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Update SystemCoreClock global variableĬlean project from any previous build then rebuild all. *- Use PA8 as MCO output at 48/16 = 3MHz -*/ } while ((SW_Status != RCC_CFGR_SWS_PLL) & (timeout > 0)) SW_Status = (RCC->CFGR & RCC_CFGR_SWS_Msk) Wait until PLL becomes main switch input Select the main PLL as system clock source * - Switching to PLL at 48MHz Now! Fasten your seat belt! -*/ * - Until this point, MCU was still clocked by HSI at 8MHz -*/ Enable FLASH Prefetch Buffer and set Flash Latency (required for high speed)įLASH->ACR = FLASH_ACR_PRFTBE | FLASH_ACR_LATENCY } while ((PLL_Status = 0) & (timeout > 0)) PLL_Status = RCC->CR & RCC_CR_PLLRDY_Msk } while ((HSE_Status = 0) & (timeout > 0)) HSE_Status = RCC->CR & RCC_CR_HSERDY_Msk Now, edit main.c with a very minimal code: /*

Use the above buttons to add /remove or edit include paths.Īpply all this settings, and then return to the main window.

You also need to check that all include paths are defined in Tool Settings → C Compiler → Directories.

Use the above buttons to add /remove or edit include symbols.

You need to define the correct pre-processor symbol in order to include the rigth STM32 header.

Then make sure that the linker script is correctly set the linker settings. You can accept this, and save the linker script in the project directory. The above operation may ask you to create a new linker script file. Review the build configuration to make sure that everything is set correctly. You may refer to STM32 tutorials above to setup such a starting project.

Basically you may want a minimal set of BSP functions for working with LED, Push-button, and debug console (printf). Start a new empty C Project and copy a minimal set of source files in order to have a basic (e.g. The foundation : A clean bare-metal working project You may refer to above tutorials for more details on installing and using Atollic IDE.ġ. FreeRTOS tutorials have been tested and illustrated using Atollic TrueStudio® for STM32 IDE.