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January 7, 2017 10:54
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/** | |
****************************************************************************** | |
* File Name : main.c | |
* Description : Main program body | |
****************************************************************************** | |
* | |
* COPYRIGHT(c) 2016 STMicroelectronics | |
* | |
* Redistribution and use in source and binary forms, with or without modification, | |
* are permitted provided that the following conditions are met: | |
* 1. Redistributions of source code must retain the above copyright notice, | |
* this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright notice, | |
* this list of conditions and the following disclaimer in the documentation | |
* and/or other materials provided with the distribution. | |
* 3. Neither the name of STMicroelectronics nor the names of its contributors | |
* may be used to endorse or promote products derived from this software | |
* without specific prior written permission. | |
* | |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | |
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
* | |
****************************************************************************** | |
*/ | |
/* Includes ------------------------------------------------------------------*/ | |
#include "main.h" | |
#include "stm32f1xx_hal.h" | |
/* USER CODE BEGIN Includes */ | |
#include "math.h" | |
/* USER CODE END Includes */ | |
/* Private variables ---------------------------------------------------------*/ | |
ADC_HandleTypeDef hadc1; | |
DMA_HandleTypeDef hdma_adc1; | |
SPI_HandleTypeDef hspi1; | |
TIM_HandleTypeDef htim4; | |
/* USER CODE BEGIN PV */ | |
/* Private variables ---------------------------------------------------------*/ | |
/* USER CODE END PV */ | |
/* Private function prototypes -----------------------------------------------*/ | |
void SystemClock_Config(void); | |
void Error_Handler(void); | |
static void MX_GPIO_Init(void); | |
static void MX_DMA_Init(void); | |
static void MX_SPI1_Init(void); | |
static void MX_ADC1_Init(void); | |
static void MX_TIM4_Init(void); | |
/* USER CODE BEGIN PFP */ | |
/* Private function prototypes -----------------------------------------------*/ | |
uint16_t RAW_adc = 0; | |
float adc = 0; | |
/* USER CODE END PFP */ | |
/* USER CODE BEGIN 0 */ | |
void Write_MCP4822_A(uint16_t value){ | |
value |= 0x3000; | |
HAL_GPIO_WritePin(CS_GPIO_Port, CS_Pin, GPIO_PIN_RESET); | |
HAL_SPI_Transmit(&hspi1, (uint8_t*)&value, 1, 1); | |
HAL_GPIO_WritePin(CS_GPIO_Port, CS_Pin, GPIO_PIN_SET); | |
} | |
float Low_pass(void){ | |
return adc = adc + 0.001f*((float)RAW_adc/4095.0f - adc); | |
} | |
/* USER CODE END 0 */ | |
int main(void) | |
{ | |
/* USER CODE BEGIN 1 */ | |
/* USER CODE END 1 */ | |
/* MCU Configuration----------------------------------------------------------*/ | |
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */ | |
HAL_Init(); | |
/* Configure the system clock */ | |
SystemClock_Config(); | |
/* Initialize all configured peripherals */ | |
MX_GPIO_Init(); | |
MX_DMA_Init(); | |
MX_SPI1_Init(); | |
MX_ADC1_Init(); | |
MX_TIM4_Init(); | |
/* USER CODE BEGIN 2 */ | |
HAL_Delay(200); | |
HAL_GPIO_WritePin(CS_GPIO_Port, CS_Pin, GPIO_PIN_SET); | |
HAL_ADC_Start_DMA(&hadc1, (uint32_t*)&RAW_adc, 1); | |
//HAL_TIM_Base_Start(&htim4); | |
//HAL_GPIO_TogglePin(LED_GPIO_Port, LED_Pin); | |
float x = 200; | |
int i = 1; | |
float value = 0; | |
float PI = 22/7; | |
/* USER CODE END 2 */ | |
/* Infinite loop */ | |
/* USER CODE BEGIN WHILE */ | |
while (1) | |
{ | |
/* USER CODE END WHILE */ | |
/* USER CODE BEGIN 3 */ | |
x += 10.0f * Low_pass(); | |
value =2000 + 1000*sinf(x/180.0f*PI); | |
Write_MCP4822_A(value); | |
if(x >= 360*10000) x = 0; | |
// HAL_Delay(1); | |
} | |
/* USER CODE END 3 */ | |
} | |
/** System Clock Configuration | |
*/ | |
void SystemClock_Config(void) | |
{ | |
RCC_OscInitTypeDef RCC_OscInitStruct; | |
RCC_ClkInitTypeDef RCC_ClkInitStruct; | |
RCC_PeriphCLKInitTypeDef PeriphClkInit; | |
/**Initializes the CPU, AHB and APB busses clocks | |
*/ | |
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; | |
RCC_OscInitStruct.HSEState = RCC_HSE_ON; | |
RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1; | |
RCC_OscInitStruct.HSIState = RCC_HSI_ON; | |
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; | |
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; | |
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9; | |
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) | |
{ | |
Error_Handler(); | |
} | |
/**Initializes the CPU, AHB and APB busses clocks | |
*/ | |
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK | |
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2; | |
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; | |
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; | |
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2; | |
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; | |
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK) | |
{ | |
Error_Handler(); | |
} | |
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC; | |
PeriphClkInit.AdcClockSelection = RCC_ADCPCLK2_DIV6; | |
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) | |
{ | |
Error_Handler(); | |
} | |
/**Configure the Systick interrupt time | |
*/ | |
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000); | |
/**Configure the Systick | |
*/ | |
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK); | |
/* SysTick_IRQn interrupt configuration */ | |
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0); | |
} | |
/* ADC1 init function */ | |
static void MX_ADC1_Init(void) | |
{ | |
ADC_ChannelConfTypeDef sConfig; | |
/**Common config | |
*/ | |
hadc1.Instance = ADC1; | |
hadc1.Init.ScanConvMode = ADC_SCAN_DISABLE; | |
hadc1.Init.ContinuousConvMode = ENABLE; | |
hadc1.Init.DiscontinuousConvMode = DISABLE; | |
hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START; | |
hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT; | |
hadc1.Init.NbrOfConversion = 1; | |
if (HAL_ADC_Init(&hadc1) != HAL_OK) | |
{ | |
Error_Handler(); | |
} | |
/**Configure Regular Channel | |
*/ | |
sConfig.Channel = ADC_CHANNEL_0; | |
sConfig.Rank = 1; | |
sConfig.SamplingTime = ADC_SAMPLETIME_71CYCLES_5; | |
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK) | |
{ | |
Error_Handler(); | |
} | |
} | |
/* SPI1 init function */ | |
static void MX_SPI1_Init(void) | |
{ | |
hspi1.Instance = SPI1; | |
hspi1.Init.Mode = SPI_MODE_MASTER; | |
hspi1.Init.Direction = SPI_DIRECTION_2LINES; | |
hspi1.Init.DataSize = SPI_DATASIZE_16BIT; | |
hspi1.Init.CLKPolarity = SPI_POLARITY_LOW; | |
hspi1.Init.CLKPhase = SPI_PHASE_1EDGE; | |
hspi1.Init.NSS = SPI_NSS_SOFT; | |
hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_4; | |
hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB; | |
hspi1.Init.TIMode = SPI_TIMODE_DISABLE; | |
hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE; | |
hspi1.Init.CRCPolynomial = 10; | |
if (HAL_SPI_Init(&hspi1) != HAL_OK) | |
{ | |
Error_Handler(); | |
} | |
} | |
/* TIM4 init function */ | |
static void MX_TIM4_Init(void) | |
{ | |
TIM_ClockConfigTypeDef sClockSourceConfig; | |
TIM_MasterConfigTypeDef sMasterConfig; | |
htim4.Instance = TIM4; | |
htim4.Init.Prescaler = 1439; | |
htim4.Init.CounterMode = TIM_COUNTERMODE_UP; | |
htim4.Init.Period = 49999; | |
htim4.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1; | |
if (HAL_TIM_Base_Init(&htim4) != HAL_OK) | |
{ | |
Error_Handler(); | |
} | |
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL; | |
if (HAL_TIM_ConfigClockSource(&htim4, &sClockSourceConfig) != HAL_OK) | |
{ | |
Error_Handler(); | |
} | |
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET; | |
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE; | |
if (HAL_TIMEx_MasterConfigSynchronization(&htim4, &sMasterConfig) != HAL_OK) | |
{ | |
Error_Handler(); | |
} | |
} | |
/** | |
* Enable DMA controller clock | |
*/ | |
static void MX_DMA_Init(void) | |
{ | |
/* DMA controller clock enable */ | |
__HAL_RCC_DMA1_CLK_ENABLE(); | |
/* DMA interrupt init */ | |
/* DMA1_Channel1_IRQn interrupt configuration */ | |
HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 0, 0); | |
HAL_NVIC_EnableIRQ(DMA1_Channel1_IRQn); | |
} | |
/** Configure pins as | |
* Analog | |
* Input | |
* Output | |
* EVENT_OUT | |
* EXTI | |
*/ | |
static void MX_GPIO_Init(void) | |
{ | |
GPIO_InitTypeDef GPIO_InitStruct; | |
/* GPIO Ports Clock Enable */ | |
__HAL_RCC_GPIOD_CLK_ENABLE(); | |
__HAL_RCC_GPIOA_CLK_ENABLE(); | |
__HAL_RCC_GPIOB_CLK_ENABLE(); | |
/*Configure GPIO pin Output Level */ | |
HAL_GPIO_WritePin(CS_GPIO_Port, CS_Pin, GPIO_PIN_RESET); | |
/*Configure GPIO pin Output Level */ | |
HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_RESET); | |
/*Configure GPIO pin : CS_Pin */ | |
GPIO_InitStruct.Pin = CS_Pin; | |
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; | |
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH; | |
HAL_GPIO_Init(CS_GPIO_Port, &GPIO_InitStruct); | |
/*Configure GPIO pin : LED_Pin */ | |
GPIO_InitStruct.Pin = LED_Pin; | |
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; | |
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; | |
HAL_GPIO_Init(LED_GPIO_Port, &GPIO_InitStruct); | |
} | |
/* USER CODE BEGIN 4 */ | |
/* USER CODE END 4 */ | |
/** | |
* @brief This function is executed in case of error occurrence. | |
* @param None | |
* @retval None | |
*/ | |
void Error_Handler(void) | |
{ | |
/* USER CODE BEGIN Error_Handler */ | |
/* User can add his own implementation to report the HAL error return state */ | |
while(1) | |
{ | |
} | |
/* USER CODE END Error_Handler */ | |
} | |
#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 CODE BEGIN 6 */ | |
/* 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) */ | |
/* USER CODE END 6 */ | |
} | |
#endif | |
/** | |
* @} | |
*/ | |
/** | |
* @} | |
*/ | |
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
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