Differences

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--- stm32f1xx [2016/12/16 10:11] – [core board] kingkevin
+++ stm32f1xx [2017/04/02 21:35] – [maple mini] typo kingkevin
@@ Line 79: / Line 79: @@
   * no additional connections (SWD, power, GND)
   * the pin silkscreen are not the chip pins (you always need the schematic at hand)
-  * the clones don't provide a second voltage regulator for the analague part
+  * the clones don't provide a second voltage regulator for the analogue part
 ===== blue pill =====
@@ Line 102: / Line 102: @@
     * boot select
     * power LED
-    * user LED, on PC13
+    * user LED, on PC13 (warning: switching this LED heavily affects the RTC)
     * reset button (NRST)
     * 32.768 kHz real time clock (RTC)
@@ Line 118: / Line 118: @@
 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.
-===== code board =====
+===== core board =====
 {{ :stm32f1xx:core-board_back.jpg?0x400|core board}}{{ :stm32f1xx:core-board_front.jpg?0x400|core board}}
@@ Line 168: / Line 168: @@
 drawbacks:
   * very few power pins
+**warning**: on the board silkscreen SWDIO and SWCLK are swapped
 ====== flashing ======