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Unable to program an stm32f030 via st link

Question asked by ehsan.awais on Feb 19, 2015
Latest reply on Feb 19, 2015 by Clive One
hello everybody, 

i am an electrical engineer working with stm32 devices these days. 

i am having problems at programming stm32f030 via st link utility, i use IAR as an IDE, i have tried hardware troubleshooting, firmware update, downgrade but all in vain. 

sometimes it connects and then disconnects at the very same instant, i have verified that the power lines, vcc/gnd signals are ok and intact, i have even tried to view the fluctuations if any via oscilloscope but nothing bore fruit. 

for programming i m using an stm32discovery board, using its st link tool while using VDD,SWCLK,GND and SWDIO signals. 

please help me track down the problem. 

appreciate all the help.