32F429IDISCOVERY TFT-LCD에 다양한 색 출력하기 - 3

이전 예제에서는 10가지 색을 순차적으로 띄었다면, 랜덤 좌표와 RGB를 받아서 기괴한 그림을 띄우는 것으로 하려고 한다

 

	/* Includes ------------------------------------------------------------------*/
	#include "main.h"
	/* Private includes ----------------------------------------------------------*/
	/* USER CODE BEGIN Includes */
	#include "lcd_ili9341.h"
	#include "stm32f429i_discovery_ts.h"
	#include <stdio.h>
	#include <stdlib.h>
	/* USER CODE END Includes */
	/* Private typedef -----------------------------------------------------------*/
	/* USER CODE BEGIN PTD */
	#define swap(a,b) {int16_t t=a; a=b; b=t;}
	/* 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 ---------------------------------------------------------*/
	I2C_HandleTypeDef hi2c3;
	LTDC_HandleTypeDef hltdc;
	SPI_HandleTypeDef hspi5;
	UART_HandleTypeDef huart1;
	/* USER CODE BEGIN PV */
	/* USER CODE END PV */
	/* Private function prototypes -----------------------------------------------*/
	void SystemClock_Config(void);
	static void MX_GPIO_Init(void);
	static void MX_LTDC_Init(void);
	static void MX_SPI5_Init(void);
	static void MX_USART1_UART_Init(void);
	static void MX_I2C3_Init(void);
	/* USER CODE BEGIN PFP */
	int _write(int file, char *ptr, int len)
	{
	HAL_UART_Transmit(&huart1, (uint8_t *)ptr, len, 0xFFFFFFFF);
	return len;
	}
	/* USER CODE END PFP */
	/* Private user code ---------------------------------------------------------*/
	/* USER CODE BEGIN 0 */
	#define LCD_FRAMEBUFFER_SIZE (LCD_PIXEL_WIDTH * LCD_PIXEL_HEIGHT)
	uint16_t frame_buffer[LCD_FRAMEBUFFER_SIZE];
	void full_screen(uint16_t color)
	{
	for(uint32_t i=0; i<LCD_FRAMEBUFFER_SIZE; i++) {
	frame_buffer[i] = color;
	}
	}
	void draw_pixel(uint16_t x, uint16_t y, uint16_t color)
	{
	frame_buffer[240*y+x] = color;
	}
	void FillRectangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)
	{
	uint16_t xpos, ypos;
	if(x1>x2) swap(x1, x2);
	if(y1>y2) swap(y1, y2);
	for(ypos=y1; ypos<=y2; ypos++) {
	for(xpos=x1; xpos<=x2; xpos++) {
	draw_pixel(xpos, ypos, color);
	}
	}
	}
	/* 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 */
	TS_StateTypeDef stTouch;
	BSP_TS_Init(240, 320);
	/* USER CODE END SysInit */
	/* Initialize all configured peripherals */
	MX_GPIO_Init();
	MX_LTDC_Init();
	MX_SPI5_Init();
	MX_USART1_UART_Init();
	MX_I2C3_Init();
	/* USER CODE BEGIN 2 */
	HAL_GPIO_WritePin(GPIOC, GPIO_PIN_2, GPIO_PIN_SET);
	LCD_PowerOn();
	HAL_LTDC_SetAddress(&hltdc, (uint32_t)frame_buffer, 0);
	/* USER CODE END 2 */
	/* Infinite loop */
	/* USER CODE BEGIN WHILE */
	while (1)
	{
	/* USER CODE END WHILE */
	/* USER CODE BEGIN 3 */
	FillRectangle(rand()%240, rand()%320, rand()%240, rand()%320, rand()%0xFFFF);
	HAL_Delay(10);
	}
	/* USER CODE END 3 */
	}

view raw main.c hosted with ❤ by GitHub

 

 

프로젝트파일: https://github.com/surinoel/stm32/tree/master/32F429IDISCOVERY/cubeMX/HAL_TFT_RAND