From d4e7c2c1d53fd4aaa47fd370e8b4cc3c981cb12e Mon Sep 17 00:00:00 2001
From: Thomas Gravekamp <me@thomas-gravekamp.nl>
Date: Fri, 8 Mar 2019 20:23:14 +0100
Subject: Make this template use the standard CMSIS

---
 Makefile             |   2 +
 src/STM32F0xx_init.c | 108 ---------------------------------------------------
 src/main.c           |   2 +-
 3 files changed, 3 insertions(+), 109 deletions(-)
 delete mode 100644 src/STM32F0xx_init.c

diff --git a/Makefile b/Makefile
index 4a84ce2..819c74b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,7 @@
 DEVICE = STM32F030x4
 FLASH  = 0x08000000
 
+USE_ST_CMSIS = true
+
 # Include the main makefile
 include ./STM32-base/make/common.mk
diff --git a/src/STM32F0xx_init.c b/src/STM32F0xx_init.c
deleted file mode 100644
index 47c81d4..0000000
--- a/src/STM32F0xx_init.c
+++ /dev/null
@@ -1,108 +0,0 @@
-#include "STM32F0xx.h"
-#include "common.h"
-
-/**
- * Initialize the HSI clock source and reset the PLL configuration. This
- * function is called by the startup_common.s file, just before calling the
- * main() function.
- *
- * You can adapt this function to fit your needs, however, do not change its
- * name! It is called in the startup code.
- */
-void SystemInit (void) {
-  // Set HSION bit
-  RCC->CR |= (uint32_t)0x00000001U;
-
-#if defined (STM32F051x8) || \
-    defined (STM32F058x8)
-  // Reset SW[1:0], HPRE[3:0], PPRE[2:0], ADCPRE and MCOSEL[2:0] bits
-  RCC->CFGR &= (uint32_t)0xF8FFB80CU;
-#else
-  // Reset SW[1:0], HPRE[3:0], PPRE[2:0], ADCPRE, MCOSEL[2:0], MCOPRE[2:0] and PLLNODIV bits
-  RCC->CFGR &= (uint32_t)0x08FFB80CU;
-#endif
-
-  // Reset HSEON, CSSON and PLLON bits
-  RCC->CR &= (uint32_t)0xFEF6FFFFU;
-
-  // Reset HSEBYP bit
-  RCC->CR &= (uint32_t)0xFFFBFFFFU;
-
-  // Reset PLLSRC, PLLXTPRE and PLLMUL[3:0] bits
-  RCC->CFGR &= (uint32_t)0xFFC0FFFFU;
-
-  // Reset PREDIV[3:0] bits
-  RCC->CFGR2 &= (uint32_t)0xFFFFFFF0U;
-
-#if defined (STM32F072xB) || \
-    defined (STM32F078xx)
-  // Reset USART2SW[1:0], USART1SW[1:0], I2C1SW, CECSW, USBSW and ADCSW bits
-  RCC->CFGR3 &= (uint32_t)0xFFFCFE2CU;
-
-#elif defined (STM32F071xB)
-  // Reset USART2SW[1:0], USART1SW[1:0], I2C1SW, CECSW and ADCSW bits
-  RCC->CFGR3 &= (uint32_t)0xFFFFCEACU;
-
-#elif defined (STM32F091xC) || \
-      defined (STM32F098xx)
-  // Reset USART3SW[1:0], USART2SW[1:0], USART1SW[1:0], I2C1SW, CECSW and ADCSW bits
-  RCC->CFGR3 &= (uint32_t)0xFFF0FEACU;
-
-#elif defined (STM32F030x6) || \
-      defined (STM32F030x8) || \
-      defined (STM32F031x6) || \
-      defined (STM32F038xx) || \
-      defined (STM32F030xC)
-  // Reset USART1SW[1:0], I2C1SW and ADCSW bits
-  RCC->CFGR3 &= (uint32_t)0xFFFFFEECU;
-
-#elif defined (STM32F051x8) || \
-      defined (STM32F058xx)
-  // Reset USART1SW[1:0], I2C1SW, CECSW and ADCSW bits
-  RCC->CFGR3 &= (uint32_t)0xFFFFFEACU;
-
-#elif defined (STM32F042x6) || \
-      defined (STM32F048xx)
-  // Reset USART1SW[1:0], I2C1SW, CECSW, USBSW and ADCSW bits
-  RCC->CFGR3 &= (uint32_t)0xFFFFFE2CU;
-
-#elif defined (STM32F070x6) || \
-      defined (STM32F070xB)
-  // Reset USART1SW[1:0], I2C1SW, USBSW and ADCSW bits
-  RCC->CFGR3 &= (uint32_t)0xFFFFFE6CU;
-  // Set default USB clock to PLLCLK, since there is no HSI48
-  RCC->CFGR3 |= (uint32_t)0x00000080U;
-
-#else
-  #warning "No target selected"
-#endif
-
-  // Reset HSI14 bit
-  RCC->CR2 &= (uint32_t)0xFFFFFFFEU;
-
-  // Disable all interrupts
-  RCC->CIR = 0x00000000U;
-}
-
-// These symbols are provided by the linker
-extern void (*__preinit_array_start[])();
-extern void (*__preinit_array_end[])();
-extern void (*__init_array_start[])();
-extern void (*__init_array_end[])();
-
-/**
- * Calls the functions in the preinit and init arrays. The start and end
- * addresses of these arrays are provided by the linker.
- *
- * You can adapt this function to fit your needs, however, do not change its
- * name! It is called in the startup code.
- */
-void __main () {
-  for (void (**f)() = __preinit_array_start; f < __preinit_array_end; ++f) {
-    (*f)();
-  }
-
-  for (void (**f)() = __init_array_start; f < __init_array_end; ++f) {
-    (*f)();
-  }
-}
diff --git a/src/main.c b/src/main.c
index 16d2409..0365c80 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,4 +1,4 @@
-#include "STM32F0xx.h"
+#include "stm32f0xx.h"
 
 // Quick and dirty delay
 static void delay (unsigned int time) {
-- 
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