Konstantin Kochin / Mbed OS STM32F103C8T6_USBSerial_Demo

Demo of the usage USBDevice library with Blue Pill STM32F103C8T6 board.

Dependencies:   USBDevice

STM32F103C8T6 USBSerial Demo

This project contains demo of the USB serial usage for a cheap developer board Blue Pill with STM32F103C8T6 mcu.

The USB serial port provides a good communication channel between PC and microcontroller. Especially it can be useful for a debug purposes.

Notes

• by the specifications this board has only 64KB of the flash, but actually it can have 128KB, that will be useful for a debug builds as it requires about 100KB of the flash for this demo.
• the board can have some problems with an USB because it has wrong value of the pull-up resistor
• for steady reading of data from a serial port, the project contains python script serial_reader.py (it requires PySerial and six python libraries), that is steady to the board reloading
• the project depends on the fork of the USBDevice library. This fork contains some fixes and support of the BLUE_PILL_STM32F103C8 target.
• the mbed-os now contains correct code for a clock initialization of the BLUE_PILL_STM32F103C8 target, so you don't need to adjust the board clocks separately

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.hgignore	Fri Aug 04 18:41:22 2017 +0300
@@ -0,0 +1,20 @@
+syntax: glob
+
+## python files
+__pycache__/
+*.py[cod]
+*$py.class
+
+## mbed-os directory
+mbed-os
+
+## build directory
+BUILD
+
+## IDE files
+# qtcreator 
+*.config
+*.creator
+*.creator.user
+*.files
+*.includes