Hello everyone,
I am new to STM32 and to Keil. I would like to change the accelerometer resolution from 2G to 16G, but due to my inexperience, I don't know how. My teacher didn't help my and said that I need to figure it out by myself, but I really don't know what to do. Can somebody help me what to do a what to change?
Here is code that teacher provided:
I will be very thankful is someone can help me.
/* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body ****************************************************************************** * @attention * * <h2><center>© Copyright (c) 2020 STMicroelectronics. * All rights reserved.</center></h2> * * This software component is licensed by ST under BSD 3-Clause license, * the "License"; You may not use this file except in compliance with the * License. You may obtain a copy of the License at: * opensource.org/licenses/BSD-3-Clause * ****************************************************************************** */ /* USER CODE END Header */ /* Includes ------------------------------------------------------------------*/ #include "main.h" #include <stdbool.h> /* Private includes ----------------------------------------------------------*/ /* USER CODE BEGIN Includes */ /* USER CODE END Includes */ /* Private typedef -----------------------------------------------------------*/ /* USER CODE BEGIN PTD */ /* USER CODE END PTD */ /* Private define ------------------------------------------------------------*/ /* USER CODE BEGIN PD */ /* USER CODE END PD */ /* Private macro -------------------------------------------------------------*/ /* USER CODE BEGIN PM */ /* USER CODE END PM */ /* Private variables ---------------------------------------------------------*/ ADC_HandleTypeDef hadc1; SPI_HandleTypeDef hspi1; /* USER CODE BEGIN PV */ /* USER CODE END PV */ /* Private function prototypes -----------------------------------------------*/ void SystemClock_Config(void); static void MX_GPIO_Init(void); static void MX_SPI1_Init(void); static void MX_ADC1_Init(void); /* USER CODE BEGIN PFP */ //PROMENNE uint8_t adresaRegistru, data; uint8_t osaXH, osaXL, osaYH, osaYL, osaZH, osaZL; //Pro spodní a horni byty os int16_t osaX, osaY, osaZ; //Pro spojeni hornich a dolnich bytu bool bouchnuti; volatile float zrychleniX, zrychleniY, zrychleniZ; //Pro prepocet do g volatile uint32_t ADCValue=0; char kTiskuAD[10]= {0}; /* USER CODE END PFP */ /* Private user code ---------------------------------------------------------*/ /* USER CODE BEGIN 0 */ //Preruseni od AD prevodniku void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef* hadc1) { ADCValue = HAL_ADC_GetValue(hadc1); HAL_ADC_Start_IT(hadc1); } /* USER CODE END 0 */ /** * @brief The application entry point. * @retval int */ 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(); /* USER CODE BEGIN Init */ /* USER CODE END Init */ /* Configure the system clock */ SystemClock_Config(); /* USER CODE BEGIN SysInit */ /* USER CODE END SysInit */ /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_SPI1_Init(); MX_ADC1_Init(); /* USER CODE BEGIN 2 */ //-----------------------------NASTAVENI AKCELEROMETRU------------------------- //Defaultne je rozlišení +-2g //SPI Komunikace HAL_GPIO_WritePin(GPIOE, ACC_CS_Pin, GPIO_PIN_RESET); //Chip select adresaRegistru = 0x20; //CTRL_REG4 HAL_SPI_Transmit(&hspi1, &adresaRegistru, 1, 50); data = 0x37; //povol osy, 12,5Hz na vystupu HAL_SPI_Transmit(&hspi1, &data, 1, 50); HAL_GPIO_WritePin(GPIOE, ACC_CS_Pin, GPIO_PIN_SET); //Chip select HAL_Delay(20); //spustime prvni AD prevod HAL_ADC_Start_IT(&hadc1); /* USER CODE END 2 */ /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) { /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ //CTENI VYSSIHO BYTU X HAL_GPIO_WritePin(GPIOE, ACC_CS_Pin, GPIO_PIN_RESET); //Chip select adresaRegistru = 0x29+0x80; HAL_SPI_Transmit(&hspi1, &adresaRegistru, 1, 50); HAL_SPI_Receive(&hspi1, &osaXH, 1, 50); HAL_GPIO_WritePin(GPIOE, ACC_CS_Pin, GPIO_PIN_SET); //Chip select //CTENI NIZSIHO BYTU X HAL_GPIO_WritePin(GPIOE, ACC_CS_Pin, GPIO_PIN_RESET); //Chip select adresaRegistru = 0x28+0x80; HAL_SPI_Transmit(&hspi1, &adresaRegistru, 1, 50); HAL_SPI_Receive(&hspi1, &osaXL, 1, 50); HAL_GPIO_WritePin(GPIOE, ACC_CS_Pin, GPIO_PIN_SET); //Chip select //CTENI VYSSIHO BYTU Y HAL_GPIO_WritePin(GPIOE, ACC_CS_Pin, GPIO_PIN_RESET); adresaRegistru = 0x2B+0x80; HAL_SPI_Transmit(&hspi1, &adresaRegistru, 1, 50); HAL_SPI_Receive(&hspi1, &osaYH, 1, 50); HAL_GPIO_WritePin(GPIOE, ACC_CS_Pin, GPIO_PIN_SET); //CTENI NIZSIHO BYTU Y HAL_GPIO_WritePin(GPIOE, ACC_CS_Pin, GPIO_PIN_RESET); //Chip select adresaRegistru = 0x2A+0x80; HAL_SPI_Transmit(&hspi1, &adresaRegistru, 1, 50); HAL_SPI_Receive(&hspi1, &osaYL, 1, 50); HAL_GPIO_WritePin(GPIOE, ACC_CS_Pin, GPIO_PIN_SET); //Chip select //CTENI VYSSIHO BYTU Z HAL_GPIO_WritePin(GPIOE, ACC_CS_Pin, GPIO_PIN_RESET); adresaRegistru = 0x2D+0x80; HAL_SPI_Transmit(&hspi1, &adresaRegistru, 1, 50); HAL_SPI_Receive(&hspi1, &osaZH, 1, 50); HAL_GPIO_WritePin(GPIOE, ACC_CS_Pin, GPIO_PIN_SET); //CTENI NIZSIHO BYTU Z HAL_GPIO_WritePin(GPIOE, ACC_CS_Pin, GPIO_PIN_RESET); adresaRegistru = 0x2C+0x80; HAL_SPI_Transmit(&hspi1, &adresaRegistru, 1, 50); HAL_SPI_Receive(&hspi1, &osaZL, 1, 50); HAL_GPIO_WritePin(GPIOE, ACC_CS_Pin, GPIO_PIN_SET); //Do 16bitovyho cisla osaX = ((int16_t)osaXH <<8) | osaXL; osaY = ((int16_t)osaYH <<8) | osaYL; osaZ = ((int16_t)osaZH <<8) | osaZL; //PRepocitej to g zrychleniX = ((2.0/65535.0) * osaX)*2; zrychleniY = ((2.0/65535.0) * osaY)*2; zrychleniZ = ((2.0/65535.0) * osaZ)*2; if(zrychleniY <= -0.015 && zrychleniX >= 0.01){ bouchnuti = !bouchnuti; } if(bouchnuti == true){ HAL_GPIO_WritePin(GPIOD,GPIO_PIN_12,GPIO_PIN_SET); HAL_GPIO_WritePin(GPIOD,GPIO_PIN_13,GPIO_PIN_SET); HAL_GPIO_WritePin(GPIOD,GPIO_PIN_14,GPIO_PIN_SET); HAL_GPIO_WritePin(GPIOD,GPIO_PIN_15,GPIO_PIN_SET); } else{ HAL_GPIO_WritePin(GPIOD,GPIO_PIN_12,GPIO_PIN_RESET); HAL_GPIO_WritePin(GPIOD,GPIO_PIN_13,GPIO_PIN_RESET); HAL_GPIO_WritePin(GPIOD,GPIO_PIN_14,GPIO_PIN_RESET); HAL_GPIO_WritePin(GPIOD,GPIO_PIN_15,GPIO_PIN_RESET); } //vycteni hodnot z AD //while(HAL_ADC_PollForConversion(&hadc1, 1000000) != HAL_OK) ; //ADCValue = HAL_ADC_GetValue(&hadc1); //HAL_ADC_Start(&hadc1); } /* USER CODE END 3 */ } /** * @brief System Clock Configuration * @retval None */ void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct = {0}; RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; /** Configure the main internal regulator output voltage */ __HAL_RCC_PWR_CLK_ENABLE(); __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1); /** Initializes the RCC Oscillators according to the specified parameters * in the RCC_OscInitTypeDef structure. */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLM = 8; RCC_OscInitStruct.PLL.PLLN = 336; RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; RCC_OscInitStruct.PLL.PLLQ = 4; if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { Error_Handler(); } /** Initializes the CPU, AHB and APB buses 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_DIV4; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2; if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK) { Error_Handler(); } } /** * @brief ADC1 Initialization Function * @param None * @retval None */ static void MX_ADC1_Init(void) { /* USER CODE BEGIN ADC1_Init 0 */ /* USER CODE END ADC1_Init 0 */ ADC_ChannelConfTypeDef sConfig = {0}; /* USER CODE BEGIN ADC1_Init 1 */ /* USER CODE END ADC1_Init 1 */ /** Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion) */ hadc1.Instance = ADC1; hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV4; hadc1.Init.Resolution = ADC_RESOLUTION_12B; hadc1.Init.ScanConvMode = DISABLE; hadc1.Init.ContinuousConvMode = DISABLE; hadc1.Init.DiscontinuousConvMode = DISABLE; hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE; hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START; hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT; hadc1.Init.NbrOfConversion = 1; hadc1.Init.DMAContinuousRequests = DISABLE; hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV; if (HAL_ADC_Init(&hadc1) != HAL_OK) { Error_Handler(); } /** Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time. */ sConfig.Channel = ADC_CHANNEL_0; sConfig.Rank = 1; sConfig.SamplingTime = ADC_SAMPLETIME_3CYCLES; if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK) { Error_Handler(); } /* USER CODE BEGIN ADC1_Init 2 */ /* USER CODE END ADC1_Init 2 */ } /** * @brief SPI1 Initialization Function * @param None * @retval None */ static void MX_SPI1_Init(void) { /* USER CODE BEGIN SPI1_Init 0 */ /* USER CODE END SPI1_Init 0 */ /* USER CODE BEGIN SPI1_Init 1 */ /* USER CODE END SPI1_Init 1 */ /* SPI1 parameter configuration*/ hspi1.Instance = SPI1; hspi1.Init.Mode = SPI_MODE_MASTER; hspi1.Init.Direction = SPI_DIRECTION_2LINES; hspi1.Init.DataSize = SPI_DATASIZE_8BIT; hspi1.Init.CLKPolarity = SPI_POLARITY_LOW; hspi1.Init.CLKPhase = SPI_PHASE_1EDGE; hspi1.Init.NSS = SPI_NSS_SOFT; hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2; 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(); } /* USER CODE BEGIN SPI1_Init 2 */ /* USER CODE END SPI1_Init 2 */ } /** * @brief GPIO Initialization Function * @param None * @retval None */ static void MX_GPIO_Init(void) { GPIO_InitTypeDef GPIO_InitStruct = {0}; /* GPIO Ports Clock Enable */ __HAL_RCC_GPIOE_CLK_ENABLE(); __HAL_RCC_GPIOH_CLK_ENABLE(); __HAL_RCC_GPIOA_CLK_ENABLE(); __HAL_RCC_GPIOD_CLK_ENABLE(); /*Configure GPIO pin Output Level */ HAL_GPIO_WritePin(ACC_CS_GPIO_Port, ACC_CS_Pin, GPIO_PIN_RESET); /*Configure GPIO pin Output Level */ HAL_GPIO_WritePin(GPIOD, GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15, GPIO_PIN_RESET); /*Configure GPIO pin : ACC_CS_Pin */ GPIO_InitStruct.Pin = ACC_CS_Pin; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(ACC_CS_GPIO_Port, &GPIO_InitStruct); /*Configure GPIO pins : PD12 PD13 PD14 PD15 */ GPIO_InitStruct.Pin = GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOD, &GPIO_InitStruct); } /* USER CODE BEGIN 4 */ /* USER CODE END 4 */ /** * @brief This function is executed in case of error occurrence. * @retval None */ void Error_Handler(void) { /* USER CODE BEGIN Error_Handler_Debug */ /* User can add his own implementation to report the HAL error return state */ __disable_irq(); while (1) { } /* USER CODE END Error_Handler_Debug */ } #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 /* USE_FULL_ASSERT */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/