Playground to start with minimum STM32F103C8 boards and ST7735 driven TFT displays with SD card slot from ebay
- Tested and more elaborated code for steering a LCD 128x160 ST7735 driven display
- Works with maple mini clones or stm32 minimum system ( STM32F103C8 or STM32F103CB on a small PCB )
- Uses SD or SDHC class 4 cards with FATFS to read from (and to write to)
- Code for IMU MPU-9250 with examples
- Code for Futaba S-Bus with examples
- Shows examples of ADC and USB CDC usage
- Flies as quadrocopter now
- Based on ST Firmware from F1 and F4 archives (see each file for STM COPYRIGHT)
- Initial created by CubeMX (currently 4.15.1)
Installation ( Linux ):
- Install Eclipse (Mars)
- Install OpenSTM32 SystemWorkbench http://www.openstm32.org/Installing+System+Workbench+for+STM32+from+Eclipse
- Restart Eclipse with empty folder as workspace and click on "Workbench"
- Import: In "Workbench" goto File -> Import -> Git -> from Uri and select the current workspace folder as destination for mini-sys
Hints for usage:
- Compile and link first. Project -> "build all"
- Go to Project Explorer right click on Debug/mini-sys.elf
- Select "Debug As"-> "Debug Configurations ..."
- Change Name to "mini-sys.elf-Debug", click Apply
- In "Debugger" tab "Use local script" browse/select STM32F103C8T6-mini.cfg", click Apply
- Copy the BMPs to a SD card and insert.
- Find pin connections in mini-sys.pdf and mini-sys/Drivers/STM32F1xx_MiniSys/stm32f1xx_minisys.h
- Click on the run symbol.
- Semantic error 'SysTick_IRQn' could not be resolved (cosmetics): In Project Explorer right click on top (mini-sys) -> Properties -> C/C++ General (Tree) -> Indexer -> click on link "Configure Workspace Settings" (new window) -> uncheck "index unused headers" -> Apply
- Optional: Install CubeMX (4.15.1) and load project to be able to modify the configuration the easy way.
- If all code is used, now it fits only to the STM32F103CBT6 (maple mini clone) with 128k flash. You have to edit STM32F103C8Ty_FLASH.ld (64K -> 128K) after having recreated the project with CubeMX
Bootloader:
If using my bootloader https://github.com/nichtgedacht/bootloader one have to edit 2 files:
- edit linker script STM32F103C8Tx_FLASH.ld. Change flash origin and length to: FLASH (rx) : ORIGIN = 0x8004000, LENGTH = 112K
- edit Drivers/CMSIS/Device/ST/STM32F1xx/Source/Templates/system_stm32f1xx.c. Change VECT_TAB_OFFSET to VECT_TAB_OFFSET 0x4000
This way the application will be linked properly for an offset of 16k in flash and the addresses of the interrupt vectors are correct.
Configurator101:
Configuration of the Quadrocopter can be done with my configuaration tool https://github.com/nichtgedacht/configurator101
Screenshots:
Pictures:
