Контроллер ST7735R
1- GND
2- /Reset
3- DC
4- WR
5- RD
6- D0
7- D1
8- D2
9- D3
10- D4
11- D5
12- D6
13- D7
14- CS
15- VDDIO (+) (1.65V~3.7V (VDDI ≤ VDD))
16- Конец резистора, подцепленного другим выводом к VDDIO. Видимо для идентификации модели экрана
17- VDD (+) (2.3V~4.8V)
18- A (LED+) (к +3.3В через резистор)
19- K (LED-)
20- GND

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2022 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "stm32f1xx_ll_gpio.h"
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* 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 ---------------------------------------------------------*/

/* USER CODE BEGIN PV */
//  LCD_RST
#define LCD_RST1  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_0,GPIO_PIN_SET);
#define LCD_RST0  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_0,GPIO_PIN_RESET);
//   LCD_DC
#define LCD_DC1  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1,GPIO_PIN_SET);
#define LCD_DC0  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1,GPIO_PIN_RESET);
//   LCD_WR
#define LCD_WR1  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_2,GPIO_PIN_SET);
#define LCD_WR0  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_2,GPIO_PIN_RESET);
//   LCD_RD
#define LCD_RD1  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_3,GPIO_PIN_SET);
#define LCD_RD0  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_3,GPIO_PIN_RESET);
//  LCD_CS
#define LCD_CS1   HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4,GPIO_PIN_SET);
#define LCD_CS0   HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4,GPIO_PIN_RESET);

//Connect d0...d7  reset DC WR  RD  CS
//     to b3...b10 A0    A1 A2  A3  A4
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
void lcd_sendbyte(uint8_t byte)//8080 8 bit protocol
{
	LCD_CS0;
	LCD_WR0;
	//lcd d0 connected to pin b3, d1 to d4, that is why byte shifted by 3	 ...
	LL_GPIO_WriteOutputPort(GPIOB, byte<<3);
	LCD_WR1;//The display writes D[17:0] lines when there is a rising edge of WRX
	LCD_CS1;
}
void lcd_sendcmd(uint8_t cmd)
{
	LCD_DC0;
	lcd_sendbyte(cmd);
}
void lcd_senddata(uint8_t data)
{
	LCD_DC1;
	lcd_sendbyte(data);
}
void lcd_draw_pixel(uint8_t x, uint8_t y, uint16_t color)
{
	lcd_sendcmd(0x2A);//Column adress set
	lcd_senddata(0x00);
	lcd_senddata(x);
	
	lcd_sendcmd(0x2B);//Row Address Set
	lcd_senddata(0x00);
	lcd_senddata(y);
	
	lcd_sendcmd(0x2C);//Memory Write 
	lcd_senddata((color & 0xFF00)>>8);//higher byte
	lcd_senddata(color & 0x00FF);//lower byte
}
void lcd_at(uint8_t start_x, uint8_t start_y, uint8_t stop_x, uint8_t stop_y)
{
	lcd_sendcmd(0x2A);
	lcd_senddata(0x00);
	lcd_senddata(start_x);
	lcd_senddata(0x00);
	lcd_senddata(stop_x);
	
	lcd_sendcmd(0x2B);
	lcd_senddata(0x00);
	lcd_senddata(start_y);
	lcd_senddata(0x00);
	lcd_senddata(stop_y);
}

/* 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 */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  /* USER CODE BEGIN 2 */
	//here my functions
	//inicializaciya
  LCD_RD1;
  LCD_CS0;            // CS=0   
  LCD_RST0;           // RST=0 

  HAL_Delay(120);      

  LCD_RST1;           // RST=1
  HAL_Delay(120);  

   
  lcd_sendcmd(0x11); // Sleep Out & Booster On 

  HAL_Delay(120);      // 

  lcd_sendcmd (0x3A); // Color mode (Interface Pixel Format)
  lcd_senddata(0x05); // 16-bit/pixel   
	
	//lcd_sendcmd (0x20); // Display inversion off
	lcd_sendcmd (0x21); // Display inversion on
	
  lcd_sendcmd (0x29); // Display On
	
	unsigned char y;
  unsigned char x;
   //  
  for (y=0;y<160;y++)
	{
     for (x=0;x<128;x++)
		 {
        uint16_t color=0x0;
        if (y<53) color=0xF800; //RED
        else if (y<106) color=0x07E0; //GREEN
				else if (y<160) color=0x001F; //BLUE 				
        lcd_draw_pixel(x, y, color);
     }	
	}
	
	
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
		
	/*	for (y=0;y<160;y++)
		{
			for (x=0;x<128;x++)
			{
				uint16_t color=0x0;//don`t what is this color, but drawn white
				lcd_draw_pixel(x, y, color);
			}
		}
		
		HAL_Delay(120);  
		
		lcd_at(0, 0, 128, 160);
		lcd_sendcmd(0x2C);
		for (y=0;y<160;y++)
		{
     for (x=0;x<128;x++)
		 {
        uint16_t color=0x0000;
        if (y<40) color=0xFF00; // 
        else  
				{
          if (y<80) color=0x02E0; // Green 
					else 
					{ 
						if (y<120) color=0x001F; 
					} //  
				}
        lcd_senddata((color & 0xFF00)>>8);//higher bits
				lcd_senddata(color & 0x00FF);//lower bits
      }	
	}
		
	HAL_Delay(120);  
	
	lcd_at(0, 0, 128, 160);
	lcd_sendcmd(0x2C);	
	for (y=0;y<160;y++)
	{
    for (x=0;x<128;x++)
		{
			uint16_t color=0xFF00;
			lcd_senddata((color & 0xFF00)>>8);//higher bits
			lcd_senddata(color & 0x00FF);//lower bits
		}
	}
	*/
	
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  /** Initializes the CPU, AHB and APB buses clocks
  */
  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_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  {
    Error_Handler();
  }
}

/**
  * @brief GPIO Initialization Function
  * @param None
  * @retval None
  */
static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};

  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOD_CLK_ENABLE();
  __HAL_RCC_GPIOA_CLK_ENABLE();
  __HAL_RCC_GPIOB_CLK_ENABLE();

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3
                          |GPIO_PIN_4, GPIO_PIN_RESET);

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(GPIOB, GPIO_PIN_10|GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5
                          |GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9, GPIO_PIN_RESET);

  /*Configure GPIO pins : PA0 PA1 PA2 PA3
                           PA4 */
  GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3
                          |GPIO_PIN_4;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  /*Configure GPIO pins : PB10 PB3 PB4 PB5
                           PB6 PB7 PB8 PB9 */
  GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5
                          |GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
  * @brief  Period elapsed callback in non blocking mode
  * @note   This function is called  when TIM2 interrupt took place, inside
  * HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
  * a global variable "uwTick" used as application time base.
  * @param  htim : TIM handle
  * @retval None
  */
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
  /* USER CODE BEGIN Callback 0 */

  /* USER CODE END Callback 0 */
  if (htim->Instance == TIM2) {
    HAL_IncTick();
  }
  /* USER CODE BEGIN Callback 1 */

  /* USER CODE END Callback 1 */
}

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */

  /* USER CODE END Error_Handler_Debug */
}

#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 CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/