1 files changed, 85 insertions, 0 deletions
diff --git a/src/wiring/wiring.c b/src/wiring/wiring.c
new file mode 100644
index 0000000..83679c7
--- /dev/null
+++ b/src/wiring/wiring.c
@@ -0,0 +1,85 @@
+#include <inttypes.h>
+#include "stm32f10x_flash.h"
+#include "stm32f10x_rcc.h"
+#include "stm32f10x_map.h"
+#include "stm32f10x_nvic.h"
+#include "wiring.h"
+#include "systick.h"
+#include "gpio.h"
+
+void RCC_Configuration(void);
+void NVIC_Configuration(void);
+
+void init(void) {
+   RCC_Configuration();
+   RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA |
+                          RCC_APB2Periph_GPIOB |
+                          RCC_APB2Periph_GPIOC |
+                          RCC_APB2Periph_AFIO
+                        , ENABLE);
+   NVIC_Configuration();
+
+   systick_init();
+
+   gpio_init();
+
+   /* off for debug  */
+//   adc_init();
+
+//   timer_init(1, 1);
+//   timer_init(2, 1);
+//   timer_init(3, 1);
+//   timer_init(4, 1);
+}
+
+void NVIC_Configuration(void) {
+   /* Set the Vector Table base location at 0x08000000 */
+   NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
+}
+
+
+void RCC_Configuration(void) {
+   ErrorStatus HSEStartUpStatus;
+   /* RCC system reset(for debug purpose) */
+   RCC_DeInit();
+
+   /* Enable HSE */
+   RCC_HSEConfig(RCC_HSE_ON);
+
+   /* Wait till HSE is ready */
+   HSEStartUpStatus = RCC_WaitForHSEStartUp();
+
+   if(HSEStartUpStatus == SUCCESS) {
+      /* Enable Prefetch Buffer */
+      FLASH_PrefetchBufferCmd( (u32)FLASH_PrefetchBuffer_Enable);
+
+      /* Flash 2 wait state */
+      FLASH_SetLatency(FLASH_Latency_2);
+
+      /* HCLK = SYSCLK */
+      RCC_HCLKConfig(RCC_SYSCLK_Div1);
+
+      /* PCLK2 = HCLK APB2 Periphs, no prescaler 72MHz */
+      RCC_PCLK2Config(RCC_HCLK_Div1);
+
+      /* PCLK1 = HCLK/2 APB1 periphs = 36MHZ*/
+      RCC_PCLK1Config(RCC_HCLK_Div2);
+
+      /* PLLCLK = 8MHz * 9 = 72 MHz */
+      RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
+
+      /* Enable PLL */
+      RCC_PLLCmd(ENABLE);
+
+      /* Wait till PLL is ready */
+      while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
+          ;
+
+      /* Select PLL as system clock source */
+      RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
+
+      /* Wait till PLL is used as system clock source */
+      while(RCC_GetSYSCLKSource() != 0x08)
+          ;
+   }
+}