Richard Vasquez
won't compile
Diff: main.c
- Revision:
- 0:b079fa4ed182
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.c Wed Nov 02 23:50:52 2016 +0000
@@ -0,0 +1,232 @@
+/**
+ ******************************************************************************
+ * @file DMA_RAM_DAC/main.c
+ * @author MCD Application Team
+ * @version V1.0.0
+ * @date 20-June-2014
+ * @brief Main program body
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT 2014 STMicroelectronics</center></h2>
+ *
+ * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.st.com/software_license_agreement_liberty_v2
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+
+/** @addtogroup STM32F3348_DISCOVERY_Examples
+ * @{
+ */
+
+/** @addtogroup DMA_RAM_DAC
+ * @{
+ */
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+uint32_t DualSine12bit[32];
+
+/* Private function prototypes -----------------------------------------------*/
+static void TIM_Config(void);
+static void DAC_Config(void);
+static void DMA_Config(void);
+
+/* Private functions ---------------------------------------------------------*/
+
+/**
+ * @brief Main program.
+ * @param None
+ * @retval None
+ */
+int main(void)
+{
+ uint16_t Sine12bit[32] = {
+ 2047, 2447, 2831, 3185, 3498, 3750, 3939, 4056, 4095, 4056,
+ 3939, 3750, 3495, 3185, 2831, 2447, 2047, 1647, 1263, 909,
+ 599, 344, 155, 38, 0, 38, 155, 344, 599, 909, 1263, 1647};
+ uint32_t Index = 0;
+
+ /*!< At this stage the microcontroller clock setting is already configured,
+ this is done through SystemInit() function which is called from startup
+ file (startup_stm32f334x8.s) before to branch to application main.
+ To reconfigure the default setting of SystemInit() function, refer to
+ system_stm32f30x.c file
+ */
+
+ /* Fill DualSine12bit table */
+ for (Index = 0; Index < 32; Index++)
+ {
+ DualSine12bit[Index] = (Sine12bit[Index] << 16) + (Sine12bit[Index]);
+ }
+
+ /* DMA1 channel3 configuration: DualSine12bit is used as memory base address */
+ DMA_Config();
+
+ /* DAC configuration ------------------------------------------------------*/
+ DAC_Config();
+
+ /* TIM2 configuration ------------------------------------------------------*/
+ TIM_Config();
+
+ while (1)
+ {
+ }
+}
+
+/**
+ * @brief Configures the TIM2
+ * @param None
+ * @retval None
+ */
+static void TIM_Config(void)
+{
+ TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
+
+ /* TIM2 Periph clock enable */
+ RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
+
+ /* Time base configuration */
+ TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
+ TIM_TimeBaseStructure.TIM_Period = 0xFF;
+ TIM_TimeBaseStructure.TIM_Prescaler = 0x0;
+ TIM_TimeBaseStructure.TIM_ClockDivision = 0x0;
+ TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
+ TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
+
+ /* TIM2 TRGO selection: update event is selected as trigger for DAC */
+ TIM_SelectOutputTrigger(TIM2, TIM_TRGOSource_Update);
+
+ /* TIM2 enable counter */
+ TIM_Cmd(TIM2, ENABLE);
+}
+
+/**
+ * @brief Configures DAC channel 1 and channel 2
+ * @param None
+ * @retval None
+ */
+static void DAC_Config(void)
+{
+ DAC_InitTypeDef DAC_InitStructure;
+ GPIO_InitTypeDef GPIO_InitStructure;
+
+ /* DAC Periph clock enable ----------------------------------------*/
+ RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE);
+
+ /* SYSCFG Periph clock enable -------------------------------------*/
+ RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
+
+ /* Enable GPIOA Periph clock --------------------------------------*/
+ RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
+
+ /* Configure PA.04 (DAC1_OUT1), PA.05 (DAC1_OUT2) as analog */
+ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
+ GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
+ GPIO_Init(GPIOA, &GPIO_InitStructure);
+
+ /* Remap DAC1 Cahnnel1 DMA requests from DMA2 channel 3 to DMA1 channel 3 */
+ SYSCFG_DMAChannelRemapConfig(SYSCFG_DMARemap_TIM6DAC1Ch1, ENABLE);
+
+ /* DAC deinitialize */
+ DAC_DeInit(DAC1);
+
+ /* Fill DAC InitStructure */
+ DAC_InitStructure.DAC_Trigger = DAC_Trigger_T2_TRGO;
+ DAC_InitStructure.DAC_WaveGeneration = DAC_WaveGeneration_None;
+ DAC_InitStructure.DAC_LFSRUnmask_TriangleAmplitude = DAC_LFSRUnmask_Bits2_0;
+ DAC_InitStructure.DAC_Buffer_Switch = DAC_BufferSwitch_Enable;
+
+ /* DAC channel1 Configuration */
+ DAC_Init(DAC1, DAC_Channel_1, &DAC_InitStructure);
+
+ /* DAC channel2 Configuration */
+ DAC_Init(DAC1, DAC_Channel_2, &DAC_InitStructure);
+
+ /* Enable DAC Channel1: Once the DAC channel1 is enabled, PA.04 is
+ automatically connected to the DAC converter. */
+ DAC_Cmd(DAC1, DAC_Channel_1, ENABLE);
+
+ /* Enable DAC Channel2: Once the DAC channel2 is enabled, PA.05 is
+ automatically connected to the DAC converter. */
+ DAC_Cmd(DAC1, DAC_Channel_2, ENABLE);
+
+ /* Enable DMA for DAC Channel1 */
+ DAC_DMACmd(DAC1, DAC_Channel_1, ENABLE);
+}
+
+/**
+ * @brief Configures DMA1 channel3
+ * @param None
+ * @retval None
+ */
+static void DMA_Config(void)
+{
+ DMA_InitTypeDef DMA_InitStructure;
+
+ /* Enable DMA1 clock -------------------------------------------------------*/
+ RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
+
+ DMA_DeInit(DMA1_Channel3);
+ DMA_InitStructure.DMA_PeripheralBaseAddr = DAC_DHR12RD_Address;
+ DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)&DualSine12bit;
+ DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
+ DMA_InitStructure.DMA_BufferSize = 32;
+ DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
+ DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
+ DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
+ DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
+ DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
+ DMA_InitStructure.DMA_Priority = DMA_Priority_High;
+ DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
+ DMA_Init(DMA1_Channel3, &DMA_InitStructure);
+
+ /* Enable DMA1 Channel3 */
+ DMA_Cmd(DMA1_Channel3, ENABLE);
+}
+#ifdef USE_FULL_ASSERT
+
+/**
+ * @brief Reports the name of the source file and the source line number
+ * where the assert_param error has occurred.
+ * @param file: pointer to the source file name
+ * @param line: assert_param error line source number
+ * @retval None
+ */
+void assert_failed(uint8_t* file, uint32_t 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 STMicroelectronics *****END OF FILE****/