I am using a bluepill, and the final case statement is looping constantly from GO_TO_TOP -> COME_TO BOTTOM -> ROTATE_ACTION, the 'top' variable is being latched to '1' at the GO_TO_TOP case although it is not flagged high previously and has been cleared,
AND if there is a better way to code (for an embedded system on a special machine for a factory) please do tell.
all the custom functions are just HAL_GPIO_Write functions referencing certain pins.
top, bottom, user_buttton, are limit switches and push buttons by user respectively
*/ /* USER CODE END Header */ /* Includes ------------------------------------------------------------------*/ #include "main.h" /* Private includes ----------------------------------------------------------*/ /* USER CODE BEGIN Includes */ /* USER CODE END Includes */ /* Private typedef -----------------------------------------------------------*/ /* USER CODE BEGIN PTD */ typedef enum { HOME_FOR_TOP, COME_TO_BOTTOM, ROTATE_ACTION, GO_TO_TOP }system_state; system_state current_state = HOME_FOR_TOP; /* 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; TIM_HandleTypeDef htim2; /* USER CODE BEGIN PV */ /* USER CODE END PV */ /* Private function prototypes -----------------------------------------------*/ void SystemClock_Config(void); static void MX_GPIO_Init(void); static void MX_TIM2_Init(void); static void MX_ADC1_Init(void); /* USER CODE BEGIN PFP */ void elevationUpDirection(){ HAL_GPIO_WritePin(GPIOA, GPIO_PIN_8, GPIO_PIN_RESET);// DIRECTION PIN ELEVATION MOTOR UP HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_SET);// DIRECTION PIN ELEVATION MOTOR UP } void elevationDownDirection(){ HAL_GPIO_WritePin(GPIOA, GPIO_PIN_8, GPIO_PIN_SET);// DIRECTION PIN ELEVATION MOTOR DOWN HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_RESET);// DIRECTION PIN ELEVATION MOTOR DOWN } void elevationDisable(){ HAL_GPIO_WritePin(GPIOA, GPIO_PIN_8, GPIO_PIN_RESET);// DIRECTION PIN ELEVATION MOTOR DOWN HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_RESET);// DIRECTION PIN ELEVATION MOTOR DOWN } void rotationCW(){ HAL_GPIO_WritePin(GPIOA, GPIO_PIN_10, GPIO_PIN_SET);// DIRECTION PIN ELEVATION MOTOR } void rotationCCW(){ HAL_GPIO_WritePin(GPIOA, GPIO_PIN_10, GPIO_PIN_RESET);// DIRECTION PIN ELEVATION MOTOR } void rotationEnable(){ HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);// ENABLE PIN ELEVATION MOTOR } void rotationDisable(){ HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);// DISABLE PIN ELEVATION MOTOR } void rotorStartRunning(){ HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_1);// FOR ROTOR MOTOR 1 HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_2);// FOR ROTOR MOTOR 2 HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_3);// FOR ROTOR MOTOR 3 HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_4);// FOR ROTOR MOTOR 4 } void rotorStopRunning(){ HAL_TIM_PWM_Stop(&htim2, TIM_CHANNEL_1);// FOR ROTOR MOTOR 1 HAL_TIM_PWM_Stop(&htim2, TIM_CHANNEL_2);// FOR ROTOR MOTOR 2 HAL_TIM_PWM_Stop(&htim2, TIM_CHANNEL_3);// FOR ROTOR MOTOR 3 HAL_TIM_PWM_Stop(&htim2, TIM_CHANNEL_4);// FOR ROTOR MOTOR 4 } void timeElevationMotor(uint16_t time){ HAL_Delay(time); } void timeRotationMotor(uint16_t time){ HAL_Delay(time); } //////////////////////////MOTOR RELATED FUNCTIONS ENDS///////////////////////////////////////////////////////////// void pumpEnable(){ HAL_GPIO_WritePin(GPIOB, GPIO_PIN_6, GPIO_PIN_RESET);// PUMP RELAY PIN } void pumpDisable(){ HAL_GPIO_WritePin(GPIOB, GPIO_PIN_6, GPIO_PIN_SET);// PUMP RELAY PIN } ////////////////////////////////////PUMP FUNCTIONS///////////////////////////////////////////////////////////////// void valveEnable(){ HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5, GPIO_PIN_RESET);// VALVE RELAY PIN } void valveDisable(){ HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5, GPIO_PIN_SET);// VALVE RELAY PIN } /////////////////////////////////VALVE FUNCTIONS///////////////////////////////////////////////////////////////// void lockEnable(){ HAL_GPIO_WritePin(GPIOB, GPIO_PIN_4, GPIO_PIN_RESET);// LOCK RELAY PIN } void lockDisable(){ HAL_GPIO_WritePin(GPIOB, GPIO_PIN_4, GPIO_PIN_SET);/// LOCK RELAY PIN } //////////////////////////////LOCK FUNCTIONS///////////////////////////////////////////////////////////////////// /* USER CODE END PFP */ /* Private user code ---------------------------------------------------------*/ /* USER CODE BEGIN 0 */ uint16_t user_button_pressed = 0; uint16_t do_once = 0; uint16_t check_button = 0; uint16_t top = 0; uint16_t bottom = 0; ///////////////////////// THESE ARE BUTTONS AND SWITCHES////////////////////////// void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) { if (GPIO_Pin == GPIO_PIN_13) { user_button_pressed = 1; } if (GPIO_Pin == GPIO_PIN_15) { bottom = 1; } if (GPIO_Pin == GPIO_PIN_14) { top = 1; } } /* 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_TIM2_Init(); MX_ADC1_Init(); /* USER CODE BEGIN 2 */ HAL_TIM_PWM_Stop(&htim2, TIM_CHANNEL_1);// FOR ROTOR MOTOR 1 HAL_TIM_PWM_Stop(&htim2, TIM_CHANNEL_2);// FOR ROTOR MOTOR 2 HAL_TIM_PWM_Stop(&htim2, TIM_CHANNEL_3);// FOR ROTOR MOTOR 3 HAL_TIM_PWM_Stop(&htim2, TIM_CHANNEL_4);// FOR ROTOR MOTOR 4 rotationDisable(); pumpDisable(); valveDisable(); lockDisable(); /* USER CODE END 2 */ /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) { if (top == 1) HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, GPIO_PIN_RESET); // LED ON else HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, GPIO_PIN_SET); // LED OFF if (bottom == 1) HAL_GPIO_WritePin(GPIOB, GPIO_PIN_11, GPIO_PIN_RESET); // LED ON else HAL_GPIO_WritePin(GPIOB, GPIO_PIN_11, GPIO_PIN_SET); // LED OFF switch(current_state){ case HOME_FOR_TOP: if(top){ if(do_once ==0){ elevationDisable(); lockEnable(); do_once = 1; top = 0; bottom = 0; user_button_pressed = 0; current_state = COME_TO_BOTTOM; } } else { elevationUpDirection(); } break; case COME_TO_BOTTOM: if(user_button_pressed == 1){ elevationDownDirection(); top=0; timeElevationMotor(3000); elevationDisable(); current_state = ROTATE_ACTION; } break; case ROTATE_ACTION: if(bottom){ pumpEnable(); valveEnable(); rotationEnable(); rotorStartRunning(); rotationCW(); timeRotationMotor(5000); rotorStopRunning(); rotationDisable(); valveDisable(); pumpDisable(); top = 0; current_state = GO_TO_TOP; } break; case GO_TO_TOP: elevationUpDirection(); if(top){ HAL_Delay(1000); elevationDisable(); bottom = 0; user_button_pressed = 0; current_state = COME_TO_BOTTOM; } } /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ } /* USER CODE END 3 */ } /** * @brief System Clock Configuration * @retval None */ void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct = {0}; RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; RCC_PeriphCLKInitTypeDef PeriphClkInit = {0}; /** Initializes the RCC Oscillators according to the specified parameters * in the RCC_OscInitTypeDef structure. */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI; RCC_OscInitStruct.HSIState = RCC_HSI_ON; RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI_DIV2; RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL2; 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_DIV1; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK) { Error_Handler(); } PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC; PeriphClkInit.AdcClockSelection = RCC_ADCPCLK2_DIV2; if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != 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 */ /** Common config */ hadc1.Instance = ADC1; hadc1.Init.ScanConvMode = ADC_SCAN_DISABLE; hadc1.Init.ContinuousConvMode = DISABLE; 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_8; sConfig.Rank = ADC_REGULAR_RANK_1; sConfig.SamplingTime = ADC_SAMPLETIME_1CYCLE_5; if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK) { Error_Handler(); } /* USER CODE BEGIN ADC1_Init 2 */ /* USER CODE END ADC1_Init 2 */ } /** * @brief TIM2 Initialization Function * @param None * @retval None */ static void MX_TIM2_Init(void) { /* USER CODE BEGIN TIM2_Init 0 */ /* USER CODE END TIM2_Init 0 */ TIM_MasterConfigTypeDef sMasterConfig = {0}; TIM_OC_InitTypeDef sConfigOC = {0}; /* USER CODE BEGIN TIM2_Init 1 */ /* USER CODE END TIM2_Init 1 */ htim2.Instance = TIM2; htim2.Init.Prescaler = 0; htim2.Init.CounterMode = TIM_COUNTERMODE_UP; htim2.Init.Period = 65535; htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1; htim2.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE; if (HAL_TIM_PWM_Init(&htim2) != HAL_OK) { Error_Handler(); } sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET; sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE; if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK) { Error_Handler(); } sConfigOC.OCMode = TIM_OCMODE_PWM1; sConfigOC.Pulse = 0; sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH; sConfigOC.OCFastMode = TIM_OCFAST_DISABLE; if (HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_1) != HAL_OK) { Error_Handler(); } if (HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_2) != HAL_OK) { Error_Handler(); } if (HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_3) != HAL_OK) { Error_Handler(); } if (HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_4) != HAL_OK) { Error_Handler(); } /* USER CODE BEGIN TIM2_Init 2 */ /* USER CODE END TIM2_Init 2 */ HAL_TIM_MspPostInit(&htim2); } /** * @brief GPIO Initialization Function * @param None * @retval None */ static void MX_GPIO_Init(void) { GPIO_InitTypeDef GPIO_InitStruct = {0}; /* USER CODE BEGIN MX_GPIO_Init_1 */ /* USER CODE END MX_GPIO_Init_1 */ /* GPIO Ports Clock Enable */ __HAL_RCC_GPIOC_CLK_ENABLE(); __HAL_RCC_GPIOD_CLK_ENABLE(); __HAL_RCC_GPIOA_CLK_ENABLE(); __HAL_RCC_GPIOB_CLK_ENABLE(); /*Configure GPIO pin Output Level */ HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, GPIO_PIN_RESET); /*Configure GPIO pin Output Level */ HAL_GPIO_WritePin(GPIOA, ROTOR_ENABLE_Pin|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7 |ELEVATION_DIR__Pin|ELEVATION_DIR_A9_Pin, GPIO_PIN_RESET); /*Configure GPIO pin Output Level */ HAL_GPIO_WritePin(GPIOB, Blue_LED_Pin|Green_LED_Pin|Red_LED_Pin|LOCK_Pin |VALVE_Pin|PUMP_Pin|ACTUATOR_PROVISION_Pin, GPIO_PIN_RESET); /*Configure GPIO pin : PC13 */ GPIO_InitStruct.Pin = GPIO_PIN_13; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOC, &GPIO_InitStruct); /*Configure GPIO pins : ROTOR_ENABLE_Pin PA5 PA6 PA7 ELEVATION_DIR__Pin ELEVATION_DIR_A9_Pin */ GPIO_InitStruct.Pin = ROTOR_ENABLE_Pin|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7 |ELEVATION_DIR__Pin|ELEVATION_DIR_A9_Pin; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); /*Configure GPIO pins : Blue_LED_Pin Green_LED_Pin Red_LED_Pin LOCK_Pin VALVE_Pin PUMP_Pin ACTUATOR_PROVISION_Pin */ GPIO_InitStruct.Pin = Blue_LED_Pin|Green_LED_Pin|Red_LED_Pin|LOCK_Pin |VALVE_Pin|PUMP_Pin|ACTUATOR_PROVISION_Pin; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); /*Configure GPIO pins : user_push_button_Pin TOP_LIMIT_SWITCH_Pin BOTTOM_LIMIT_SWITCH_Pin CHECK_BUTTON_Pin */ GPIO_InitStruct.Pin = user_push_button_Pin|TOP_LIMIT_SWITCH_Pin|BOTTOM_LIMIT_SWITCH_Pin|CHECK_BUTTON_Pin; GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING; GPIO_InitStruct.Pull = GPIO_PULLUP; HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); /* EXTI interrupt init*/ HAL_NVIC_SetPriority(EXTI3_IRQn, 0, 0); HAL_NVIC_EnableIRQ(EXTI3_IRQn); HAL_NVIC_SetPriority(EXTI15_10_IRQn, 0, 0); HAL_NVIC_EnableIRQ(EXTI15_10_IRQn); /* USER CODE BEGIN MX_GPIO_Init_2 */ /* USER CODE END MX_GPIO_Init_2 */ } /* 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 */ ```
I'm having trouble getting switch cases to work as intended... what is the intended operation? ... please update your question with a description ... edit the post, do not write a comment \$\endgroup\$