stm32f4_cmsis_template for Eclipse IDE

This is a CMSIS project template for STM32F4 microcontroller to develop on GNU ARM Eclipse. The HAL dependency is removed.

Usage

1. Download the ZIP archive and rename the directory to the new project name.
2. Import the project as existing Eclipse project. The project name will be stm32f4_cmsis_template at this point.
3. Rename the project name using the refactoring menu.

The template contains the simple blinky example in src/main.c for STM32F4-Discovery board. Building project will make both hex and elf files.

Clock Settings

The board initialization is done in src/_initialize_hardware.c. Here is the default settings.

• HSE Oscillator is enabled by compiler option, HSE_VALUE.
• PLL source is set to HSE.
• VCO in PLL is set 1MHz.
• PLLN is set 336. Thus VCO x PLLN = 336 MHz.
• PLLP is set 2. Thus PLLN / PLLP = 168 MHz. --> This is set for SYSCLK.
• PLLQ is set 7. Thus PLLN / PLLQ = 48 MHz for USB OTG FS, SDIO, and RNG.
• SYSCLK source is PLLCLK (168 MHz).
• AHB is equal to SYSCLK. AHB = 168 MHz.
• Low speed bus APB1 = AHB / 4 = 42 MHz.
• High speed bus APB2 = AHB / 2 = 84 MHz.