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| author | Thomas Gravekamp <me@thomas-gravekamp.nl> | 2017-10-31 23:33:50 +0100 |
|---|---|---|
| committer | Thomas Gravekamp <me@thomas-gravekamp.nl> | 2017-10-31 23:34:43 +0100 |
| commit | 9bc221d2c6b3d4b69fdfa2ab3d5cafc05a5d7304 (patch) | |
| tree | 85bf83e137461ec89ba74fd27e472a362102d77c | |
| parent | c5a0d0355b72aca0ce9a92225130600ff30de54b (diff) | |
Add initial files.
| -rw-r--r-- | .gitignore | 3 | ||||
| -rw-r--r-- | Makefile | 5 | ||||
| -rw-r--r-- | README.md | 7 | ||||
| -rw-r--r-- | src/main.c | 33 |
4 files changed, 48 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..99e62ac --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +STM32-base +bin +sobj diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..4a84ce2 --- /dev/null +++ b/Makefile @@ -0,0 +1,5 @@ +DEVICE = STM32F030x4 +FLASH = 0x08000000 + +# Include the main makefile +include ./STM32-base/make/common.mk diff --git a/README.md b/README.md new file mode 100644 index 0000000..1fccee0 --- /dev/null +++ b/README.md @@ -0,0 +1,7 @@ +# STM32-base F0 template + +This repository contains a template for starting projects based on the STM32F0 series devices using the [STM32-base repository](https://github.com/ThomasGravekamp/STM32-base). The code found in this repository has been tested with a STM32F030x4 device. + +## Usage + +To use this template, clone the [STM32-base repository](https://github.com/ThomasGravekamp/STM32-base) either directly in this templates folder or create a symbolic link to it. diff --git a/src/main.c b/src/main.c new file mode 100644 index 0000000..e9a7b77 --- /dev/null +++ b/src/main.c @@ -0,0 +1,33 @@ +#include <stm32f0xx.h> + +// Quick and dirty delay +static void delay (unsigned int time) { + for (unsigned int i = 0; i < time; i++) + for (volatile unsigned int j = 0; j < 2000; j++); +} + +int main (void) { + // Turn on the GPIOA peripheral + RCC->AHBENR |= RCC_AHBENR_GPIOAEN; + + // Put pin in general purpose output mode (B01) + GPIOA->MODER |= GPIO_MODER_MODER4_0; + // Set the output type to push pull (B0 = default) + // GPIOA->OTYPER = ~GPIO_OTYPER_OT_4; + // Set the output speed to low (B00 = default) + // GPIOA->OSPEEDR &= ~GPIO_OSPEEDER_OSPEEDR4; + // Set the pull up/down resistors (B00 = default) + // GPIOA->PUPDR &= ~GPIO_PUPDR_PUPDR4; + + while (1) { + // Reset the bit for port A4 + GPIOA->BSRR = GPIO_BSRR_BR_4; + + delay(500); + + // Set the bit for port A4 + GPIOA->BSRR = GPIO_BSRR_BS_4; + + delay(500); + } +} |