From 9bc221d2c6b3d4b69fdfa2ab3d5cafc05a5d7304 Mon Sep 17 00:00:00 2001
From: Thomas Gravekamp <me@thomas-gravekamp.nl>
Date: Tue, 31 Oct 2017 23:33:50 +0100
Subject: Add initial files.

---
 .gitignore |  3 +++
 Makefile   |  5 +++++
 README.md  |  7 +++++++
 src/main.c | 33 +++++++++++++++++++++++++++++++++
 4 files changed, 48 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Makefile
 create mode 100644 README.md
 create mode 100644 src/main.c

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);
+    }
+}
-- 
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