Differences

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--- arduino:stm32_blue_pill [2019/11/05 21:34] – [Arduino environment] mithat
+++ arduino:stm32_blue_pill [2019/11/05 21:55] – mithat
@@ Line 4: / Line 4: @@
 ===== Setup =====
-==== Arduino environment ====
-Do once:
-  * Under //Files > Preferences//, add to the "Additional Boards Manager URLs:" field: ''http://dan.drown.org/stm32duino/package_STM32duino_index.json''((It [[https://github.com/stm32duino/Arduino_Core_STM32#getting-started|looks like]] the URL for the boards has changed to ''https://github.com/stm32duino/BoardManagerFiles/raw/master/STM32/package_stm_index.json''. However, this list is incompatible with the list at ''http://dan.drown.org/stm32duino/package_STM32duino_index.json''.))
-  * Under //Tools > Board > Boards Manager ...//, find "**STM32F1xxx/GD32F1xxx boards** by stm32duino" and install it.
 ==== Hardware ====
-In addition to your "Blue Pill," you will also need a **3.3V USB to serial converter**. I used a [[https://www.sparkfun.com/products/14050|SparkFun Serial Basic]] configured for 3.3V. Only the power, TX and RX pins will be used, so you should be able to use a standard FTDI board as well.
+In addition to a "Blue Pill," you will need a **3.3V USB to serial converter**. I used a [[https://www.sparkfun.com/products/14050|SparkFun Serial Basic]] configured for 3.3V. Only the TX and RX pins and, optionally, power will be used, so you should be able to use a standard FTDI board as well.
 <WRAP center important 90%>
-Some serial converter boards put out 5V as VCC even when set to 3.3V mode. Be careful!
+Be careful! Some serial converter boards put out 5V as VCC even when set to 3.3V mode. Applying 5V to the 3.3V main supply line of a Blue Pill will kill it.
-Applying 5V to the 3.3V main supply line of Blue Pill will kill it.
+Lots of pins on the STM32F103C8T6 are purported to be 5V tolerant, but the main DC isn't. I don't know if TX/RX are.
 There is a 5V input on the Blue Pill and a USB connector that can power the board from 5V. These go through a small 3.3V regulator.
-Lots of pins on the STM32F103C8T6 are purported to be 5V tolerant, but the main DC isn't! I don't know if TX/RX are.
 </WRAP>
-  * Connect VCC and ground from the serial converter board to the ''3.3'' and ''GND'' pins of the Blue Pill (or ''5V'' and ''GND'' if your serial converter board puts out 5V even in 3.3V mode).
+  * Connect ground from the serial converter board to the ''GND'' pins of the Blue Pill.
-  * Connect the serial converter's RX to the Blue Pill's ''A9'' and TX to ''A10''.
+  * Connect the serial converter's RX to the Blue Pill's ''A9''.
+  * Connect the serial converter's TX to the Blue Pill's ''A10''.
+  * If you will be powering the Blue Pill from the serial converter board, connect VCC from the serial converter board to the ''3.3'' pin of the Blue Pill (or ''5V'' if your serial converter board puts out 5V even in 3.3V mode).
+==== Arduino environment ====
+Do once:
+  * Under //Files > Preferences//, add to the "Additional Boards Manager URLs:" field((It [[https://github.com/stm32duino/Arduino_Core_STM32#getting-started|looks like]] the URL for the boards has changed to\\ ''https://github.com/stm32duino/BoardManagerFiles/raw/master/STM32/package_stm_index.json''. However, this list is incompatible with the list at\\ ''http://dan.drown.org/stm32duino/package_STM32duino_index.json''.)):\\ ''http://dan.drown.org/stm32duino/package_STM32duino_index.json''
+  * Under //Tools > Board > Boards Manager ...//, find "**STM32F1xxx/GD32F1xxx boards** by stm32duino" and install it.
 ==== Project config ====