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apogostin
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Joined: 2015-02-17 01:37
J-LINK SWDIO

Hello Dialog Forum. Have a question. Does the DA14580 SWDIO pin require a pull-up resistor when attached to the J-link SWDIO line? The J-Link documentation states that one is required and that ARM recommends a 100K pull-up. Please see the "J-Link / J-Trace (UM08001)" documentation at segger.com (page 347, table 12.3). I've got it working without this pull-up, but want to make sure I won't run into stability issues without this pull-up.

Thanks much,

Alex

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MT_dialog
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Last seen: 2 weeks 3 days ago
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Joined: 2015-06-08 11:34
Hi apogostin,

Hi apogostin,

I cant find any pull-up resistor in the schematics of our board on the SWDIO pin, since the board doesn't have one you should be ok.

Thanks MT_dialog