https://git.dryder.de/

-----

* CPU (vorhanden) -> http://wiki.stm32duino.com/index.php?title=Blue_Pill
** STM32F103C8T6
** ARM Cortex M3
** 64 KB/128 KB Flash; 20 KB RAM
** LED = PC13 (leuchtet bei LOW)

* Display (1 vorhanden) -> http://www.waveshare.com/2.13inch-e-paper-hat.htm http://www.waveshare.com/wiki/2.13inch_e-Paper_HAT http://www.waveshare.com/wiki/File:2.13inch_e-Paper_HAT-code.7z https://www.crystalfontz.com/product/cfap122250a00213-epaper-display-122x250-eink (-> Zip-Datei)
** SPI
** schwarz/weiß 250 × 122 Pixel

* Akku (3x vorhanden) -> https://www.ebay.de/p/2-X-Panasonic-NCR18650B-3-6v-3400-mAh-Lithium-ionen-Akku/4003304682?iid=292047078780
** Ladung bis 4,2V

* GPS (2x vorhanden, Olli?)
** https://www.sparkfun.com/products/13740
** http://www.telit.com/gnss/ (http://www.telit.com/gnss/sc872-a/)

* SD-Kartenslot (4x vorhanden) -> http://www.exp-tech.de/pololu-breakout-board-for-microsd-card

* Ladeschaltung (5x in fernost bestellt) -> http://www.ebay.com/itm/142421272780

* Spannungsversorgung (3x vorhanden) -> http://www.exp-tech.de/pololu-3-3v-step-up-step-down-spannungsregler-s7v8f3?___SID=U

* Touch (3x vorhanden) -> http://www.exp-tech.de/adafruit-12-key-capacitive-touch-sensor-breakout-mpr121

-----

HW-Anbindung:
GPS:      UART -> PA9 (TX1), PA10 (RX1)
Display:  SPI2 -> PB12 (NSS2), PB13 (SCK2), PB14 (MISO2), PB15 (MOSI2), PA8 (Busy), Reset des Display auf Vcc
SD-Karte: SPI1 -> PA7 (MOSI1), PA6 (MISO1), PA5 (SCK1), PA4 (NSS1)
Touch:    I2C-1 + WakeUp-IR (DigitalIn) -> PB6 (SCL1), PB7 (SDA1), PA0 (WKUP)
Akku:     AnalogIn -> PA1 (ADC1 - 12bit: 0-4095) (Messbereich: 0 - 4,35 V; Widerstandsteiler E24: 120k & 91k)

For Future Use:
2x Digital Out:   zum Zuschalten eines Bluetooth- und eines ESP8266-Moduls
Bluetooth-Modul:  UART-over-BT (RX vom BT-Modul an PA10/RX1)
ESP8266:          WLAN-Anbindung (WebServer, etc.) (Anbindung per UART: PA2/TX2 & PA3/RX2)

-----

Make:
(*http://gnuwin32.sourceforge.net/packages/make.htm)
(**http://gnuwin32.sourceforge.net/packages/libintl.htm)
(**http://gnuwin32.sourceforge.net/packages/libiconv.htm)
*https://sourceforge.net/projects/mingw/files/MinGW/Extension/make/

{{
C:\Users\edener\Desktop\seg\stm32f103c8t6\stm32f103-bootloader-master\STM32F1>make.exe --version
GNU Make 3.81
Copyright (C) 2006  Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.

This program built for i386-pc-mingw32
}}

Compiler:
GCC ARM Embedded Toolchain (vormals GNU Tools for ARM Embedded Processors)
{{D:\gcc-arm-none-eabi-6-2017-q2-update-win32\arm-none-eabi\bin}}
https://developer.arm.com/open-source/gnu-toolchain/gnu-rm
https://www.mikrocontroller.net/articles/ARM_GCC
https://gnu-mcu-eclipse.github.io/toolchain/arm/install/

aus Arduino:
{{
C:\Users\edener\AppData\Local\Arduino15\packages\arduino\tools\arm-none-eabi-gcc.8.3-2014q1\bin>arm-none-eabi-gcc.exe --version
arm-none-eabi-gcc.exe (GNU Tools for ARM Embedded Processors) 4.8.3 20140228 (release) [ARM/embedded-4_8-branch revision 208322]
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. 
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
}}

-----

Bootloader: 
https://github.com/trueserve/stm32f103-bootloader
Blue Pill = TARGET_GENERIC_F103_PC13         (GPIOC 13)

{{
set PATH=C:\Users\edener\AppData\Local\Arduino15\packages\arduino\tools\arm-none-eabi-gcc.8.3-2014q1\bin\;%PATH%
make.exe generic-pc13
pause
}}

-----

Download-Batch:

{{
:loop1

rem dfu-util -l
dfu-util -a 2 -D <file>.bin

if %ERRORLEVEL% EQU 0 goto :end

timeout /t 1
goto :loop1

:end
echo Download beendet
pause
}}

-----

Applikation:

- im Linker-Skript (*.ld):
{{  rom (rx)  : ORIGIN = 0x08002000, LENGTH = 120K  }}
- zu Beginn der Applikation die Vector-Tabelle ummappen:
{{SCB->VTOR = 0x08002000}}

-----

SW-Libs:
https://github.com/mikalhart/TinyGPS

SW-Links:
https://visualgdb.com/w/tutorials/category/tutorials/embedded/stm32_periph/

https://www.cs.indiana.edu/~geobrown/book.pdf

-----

Spannungskennlinie der Akkus (Abschätzung Ladezustand anhand der Spannung):
http://budgetlightforum.com/node/11772

-----