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stm32f1xx [2020/02/12 01:18] – [blue pill] add black pill kingkevin | stm32f1xx [2020/02/12 08:58] – [blue pill] add pictures kingkevin | ||
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Mine for example has a 10 kΩ pull-up (to 3.3 V) resistor on USB D+/PA12 instead if a 4.7kΩ (to 5 V), although USB devices use a 1.5 kΩ resistor to pull up (to 3.3 V) usually. | Mine for example has a 10 kΩ pull-up (to 3.3 V) resistor on USB D+/PA12 instead if a 4.7kΩ (to 5 V), although USB devices use a 1.5 kΩ resistor to pull up (to 3.3 V) usually. | ||
- | ===== blue pill ===== | + | ===== black pill ===== |
+ | |||
+ | {{ : | ||
+ | {{ : | ||
the [[https:// | the [[https:// | ||
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changes: | changes: | ||
* LED is on PB12 (sink to enable it) | * LED is on PB12 (sink to enable it) | ||
+ | * different pinout | ||
drawbacks: | drawbacks: | ||
* larger | * larger | ||
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* no VBAT pin | * no VBAT pin | ||
* one less GND pin | * one less GND pin | ||
- | * no C15 and C14 pin | + | * no C15 and C14 pin (used for OSC32) |
- | * different pinout | + | |
===== core board ===== | ===== core board ===== | ||