STM32F429 GT811触摸芯片驱动源码 -

/**
******************************************************************************
* File Name : main.c
* Description : Main program body
******************************************************************************
*
* COPYRIGHT(c) 2016 STMicroelectronics
*
* 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 ------------------------------------------------------------------*/
#include "stm32f7xx_hal.h"
#include "dma.h"
#include "dma2d.h"
#include "i2c.h"
#include "ltdc.h"
#include "usart.h"
#include "gpio.h"
#include "fmc.h"
/* USER CODE BEGIN Includes */
#include "stm32746g_sdram.h"
#include "stm32746g_LCD.h"
#include "GT811.h"
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
TS_StateTypeDef TS_State={0};
uint8_t TS_flag ;
uint8_t TouchPoit;
TS_StateTypeDef TS_BKState;
uint8_t value = 0;
uint16_t i;
uint32_t PointColor[]={LCD_COLOR_BLUE,LCD_COLOR_GREEN,LCD_COLOR_RED,LCD_COLOR_MAGENTA,LCD_COLOR_YELLOW};
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* Enable I-Cache-------------------------------------------------------------*/
SCB_EnableICache();
/* Enable D-Cache-------------------------------------------------------------*/
SCB_EnableDCache();
/* MCU Configuration----------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* Configure the system clock */
SystemClock_Config();
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_DMA_Init();
MX_DMA2D_Init();
MX_FMC_Init();
// MX_I2C4_Init();
MX_LTDC_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
/* Program the SDRAM external device */
HAL_GPIO_WritePin(GPIOA,GPIO_PIN_3,GPIO_PIN_RESET);
BSP_SDRAM_Init();
BSP_LCD_Init();
GT811_Init();
BSP_LCD_SetLayerVisible(1,DISABLE);
BSP_LCD_SelectLayer(0);
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
BSP_LCD_SetBackColor(LCD_COLOR_BLACK);
BSP_LCD_Clear(BSP_LCD_GetBackColor());
BSP_LCD_SetFont(&Font24);
BSP_LCD_DisplayStringAt(0,0, (uint8_t*)"Capacitive touch screen test",CENTER_MODE);
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
BSP_LCD_DrawHLine(0, 30, 1024);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
if(TS_flag == 1)
{
GT811_GetState(&TS_State);
if(TS_State.touchDetected != 0)
{
TouchPoit = TS_BKState.touchDetected;
for(i = 0;i < 5;i++)
{
if(TouchPoit & 0x01)
{
BSP_LCD_SetTextColor(LCD_COLOR_BLACK);
BSP_LCD_FillCircle(TS_BKState.touchX[i],TS_BKState.touchY[i],20);
BSP_LCD_DrawVLine(TS_BKState.touchX[i], 55, 580);
BSP_LCD_DrawHLine(5, TS_BKState.touchY[i], 1004);
}
TouchPoit >>= 1;
}
TouchPoit = TS_State.touchDetected;
for(i = 0;i < 5;i++)
{
if(TouchPoit & 0x01)
{
if(TS_State.touchY[i] < 75)TS_State.touchY[i] = 75;
if(TS_State.touchY[i] > 580)TS_State.touchY[i] = 580;
if(TS_State.touchX[i] < 20)TS_State.touchX[i] = 20;
if(TS_State.touchX[i] > 1004)TS_State.touchX[i] = 1004;
BSP_LCD_SetTextColor(PointColor[i]);
BSP_LCD_FillCircle(TS_State.touchX[i],TS_State.touchY[i],20);
BSP_LCD_DrawVLine(TS_State.touchX[i], 55, 580);
BSP_LCD_DrawHLine(5, TS_State.touchY[i], 1004);
TS_BKState.touchX[i] = TS_State.touchX[i];
TS_BKState.touchY[i] = TS_State.touchY[i];
}
TouchPoit >>= 1;
}
TS_BKState.touchDetected = TS_State.touchDetected;
}
TS_flag = 0;
}
}
/* USER CODE END 3 */
}
/** System Clock Configuration
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
__PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
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 = 432;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 2;
HAL_RCC_OscConfig(&RCC_OscInitStruct);
HAL_PWREx_ActivateOverDrive();
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_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_7);
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LTDC|RCC_PERIPHCLK_USART1
|RCC_PERIPHCLK_I2C4;
PeriphClkInitStruct.PLLSAI.PLLSAIN = 192;
PeriphClkInitStruct.PLLSAI.PLLSAIR = 3;
PeriphClkInitStruct.PLLSAI.PLLSAIQ = 2;
PeriphClkInitStruct.PLLSAI.PLLSAIP = RCC_PLLSAIP_DIV2;
PeriphClkInitStruct.PLLSAIDivQ = 1;
PeriphClkInitStruct.PLLSAIDivR = RCC_PLLSAIDIVR_2;
PeriphClkInitStruct.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK2;
PeriphClkInitStruct.I2c4ClockSelection = RCC_I2C4CLKSOURCE_SYSCLK;
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
/* SysTick_IRQn interrupt configuration */
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}
/* USER CODE BEGIN 4 */
/**
* @}
*/
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
if(GPIO_Pin == GPIO_PIN_7)
{
TS_flag = 1;
printf("ok\r\n");
}
}
/* USER CODE END 4 */
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