Re: Re: STM32F4 Discovery + LwIP

[Jerzy Dyrda <jerzdy at gmail dot com>]

Hello Valentin,


On Tuesday 25 of March 2014 10:04:07 John Dallaway wrote:

> On 25/03/14 08:26, Valentin BOUSSON wrote:

>

> > Today, I have a problem to set up *LwIP* on my *STM32F4DISCOVERY* with

> > the standard extension board.

> > (http://www.st.com/web/catalog/tools/FM146/CL1984/SC720/SS1462/PF255417)

> >

> > I tried a lot of thing, as using the default configuration for eCos,

> > adding packages "Ethernet common drivers" and "LwIP stack". No confilct

> > appears, but an the stack doesn't seem to work at all.

>

> At minimum, you will need to add the CYGPKG_DEVS_ETH_PHY and

> CYGPKG_DEVS_ETH_CORTEXM_STM32 hardware packages to the

> "stm32f4discovery" target description record in packages/ecos.db.

> Actually, it would be preferable to create a new target description

> record for STM32F4-Discovery with STM32F4DIS-EXT.

>

> You might also be necessary to modify the the hal_system_init() function

> in the STM32F4-Discovery platform HAL to setup the ethernet hardware.

> Compare with the hal_system_init() function from the STM32x0G platform HAL.

>

> With these changes in place, you should be able to create a new eCos

> configuration for lwIP based on the eCos "lwip_eth" packages template.


And you have to add some pins configuration due to fact that
STM32F4DISCOVERY board

doesn't any network interface.


In packages/hal/cortexm/stm32/stm32f4discovery/current/include/plf_io.h
please add such lines:


//=============================================================================

// Custom Ethernet pin mappings


#define CYGHWR_HAL_STM32_ETH_MII_TX_EN CYGHWR_HAL_STM32_PIN_ALTFN_OUT(
B, 11, 11, PUSHPULL, NONE, AT_LEAST(50) )

#define CYGHWR_HAL_STM32_ETH_MII_TXD0 CYGHWR_HAL_STM32_PIN_ALTFN_OUT(
B, 12, 11, PUSHPULL, NONE, AT_LEAST(50) )

#define CYGHWR_HAL_STM32_ETH_MII_TXD1 CYGHWR_HAL_STM32_PIN_ALTFN_OUT(
B, 13, 11, PUSHPULL, NONE, AT_LEAST(50) )


In packages/devs/eth/phy/current/cdl/phy_eth_drivers.cdl add missing PHY chip:


cdl_option CYGHWR_DEVS_ETH_PHY_LAN8720A {

display "SMSC LAN8720A"

flavor bool

default_value 0

compile -library=libextras.a LAN8720A.c

description "

Include support for SMSC LAN8720A"

}


and finally add new PHY i.e LAN8720A.c into directory ->
packages/devs/eth/phy/current/src


if you will have additional problems please ask I have already brought
up network interface on

STM32F4DISCOVERY + DM-STF4BB (AFAIK this is original name of base
board from Embest, now

as I see it's called STM32F4DIS-BB).



Best regards,

jerzy

2014-03-25 13:30 GMT+01:00 Jerzy Dyrda <jerzdy@gmail.com>:
> Hello Valentin,
>
>
> On Tuesday 25 of March 2014 10:04:07 John Dallaway wrote:
>
>> On 25/03/14 08:26, Valentin BOUSSON wrote:
>
>>
>
>> > Today, I have a problem to set up *LwIP* on my *STM32F4DISCOVERY* with
>
>> > the standard extension board.
>
>> > (http://www.st.com/web/catalog/tools/FM146/CL1984/SC720/SS1462/PF255417)
>
>> >
>
>> > I tried a lot of thing, as using the default configuration for eCos,
>
>> > adding packages "Ethernet common drivers" and "LwIP stack". No confilct
>
>> > appears, but an the stack doesn't seem to work at all.
>
>>
>
>> At minimum, you will need to add the CYGPKG_DEVS_ETH_PHY and
>
>> CYGPKG_DEVS_ETH_CORTEXM_STM32 hardware packages to the
>
>> "stm32f4discovery" target description record in packages/ecos.db.
>
>> Actually, it would be preferable to create a new target description
>
>> record for STM32F4-Discovery with STM32F4DIS-EXT.
>
>>
>
>> You might also be necessary to modify the the hal_system_init() function
>
>> in the STM32F4-Discovery platform HAL to setup the ethernet hardware.
>
>> Compare with the hal_system_init() function from the STM32x0G platform
>> HAL.
>
>>
>
>> With these changes in place, you should be able to create a new eCos
>
>> configuration for lwIP based on the eCos "lwip_eth" packages template.
>
>
> And you have to add some pins configuration due to fact that
> STM32F4DISCOVERY board
>
> doesn't any network interface.
>
>
> In packages/hal/cortexm/stm32/stm32f4discovery/current/include/plf_io.h
> please add such lines:
>
>
> //=============================================================================
>
> // Custom Ethernet pin mappings
>
>
> #define CYGHWR_HAL_STM32_ETH_MII_TX_EN CYGHWR_HAL_STM32_PIN_ALTFN_OUT( B,
> 11, 11, PUSHPULL, NONE, AT_LEAST(50) )
>
> #define CYGHWR_HAL_STM32_ETH_MII_TXD0 CYGHWR_HAL_STM32_PIN_ALTFN_OUT( B, 12,
> 11, PUSHPULL, NONE, AT_LEAST(50) )
>
> #define CYGHWR_HAL_STM32_ETH_MII_TXD1 CYGHWR_HAL_STM32_PIN_ALTFN_OUT( B, 13,
> 11, PUSHPULL, NONE, AT_LEAST(50) )
>
>
> In packages/devs/eth/phy/current/cdl/phy_eth_drivers.cdl add missing PHY
> chip:
>
>
> cdl_option CYGHWR_DEVS_ETH_PHY_LAN8720A {
>
> display "SMSC LAN8720A"
>
> flavor bool
>
> default_value 0
>
> compile -library=libextras.a LAN8720A.c
>
> description "
>
> Include support for SMSC LAN8720A"
>
> }
>
>
> and finally add new PHY i.e LAN8720A.c into directory ->
> packages/devs/eth/phy/current/src
>
>
> if you will have additional problems please ask I have already brought up
> network interface on
>
> STM32F4DISCOVERY + DM-STF4BB (AFAIK this is original name of base board from
> Embest, now
>
> as I see it's called STM32F4DIS-BB).
>
>
>
> Best regards,
>
> jerzy
>
>
>
> 2014-03-25 11:04 GMT+01:00 John Dallaway <john@dallaway.org.uk>:
>
>> Hi Valentin
>>
>> On 25/03/14 08:26, Valentin BOUSSON wrote:
>>
>> > Today, I have a problem to set up *LwIP* on my *STM32F4DISCOVERY* with
>> > the standard extension board.
>> > (http://www.st.com/web/catalog/tools/FM146/CL1984/SC720/SS1462/PF255417)
>> >
>> > I tried a lot of thing, as using the default configuration for eCos,
>> > adding packages "Ethernet common drivers" and "LwIP stack". No confilct
>> > appears, but an the stack doesn't seem to work at all.
>>
>> At minimum, you will need to add the CYGPKG_DEVS_ETH_PHY and
>> CYGPKG_DEVS_ETH_CORTEXM_STM32 hardware packages to the
>> "stm32f4discovery" target description record in packages/ecos.db.
>> Actually, it would be preferable to create a new target description
>> record for STM32F4-Discovery with STM32F4DIS-EXT.
>>
>> You might also be necessary to modify the the hal_system_init() function
>> in the STM32F4-Discovery platform HAL to setup the ethernet hardware.
>> Compare with the hal_system_init() function from the STM32x0G platform
>> HAL.
>>
>> With these changes in place, you should be able to create a new eCos
>> configuration for lwIP based on the eCos "lwip_eth" packages template.
>>
>> I hope this helps...
>>
>> John Dallaway
>> eCos maintainer
>> http://www.dallaway.org.uk/john
>>
>> --
>> Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
>> and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
>>
>

//==========================================================================
//
//      dev/LAN8270A.c
//
//      Ethernet transciever (PHY) support 
//
//==========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 2003 Gary Thomas
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    jerzdy
// Contributors:
// Date:         2013-11-18
// Purpose:
// Description:  Support for ethernet SMSC LAN8720A
//
//
//####DESCRIPTIONEND####
//
//==========================================================================

#include <pkgconf/system.h>
#include <cyg/infra/cyg_type.h>
#include <cyg/infra/diag.h>

#include <cyg/hal/hal_arch.h>
#include <cyg/hal/drv_api.h>
#include <cyg/hal/hal_if.h>
#include <cyg/hal/hal_tables.h>

#include <cyg/io/eth_phy.h>
#include <cyg/io/eth_phy_dev.h>

static bool lan8720a_stat(eth_phy_access_t *f, int *state)
{
    unsigned short phy_state=0;
    int tries=0;

    // Read negotiated state
    if (_eth_phy_read(f, 0x1, f->phy_addr, &phy_state)) {
        if ((phy_state & PHY_BMSR_AUTO_NEG) == 0) {
            eth_phy_printf("... waiting for auto-negotiation (30 x 0,2sec):");
            for (tries = 0;  tries < 30;  tries++) {
                if (_eth_phy_read(f, 0x1, f->phy_addr, &phy_state)) {
                    if ((phy_state & PHY_BMSR_AUTO_NEG) != 0) {
                        break;
                    }
                }
                CYGACC_CALL_IF_DELAY_US(200000);   // 0.2 second
                diag_printf(".");
            }
            eth_phy_printf("\n");
        }

        if ((phy_state & PHY_BMSR_AUTO_NEG) != 0) {
            *state = 0;
            if (_eth_phy_read(f, 0x1, f->phy_addr, &phy_state)) {
                if ((phy_state & PHY_BMSR_LINK) != 0) *state |= ETH_PHY_STAT_LINK;
            }
            if (_eth_phy_read(f, 0x5, f->phy_addr, &phy_state)) {
                // Partner negotiated parameters
                if ((phy_state & 0x0100) != 0) *state |= ETH_PHY_STAT_100MB | ETH_PHY_STAT_FDX;
                if ((phy_state & 0x0080) != 0) *state |= ETH_PHY_STAT_100MB;
#ifdef ETH_PHY_STAT_10MB
                if ((phy_state & 0x0040) != 0) *state |= ETH_PHY_STAT_10MB | ETH_PHY_STAT_FDX;
                if ((phy_state & 0x0020) != 0) *state |= ETH_PHY_STAT_10MB;
#endif
                // _eth_phy_read(f, 17, f->phy_addr, &phy_state);
                // CYGACC_CALL_IF_DELAY_US(1000000);   // 0.1 second
                return true;
            }
        }
    }
    return false;
}


_eth_phy_dev("SMCS LAN8720A", 0x0007C0F1, lan8720a_stat)

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