328 lines
9.1 KiB
C
Executable File
328 lines
9.1 KiB
C
Executable File
/**
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******************************************************************************
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* File Name : main.c
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* Description : Main program body
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******************************************************************************
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*
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* COPYRIGHT(c) 2017 STMicroelectronics
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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#include "stm32f4xx_hal.h"
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/* USER CODE BEGIN Includes */
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#include "ssd1306.h"
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#include "fonts.h"
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/* USER CODE END Includes */
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/* Private variables ---------------------------------------------------------*/
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ADC_HandleTypeDef hadc1;
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I2C_HandleTypeDef hi2c1;
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UART_HandleTypeDef huart1;
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/* USER CODE BEGIN PV */
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/* Private variables ---------------------------------------------------------*/
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uint32_t adcResult = 0;
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char buffer[20];
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/* USER CODE END PV */
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/* Private function prototypes -----------------------------------------------*/
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void SystemClock_Config(void);
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void Error_Handler(void);
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static void MX_GPIO_Init(void);
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static void MX_ADC1_Init(void);
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static void MX_I2C1_Init(void);
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static void MX_USART1_UART_Init(void);
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/* USER CODE BEGIN PFP */
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/* Private function prototypes -----------------------------------------------*/
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/* USER CODE END PFP */
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/* USER CODE BEGIN 0 */
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/* USER CODE END 0 */
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int main(void)
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{
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/* USER CODE BEGIN 1 */
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int x = 0;
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int y;
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int old_x, old_y;
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/* USER CODE END 1 */
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/* MCU Configuration----------------------------------------------------------*/
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/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
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HAL_Init();
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/* Configure the system clock */
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SystemClock_Config();
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/* Initialize all configured peripherals */
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MX_GPIO_Init();
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MX_ADC1_Init();
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MX_I2C1_Init();
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MX_USART1_UART_Init();
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/* USER CODE BEGIN 2 */
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ssd1306_Init();
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/* USER CODE END 2 */
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/* Infinite loop */
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/* USER CODE BEGIN WHILE */
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while (1)
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{
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HAL_ADC_Start(&hadc1);
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//HAL_ADC_PollForConversion(&hadc1, 100);
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//HAL_ADC_PollForConversion(&hadc1, 10);
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HAL_ADC_PollForConversion(&hadc1, 1);
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adcResult = HAL_ADC_GetValue(&hadc1);
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HAL_ADC_Stop(&hadc1);
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/* USER CODE END WHILE */
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/* USER CODE BEGIN 3 */
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//int y = adcResult / 64;
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y = adcResult;
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drawLine(old_x, old_y, x, y);
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//ssd1306_DrawPixel(x, y, White);
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old_x = x;
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old_y = y;
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//ssd1306_SetCursor(0, 53);
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//sprintf(buffer, "%0u", adcResult);
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//ssd1306_WriteString(buffer, Font_7x10, White);
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ssd1306_UpdateScreen();
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x++;
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if (x >= 127) {
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ssd1306_Fill(Black);
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x = 0;
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old_x = 0;
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}
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}
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/* USER CODE END 3 */
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}
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/** System Clock Configuration
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*/
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void SystemClock_Config(void)
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{
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RCC_OscInitTypeDef RCC_OscInitStruct;
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RCC_ClkInitTypeDef RCC_ClkInitStruct;
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/**Configure the main internal regulator output voltage
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*/
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__HAL_RCC_PWR_CLK_ENABLE();
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__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
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/**Initializes the CPU, AHB and APB busses clocks
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*/
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
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RCC_OscInitStruct.HSIState = RCC_HSI_ON;
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RCC_OscInitStruct.HSICalibrationValue = 16;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
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if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
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{
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Error_Handler();
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}
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/**Initializes the CPU, AHB and APB busses clocks
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*/
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RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
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|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
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if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
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{
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Error_Handler();
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}
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/**Configure the Systick interrupt time
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*/
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HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
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/**Configure the Systick
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*/
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HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
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/* SysTick_IRQn interrupt configuration */
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HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
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}
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/* ADC1 init function */
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static void MX_ADC1_Init(void)
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{
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ADC_ChannelConfTypeDef sConfig;
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/**Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)
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*/
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hadc1.Instance = ADC1;
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hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV2;
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hadc1.Init.Resolution = ADC_RESOLUTION_6B;
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hadc1.Init.ScanConvMode = DISABLE;
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hadc1.Init.ContinuousConvMode = DISABLE;
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hadc1.Init.DiscontinuousConvMode = DISABLE;
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hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
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hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
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hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
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hadc1.Init.NbrOfConversion = 1;
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hadc1.Init.DMAContinuousRequests = DISABLE;
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hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
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if (HAL_ADC_Init(&hadc1) != HAL_OK)
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{
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Error_Handler();
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}
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/**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
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*/
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sConfig.Channel = ADC_CHANNEL_0;
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sConfig.Rank = 1;
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sConfig.SamplingTime = ADC_SAMPLETIME_3CYCLES;
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if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
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{
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Error_Handler();
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}
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}
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/* I2C1 init function */
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static void MX_I2C1_Init(void)
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{
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hi2c1.Instance = I2C1;
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hi2c1.Init.ClockSpeed = 400000;
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hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_16_9;
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hi2c1.Init.OwnAddress1 = 0;
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hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
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hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
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hi2c1.Init.OwnAddress2 = 0;
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hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
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hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
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if (HAL_I2C_Init(&hi2c1) != HAL_OK)
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{
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Error_Handler();
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}
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}
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/* USART1 init function */
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static void MX_USART1_UART_Init(void)
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{
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huart1.Instance = USART1;
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huart1.Init.BaudRate = 115200;
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huart1.Init.WordLength = UART_WORDLENGTH_8B;
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huart1.Init.StopBits = UART_STOPBITS_1;
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huart1.Init.Parity = UART_PARITY_NONE;
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huart1.Init.Mode = UART_MODE_TX_RX;
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huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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huart1.Init.OverSampling = UART_OVERSAMPLING_16;
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if (HAL_UART_Init(&huart1) != HAL_OK)
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{
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Error_Handler();
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}
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}
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/** Pinout Configuration
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*/
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static void MX_GPIO_Init(void)
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{
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/* GPIO Ports Clock Enable */
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__HAL_RCC_GPIOA_CLK_ENABLE();
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__HAL_RCC_GPIOB_CLK_ENABLE();
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}
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/* USER CODE BEGIN 4 */
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/* USER CODE END 4 */
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/**
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* @brief This function is executed in case of error occurrence.
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* @param None
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* @retval None
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*/
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void Error_Handler(void)
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{
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/* USER CODE BEGIN Error_Handler */
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/* User can add his own implementation to report the HAL error return state */
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while(1)
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{
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}
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/* USER CODE END Error_Handler */
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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void assert_failed(uint8_t* file, uint32_t line)
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{
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/* USER CODE BEGIN 6 */
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/* User can add his own implementation to report the file name and line number,
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ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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/* USER CODE END 6 */
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}
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#endif
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/**
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* @}
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*/
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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