| /** | |
| ****************************************************************************** | |
| * @file BSP/Src/joystick.c | |
| * @author MCD Application Team | |
| * @version V1.3.0 | |
| * @date 17-February-2017 | |
| * @brief This example code shows how to use the joystick feature in the | |
| * stm324xg_eval driver | |
| ****************************************************************************** | |
| * @attention | |
| * | |
| * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2>> | |
| * | |
| * Redistribution and use in source and binary forms, with or without modification, | |
| * are permitted provided that the following conditions are met: | |
| * 1. Redistributions of source code must retain the above copyright notice, | |
| * this list of conditions and the following disclaimer. | |
| * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| * this list of conditions and the following disclaimer in the documentation | |
| * and/or other materials provided with the distribution. | |
| * 3. Neither the name of STMicroelectronics nor the names of its contributors | |
| * may be used to endorse or promote products derived from this software | |
| * without specific prior written permission. | |
| * | |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| * | |
| ****************************************************************************** | |
| */ | |
| /* Includes ------------------------------------------------------------------*/ | |
| /** @addtogroup STM32F4xx_HAL_Examples | |
| * @{ | |
| */ | |
| /** @addtogroup BSP | |
| * @{ | |
| */ | |
| /* Private typedef -----------------------------------------------------------*/ | |
| /* Private define ------------------------------------------------------------*/ | |
| /* Private macro -------------------------------------------------------------*/ | |
| /* Private variables ---------------------------------------------------------*/ | |
| static JOYState_TypeDef JoyState = JOY_NONE; | |
| /* Private function prototypes -----------------------------------------------*/ | |
| static void Joystick_SetHint(void); | |
| /* Private functions ---------------------------------------------------------*/ | |
| /** | |
| * @brief Joystick demo | |
| * @param None | |
| * @retval None | |
| */ | |
| void Joystick_demo(void) | |
| { | |
| static uint16_t xPtr = 12; | |
| static uint16_t yPtr = 92; | |
| static uint16_t old_xPtr = 12; | |
| static uint16_t old_yPtr = 92; | |
| uint8_t status = 0; | |
| Joystick_SetHint(); | |
| status = BSP_JOY_Init(JOY_MODE_GPIO); | |
| if (status != IO_OK) | |
| { | |
| BSP_LCD_SetBackColor(LCD_COLOR_WHITE); | |
| BSP_LCD_SetTextColor(LCD_COLOR_RED); | |
| BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 95, (uint8_t *)"ERROR", CENTER_MODE); | |
| BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 80, (uint8_t *)"Joystick cannot be initialized", CENTER_MODE); | |
| } | |
| while (1) | |
| { | |
| if (status == IO_OK) | |
| { | |
| /* Get the Joystick State */ | |
| JoyState = BSP_JOY_GetState(); | |
| switch(JoyState) | |
| { | |
| case JOY_UP: | |
| if(yPtr > 92) | |
| { | |
| yPtr--; | |
| } | |
| break; | |
| case JOY_DOWN: | |
| if(yPtr < (BSP_LCD_GetYSize() - 12 - 11)) | |
| { | |
| yPtr++; | |
| } | |
| break; | |
| case JOY_LEFT: | |
| if(xPtr > 12) | |
| { | |
| xPtr--; | |
| } | |
| break; | |
| case JOY_RIGHT: | |
| if(xPtr < (BSP_LCD_GetXSize() - 8 - 11)) | |
| { | |
| xPtr++; | |
| } | |
| break; | |
| default: | |
| break; | |
| } | |
| BSP_LCD_SetBackColor(LCD_COLOR_WHITE); | |
| BSP_LCD_SetTextColor(LCD_COLOR_BLUE); | |
| if(JoyState == JOY_SEL) | |
| { | |
| BSP_LCD_SetTextColor(LCD_COLOR_RED); | |
| BSP_LCD_DisplayChar(xPtr, yPtr, 'X'); | |
| } | |
| else if(JoyState == JOY_NONE) | |
| { | |
| BSP_LCD_SetTextColor(LCD_COLOR_BLUE); | |
| BSP_LCD_DisplayChar(xPtr, yPtr, 'X'); | |
| } | |
| else | |
| { | |
| BSP_LCD_SetTextColor(LCD_COLOR_WHITE); | |
| BSP_LCD_DisplayChar(old_xPtr, old_yPtr, 'X'); | |
| BSP_LCD_SetTextColor(LCD_COLOR_BLUE); | |
| BSP_LCD_DisplayChar(xPtr, yPtr, 'X'); | |
| old_xPtr = xPtr; | |
| old_yPtr = yPtr; | |
| } | |
| } | |
| if(CheckForUserInput() > 0) | |
| { | |
| return; | |
| } | |
| HAL_Delay(5); | |
| } | |
| } | |
| /** | |
| * @brief Display joystick demo hint | |
| * @param None | |
| * @retval None | |
| */ | |
| static void Joystick_SetHint(void) | |
| { | |
| /* Clear the LCD */ | |
| BSP_LCD_Clear(LCD_COLOR_WHITE); | |
| /* Set Joystick Demo description */ | |
| BSP_LCD_SetTextColor(LCD_COLOR_BLUE); | |
| BSP_LCD_FillRect(0, 0, BSP_LCD_GetXSize(), 80); | |
| BSP_LCD_SetTextColor(LCD_COLOR_WHITE); | |
| BSP_LCD_SetBackColor(LCD_COLOR_BLUE); | |
| BSP_LCD_SetFont(&Font24); | |
| BSP_LCD_DisplayStringAt(0, 0, (uint8_t *)"Joystick", CENTER_MODE); | |
| BSP_LCD_SetFont(&Font12); | |
| BSP_LCD_DisplayStringAt(0, 30, (uint8_t *)"Please use the joystick to", CENTER_MODE); | |
| BSP_LCD_DisplayStringAt(0, 45, (uint8_t *)"move the pointer inside the", CENTER_MODE); | |
| BSP_LCD_DisplayStringAt(0, 60, (uint8_t *)"rectangle", CENTER_MODE); | |
| /* Set the LCD Text Color */ | |
| BSP_LCD_SetTextColor(LCD_COLOR_BLUE); | |
| BSP_LCD_DrawRect(10, 90, BSP_LCD_GetXSize() - 20, BSP_LCD_GetYSize()- 100); | |
| BSP_LCD_DrawRect(11, 91, BSP_LCD_GetXSize() - 22, BSP_LCD_GetYSize()- 102); | |
| } | |
| /** | |
| * @} | |
| */ | |
| /** | |
| * @} | |
| */ | |
| /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ | |