AnsweredAssumed Answered

f4 discovery, SWD / ST-Link

Question asked by belchamber.ian on Jul 15, 2013
Latest reply on Sep 10, 2014 by roofie01
Hi, the f4 discovery works great with on-board st-link, but for my target I would like to use the 6 pin SWD interface, not the 20 pin interface, and external st-link. By reference to information I have found so far I have made a 20 to 6 pin adapter like this:

20 pin  6 pin
3          5 (TRST)
6          3 (GND)
7          4 (SWDIO)
9          2 (SWCLK)
13        6 (SWO)

So I removed the 2 links on CN3 and plugged the external st-link to the f4 discovery through this adapter but it does not work (cpu not found). Can anyone tell me where I went wrong or where I can find full information on this?

Thanks.





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