC interrupt handler problem

[Wolfgang Heppner]

Khasim wrote:
> 
> Greetings.
> 
> I am porting ecos to Mpc860 based processor. I have built the TCP/IP stack
> and FEC driver. The FEC interrupt handler is not at all called when I ping
> from other system.

When you are using your own hardware, you may have to adapt the FEC
driver.
The driver is currently written for the Viper board. Look in function
fec_eth_init (file if_fec.c) for the section "// Reset PHY" and change
the IOs appropriate to your hardware design (as a quick workaround).

> 
> I am getting one more warning saying ESA unknown.Can any body say what is
> ESA why it is telling ESA unknown?
>

ESA is the Ethernet- (or MAC-) address (i think so). If the init
function does not find a Flash configuration (= ESA unknown) it uses a
default address. I have to fix this myself, but for now this
configuration is working for me.
 
> How exactly the FEC interrupt handler is called when an interrupt occurs can
> anybody explain.
> 
> With regards.
> 
> Khasim
> 
> --
> Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> and search the list archive: http://sources.redhat.com/ml/ecos-discuss

-- 
Wolfgang Heppner

High Speed Kamerasysteme  - Abt. Bildsensorik (ESY-B)
High Speed Camera Systems - Dept. Electronic Imaging (ESY-B)

Fraunhofer                            
Institut Integrierte Schaltungen
Angewandte Elektronik

Am Wolfsmantel 33 
91058 Erlangen       
(Germany)

Tel:   +49 (0) 9131 776 528
Fax:   +49 (0) 9131 776 598

email: hep@iis.fhg.de
web:   http://www.iis.fhg.de

-- 
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss

[ECOS] PowerPC FEC interrupt handler problem

[Khasim]

Greetings.

I am porting ecos to Mpc860 based processor. I have built the TCP/IP stack
and FEC driver. The FEC interrupt handler is not at all called when I ping
from other system.

I am getting one more warning saying ESA unknown.Can any body say what is
ESA why it is telling ESA unknown?

How exactly the FEC interrupt handler is called when an interrupt occurs can
anybody explain.

With regards.

Khasim


-- 
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss