diff options
Diffstat (limited to 'src/stm32lib/examples/NVIC/Priority/main.c')
| -rwxr-xr-x | src/stm32lib/examples/NVIC/Priority/main.c | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/src/stm32lib/examples/NVIC/Priority/main.c b/src/stm32lib/examples/NVIC/Priority/main.c deleted file mode 100755 index 711d54a..0000000 --- a/src/stm32lib/examples/NVIC/Priority/main.c +++ /dev/null @@ -1,252 +0,0 @@ -/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
-* File Name : main.c
-* Author : MCD Application Team
-* Version : V2.0.1
-* Date : 06/13/2008
-* Description : Main program body
-********************************************************************************
-* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
-* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
-* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
-* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
-* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
-* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
-*******************************************************************************/
-
-/* Includes ------------------------------------------------------------------*/
-#include "stm32f10x_lib.h"
-#include "platform_config.h"
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-NVIC_InitTypeDef NVIC_InitStructure;
-GPIO_InitTypeDef GPIO_InitStructure;
-EXTI_InitTypeDef EXTI_InitStructure;
-bool PreemptionOccured = FALSE;
-u8 PreemptionPriorityValue = 0;
-ErrorStatus HSEStartUpStatus;
-
-/* Private function prototypes -----------------------------------------------*/
-void RCC_Configuration(void);
-void GPIO_Configuration(void);
-void EXTI_Configuration(void);
-void Delay(vu32 nCount);
-
-/* Private functions ---------------------------------------------------------*/
-
-/*******************************************************************************
-* Function Name : main
-* Description : Main program.
-* Input : None
-* Output : None
-* Return : None
-*******************************************************************************/
-int main(void)
-{
-#ifdef DEBUG
- debug();
-#endif
-
- /* Configure the system clocks */
- RCC_Configuration();
-
- /* Configure GPIOs */
- GPIO_Configuration();
-
- /* Configures the EXTI Lines */
- EXTI_Configuration();
-
-#ifdef VECT_TAB_RAM
- /* Set the Vector Table base location at 0x20000000 */
- NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
-#else /* VECT_TAB_FLASH */
- /* Set the Vector Table base location at 0x08000000 */
- NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
-#endif
-
- /* Configure one bit for preemption priority */
- NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
-
- /* Enable the EXTI0 Interrupt */
- NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQChannel;
- NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = PreemptionPriorityValue;
- NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
- NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
- NVIC_Init(&NVIC_InitStructure);
-
- /* Enable the EXTI9_5 Interrupt */
- NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQChannel;
- NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
- NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
- NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
- NVIC_Init(&NVIC_InitStructure);
-
- /* Configure the SysTick Handler Priority: Preemption priority and subpriority */
- NVIC_SystemHandlerPriorityConfig(SystemHandler_SysTick, !PreemptionPriorityValue, 0);
-
- while (1)
- {
- if(PreemptionOccured != FALSE)
- {
- GPIO_WriteBit(GPIO_LED, GPIO_Pin_6, (BitAction)(1 - GPIO_ReadOutputDataBit(GPIO_LED, GPIO_Pin_6)));
- Delay(0x5FFFF);
- GPIO_WriteBit(GPIO_LED, GPIO_Pin_7, (BitAction)(1 - GPIO_ReadOutputDataBit(GPIO_LED, GPIO_Pin_7)));
- Delay(0x5FFFF);
- GPIO_WriteBit(GPIO_LED, GPIO_Pin_8, (BitAction)(1 - GPIO_ReadOutputDataBit(GPIO_LED, GPIO_Pin_8)));
- Delay(0x5FFFF);
- GPIO_WriteBit(GPIO_LED, GPIO_Pin_9, (BitAction)(1 - GPIO_ReadOutputDataBit(GPIO_LED, GPIO_Pin_9)));
- Delay(0x5FFFF);
- }
- }
-}
-
-/*******************************************************************************
-* Function Name : RCC_Configuration
-* Description : Configures the different system clocks
-* Input : None
-* Output : None
-* Return : None
-*******************************************************************************/
-void RCC_Configuration(void)
-{
- /* 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(FLASH_PrefetchBuffer_Enable);
-
- /* Flash 2 wait state */
- FLASH_SetLatency(FLASH_Latency_2);
-
- /* HCLK = SYSCLK */
- RCC_HCLKConfig(RCC_SYSCLK_Div1);
-
- /* PCLK2 = HCLK */
- RCC_PCLK2Config(RCC_HCLK_Div1);
-
- /* PCLK1 = HCLK/2 */
- 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)
- {
- }
- }
-
- /* Enable GPIOA, GPIO KEY Button, GPIO_LED and AFIO Clocks */
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIO_KEY_BUTTON |
- RCC_APB2Periph_GPIO_LED | RCC_APB2Periph_AFIO, ENABLE);
-}
-
-/*******************************************************************************
-* Function Name : GPIO_Configuration
-* Description : Configures the used GPIO pins.
-* Input : None
-* Output : None
-* Return : None
-*******************************************************************************/
-void GPIO_Configuration(void)
-{
- /* Configure GPIO_LED pin 6, GPIO_LED pin 7, GPIO_LED pin 8 and GPIO_LED pin 9 as output push-pull */
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
- GPIO_Init(GPIO_LED, &GPIO_InitStructure);
-
- /* Configure PA.00 as input floating */
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
- GPIO_Init(GPIOA, &GPIO_InitStructure);
-
- /* Configure KEY Button GPIO pin as input floating */
- GPIO_InitStructure.GPIO_Pin = GPIO_PIN_KEY_BUTTON;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
- GPIO_Init(GPIO_KEY_BUTTON, &GPIO_InitStructure);
-}
-
-/*******************************************************************************
-* Function Name : EXTI_Configuration
-* Description : Configures the used EXTI lines.
-* Input : None
-* Output : None
-* Return : None
-*******************************************************************************/
-void EXTI_Configuration(void)
-{
- /* Connect EXTI Line0 to PA.00 */
- GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource0);
-
- /* Configure EXTI Line0 to generate an interrupt on falling edge */
- EXTI_InitStructure.EXTI_Line = EXTI_Line0;
- EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
- EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
- EXTI_InitStructure.EXTI_LineCmd = ENABLE;
- EXTI_Init(&EXTI_InitStructure);
-
- /* Connect KEY Button EXTI Line to KEY Button GPIO pin */
- GPIO_EXTILineConfig(GPIO_PORT_SOURCE_KEY_BUTTON, GPIO_PIN_SOURCE_KEY_BUTTON);
-
- /* Configure KEY Button EXTI Line to generate an interrupt on falling edge */
- EXTI_InitStructure.EXTI_Line = EXTI_LINE_KEY_BUTTON;
- EXTI_Init(&EXTI_InitStructure);
-}
-
-/*******************************************************************************
-* Function Name : Delay
-* Description : Inserts a delay time.
-* Input : nCount: specifies the delay time length.
-* Output : None
-* Return : None
-*******************************************************************************/
-void Delay(vu32 nCount)
-{
- for(; nCount != 0; nCount--);
-}
-
-#ifdef DEBUG
-/*******************************************************************************
-* Function Name : assert_failed
-* Description : Reports the name of the source file and the source line number
-* where the assert_param error has occurred.
-* Input : - file: pointer to the source file name
-* - line: assert_param error line source number
-* Output : None
-* Return : None
-*******************************************************************************/
-void assert_failed(u8* file, u32 line)
-{
- /* User can add his own implementation to report the file name and line number,
- ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
-
- /* Infinite loop */
- while (1)
- {
- }
-}
-#endif
-
-/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/
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