Hi there!
I just recently decided to move to ARM based MCUs from 8-bit AVRs.
I bought myself a NUCLEO-F303K8 board to start exploring. I started with STM32CubeIDE and hated it.
So... I decided to get Keil-MDK and so far, I like it.
I installed all the device specific drivers for the whole F3 family of MCUs and in project creation, I chose the STM32F303K8T6 that is on the evaluation board.
I only included CMSIS->Core package and Device->Startup package as shown in the picture below.
I then encountered a strange problem when building the solution. It said that a header file was missing that apparently is part of HAL (I did not include any HAL libraries).
D:/Programi/Keil_v5/Packs/Keil/STM32F3xx_DFP/2.2.0/Drivers/CMSIS/Device/ST/STM32F3xx/Include\stm32f3xx.h(213): error: 'stm32f3xx_hal.h' file not found
I found out that an auto-generated header file includes the option to use the HAL driver, however, I never selected any HAL library. By commenting it out.
/* * Auto generated Run-Time-Environment Configuration File * *** Do not modify ! *** * * Project: 'test' * Target: 'Target 1' */ #ifndef PRE_INCLUDE_GLOBAL_H #define PRE_INCLUDE_GLOBAL_H /* Keil.Standalone::Device:Startup:1.11.2 */ #define USE_HAL_DRIVER #define USE_FULL_LL_DRIVER #endif /* PRE_INCLUDE_GLOBAL_H */
By commenting out "#define USE_HAL_DRIVER" I got a simple blinking example to work.
However, the header file says that it should not be modified.
I must have missed the option to not use the HAL driver somewhere, but I cannot figure out where.
What am I doing wrong?
The rest of the code:
#include "stm32f3xx.h" int main(void) { RCC->AHBENR |= (1 << 18); // Enable clock for I/O port B GPIOB->MODER |= (1 << 6); // Pin PB3 set as general purpose output GPIOB->MODER &= (unsigned int)(~(1 << 7)); // Push-pull output by default GPIOB->OSPEEDR |= (1 << 6) | (1 << 7); // High speed output while(1) { GPIOB->BSRR = (1 << 3); // Set PB3 for(uint32_t i = 0; i < 500000; i++); GPIOB->BSRR = (1 << 19); // Reset PB3 for(uint32_t i = 0; i < 500000; i++); } }