STM8L-Discovery Debugging

stm8 · ‎2011-01-20

Posted on January 21, 2011 at 08:27

Hello,

I use the ST Visual Develop IDE together with the Cosmic Compiler and the STM8L-Discovery.

Everything seems to work fine, besides the debug function.

When I try to start debugging I get the following error message:

''Connection error (usb://usb): swim error [30200]: st-link connection error''

I found discussions of Linux users about this topic, but I use Windows...

Any idea how I get this to work?

Thanks in advance.

napoleoni.jacques · ‎2011-01-21

Posted on January 21, 2011 at 09:06

Hello,

Please check if below topic can help you solving your issue or comeback to the forum.

[DEAD LINK /public/STe2ecommunities/mcu/Lists/STM8LDiscovery/Flat.aspx?RootFolder=/public/STe2ecommunities/mcu/Lists/STM8LDiscovery/Problems debugging with STVD&FolderCTID=0x01200200770978C69A1141439FE559EB459D758000B276AC6C9F9B7A43ACF58B3CEB87C40C&TopicsView=https://my.st.com/public/STe2ecommunities/mcu/Lists/STM8LDiscovery/AllItems.aspx&currentviews=188]https://my.st.com/public/STe2ecommunities/mcu/Lists/STM8LDiscovery/Flat.aspx?RootFolder=%2fpublic%2fSTe2ecommunities%2fmcu%2fLists%2fSTM8LDiscovery%2fProblems%20debugging%20with%20STVD&FolderCTID=0x01200200770978C69A1141439FE559EB459D758000B276AC6C9F9B7A43ACF58B3CEB87C40C&TopicsView=https%3A%2F%2Fmy%2Est%2Ecom%2Fpublic%2FSTe2ecommunities%2Fmcu%2FLists%2FSTM8LDiscovery%2FAllItems%2Easpx&currentviews=188

Thanks.

stm8 · ‎2011-01-21

Posted on January 21, 2011 at 09:30

Hello,

I selected the project and debug settings according to the quickstart manual.

I don't use a usb-hub, the device is listed in the device manager as a storage.

I didn't try it with another pc, but tried another stm8l-discovery, that doesn't work either...

Any other posibilities to try?

Thanks

napoleoni.jacques · ‎2011-01-21

Posted on January 21, 2011 at 10:50

Hello,

It seems that your problem is related to the ST-link driver which is perhaps not properly installed.

You have to check in your Control Panel/System/Device Manager if ST-link is detected once the device is plugged in your USB port (a sound is emitted at device plug-in). If so, try to remove it by pressing DEL key and confirm, then disconnect and re-plug the STM8L-Discovery, this forces the driver to be re-installed. Check if this operation has solved the issue.

Other thing is to try connecting your device on another USB port and wait for the system to detect again the device.

Have you another USB cable to try (minimum cable length is recommended)?

Other way to check the communication is to use ST Visual Programmer toolset (delivered with ST toolset package) and available by windows menu Start/All Programs/ST Toolset/Development Tools/ST Visual Programmer. Once application opened, select Hardware as ST-LINK, Programming Mode as SWIM and Device as STM8L152C6. Try now to read the device with the Read icon (green) or by the Read menu then Current Tab. If programmer is able to read the device, try to erase it by first filling FFh data in the whole memory range, right click on the memory buffer, Fill area..., enter FF value then confirm. Now press Program icon (Red); This will program the device memory with FFh data.

In this case, under stvd when using the debug mode, the system will be forced to load and write the program again into the device. This is a way to re-initialize the communication properly.

Please check these points and let us know.

Thanks.

stm8 · ‎2011-01-23

Posted on January 24, 2011 at 08:35

It's annoying...

After unsuccessfully trying all your suggestions I decided to use a different PC.

Now I'm able to read and write with the ST Visual Programmer.

Unfortunately it still isn't possible to debug with the ST Visual Develop.

But now I get a different error message:

Connection error (usb://usb): swim error [30004]: comm timeout

Note: I still don't use a usb hub and allready tried usb cables of different length.

napoleoni.jacques · ‎2011-01-24

Posted on January 24, 2011 at 09:54

Are you sure to have the right settings in your STVD, menu Debug instrument/Target Settings/ target to choose is Swim ST-Link and target Port Selection is usb://usb?

Or did you try with another STM8L-Discovery? 😉

In any case, have you ever seen this board working? If no, I advise to get closer of your hardware distributor and to try getting a board exchange and see...

Regards.

vizlipuzli · ‎2011-07-26

Posted on July 26, 2011 at 13:43

I had the similar problem, particulary ''SWIM error [30200]: ST-Link connection error'' while trying to start debugging in IAR. I found that the problem was in virtual DVD-RW drive created with Alcohol 120%. Its letter stood prior to ST-Link and debugger stumble on it while examining drives. Deleting virtual disk solved the problem.

ogm101274 · ‎2011-08-01

Posted on August 01, 2011 at 12:23

Hi, I've detected that with the original version of the st toolset the ST-Link swin works fine, but once I upgrade the toolset to the patch 1 or patch 2, the same error appear.

If I uninstall all and reinstal the toolset without patch, it works again.

Any idea of how to make it work with the patchs?.

Regars

Oscar

filip · ‎2011-08-24

Posted on August 24, 2011 at 14:06

Same problem after upgrading from STVD 4.2.0 to 4.2.1 , also did upgraded with patches 1 & 2 but problem stayed.. after removing 4.2.1(reboot etc et) and installing the older 4.2.0 back I was back in business... anyone who can pinpoint the problem with cure

askatseng · ‎2011-12-15

Posted on December 16, 2011 at 07:49

i had the same situation today. and fix it by follow steps.

1.Execute ST Visual Programmer and execute read cmd. to check the connection.

2.Be administrator to execute the STVD program and download again.

best regards

Aska