swd problem ith IAR EW5.0 kikstart

Posted on May 17, 2011 at 12:34

Hi,

I'm new to STM32, but I worked before with ARM7

I want to use JLink as SWD, however it doesn't work with IAR EW5.0 kickstart (see error messages below)

It does work as JTAG.

How to fix it?

Jan

Sat May 10 14:55:10 2008: DLL version: V3.80c, compiled Apr 9 2008 18:56:00

Sat May 10 14:55:10 2008: Firmware: J-Link compiled Feb 20 2006 18:20:20 -- Update --

Sat May 10 14:55:10 2008: Fatal error: SWD is not supported by connected emulator.

Session aborted!

Sat May 10 14:55:14 2008: Failed to load flash loader: C:\Program Files\IAR Systems\Embedded Workbench 5.0 Kickstart\ARM\config\flashloader\ST\FlashSTM32F10x.out

Posted on May 17, 2011 at 12:34

Quote:

On 11-05-2008 at 11:58, Anonymous wrote:

Janek,

What J-Link probe have you got ?

Are you sure that you have a new J-Link probe with the word ''SWD'' written on it ?

http://www.iar.com/website1/1.0.1.0/369/1/index.php?

If the probe is older, it will not support SWD, but it looks the same.

Not sure if just a firmware upgrade is possible to solve this

I'm using IAR EWARM 5.11 and their probe and it works OK.

Hi Arm_Wrestler,

My J-Link is a 2006 version.

Are you sure that a $300 piece is useless after only 2 years?

The hardware part of it is worth about $10.

I already contacted Segger hoping to get answers.

Jan

Posted on May 17, 2011 at 12:34

Hi Arm_Wrestler, (not one of my skills...)

Would you be so good as to run JLink Commander

and share with the forum what software version

you have? I have ver V380C - which I downloaded

from Segger site a month ago. We immediately noted

substantially FASTER code downloads via Jtag! This

SAVES hours during our code development... (when

compared to earlier versions)

If I ''missed'' forum entries - forgive me - it would

be useful if you would share the performance and usage

trade-offs between JTAG and SWD. (most know the signal

savings with SWD) I also have EWARM 5.11 & JLink.

Posted on May 17, 2011 at 12:34

Janek,

What J-Link probe have you got ?

Are you sure that you have a new J-Link probe with the word ''SWD'' written on it ?

http://www.iar.com/website1/1.0.1.0/369/1/index.php?

If the probe is older, it will not support SWD, but it looks the same.

Not sure if just a firmware upgrade is possible to solve this

I'm using IAR EWARM 5.11 and their probe and it works OK.

Posted on May 17, 2011 at 12:34

Jan,

I have 2 Jlinks, 1 is new and one is 2 years old.

The older one does not support SWD.

I'll post all my h/w s/w f/w versions tomorrow, all my dev kit is in the lab but I hope to be working from home soon for some s/w dev & some peace & quiet.

Posted on May 17, 2011 at 12:34

jj,

It will have to wait till tomorrow when I'm back in the dungeon-lab.

Its sunny and 25'C here and I'm going out for a Sunday Lunch Barbie !

Are you saying you got faster SWD performance with the new firmware, or multi-pin JTAG is much faster than 2 pin SWD ?

I was forced to go the SWD route as I used up so many pins on my STM32 chip. If the performance is much slower than JTAG I'll have to live with it I'm afraid.

Thanks for the tips.

Julian

Posted on May 17, 2011 at 12:34

My old j-link

Firmware: J-Link compiled Feb 20 2006 18:20:20 -- Update --

Hardware V4.30

New j-link that supports SWD

Firmware: J-Link compiled Apr 9 2008 18:04:42

Hardware V6.00

Unfortunately j-link commander automatically updated my new j-link to the latest firmware version before I could read the old version.

I presume it will run faster

Posted on May 17, 2011 at 12:34

Quote:

On 11-05-2008 at 16:16, Anonymous wrote:

Hi,

Jlink version 6.xx supports SWD and near the JTAG connector there is a label JTAG v SWD as shown here :

Please refer to :

http://www.iar.com/website1/1.0.1.0/369/1/index.php?

Cheers,

STOne-32

Hi,

Thanks everyone for the clarification.

Another question is:

What software / hardware tools support SWD? So far I know IAR and a new J-Link does.

As I will need another JTAG/SWD debugger hardware, which ones support SWD?

Jan

Posted on May 17, 2011 at 12:34

Hi,

Jlink version 6.xx supports SWD and near the JTAG connector there is a label JTAG v SWD as shown here :

Please refer to :

http://www.iar.com/website1/1.0.1.0/369/1/index.php?

Cheers,

STOne-32

Posted on May 17, 2011 at 12:34

hi/thank you Arm_Wrestler,

Trust you've recovered from 25C/Sunny and are

nicely ensconced en L'dungeon...

Whoops - I failed to alert you to the automatic

update feature of ''JLink Commander.''

We noted substantially faster code downloads under

IAR after updating. Minimum 3-5 seconds SAVINGS per EACH

32KB download (may even be greater under some circumstances)

Sorry but we designed a cpld to prevent ''Jtag encroachment.''

Provides/unburdens STM32 from ''nuisance'' functions and

enhances our hook-up to Color & Mono Graphic Lcds. We have

used SWD - that engineer is is Asia right now.

Thanks again your fast/complete update. The Jtag method seems

robust, simple and the time-savings is most welcome...

[ This message was edited by: jj.sprague on 12-05-2008 14:39 ]