417 lines
11 KiB
C
417 lines
11 KiB
C
// Driver afficheur ADA 1983/chip ILI9341 pour Kit STM32L476 IUT1 de Grenoble Dpt GEII
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//
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// Adaptations L476, et fusion libs : V. GRENNERAT, IUT1 de Grenoble, Dpt GEII
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// Correction bug coordonnees X et Y pour Draw_Char et Draw_Text : V. GRENNERAT
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// Ajout fonction LCD_Draw_Image_XY : V. GRENNERAT
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// Intégration des fonctions de configuration SPI3 et GPIO : V. GRENNERAT
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// Version 2 (1/12/2019) :
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// Suppression de l'utilisation de la HAL STM32 : V. GRENNERAT
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// Diverses optimisations, dans les burst images.
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// --------------------------------
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// MIT License
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//
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// Copyright (c) 2017 Matej Artnak
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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#include "LCD_driver.h"
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void LCD_Write_Command(uint8_t Command) {
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while ((SPI1->SR & SPI_SR_BSY) != 0);// Wait that everything is sent before changing the RS pin
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CMD
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;
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while ((SPI1->SR & SPI_SR_TXE) == 0);
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SPI1->DR = Command;
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}
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/* Send Data (char) to LCD via SPI bus */
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void LCD_Write_Data(uint8_t Data) {
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while ((SPI1->SR & SPI_SR_BSY) != 0);// Wait that everything is sent before changing the RS pin
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DATA
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;
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while ((SPI1->SR & SPI_SR_TXE) == 0);
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SPI1->DR = Data;
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}
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void LCD_Write_Data16(uint16_t data) {
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while ((SPI1->SR & SPI_SR_BSY) != 0);// Wait that everything is sent before changing the RS pin
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DATA
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;
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while ((SPI1->SR & SPI_SR_TXE) == 0);
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SPI1->DR = (data >> 8) & 0xFF;// Send MSB
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while ((SPI1->SR & SPI_SR_TXE) == 0);
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SPI1->DR = data & 0xFF;// Send LSB
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}
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/* Set the frame to draw into and sends a write into frame command */
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void LCD_Set_Address(uint16_t X1, uint16_t Y1, uint16_t X2, uint16_t Y2) {
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LCD_Write_Command(0x2A);
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LCD_Write_Data16(X1);
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LCD_Write_Data16(X2);
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LCD_Write_Command(0x2B);
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LCD_Write_Data16(Y1 + 19);
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LCD_Write_Data16(Y2 + 19);
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LCD_Write_Command(0x2C);
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}
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void LCD_HardwareReset() {
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HAL_GPIO_WritePin(DRESET_GPIO_Port, DRESET_Pin, GPIO_PIN_SET);
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HAL_Delay(1);
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HAL_GPIO_WritePin(DRESET_GPIO_Port, DRESET_Pin, GPIO_PIN_RESET);
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HAL_Delay(20);
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HAL_GPIO_WritePin(DRESET_GPIO_Port, DRESET_Pin, GPIO_PIN_SET);
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HAL_Delay(150);
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}
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void LCD_Init(void) {
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LCD_HardwareReset();
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// enable spi1
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SPI1->CR1 |= SPI_CR1_SPE;// NSS (CS) pin is automatically pulled low
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HAL_Delay(300);
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// Software reset
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LCD_Write_Command(0x01);
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HAL_Delay(150);
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// Color mode: 16bit/pixels
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LCD_Write_Command(0x3A);
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LCD_Write_Data(0x55);
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HAL_Delay(150);
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// Enable color inversion (INVON)
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LCD_Write_Command(0x21);
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// Configure orientation stuff
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LCD_Write_Command(0x36);
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LCD_Write_Data(0b00111100);
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// Exit sleep
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LCD_Write_Command(0x11);
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HAL_Delay(150);
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// Turn on display
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LCD_Write_Command(0x29);
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HAL_Delay(400);
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// Fill white
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LCD_Fill_Screen(WHITE);
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// Draw colors columns
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LCD_Set_Address(30, 30, LCD_WIDTH - 30, LCD_HEIGHT - 30);
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uint32_t size = (LCD_WIDTH - 59) * 20;
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LCD_Draw_Colour_Burst(BLACK, size);
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LCD_Draw_Colour_Burst(WHITE, size);
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LCD_Draw_Colour_Burst(BLUE, size);
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LCD_Draw_Colour_Burst(GREEN, size);
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LCD_Draw_Colour_Burst(RED, size);
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LCD_Draw_Colour_Burst(BLACK, 4 * size);
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// Draw rectangles in the angles
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LCD_Draw_Rectangle(1, 1, 20, 20, RED);
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LCD_Draw_Rectangle(LCD_WIDTH - 21, 1, 20, 20, GREEN);
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LCD_Draw_Rectangle(LCD_WIDTH - 21, LCD_HEIGHT - 21, 20, 20,
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BLACK);
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LCD_Draw_Rectangle(1, LCD_HEIGHT - 21, 20, 20, BLUE);
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}
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//INTERNAL FUNCTIONS OF THE LIBRARY
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void LCD_Draw_Colour_Burst(uint16_t color, uint32_t size) {
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while ((SPI1->SR & SPI_SR_BSY) != 0);// Wait that everything is sent before changing the RS pin
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DATA
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;
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for (uint32_t j = 0; j < size; j++) {
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while ((SPI1->SR & SPI_SR_TXE) == 0);
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SPI1->DR = (color >> 8) & 0xFF;
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while ((SPI1->SR & SPI_SR_TXE) == 0);
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SPI1->DR = color & 0xFF;
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}
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}
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void LCD_Fill_Screen(uint16_t color) {
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LCD_Draw_Rectangle(0, 0, LCD_WIDTH, LCD_HEIGHT, color);
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}
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void LCD_Draw_Pixel(uint16_t x, uint16_t y, uint16_t color) {
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if ((x >= LCD_WIDTH) || (y >= LCD_HEIGHT)) return;
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LCD_Set_Address(x, y, x, y);
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LCD_Draw_Colour_Burst(color, 1);
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}
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void LCD_Draw_Rectangle(
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uint16_t X,
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uint16_t Y,
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uint16_t Width,
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uint16_t Height,
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uint16_t Colour) {
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if ((X >= LCD_WIDTH) || (Y >= LCD_HEIGHT)) return;
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if ((X + Width - 1) >= LCD_WIDTH) {
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Width = LCD_WIDTH - X;
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}
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if ((Y + Height - 1) >= LCD_HEIGHT) {
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Height = LCD_HEIGHT - Y;
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}
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LCD_Set_Address(X, Y, X + Width - 1, Y + Height - 1);
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LCD_Draw_Colour_Burst(Colour, Height * Width);
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}
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void LCD_Draw_Horizontal_Line(
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uint16_t X,
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uint16_t Y,
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uint16_t Width,
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uint16_t Colour) {
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if ((X >= LCD_WIDTH) || (Y >= LCD_HEIGHT)) return;
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if ((X + Width - 1) >= LCD_WIDTH) {
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Width = LCD_WIDTH - X;
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}
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LCD_Set_Address(X, Y, X + Width - 1, Y);
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LCD_Draw_Colour_Burst(Colour, Width);
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}
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void LCD_Draw_Vertical_Line(
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uint16_t X,
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uint16_t Y,
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uint16_t Height,
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uint16_t Colour) {
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if ((X >= LCD_WIDTH) || (Y >= LCD_HEIGHT)) return;
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if ((Y + Height - 1) >= LCD_HEIGHT) {
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Height = LCD_HEIGHT - Y;
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}
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LCD_Set_Address(X, Y, X, Y + Height - 1);
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LCD_Draw_Colour_Burst(Colour, Height);
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}
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void LCD_Draw_Hollow_Circle(
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uint16_t X,
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uint16_t Y,
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uint16_t Radius,
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uint16_t Colour) {
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int x = Radius - 1;
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int y = 0;
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int dx = 1;
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int dy = 1;
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int err = dx - (Radius << 1);
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while (x >= y) {
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LCD_Draw_Pixel(X + x, Y + y, Colour);
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LCD_Draw_Pixel(X + y, Y + x, Colour);
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LCD_Draw_Pixel(X - y, Y + x, Colour);
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LCD_Draw_Pixel(X - x, Y + y, Colour);
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LCD_Draw_Pixel(X - x, Y - y, Colour);
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LCD_Draw_Pixel(X - y, Y - x, Colour);
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LCD_Draw_Pixel(X + y, Y - x, Colour);
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LCD_Draw_Pixel(X + x, Y - y, Colour);
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if (err <= 0) {
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y++;
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err += dy;
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dy += 2;
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}
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if (err > 0) {
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x--;
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dx += 2;
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err += (-Radius << 1) + dx;
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}
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}
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}
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void LCD_Draw_Filled_Circle(
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uint16_t X,
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uint16_t Y,
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uint16_t Radius,
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uint16_t Colour) {
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int x = Radius;
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int y = 0;
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int xChange = 1 - (Radius << 1);
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int yChange = 0;
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int radiusError = 0;
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while (x >= y) {
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for (int i = X - x; i <= X + x; i++) {
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LCD_Draw_Pixel(i, Y + y, Colour);
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LCD_Draw_Pixel(i, Y - y, Colour);
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}
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for (int i = X - y; i <= X + y; i++) {
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LCD_Draw_Pixel(i, Y + x, Colour);
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LCD_Draw_Pixel(i, Y - x, Colour);
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}
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y++;
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radiusError += yChange;
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yChange += 2;
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if (((radiusError << 1) + xChange) > 0) {
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x--;
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radiusError += xChange;
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xChange += 2;
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}
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}
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//Really slow implementation, will require future overhaul
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//TODO: https://stackoverflow.com/questions/1201200/fast-algorithm-for-drawing-filled-circles
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}
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void LCD_Draw_Hollow_Rectangle_Coord(
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uint16_t X0,
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uint16_t Y0,
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uint16_t X1,
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uint16_t Y1,
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uint16_t Colour) {
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uint16_t X_length = 0;
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uint16_t Y_length = 0;
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uint8_t Negative_X = 0;
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uint8_t Negative_Y = 0;
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float Calc_Negative = 0;
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Calc_Negative = X1 - X0;
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if (Calc_Negative < 0) Negative_X = 1;
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Calc_Negative = 0;
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Calc_Negative = Y1 - Y0;
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if (Calc_Negative < 0) Negative_Y = 1;
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//DRAW HORIZONTAL!
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if (!Negative_X) {
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X_length = X1 - X0;
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} else {
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X_length = X0 - X1;
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}
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LCD_Draw_Horizontal_Line(X0, Y0, X_length, Colour);
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LCD_Draw_Horizontal_Line(X0, Y1, X_length, Colour);
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//DRAW VERTICAL!
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if (!Negative_Y) {
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Y_length = Y1 - Y0;
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} else {
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Y_length = Y0 - Y1;
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}
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LCD_Draw_Vertical_Line(X0, Y0, Y_length, Colour);
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LCD_Draw_Vertical_Line(X1, Y0, Y_length, Colour);
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if ((X_length > 0) || (Y_length > 0)) {
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LCD_Draw_Pixel(X1, Y1, Colour);
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}
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}
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void LCD_Draw_Filled_Rectangle_Coord(
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uint16_t X0,
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uint16_t Y0,
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uint16_t X1,
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uint16_t Y1,
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uint16_t Colour) {
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uint16_t X_length = 0;
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uint16_t Y_length = 0;
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uint8_t Negative_X = 0;
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uint8_t Negative_Y = 0;
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int32_t Calc_Negative = 0;
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uint16_t X0_true = 0;
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uint16_t Y0_true = 0;
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Calc_Negative = X1 - X0;
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if (Calc_Negative < 0) Negative_X = 1;
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Calc_Negative = 0;
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Calc_Negative = Y1 - Y0;
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if (Calc_Negative < 0) Negative_Y = 1;
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//DRAW HORIZONTAL!
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if (!Negative_X) {
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X_length = X1 - X0;
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X0_true = X0;
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} else {
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X_length = X0 - X1;
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X0_true = X1;
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}
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//DRAW VERTICAL!
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if (!Negative_Y) {
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Y_length = Y1 - Y0;
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Y0_true = Y0;
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} else {
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Y_length = Y0 - Y1;
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Y0_true = Y1;
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}
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LCD_Draw_Rectangle(X0_true, Y0_true, X_length, Y_length, Colour);
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}
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/*Dessine une image dans une zone de l'ecran, aux coordonnées X et Y*/
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//CONVERTISSEUR: http://www.digole.com/tools/PicturetoC_Hex_converter.php
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//65K colour (2Bytes / Pixel)
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//void LCD_Draw_Image_XY(
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// const char *Image_Array,
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// uint16_t X,
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// uint16_t Y,
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// uint16_t Width,
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// uint16_t Height) {
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// LCD_Set_Address(X, Y, X + Width - 1, Y + Height - 1);
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//
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// DATA
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// ;
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// CS_ON;
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//
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// for (uint32_t i = 0; i < Width * Height * 2; i += 2) {
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// while ((SPI3->SR & SPI_SR_TXE) == 0);//Si FIFO full (TX buffer Empty=0), on attend
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//// on utilise l'ecriture 16 bits dans DR, pour des envois 8 bits
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//// Le LSB doit etre place ds le MSB :
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// SPI3->DR = ((short) Image_Array[i + 1]) << 8 | Image_Array[i];
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// }
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//
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// while ((SPI3->SR & SPI_SR_BSY) != 0);//Attendre fin envoi trame
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// CS_OFF;
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//}
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/*Draws a full screen picture from flash. Image converted from RGB .jpeg/other to C array using online converter*/
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//USING CONVERTER: http://www.digole.com/tools/PicturetoC_Hex_converter.php
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//65K colour (2Bytes / Pixel)
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//void LCD_Draw_Image_Full(const char *Image_Array, uint8_t Orientation) {
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// switch (Orientation) {
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// case SCREEN_HORIZONTAL_1:
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// LCD_Set_Rotation(SCREEN_HORIZONTAL_1);
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// LCD_Set_Address(0, 0, LCD_SCREEN_WIDTH, LCD_SCREEN_HEIGHT);
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// break;
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//
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// case SCREEN_HORIZONTAL_2:
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// LCD_Set_Rotation(SCREEN_HORIZONTAL_2);
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// LCD_Set_Address(0, 0, LCD_SCREEN_WIDTH, LCD_SCREEN_HEIGHT);
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// break;
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//
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// case SCREEN_VERTICAL_1:
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// LCD_Set_Rotation(SCREEN_VERTICAL_1);
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// LCD_Set_Address(0, 0, LCD_SCREEN_HEIGHT, LCD_SCREEN_WIDTH);
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// break;
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//
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// case SCREEN_VERTICAL_2:
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// LCD_Set_Rotation(SCREEN_VERTICAL_2);
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// LCD_Set_Address(0, 0, LCD_SCREEN_HEIGHT, LCD_SCREEN_WIDTH);
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// break;
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// }
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//
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// DATA
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// ;
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// CS_ON;
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//
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// for (uint32_t i = 0; i < LCD_SCREEN_WIDTH * LCD_SCREEN_HEIGHT * 2; i += 2) {
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// while ((SPI3->SR & SPI_SR_TXE) == 0);//Si FIFO full (TX buffer Empty=0), on attend
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//// on utilise l'ecriture 16 bits dans DR, pour des envois 8 bits
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//// Le LSB doit etre place ds le MSB :
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// SPI3->DR = ((short) Image_Array[i + 1]) << 8 | Image_Array[i];
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// }
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//
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// while ((SPI3->SR & SPI_SR_BSY) != 0);//Attendre fin envoi trame
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// CS_OFF;
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//}
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