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stm32duino:32stm32_main [2018/11/03 18:01] admin [USB Fix] |
stm32duino:32stm32_main [2018/11/03 18:50] admin [USB Fix] |
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==== USB Fix ==== | ==== USB Fix ==== | ||
- | Unfortunately the board comes with a 10k pullup resistor from D+ to 3.3V (in the schematic it's a 4.7k resistor to ground). That can cause problems on some PCs. Just take the R10 out and with an 1.5k resistor like shown here:\\ | + | Unfortunately the board comes with a 10k pullup resistor from D+ to 3.3V (in the schematic it's a 4.7k). That can cause problems on some PCs. Just take the R10 out and replace it with an 1.5k resistor like shown here:\\ |
[[http:// | [[http:// | ||
+ | One might let the 10k resister untouched and just put a 1.8k in parallel. Between 3.3V and pin A1.\\ | ||
< | < | ||
<a href=" | <a href=" | ||
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</a> | </a> | ||
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+ | And here are some useful infos about the pullup resistors on USB:\\ | ||
+ | [[https:// | ||
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==== Schematic ==== | ==== Schematic ==== | ||
- | Here one find the [[http:// | + | Here one find the [[http:// |
+ | Pinout:\\ | ||
+ | < | ||
+ | <a href="http://wiki.stm32duino.com/images/a/ | ||
+ | <img src=" | ||
+ | </ | ||
+ | </ | ||
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==== Links ==== | ==== Links ==== | ||
- | < | + | |
- | <a href=" | + | |
- | <img src=" | + | |
- | </ | + | |
- | </ | + | |
[[https:// | [[https:// | ||
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