diff options
Diffstat (limited to 'src/stm32lib/examples/DMA/ADC_TIM1/main.c')
| -rwxr-xr-x | src/stm32lib/examples/DMA/ADC_TIM1/main.c | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/src/stm32lib/examples/DMA/ADC_TIM1/main.c b/src/stm32lib/examples/DMA/ADC_TIM1/main.c new file mode 100755 index 0000000..1a5b578 --- /dev/null +++ b/src/stm32lib/examples/DMA/ADC_TIM1/main.c @@ -0,0 +1,262 @@ +/******************** (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 0x4001244C
+#define TIM1_CCR1_Address 0x40012C34
+
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+ErrorStatus HSEStartUpStatus;
+ADC_InitTypeDef ADC_InitStructure;
+TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
+TIM_OCInitTypeDef TIM_OCInitStructure;
+DMA_InitTypeDef DMA_InitStructure;
+
+/* Private function prototypes -----------------------------------------------*/
+void RCC_Configuration(void);
+void GPIO_Configuration(void);
+void NVIC_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();
+
+ /* Configure the GPIO ports */
+ GPIO_Configuration();
+
+ /* DMA1 Channel5 configuration ----------------------------------------------*/
+ DMA_DeInit(DMA1_Channel5);
+ DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)TIM1_CCR1_Address;
+ DMA_InitStructure.DMA_MemoryBaseAddr = (u32)ADC1_DR_Address;
+ DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
+ DMA_InitStructure.DMA_BufferSize = 1;
+ DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
+ DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;
+ 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_Channel5, &DMA_InitStructure);
+ /* Enable DMA1 Channel5 */
+ DMA_Cmd(DMA1_Channel5, ENABLE);
+
+ /* ADC1 configuration ------------------------------------------------------*/
+ ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
+ ADC_InitStructure.ADC_ScanConvMode = DISABLE;
+ ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
+ ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
+ ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
+ ADC_InitStructure.ADC_NbrOfChannel = 1;
+ ADC_Init(ADC1, &ADC_InitStructure);
+
+ /* ADC1 RegularChannelConfig Test */
+ ADC_RegularChannelConfig(ADC1, ADC_Channel_14, 1, ADC_SampleTime_55Cycles5);
+
+ /* TIM1 configuration ------------------------------------------------------*/
+ /* Time Base configuration */
+ TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
+ TIM_TimeBaseStructure.TIM_Period = 0xFF0;
+ TIM_TimeBaseStructure.TIM_Prescaler = 0x0;
+ TIM_TimeBaseStructure.TIM_ClockDivision = 0x0;
+ TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
+ TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);
+ /* Channel1 Configuration in PWM mode */
+ TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
+ TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
+ TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
+ TIM_OC1Init(TIM1, &TIM_OCInitStructure);
+
+ /* Enable TIM1 */
+ TIM_Cmd(TIM1, ENABLE);
+ /* Enable TIM1 outputs */
+ TIM_CtrlPWMOutputs(TIM1, ENABLE);
+
+ /* Enable TIM1 DMA interface */
+ TIM_DMACmd(TIM1, TIM_DMA_Update, 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));
+
+ /* Start ADC1 conversion */
+ ADC_SoftwareStartConvCmd(ADC1, ENABLE);
+
+ 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 = PCLK2/8 */
+ RCC_ADCCLKConfig(RCC_PCLK2_Div8);
+
+ /* 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 peripheral clocks --------------------------------------------------*/
+ /* Enable DMA1 clock */
+ RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
+ /* Enable GPIOA, GPIOC, ADC1 and TIM1 Periph clock */
+ RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOC |
+ RCC_APB2Periph_ADC1 | RCC_APB2Periph_TIM1, ENABLE);
+}
+
+/*******************************************************************************
+* 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 TIM1 Channel1 output */
+ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+ GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+ GPIO_Init(GPIOA, &GPIO_InitStructure);
+
+ /* Configure ADC Channel14 as analog input */
+ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 ;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
+ GPIO_Init(GPIOC, &GPIO_InitStructure);
+}
+
+/*******************************************************************************
+* Function Name : NVIC_Configuration
+* Description : Configures Vector Table base location.
+* Input : None
+* Output : None
+* Return : None
+*******************************************************************************/
+void NVIC_Configuration(void)
+{
+#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
+}
+
+#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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