mirror of
https://github.com/STMicroelectronics/STM32CubeF4.git
synced 2025-05-03 22:17:07 +08:00
186 lines
4.6 KiB
C
186 lines
4.6 KiB
C
/**
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******************************************************************************
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* @file BSP/Src/joystick.c
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* @author MCD Application Team
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* @brief This example code shows how to use the joystick feature in the
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* stm32412g_discovery driver
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2017 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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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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/** @addtogroup STM32F4xx_HAL_Examples
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* @{
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*/
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/** @addtogroup BSP
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* @{
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*/
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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#define HEADBAND_HEIGHT 64
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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static JOYState_TypeDef JoyState = JOY_NONE;
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/* Private function prototypes -----------------------------------------------*/
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static void Joystick_SetHint(void);
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/* Private functions ---------------------------------------------------------*/
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/**
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* @brief Joystick Gpio demo
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* @param None
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* @retval None
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*/
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void Joystick_demo (void)
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{
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uint8_t status = 0;
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Joystick_SetHint();
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status = BSP_JOY_Init(JOY_MODE_GPIO);
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if (status != HAL_OK)
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{
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BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
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BSP_LCD_SetTextColor(LCD_COLOR_RED);
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BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 95, (uint8_t *)"ERROR", CENTER_MODE);
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BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 80, (uint8_t *)"Joystick cannot be initialized", CENTER_MODE);
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}
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while (1)
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{
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if (status == HAL_OK)
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{
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/* Get the Joystick State */
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JoyState = BSP_JOY_GetState();
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Joystick_SetCursorPosition();
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}
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if(CheckForUserInput() > 0)
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{
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return;
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}
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HAL_Delay(6);
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}
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}
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/**
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* @brief Joystick cursor position
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* @param None
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* @retval None
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*/
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void Joystick_SetCursorPosition(void)
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{
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static uint16_t xPtr = 6;
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static uint16_t yPtr = HEADBAND_HEIGHT + 6;
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static uint16_t old_xPtr = 6;
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static uint16_t old_yPtr = HEADBAND_HEIGHT + 6;
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switch(JoyState)
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{
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case JOY_UP:
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if(yPtr > HEADBAND_HEIGHT + 6)
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{
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yPtr--;
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}
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break;
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case JOY_DOWN:
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if(yPtr < (BSP_LCD_GetYSize() - 6 - 11))
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{
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yPtr++;
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}
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break;
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case JOY_LEFT:
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if(xPtr > 6)
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{
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xPtr--;
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}
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break;
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case JOY_RIGHT:
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if(xPtr < (BSP_LCD_GetXSize() - 2 - 11))
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{
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xPtr++;
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}
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break;
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default:
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break;
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}
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BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
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BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
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if(JoyState == JOY_SEL)
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{
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BSP_LCD_SetTextColor(LCD_COLOR_RED);
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BSP_LCD_DisplayChar(xPtr, yPtr, 'X');
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}
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else if(JoyState == JOY_NONE)
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{
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BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
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BSP_LCD_DisplayChar(xPtr, yPtr, 'X');
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}
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else
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{
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BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
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BSP_LCD_DisplayChar(old_xPtr, old_yPtr, 'X');
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BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
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BSP_LCD_DisplayChar(xPtr, yPtr, 'X');
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old_xPtr = xPtr;
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old_yPtr = yPtr;
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}
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}
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/**
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* @brief Display joystick demo hint
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* @param None
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* @retval None
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*/
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static void Joystick_SetHint(void)
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{
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/* Clear the LCD */
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BSP_LCD_Clear(LCD_COLOR_WHITE);
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/* Set Joystick Demo description */
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BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
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BSP_LCD_FillRect(0, 0, BSP_LCD_GetXSize(), HEADBAND_HEIGHT);
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BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
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BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
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BSP_LCD_SetFont(&Font16);
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BSP_LCD_DisplayStringAt(0, 1, (uint8_t *)"Joystick", CENTER_MODE);
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BSP_LCD_SetFont(&Font12);
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BSP_LCD_DisplayStringAt(0, 20, (uint8_t *)"Use the joystick", CENTER_MODE);
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BSP_LCD_DisplayStringAt(0, 35, (uint8_t *)"to move the pointer", CENTER_MODE);
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BSP_LCD_DisplayStringAt(0, 50, (uint8_t *)"inside the rectangle", CENTER_MODE);
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/* Set the LCD Text Color */
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BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
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BSP_LCD_DrawRect(5, HEADBAND_HEIGHT + 5, BSP_LCD_GetXSize() - 10, BSP_LCD_GetYSize() - HEADBAND_HEIGHT - 10);
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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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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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