ST-Link Connection error

[zhdanovsergey]

Posted on March 11, 2012 at 09:40

STM32 Value line discovery, IAR EW for ARM (6.30.6.3387), Windows XP, simple program. I have 2 computers: at home and at work. Run program at home - OK! Run this program at work - ''Make'' - OK!, ''Download and Debug'' - Fatal error: ST-Link Connection error. (TN0830 I have read). Thanks for your help.

[zhdanovsergey]

Posted on March 11, 2012 at 11:43

[Tesla DeLorean]

Posted on March 11, 2012 at 13:03

Would you happen to have admin rights at home and not at work? Or other settings that might preclude normal operation, UAC, USB memory sticks disabled?

Check also SWD mode is always selected, if user code on the board crashes the ST-LINK try setting the BOOT pin high so it runs the system loader instead, and recover it that way.

[zhdanovsergey]

Posted on March 11, 2012 at 14:14

Thank you. May be reason different Windows XP at home and at work. SWO clock I instal 32 KHz (recommend on other forum) but doesnt help.

[bjoern2]

Posted on March 12, 2012 at 10:20

Hi Sergey,

had some problems using the st-link as well. I downloaded the st_link utitlity from: http://www.st.com/internet/evalboard/product/219866.jsp and then made shure to update the st link driver. After that the st link was also ok for my stm32f4 discovery, is maybe not the right way but helped me. Greetings Bjoern

[zhdanovsergey]

Posted on March 13, 2012 at 19:32

Thanks for you attenthion. Sorry for my English. I downloaded the st_link utitlity, but dont help,  ST-Link on board in my STM32VLDiscovery. Reinstal IAR, desable antivirys program, go via the link ''Microsoft knowledgebase KB973544 article'' in the right column to download and run the file vcredist_x86.exe (for a 32-bit OS), but dont help.

[zhdanovsergey]

Posted on March 14, 2012 at 19:59

Consider the problem solved. I  deinstalled  programm ''Daemon Tools (virtual disk) and may program work -  LED is blinking. Thanks forum ST.