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use SWD connection on discoveryL board and J-link

Question asked by guif on Jan 11, 2013
Latest reply on Jan 14, 2013 by guif
For the moment I'am using the STM32l discovery card (stm32l152R8 chip). I write a programm to toggle led and i donwload it with st-link V2 which is integratted on the board.It's working. Now I would like to connect with J-Link(Segger) with SWD connection on discovery board. Is it possible?. On the electrical scheme there are zener diode, but on the discovery board there is any zener diode.   Is it normal?
For the moment, the JFlash-arm software recognizes the J-link. But when I want to read memory , there is an error.

If you want more explanation, say me.

Thanks you,