diff options
Diffstat (limited to 'src/stm32lib/examples/ADC/ExtLinesTrigger/main.c')
| -rwxr-xr-x | src/stm32lib/examples/ADC/ExtLinesTrigger/main.c | 316 |
1 files changed, 316 insertions, 0 deletions
diff --git a/src/stm32lib/examples/ADC/ExtLinesTrigger/main.c b/src/stm32lib/examples/ADC/ExtLinesTrigger/main.c new file mode 100755 index 0000000..9ed1551 --- /dev/null +++ b/src/stm32lib/examples/ADC/ExtLinesTrigger/main.c @@ -0,0 +1,316 @@ +/******************** (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"
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+#define ADC1_DR_Address ((u32)0x4001244C)
+
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+ADC_InitTypeDef ADC_InitStructure;
+DMA_InitTypeDef DMA_InitStructure;
+vu16 ADC_RegularConvertedValueTab[64], ADC_InjectedConvertedValueTab[32];
+ErrorStatus HSEStartUpStatus;
+
+/* Private function prototypes -----------------------------------------------*/
+void RCC_Configuration(void);
+void GPIO_Configuration(void);
+void NVIC_Configuration(void);
+void EXTI_Configuration(void);
+
+/* Private functions ---------------------------------------------------------*/
+
+/*******************************************************************************
+* Function Name : main
+* Description : Main program
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+int main(void)
+{
+#ifdef DEBUG
+ debug();
+#endif
+
+ /* System clocks configuration ---------------------------------------------*/
+ RCC_Configuration();
+
+ /* NVIC configuration ------------------------------------------------------*/
+ NVIC_Configuration();
+
+ /* GPIO configuration ------------------------------------------------------*/
+ GPIO_Configuration();
+
+ /* EXTI configuration ------------------------------------------------------*/
+ EXTI_Configuration();
+
+ /* DMA1 channel1 configuration ----------------------------------------------*/
+ DMA_DeInit(DMA1_Channel1);
+ DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;
+ DMA_InitStructure.DMA_MemoryBaseAddr = (u32)ADC_RegularConvertedValueTab;
+ DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
+ DMA_InitStructure.DMA_BufferSize = 64;
+ DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
+ DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
+ DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
+ DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
+ DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
+ DMA_InitStructure.DMA_Priority = DMA_Priority_High;
+ DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
+ DMA_Init(DMA1_Channel1, &DMA_InitStructure);
+
+ /* Enable DMA1 channel1 */
+ DMA_Cmd(DMA1_Channel1, ENABLE);
+
+ /* ADC1 configuration ------------------------------------------------------*/
+ ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
+ ADC_InitStructure.ADC_ScanConvMode = ENABLE;
+ ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
+ ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_Ext_IT11_TIM8_TRGO;
+ ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
+ ADC_InitStructure.ADC_NbrOfChannel = 2;
+ ADC_Init(ADC1, &ADC_InitStructure);
+
+ /* ADC1 regular channels configuration */
+ ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 1, ADC_SampleTime_28Cycles5);
+ ADC_RegularChannelConfig(ADC1, ADC_Channel_14, 2, ADC_SampleTime_28Cycles5);
+
+ /* Regular discontinuous mode channel number configuration */
+ ADC_DiscModeChannelCountConfig(ADC1, 1);
+ /* Enable regular discontinuous mode */
+ ADC_DiscModeCmd(ADC1, ENABLE);
+
+ /* Enable ADC1 external trigger conversion */
+ ADC_ExternalTrigConvCmd(ADC1, ENABLE);
+
+ /* Set injected sequencer length */
+ ADC_InjectedSequencerLengthConfig(ADC1, 2);
+ /* ADC1 injected channel configuration */
+ ADC_InjectedChannelConfig(ADC1, ADC_Channel_11, 1, ADC_SampleTime_28Cycles5);
+ ADC_InjectedChannelConfig(ADC1, ADC_Channel_12, 2, ADC_SampleTime_28Cycles5);
+ /* ADC1 injected external trigger configuration */
+ ADC_ExternalTrigInjectedConvConfig(ADC1, ADC_ExternalTrigInjecConv_Ext_IT15_TIM8_CC4);
+ /* Enable ADC1 injected external trigger conversion */
+ ADC_ExternalTrigInjectedConvCmd(ADC1, ENABLE);
+
+ /* Enable JEOC interupt */
+ ADC_ITConfig(ADC1, ADC_IT_JEOC, ENABLE);
+
+ /* Enable ADC1 DMA */
+ ADC_DMACmd(ADC1, ENABLE);
+
+ /* Enable ADC1 */
+ ADC_Cmd(ADC1, ENABLE);
+
+ /* Enable ADC1 reset calibaration register */
+ ADC_ResetCalibration(ADC1);
+ /* Check the end of ADC1 reset calibration register */
+ while(ADC_GetResetCalibrationStatus(ADC1));
+
+ /* Start ADC1 calibaration */
+ ADC_StartCalibration(ADC1);
+ /* Check the end of ADC1 calibration */
+ while(ADC_GetCalibrationStatus(ADC1));
+
+ while (1)
+ {
+ }
+}
+
+/*******************************************************************************
+* 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);
+
+ /* ADCCLK = PCLK2/4 */
+ RCC_ADCCLKConfig(RCC_PCLK2_Div4);
+
+ /* PLLCLK = 8MHz * 7 = 56 MHz */
+ RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_7);
+
+ /* 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 peripheral clocks --------------------------------------------------*/
+ /* Enable DMA1 clock */
+ RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
+
+ /* Enable GPIOs and ADC1 clock */
+ RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOC |
+ RCC_APB2Periph_GPIOE | RCC_APB2Periph_AFIO |
+ RCC_APB2Periph_ADC1, ENABLE);
+}
+
+/*******************************************************************************
+* Function Name : EXTI_Configuration
+* Description : Configures the different EXTI lines.
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+void EXTI_Configuration(void)
+{
+ EXTI_InitTypeDef EXTI_InitStructure;
+
+ /* Select the EXTI Line11 the GPIO pin source */
+ GPIO_EXTILineConfig(GPIO_PortSourceGPIOE, GPIO_PinSource11);
+ /* EXTI line11 configuration -----------------------------------------------*/
+ EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Event;
+ EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
+ EXTI_InitStructure.EXTI_Line = EXTI_Line11;
+ EXTI_InitStructure.EXTI_LineCmd = ENABLE;
+ EXTI_Init(&EXTI_InitStructure);
+
+ /* Select the EXTI Line15 the GPIO pin source */
+ GPIO_EXTILineConfig(GPIO_PortSourceGPIOE, GPIO_PinSource15);
+ /* EXTI line15 configuration -----------------------------------------------*/
+ EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Event;
+ EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
+ EXTI_InitStructure.EXTI_Line = EXTI_Line15;
+ EXTI_InitStructure.EXTI_LineCmd = ENABLE;
+ EXTI_Init(&EXTI_InitStructure);
+}
+
+/*******************************************************************************
+* Function Name : GPIO_Configuration
+* Description : Configures the different GPIO ports.
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+void GPIO_Configuration(void)
+{
+ GPIO_InitTypeDef GPIO_InitStructure;
+
+ /* Configure PC.01, PC.02 and PC.04 (ADC Channel11, Channel12 and Channel14)
+ as analog input -----------------------------------------------------------*/
+ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_4;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
+ GPIO_Init(GPIOC, &GPIO_InitStructure);
+
+ /* Configure PA.04 (ADC Channel4) as analog input --------------------------*/
+ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
+ GPIO_Init(GPIOA, &GPIO_InitStructure);
+
+ /* Configure EXTI line11 ---------------------------------------------------*/
+ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+ GPIO_Init(GPIOE, &GPIO_InitStructure);
+
+ /* Configure EXTI line15 ---------------------------------------------------*/
+ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_15;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+ GPIO_Init(GPIOE, &GPIO_InitStructure);
+}
+
+/*******************************************************************************
+* Function Name : NVIC_Configuration
+* Description : Configures NVIC and Vector Table base location.
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+void NVIC_Configuration(void)
+{
+ NVIC_InitTypeDef NVIC_InitStructure;
+
+#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 and enable ADC interrupt */
+ NVIC_InitStructure.NVIC_IRQChannel = ADC1_2_IRQChannel;
+ NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
+ NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
+ NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+ NVIC_Init(&NVIC_InitStructure);
+}
+
+#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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