st-vlink v2 no target connected

[vivelavida911]

Posted on January 07, 2015 at 09:40

hi, im trying to connect a STM32F107VCT6 to flash it, but the st-linkv2 doesnt detect it.

I have conected pins:4--GROUND6--GROUND7--SWDIO---------------------------PIN 72  MICROCONTROLER8--GROUND9--SECLK---------------------------PIN 76  MICROCONTROLER10--GROUND12-- GROUND.14--GROUND16--GROUND18 --GROUND20--GROUNDbut still doesnt conect.PLEASE HELP!!!Its says that has no power supply detected and either doesnt detect the stm32 too. #stm32f107vct6-no-detection

[Tesla DeLorean]

Posted on January 08, 2015 at 00:21

the micro is autosupplied, so dont need 3.3 volts pin 1.

Whatever that means. The target voltage is put there by YOUR board to power the level converter buffers on the ST-LINK.

[vivelavida911]

Posted on January 08, 2015 at 21:56ok, but... the maker of the pbc only have conected the pins 7, 9 and 12.so ... may be damaged any component?... i have all the volts correct.

[Tesla DeLorean]

Posted on January 08, 2015 at 22:51

ok, but... the maker of the pcb only have connected the pins 7, 9 and 12.

so ... may be damaged any component?... i have all the volts correct.

And do either of these board designs work? Doesn't really sound like a component issue.