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STM32L152RBT6 board problem with SWD

Question asked by chudova.michaela on Feb 21, 2014
Latest reply on Mar 14, 2014 by chudova.michaela
I am working on my own board designed around STM32L152RBT6 and I'm facing some problems with connecting to device. I use STM32L Discovery Kit SWD to flash it, jumpers on CN3 are off, all 5 pins for swd connected. My board was checked couple times and is 100% without any trace issues. I would be pleased if some of you could check my schematic, if the PCB is desgined okey, or it's some design issue. Sometimes I'm lucky and can get a connection, most of the time I can't.