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/**
******************************************************************************
* @file STemWin/STemWin_Acceleration/Src/main.c
* @author MCD Application Team
* @brief This file provides main program functions
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "WM.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
uint8_t GUI_Initialized = 0;
TIM_HandleTypeDef TimHandle;
uint32_t uwPrescalerValue = 0;
/* Private function prototypes -----------------------------------------------*/
static void BSP_Config(void);
static void SystemClock_Config(void);
void BSP_Pointer_Update(void);
void BSP_Background(void);
extern void MainTask(void);
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/* STM32F4xx HAL library initialization:
- Configure the Flash prefetch, instruction and Data caches
- Configure the Systick to generate an interrupt each 1 msec
- Set NVIC Group Priority to 4
- Global MSP (MCU Support Package) initialization
*/
HAL_Init();
/* Initialize LCD and LEDs */
BSP_Config();
/* Configure the system clock to 180 MHz */
SystemClock_Config();
/***********************************************************/
/* Compute the prescaler value to have TIM3 counter clock equal to 10 KHz */
uwPrescalerValue = (uint32_t) ((SystemCoreClock /2) / 10000) - 1;
/* Set TIMx instance */
TimHandle.Instance = TIM3;
/* Initialize TIM3 peripheral as follows:
+ Period = 500 - 1
+ Prescaler = ((SystemCoreClock/2)/10000) - 1
+ ClockDivision = 0
+ Counter direction = Up
*/
TimHandle.Init.Period = 500 - 1;
TimHandle.Init.Prescaler = uwPrescalerValue;
TimHandle.Init.ClockDivision = 0;
TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
TimHandle.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if(HAL_TIM_Base_Init(&TimHandle) != HAL_OK)
{
while(1)
{
}
}
/*##-2- Start the TIM Base generation in interrupt mode ####################*/
/* Start Channel1 */
if(HAL_TIM_Base_Start_IT(&TimHandle) != HAL_OK)
{
while(1)
{
}
}
/***********************************************************/
/* Init the STemWin GUI Library */
GUI_Init();
GUI_Initialized = 1;
/* Enable multibuffering for memory device animation */
GUI_MEMDEV_MULTIBUF_Enable(1);
MainTask();
/* Infinite loop */
while (1)
{
}
}
/**
* @brief Period elapsed callback in non blocking mode
* @param htim: TIM handle
* @retval None
*/
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
BSP_Background();
}
/**
* @brief TIM MSP Initialization
* This function configures the hardware resources used in This application:
* - Peripheral's clock enable
* - Peripheral's GPIO Configuration
* @param htim: TIM handle pointer
* @retval None
*/
void HAL_TIM_Base_MspInit(TIM_HandleTypeDef *htim)
{
/*##-1- Enable peripherals and GPIO Clocks #################################*/
/* TIMx Peripheral clock enable */
__HAL_RCC_TIM3_CLK_ENABLE();
/*##-2- Configure the NVIC for TIMx ########################################*/
/* Set the TIMx priority */
HAL_NVIC_SetPriority(TIM3_IRQn, 0, 0xF);
/* Enable the TIMx global Interrupt */
HAL_NVIC_EnableIRQ(TIM3_IRQn);
}
/**
* @brief Initializes the STM32F429I-DISCO's LCD and LEDs resources.
* @param None
* @retval None
*/
static void BSP_Config(void)
{
/* Initialize STM32F429I-DISCO's LEDs */
BSP_LED_Init(LED3);
BSP_LED_Init(LED4);
/* Initializes the SDRAM device */
BSP_SDRAM_Init();
/* Initialize the Touch screen */
BSP_TS_Init(240, 320);
/* Enable the CRC Module */
__HAL_RCC_CRC_CLK_ENABLE();
}
/**
* @brief BSP_Background.
* @param None
* @retval None
*/
void BSP_Background(void)
{
BSP_LED_Toggle(LED3);
BSP_LED_Toggle(LED4);
/* Capture input event and update cursor */
if(GUI_Initialized == 1)
{
BSP_Pointer_Update();
}
}
/**
* @brief Provide the GUI with current state of the touch screen
* @param None
* @retval None
*/
void BSP_Pointer_Update(void)
{
GUI_PID_STATE TS_State;
static TS_StateTypeDef prev_state;
TS_StateTypeDef ts;
uint16_t xDiff, yDiff;
BSP_TS_GetState(&ts);
TS_State.Pressed = ts.TouchDetected;
xDiff = (prev_state.X > ts.X) ? (prev_state.X - ts.X) : (ts.X - prev_state.X);
yDiff = (prev_state.Y > ts.Y) ? (prev_state.Y - ts.Y) : (ts.Y - prev_state.Y);
if(ts.TouchDetected)
{
if((prev_state.TouchDetected != ts.TouchDetected )||
(xDiff > 3 )||
(yDiff > 3))
{
prev_state = ts;
TS_State.Layer = 0;
TS_State.x = ts.X;
TS_State.y = ts.Y;
GUI_TOUCH_StoreStateEx(&TS_State);
}
}
}
/**
* @brief System Clock Configuration
* The system Clock is configured as follow :
* System Clock source = PLL (HSE)
* SYSCLK(Hz) = 180000000
* HCLK(Hz) = 180000000
* AHB Prescaler = 1
* APB1 Prescaler = 4
* APB2 Prescaler = 2
* HSE Frequency(Hz) = 8000000
* PLL_M = 8
* PLL_N = 360
* PLL_P = 2
* PLL_Q = 7
* VDD(V) = 3.3
* Main regulator output voltage = Scale1 mode
* Flash Latency(WS) = 5
* @param None
* @retval None
*/
static void SystemClock_Config(void)
{
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitTypeDef RCC_OscInitStruct;
/* Enable Power Control clock */
__HAL_RCC_PWR_CLK_ENABLE();
/* The voltage scaling allows optimizing the power consumption when the device is
clocked below the maximum system frequency, to update the voltage scaling value
regarding system frequency refer to product datasheet. */
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/* Enable HSE Oscillator and activate PLL with HSE as source */
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 = 360;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 7;
HAL_RCC_OscConfig(&RCC_OscInitStruct);
/* Activate the Over-Drive mode */
HAL_PWREx_EnableOverDrive();
/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
clocks dividers */
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | 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;
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);
}
#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