Re: [lwip-users] how lwip know internet cable is unplug

[ake . forslund]

Yes (The interrupt output-pin that is muxed
with the Power-down-signal on the DP83848c)

/Åke

-----------------------------
Åke Forslund
0433-273296
NIBE AB
Box 14
S-285 21  Markaryd
Tel +46-(0)433-273296

From:	vincent cui <address@hidden>
To:	Mailing list for lwIP users <address@hidden>
Date:	2011-09-07 09:35
Subject:	Re: [lwip-users] how lwip know internet cable is unplug
Sent by:	address@hidden

---

The normal IRQ is Ethernet_IRQ ?  
 
Vincent Cui
Sr.Firmware Engineer
Mobile: +8613482482211
Tel: +86 21 34612525x6104
Fax: +86 21 34619770
E-Mail: address@hidden
Shanghai EnLogic Electric Technology Co., Ltd.
Address: 1104-1106, Building A, No.391, Guiping Road, Xuhui District,
Shanghai, 200233
http://www.enlogic.com
 
From: address@hidden
[mailto:address@hidden]
On Behalf Of address@hidden
Sent: 2011年9月7日
15:30
To: Mailing list for lwIP users
Subject: Re: [lwip-users] how lwip know internet cable is unplug
 
The DP83848c seem to have IRQ on link status
change (data sheet page 53). Why can't you use the normal IRQ?

/Åke 

-----------------------------
Åke Forslund
0433-273296
NIBE AB
Box 14
S-285 21  Markaryd
Tel +46-(0)433-273296

From:	vincent cui <address@hidden>
To:	Mailing list for lwIP users <address@hidden>
Date:	2011-09-07 09:09
Subject:	Re: [lwip-users] how lwip know internet cable is unplug
Sent by:	address@hidden

---

I use STM32F107 board, Cortex M3… 
 DP83848c,,,, 
  
Vincent Cui
Sr.Firmware Engineer
Mobile: +8613482482211
Tel: +86 21 34612525x6104
Fax: +86 21 34619770
E-Mail: address@hidden
Shanghai EnLogic Electric Technology Co., Ltd.
Address: 1104-1106, Building A, No.391, Guiping Road, Xuhui District,
Shanghai, 200233
http://www.enlogic.com
  
From: address@hidden [mailto:address@hidden]
On Behalf Of address@hidden
Sent: 2011年9月7日
14:52
To: Mailing list for lwIP users
Subject: Re: [lwip-users] how lwip know internet cable is unplug
  
I agree that polling isn't the best way of dealing with it. If your ethernet-controller
really doesn't support interrupt on link-status change the hardware hack
you propose might be the only way to go. What controller is it you're working
with? 

/Åke 

-----------------------------
Åke Forslund
0433-273296
NIBE AB
Box 14
S-285 21  Markaryd
Tel +46-(0)433-273296

From:	vincent cui <address@hidden>
To:	Mailing list for lwIP users <address@hidden>
Date:	2011-09-07 08:46
Subject:	Re: [lwip-users] how lwip know internet cable is unplug
Sent by:	address@hidden

 

 

---

Alk 
 
Thank you for your reply …. Now, I know your method to deal with ….but
it is not a good idea with polling … 
I ask my HW guys support LED_LINK pin with interrupt. So I can receive
the event at real time 
 
Vincent Cui
Sr.Firmware Engineer
Mobile: +8613482482211
Tel: +86 21 34612525x6104
Fax: +86 21 34619770
E-Mail: address@hidden
Shanghai EnLogic Electric Technology Co., Ltd.
Address: 1104-1106, Building A, No.391, Guiping Road, Xuhui District,
Shanghai, 200233
http://www.enlogic.com
 
From: address@hidden [mailto:address@hidden]
On Behalf Of address@hidden
Sent: 2011年9月7日
14:26
To: Mailing list for lwIP users
Subject: Re: [lwip-users] how lwip know internet cable is unplug
 
Hi Vincent, 

my application is not time critical and due to an error on the PCB the
interrupt line from my ethernet controller is not connected.

Right now my sollution works like this: 

my driver is initied via *_init() and creates the task that periodically
polls my ethernet controller for new frames and events. When cable plug/unplug
occurs a function is called (this function is registred as a callback to
keep the project structure sane). This function then safely executes netif_set_link_up/down().

The task polling the ethernet controller is run every ~44 ms. I'm not sure
what sort of response time you are hoping to achieve but for my purposes
it seem to work fine. 

/Åke 

-----------------------------
Åke Forslund
0433-273296
NIBE AB
Box 14
S-285 21  Markaryd
Tel +46-(0)433-273296

From:	vincent cui <address@hidden>
To:	Mailing list for lwIP users <address@hidden>
Date:	2011-09-07 01:15
Subject:	Re: [lwip-users] how lwip know internet cable is unplug
Sent by:	address@hidden

 

 

---

>>>> My approach is to send
a signal to a separate task to handle the cable-plug/unplug events

Ake: 

For your approach, who send a signal to the task ? the driver ?  my
driver can get the link status by polling, not interrupt, so it takes more
cpu time..I stop using it 
And try to find another one to replace… maybe it need HW sensor support.
Vincent Cui
Sr.Firmware Engineer
Mobile: +8613482482211
Tel: +86 21 34612525x6104
Fax: +86 21 34619770
E-Mail: address@hidden
Shanghai EnLogic Electric Technology Co., Ltd.
Address: 1104-1106, Building A, No.391, Guiping Road, Xuhui District,
Shanghai, 200233
http://www.enlogic.com

From: address@hidden [mailto:address@hidden]
On Behalf Of address@hidden
Sent: 2011年9月2日
14:50
To: Mailing list for lwIP users
Subject: Re: [lwip-users] how lwip know internet cable is unplug

Hi! 

I think that is something you define in your ethernet driver. My approach
is to send a signal to a separate task to handle the cable-plug/unplug
events. In the task I currently disable dhcp (if active) on cable-unplug
signal and reenable it on cable-connect. it might be good to set an auto-ip
when unplugged as well, but I'm not sure. Maybe it should be handled with
the netif_set_up/down-functions instead, I'm still experimenting...

/Åke 

-----------------------------
Åke Forslund
0433-273296
NIBE AB
Box 14
S-285 21  Markaryd
Tel +46-(0)433-273296

From:	vincent cui <address@hidden>
To:	Mailing list for lwIP users <address@hidden>
Date:	2011-09-02 07:27
Subject:	[lwip-users] how lwip know internet cable is unplug
Sent by:	address@hidden

 

 

---

Hi;

When unplug internet cable, how lwip deal it ? I want to show message to
user in LCD to notice user !

锘?Vincent Cui
Sr.Firmware Engineer
Mobile: +8613482482211
Tel: +86 21 34612525x6104
Fax: +86 21 34619770
E-Mail: address@hidden
Shanghai EnLogic Electric Technology Co., Ltd.
Address: 1104-1106, Building A, No.391, Guiping Road, Xuhui District, Shanghai,
200233
http://www.enlogic.com

-----Original Message-----
From: address@hidden [mailto:address@hidden]
On Behalf Of Kieran Mansley
Sent: 2011年9月2日 3:22
To: Mailing list for lwIP users
Subject: Re: [lwip-users] FreeRTOS / lwip multiple connections


On 31 Aug 2011, at 01:18, vincent cui wrote:

> K:
> You mean I need make accept socket to be non-blocking , right ?

No, I'm not sure why you need any of your sockets to be non-blocking.

Kieran

_______________________________________________
lwip-users mailing list
address@hidden
https://lists.nongnu.org/mailman/listinfo/lwip-users
_______________________________________________
lwip-users mailing list
address@hidden
https://lists.nongnu.org/mailman/listinfo/lwip-users
_______________________________________________
lwip-users mailing list
address@hidden
https://lists.nongnu.org/mailman/listinfo/lwip-users
_______________________________________________
lwip-users mailing list
address@hidden
https://lists.nongnu.org/mailman/listinfo/lwip-users
_______________________________________________
lwip-users mailing list
address@hidden
https://lists.nongnu.org/mailman/listinfo/lwip-users
_______________________________________________
lwip-users mailing list
address@hidden
https://lists.nongnu.org/mailman/listinfo/lwip-users