#include "lcd.h" #include "cfont.h" #include "led.h" /********************************************************************************* **********************启明欣欣 STM32F407应用开发板(高配版)************************ ********************************************************************************** * 文件名称: lcd.c * * 文件简述：LCD显示驱动程序 * * 创建日期：2016.10.08 * * 版 本：V1.0 * * 作 者：Clever * * 说 明：此例程支持屏幕驱动为ILI9341，SSD1963 * * RA8875需用模块资料里面的RA8875屏幕资料中的LCD整个文件夹替换本例程的 * LCD文件夹，重新编译即可 * ********************************************************************************** *********************************************************************************/ SRAM_HandleTypeDef LCDSRAM_Handler; //SRAM句柄(用于控制LCD) //初始化LCD的画笔颜色和背景色 u16 BRUSH_COLOR = BLACK; //画笔颜色 u16 BACK_COLOR = WHITE; //背景色 //LCD驱动参数 u16 lcd_id; //LCD ID u8 dir_flag; //横屏与竖屏控制：0，竖屏；1，横屏 u16 lcd_width; //LCD的宽度 u16 lcd_height; //LCD的高度 u16 write_gramcmd; //写gram指令 u16 setxcmd; //设置x坐标指令 u16 setycmd; //设置y坐标指令 /**************************************************************************** * 名 称: void LCD_WriteReg(u16 LCD_Reg, u16 LCD_Value) * 功 能：LCD写寄存器 * 入口参数：LCD_Reg: 寄存器地址 * LCD_RegValue: 要写入的数据 * 返回参数：无 * 说 明： ****************************************************************************/ void LCD_WriteReg(u16 LCD_Reg, u16 LCD_Value) { LCD_CMD = LCD_Reg; //写入要写的寄存器序号 LCD_DATA = LCD_Value; //向寄存器写入的数据 } /**************************************************************************** * 名 称: u16 LCD_ReadReg(u16 LCD_Reg) * 功 能：LCD读寄存器 * 入口参数：LCD_Reg:寄存器地址 * 返回参数：读到该寄存器序号里的值 * 说 明： ****************************************************************************/ u16 LCD_ReadReg(u16 LCD_Reg) { LCD_CMD = LCD_Reg; //写入要读的寄存器序号 delay_us(4); return LCD_DATA; //返回读到的值 } //lcd延时函数 void lcdm_delay(u8 i) { while (i--) ; } //开始写GRAM void LCD_WriteGRAM(void) { LCD_CMD = write_gramcmd; } //LCD开启显示 void LCD_DisplayOn(void) { LCD_CMD = 0x29; //9341与1963开显示命令一样 } //LCD关闭显示 void LCD_DisplayOff(void) { LCD_CMD = 0x28; //9341与1963关显示命令一样 } /**************************************************************************** * 名 称: void LCD_Open_Window(u16 X0,u16 Y0,u16 width,u16 height) * 功 能：开窗口,并设置画点坐标到窗口左上角(X0,Y0) * 入口参数：X0,Y0:窗口起始坐标(左上角) width,height:窗口宽度和高度 * 返回参数：无 * 说 明：窗体大小:width*height.?B ****************************************************************************/ void LCD_Open_Window(u16 X0, u16 Y0, u16 width, u16 height) { width = X0 + width - 1; //算出右下角坐标 height = Y0 + height - 1; if (dir_flag == 0 && lcd_id == 0X1963) //1963竖屏处理 { X0 = lcd_width - width - X0; height = Y0 + height - 1; LCD_CMD = setxcmd; LCD_DATA = X0 >> 8; LCD_DATA = X0 & 0XFF; LCD_DATA = (X0 + width - 1) >> 8; LCD_DATA = (X0 + width - 1) & 0XFF; LCD_CMD = setycmd; LCD_DATA = Y0 >> 8; LCD_DATA = Y0 & 0XFF; LCD_DATA = height >> 8; LCD_DATA = height & 0XFF; } else { LCD_CMD = setxcmd; LCD_DATA = X0 >> 8; LCD_DATA = X0 & 0XFF; LCD_DATA = width >> 8; LCD_DATA = width & 0XFF; LCD_CMD = setycmd; LCD_DATA = Y0 >> 8; LCD_DATA = Y0 & 0XFF; LCD_DATA = height >> 8; LCD_DATA = height & 0XFF; } } /**************************************************************************** * 名 称: void Set_Scan_Direction(u8 direction) 启￥明#欣￥欣 * 功 能：设置LCD的扫描方向 * 入口参数：direction：扫描方向 * 返回参数：无 * 说 明： ****************************************************************************/ void Set_Scan_Direction(u8 direction) { u16 skhda = 0; u16 diomf = 0; //9341横屏和1963竖屏时需要转化下 if ((dir_flag == 1 && lcd_id == 0X9341) || (dir_flag == 0 && lcd_id == 0X1963)) { switch (direction) //方向转换 { case 0: direction = 6; break; case 1: direction = 7; break; case 2: direction = 4; break; case 3: direction = 5; break; case 4: direction = 1; break; case 5: direction = 0; break; case 6: direction = 3; break; case 7: direction = 2; break; } } switch (direction) { case L2R_U2D: //从左到右,从上到下 skhda |= (0 << 7) | (0 << 6) | (0 << 5); break; case L2R_D2U: //从左到右,从下到上 skhda |= (1 << 7) | (0 << 6) | (0 << 5); break; case R2L_U2D: //从右到左,从上到下 skhda |= (0 << 7) | (1 << 6) | (0 << 5); break; case R2L_D2U: //从右到左,从下到上 skhda |= (1 << 7) | (1 << 6) | (0 << 5); break; case U2D_L2R: //从上到下,从左到右 skhda |= (0 << 7) | (0 << 6) | (1 << 5); break; case U2D_R2L: //从上到下,从右到左 skhda |= (0 << 7) | (1 << 6) | (1 << 5); break; case D2U_L2R: //从下到上,从左到右 skhda |= (1 << 7) | (0 << 6) | (1 << 5); break; case D2U_R2L: //从下到上,从右到左 skhda |= (1 << 7) | (1 << 6) | (1 << 5); break; } diomf = 0X36; if (lcd_id == 0X9341) skhda |= 0X08; LCD_WriteReg(diomf, skhda); LCD_Open_Window(0, 0, lcd_width, lcd_height); //设置完扫描方向后，开显示区域为全屏窗口 } /**************************************************************************** * 名 称: void Set_Display_Mode(u8 mode) * 功 能：设置LCD显示方向 * 入口参数：mode: 0,竖屏 1,横屏 * 返回参数：无 * 说 明：?B ****************************************************************************/ void Set_Display_Mode(u8 mode) { if (mode == 0) //竖屏 { dir_flag = 0; if (lcd_id == 0X9341) { write_gramcmd = 0X2C; setxcmd = 0X2A; setycmd = 0X2B; lcd_width = 240; lcd_height = 320; } else if (lcd_id == 0X1963) { write_gramcmd = 0X2C; //GRAM的指令 setxcmd = 0X2B; //写X坐标指令 setycmd = 0X2A; //写Y坐标指令 lcd_width = 480; //设置宽度480 lcd_height = 800; //设置高度800 } } else //横屏 { dir_flag = 1; if (lcd_id == 0X9341) { write_gramcmd = 0X2C; setxcmd = 0X2A; setycmd = 0X2B; lcd_width = 320; lcd_height = 240; } else if (lcd_id == 0X1963) { write_gramcmd = 0X2C; //GRAM的指令 setxcmd = 0X2A; //写X坐标指令 setycmd = 0X2B; //写Y坐标指令 lcd_width = 800; //设置宽度800 lcd_height = 480; //设置高度480 } } Set_Scan_Direction(L2R_U2D); //设置扫描方向 从左到右,从下到上 } /**************************************************************************** * 名 称: void LCD_SetCursor(u16 Xaddr, u16 Yaddr) 启#明%欣#欣 * 功 能：设置光标位置 * 入口参数：x：x坐标 y：y坐标 * 返回参数：无 * 说 明： ****************************************************************************/ void LCD_SetCursor(u16 Xaddr, u16 Yaddr) { if (lcd_id == 0X9341) { LCD_CMD = setxcmd; LCD_DATA = (Xaddr >> 8); LCD_DATA = (Xaddr & 0XFF); LCD_CMD = setycmd; LCD_DATA = (Yaddr >> 8); LCD_DATA = (Yaddr & 0XFF); } else if (lcd_id == 0X1963) { if (dir_flag == 0) { Xaddr = lcd_width - 1 - Xaddr; LCD_CMD = setxcmd; LCD_DATA = 0; LCD_DATA = 0; LCD_DATA = Xaddr >> 8; LCD_DATA = Xaddr & 0XFF; } else { LCD_CMD = setxcmd; LCD_DATA = Xaddr >> 8; LCD_DATA = Xaddr & 0XFF; LCD_DATA = (lcd_width - 1) >> 8; LCD_DATA = (lcd_width - 1) & 0XFF; } LCD_CMD = setycmd; LCD_DATA = Yaddr >> 8; LCD_DATA = Yaddr & 0XFF; LCD_DATA = (lcd_height - 1) >> 8; LCD_DATA = (lcd_height - 1) & 0XFF; } } /**************************************************************************** * 名 称: u16 LCD_GetPoint(u16 x,u16 y) * 功 能：读取某点的颜色值 * 入口参数：x：x坐标 y：y坐标 * 返回参数：此点的颜色 * 说 明： ****************************************************************************/ u16 LCD_GetPoint(u16 x, u16 y) { vu16 r = 0, g = 0, b = 0; LCD_SetCursor(x, y); LCD_CMD = 0X2E; //9341与1963读GRAM指令一样 r = LCD_DATA; if (lcd_id == 0X1963) return r; //1963直接读出来就是16位颜色值 else //其他驱动就是9341 { lcdm_delay(2); b = LCD_DATA; //9341要读2次 g = r & 0XFF; //9341第一次读取的是RG的值,R在前,G在后,各占8位 g <<= 8; return (((r >> 11) << 11) | ((g >> 10) << 5) | (b >> 11)); //9341需公式转换 } } /**************************************************************************** * 名 称: void LCD_DrawPoint(u16 x,u16 y) * 功 能：画点（在该点写入画笔的颜色） * 入口参数：x：x坐标 y：y坐标 * 返回参数：无 * 说 明?BRUSH_COLOR:此点的颜色值 ****************************************************************************/ void LCD_DrawPoint(u16 x, u16 y) { LCD_SetCursor(x, y); //设置光标位置 LCD_WriteGRAM(); //开始写入GRAM LCD_DATA = BRUSH_COLOR; } /**************************************************************************** * 名 称: void LCD_Color_DrawPoint(u16 x,u16 y,u16 color) * 功 能：在设置的坐标处画相应颜色（在该点写入自定义颜色） * 入口参数：x：x坐标 y：y坐标 color 此点的颜色值 * 返回参数：无 * 说 明：color:写入此点的颜色值 GUI调用该函数 ****************************************************************************/ void LCD_Color_DrawPoint(u16 x, u16 y, u16 color) { LCD_DrawPoint(x, y); LCD_CMD = write_gramcmd; LCD_DATA = color; } /**************************************************************************** * 名 称: void Ssd1963_Set_BackLight(u8 BL_value) * 功 能：SSD1963 设置背光 * 入口参数：BL_value：背光亮度大小 取值:0-255 设置255最亮 * 返回参数：无 * 说 明： ****************************************************************************/ void Ssd1963_Set_BackLight(u8 BL_value) { LCD_CMD = 0xBE; LCD_DATA = 0x05; LCD_DATA = BL_value; LCD_DATA = 0x01; LCD_DATA = 0xFF; LCD_DATA = 0x00; LCD_DATA = 0x00; } /**************************************************************************** * 名 称: void LCD_Clear(u16 color) * 功 能：清屏函数 * 入口参数：color: 要清屏的填充色 * 返回参数：无 * 说 明：?B ****************************************************************************/ void LCD_Clear(u16 color) { u32 i = 0; u32 pointnum = 0; pointnum = lcd_width * lcd_height; //得到LCD总点数 LCD_SetCursor(0x00, 0x00); //设置光标位置 LCD_WriteGRAM(); //开始写入GRAM for (i = 0; i < pointnum; i++) { LCD_DATA = color; } } /**************************************************************************** * 名 称: void HAL_SRAM_MspInit(SRAM_HandleTypeDef *hsram) * 功 能：SRAM底层驱动 也就是配置FSMC引脚 * 入口参数：hsram:SRAM句柄 * 返回参数：无 * 说 明：此函数会被HAL_SRAM_Init()调用?B ****************************************************************************/ void HAL_SRAM_MspInit(SRAM_HandleTypeDef *hsram) { GPIO_InitTypeDef GPIO_Initure; __HAL_RCC_FSMC_CLK_ENABLE(); //使能FSMC时钟 __HAL_RCC_GPIOD_CLK_ENABLE(); //使能GPIOD时钟 __HAL_RCC_GPIOE_CLK_ENABLE(); //使能GPIOE时钟 __HAL_RCC_GPIOF_CLK_ENABLE(); //使能GPIOF时钟 __HAL_RCC_GPIOG_CLK_ENABLE(); //使能GPIOG时钟 //初始化PD0,1,4,5,8,9,10,14,15 GPIO_Initure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_14 | GPIO_PIN_15; GPIO_Initure.Mode = GPIO_MODE_AF_PP; //推挽复用 GPIO_Initure.Pull = GPIO_PULLUP; //上拉 GPIO_Initure.Speed = GPIO_SPEED_HIGH; //高速 GPIO_Initure.Alternate = GPIO_AF12_FSMC; //复用为FSMC HAL_GPIO_Init(GPIOD, &GPIO_Initure); //初始化 //初始化PE7,8,9,10,11,12,13,14,15 GPIO_Initure.Pin = GPIO_PIN_7 | GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12 | GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15; HAL_GPIO_Init(GPIOE, &GPIO_Initure); //初始化PG2 GPIO_Initure.Pin = GPIO_PIN_2; HAL_GPIO_Init(GPIOG, &GPIO_Initure); //初始化PG12 GPIO_Initure.Pin = GPIO_PIN_12; HAL_GPIO_Init(GPIOG, &GPIO_Initure); } //配置FSMC void LCD_FSMC_Config() { FSMC_NORSRAM_TimingTypeDef FSMC_ReadWriteTim; FSMC_NORSRAM_TimingTypeDef FSMC_WriteTim; LCDSRAM_Handler.Instance = FSMC_NORSRAM_DEVICE; LCDSRAM_Handler.Extended = FSMC_NORSRAM_EXTENDED_DEVICE; LCDSRAM_Handler.Init.NSBank = FSMC_NORSRAM_BANK4; //使用NE4 LCDSRAM_Handler.Init.DataAddressMux = FSMC_DATA_ADDRESS_MUX_DISABLE; //地址/数据线不复用 LCDSRAM_Handler.Init.MemoryType = FSMC_MEMORY_TYPE_SRAM; //SRAM LCDSRAM_Handler.Init.MemoryDataWidth = FSMC_NORSRAM_MEM_BUS_WIDTH_16; //16位数据宽度 LCDSRAM_Handler.Init.BurstAccessMode = FSMC_BURST_ACCESS_MODE_DISABLE; //是否使能突发访问,仅对同步突发存储器有效,此处未用到 LCDSRAM_Handler.Init.WaitSignalPolarity = FSMC_WAIT_SIGNAL_POLARITY_LOW; //等待信号的极性,仅在突发模式访问下有用 LCDSRAM_Handler.Init.WaitSignalActive = FSMC_WAIT_TIMING_BEFORE_WS; //存储器是在等待周期之前的一个时钟周期还是等待周期期间使能NWAIT LCDSRAM_Handler.Init.WriteOperation = FSMC_WRITE_OPERATION_ENABLE; //存储器写使能 LCDSRAM_Handler.Init.WaitSignal = FSMC_WAIT_SIGNAL_DISABLE; //等待使能位,此处未用到 LCDSRAM_Handler.Init.ExtendedMode = FSMC_EXTENDED_MODE_ENABLE; //读写使用不同的时序 LCDSRAM_Handler.Init.AsynchronousWait = FSMC_ASYNCHRONOUS_WAIT_DISABLE; //是否使能同步传输模式下的等待信号,此处未用到 LCDSRAM_Handler.Init.WriteBurst = FSMC_WRITE_BURST_DISABLE; //禁止突发写 LCDSRAM_Handler.Init.ContinuousClock = FSMC_CONTINUOUS_CLOCK_SYNC_ASYNC; //FMC读时序控制寄存器 FSMC_ReadWriteTim.AddressSetupTime = 0x0F; //地址建立时间（ADDSET）为16个HCLK 1/168M=6ns*16=96ns FSMC_ReadWriteTim.AddressHoldTime = 0; FSMC_ReadWriteTim.DataSetupTime = 60; //数据保存时间为60个HCLK =6*60=360ns FSMC_ReadWriteTim.AccessMode = FSMC_ACCESS_MODE_A; //模式A //FMC写时序控制寄存器 FSMC_WriteTim.BusTurnAroundDuration = 0; //总线周转阶段持续时间为0，此变量不赋值的话会莫名其妙的自动修改为4。导致程序运行正常 FSMC_WriteTim.AddressSetupTime = 9; //地址建立时间（ADDSET）为9个HCLK =54ns FSMC_WriteTim.AddressHoldTime = 0; FSMC_WriteTim.DataSetupTime = 8; //数据保存时间为6ns*9个HCLK=54n FSMC_WriteTim.AccessMode = FSMC_ACCESS_MODE_A; //模式A HAL_SRAM_Init(&LCDSRAM_Handler, &FSMC_ReadWriteTim, &FSMC_WriteTim); delay_ms(50); } u16 ILI9341_Read_id(void) { u16 id; LCD_CMD = 0xD3; //9341读ID命令 id = LCD_DATA; id = LCD_DATA; //0x00 id = LCD_DATA; //0x93 id <<= 8; id |= LCD_DATA; //0x41 return id; } u16 SSD1963_Read_id(void) { u16 id; LCD_CMD = (0xA1); //1963读ID命令 id = LCD_DATA; id = LCD_DATA; //0x57 id <<= 8; id |= LCD_DATA; //0x61 return id; } //初始化lcd void LCD_Init(void) { GPIO_InitTypeDef GPIO_Initure; __HAL_RCC_GPIOF_CLK_ENABLE(); //开启GPIOF时钟 GPIO_Initure.Pin = GPIO_PIN_10; //PF10,背光控制 GPIO_Initure.Mode = GPIO_MODE_OUTPUT_PP; //推挽输出 GPIO_Initure.Pull = GPIO_PULLUP; //上拉 GPIO_Initure.Speed = GPIO_SPEED_HIGH; //高速 HAL_GPIO_Init(GPIOF, &GPIO_Initure); LCD_FSMC_Config(); //配置好FSMC就可以驱动液晶屏 lcd_id = ILI9341_Read_id(); //先读看看所接屏幕是不是9341驱动 if (lcd_id != 0x9341) //如果不是9341，读看看是不是1963驱动 { lcd_id = SSD1963_Read_id(); if (lcd_id == 0x5761) lcd_id = 0x1963; //SSD1963实际读出的ID是0x5761,为了直观，这边设置为1963 } if (lcd_id == 0X9341) //此驱动,设置写时序为最快 { FSMC_Bank1E->BWTR[6] &= ~(0XF << 0); //地址建立时间清零 FSMC_Bank1E->BWTR[6] &= ~(0XF << 8); //数据保存时间清零 FSMC_Bank1E->BWTR[6] |= 3 << 0; //地址建立时间为3个HCLK =18ns FSMC_Bank1E->BWTR[6] |= 2 << 8; //数据保存时间为6ns*3个HCLK=18ns } if (lcd_id == 0X9341) //9341初始化 { LCD_CMD = 0xCF; LCD_DATA = 0x00; LCD_DATA = 0xC1; LCD_DATA = 0X30; LCD_CMD = 0xED; LCD_DATA = 0x64; LCD_DATA = 0x03; LCD_DATA = 0X12; LCD_DATA = 0X81; LCD_CMD = 0xE8; LCD_DATA = 0x85; LCD_DATA = 0x10; LCD_DATA = 0x7A; LCD_CMD = 0xCB; LCD_DATA = 0x39; LCD_DATA = 0x2C; LCD_DATA = 0x00; LCD_DATA = 0x34; LCD_DATA = 0x02; LCD_CMD = 0xF7; LCD_DATA = 0x20; LCD_CMD = 0xEA; LCD_DATA = 0x00; LCD_DATA = 0x00; LCD_CMD = 0xC0; LCD_DATA = 0x1B; LCD_CMD = 0xC1; LCD_DATA = 0x01; LCD_CMD = 0xC5; LCD_DATA = 0x30; LCD_DATA = 0x30; LCD_CMD = 0xC7; LCD_DATA = 0XB7; LCD_CMD = 0x36; LCD_DATA = 0x48; LCD_CMD = 0x3A; LCD_DATA = 0x55; LCD_CMD = 0xB1; LCD_DATA = 0x00; LCD_DATA = 0x1A; LCD_CMD = 0xB6; LCD_DATA = 0x0A; LCD_DATA = 0xA2; LCD_CMD = 0xF2; LCD_DATA = 0x00; LCD_CMD = 0x26; LCD_DATA = 0x01; LCD_CMD = 0xE0; LCD_DATA = 0x0F; LCD_DATA = 0x2A; LCD_DATA = 0x28; LCD_DATA = 0x08; LCD_DATA = 0x0E; LCD_DATA = 0x08; LCD_DATA = 0x54; LCD_DATA = 0XA9; LCD_DATA = 0x43; LCD_DATA = 0x0A; LCD_DATA = 0x0F; LCD_DATA = 0x00; LCD_DATA = 0x00; LCD_DATA = 0x00; LCD_DATA = 0x00; LCD_CMD = 0XE1; LCD_DATA = 0x00; LCD_DATA = 0x15; LCD_DATA = 0x17; LCD_DATA = 0x07; LCD_DATA = 0x11; LCD_DATA = 0x06; LCD_DATA = 0x2B; LCD_DATA = 0x56; LCD_DATA = 0x3C; LCD_DATA = 0x05; LCD_DATA = 0x10; LCD_DATA = 0x0F; LCD_DATA = 0x3F; LCD_DATA = 0x3F; LCD_DATA = 0x0F; LCD_CMD = 0x2B; LCD_DATA = 0x00; LCD_DATA = 0x00; LCD_DATA = 0x01; LCD_DATA = 0x3f; LCD_CMD = 0x2A; LCD_DATA = 0x00; LCD_DATA = 0x00; LCD_DATA = 0x00; LCD_DATA = 0xef; LCD_CMD = 0x11; delay_ms(120); LCD_CMD = 0x29; LCD_BACK = 1; //点亮背光 } else if (lcd_id == 0X1963) { LCD_CMD = 0xE2; LCD_DATA = 0x1D; LCD_DATA = 0x02; LCD_DATA = 0x04; delay_us(100); LCD_CMD = 0xE0; LCD_DATA = 0x01; delay_ms(10); LCD_CMD = 0xE0; LCD_DATA = 0x03; delay_ms(12); LCD_CMD = 0x01; //软复位 delay_ms(10); LCD_CMD = 0xE6; LCD_DATA = 0x2F; LCD_DATA = 0xFF; LCD_DATA = 0xFF; LCD_CMD = 0xB0; LCD_DATA = 0x20; LCD_DATA = 0x00; LCD_DATA = (800 - 1) >> 8; //LCD水平像素设置 LCD_DATA = 800 - 1; LCD_DATA = (480 - 1) >> 8; //LCD垂直像素设置 LCD_DATA = 480 - 1; LCD_DATA = 0x00; //RGB序列 LCD_CMD = 0xB4; LCD_DATA = (800 + 46 + 210 - 1) >> 8; LCD_DATA = 800 + 46 + 210 - 1; LCD_DATA = 46 >> 8; LCD_DATA = 46; LCD_DATA = 0; LCD_DATA = 0x00; LCD_DATA = 0x00; LCD_DATA = 0x00; LCD_CMD = 0xB6; LCD_DATA = (480 + 23 + 22 - 1) >> 8; LCD_DATA = 480 + 23 + 22 - 1; LCD_DATA = 23 >> 8; LCD_DATA = 23; LCD_DATA = 21; LCD_DATA = 0x00; LCD_DATA = 0x00; LCD_CMD = 0xF0; LCD_DATA = 0x03; //SSD1963与MCU的接口为16bit LCD_CMD = 0x29; //开启显示 LCD_CMD = 0xD0; //设置自动白平衡DBC LCD_DATA = 0x00; LCD_CMD = 0xBE; //PWM输出 LCD_DATA = 0x05; //PWM频率 LCD_DATA = 0xFE; //PWM占空比 LCD_DATA = 0x01; LCD_DATA = 0x00; LCD_DATA = 0x00; LCD_DATA = 0x00; LCD_CMD = 0xB8; LCD_DATA = 0x03; LCD_DATA = 0x01; LCD_CMD = 0xBA; LCD_DATA = 0X01; //控制LCD方向 Ssd1963_Set_BackLight(255); //背光设置 } Set_Display_Mode(0); //初始化为竖屏 LCD_Clear(WHITE); //清屏白色 } /**************************************************************************** * 名 称: void LCD_Fill_onecolor(u16 sx,u16 sy,u16 ex,u16 ey,u16 color) 启*明@欣#欣 * 功 能：在指定区域内填充单个颜色 * 入口参数：(sx,sy),(ex,ey):填充矩形对角坐标 color:要填充的颜色 * 返回参数：无 * 说 明：区域大小为:(ex-sx+1)*(ey-sy+1) ?B ****************************************************************************/ void LCD_Fill_onecolor(u16 sx, u16 sy, u16 ex, u16 ey, u16 color) { u16 i, j; u16 nlen = 0; nlen = ex - sx + 1; for (i = sy; i <= ey; i++) { LCD_SetCursor(sx, i); //设置光标位置 LCD_WriteGRAM(); //开始写入GRAM for (j = 0; j < nlen; j++) LCD_DATA = color; //设置光标位置 } } /**************************************************************************** * 名 称: void LCD_Draw_Picture(u16 sx,u16 sy,u16 ex,u16 ey,u16 *color) * 功 能：在指定区域内画入图片 * 入口参数：(sx,sy),(ex,ey):填充矩形对角坐标 color:要填充的图片像素颜色数组 * 返回参数：无 * 说 明：区域大小为:(ex-sx+1)*(ey-sy+1) ?B ****************************************************************************/ void LCD_Draw_Picture(u16 sx, u16 sy, u16 ex, u16 ey, u16 *color) { u16 height, width; u16 i, j; width = ex - sx + 1; //得到图片的宽度 height = ey - sy + 1; //得到图片的高度 for (i = 0; i < height; i++) { LCD_SetCursor(sx, sy + i); //设置光标位置 LCD_WriteGRAM(); //开始写入GRAM for (j = 0; j < width; j++) LCD_DATA = color[i * height + j]; //写入颜色值 } } /**************************************************************************** * 名 称: void LCD_DisplayChar(u16 x,u16 y,u8 num,u8 size) * 功 能：在指定位置显示一个字符 * 入口参数：x,y:起始坐标 word:要显示的字符:abcdefg1234567890... size:字体大小 12/16/24 * 返回参数：无 * 说 明：该字模取模方向为先从左到右，再从上到下 低位在前 ?B ****************************************************************************/ void LCD_DisplayChar(u16 x, u16 y, u8 word, u8 size) { u8 bytenum, bytedata, a, b; u16 xmid = x; //存储初始X值(位置) if (size == 12) bytenum = 12; //从字库数组中可知道每种字体单个字符所占的字节数 else if (size == 16) bytenum = 16; else if (size == 24) bytenum = 48; else return; //其他字体退出 word = word - ' '; //字库数组是按ASCII表排列 //cfont.h中字库是从空格开始的 空格就是第一个元素 其他字符的ASCII码减去空格后就得到在数组中的偏移值(位置) for (b = 0; b < bytenum; b++) { if (size == 12) bytedata = char_1206[word][b]; //调用1206字体 else if (size == 16) bytedata = char_1608[word][b]; //调用1608字体 else if (size == 24) bytedata = char_2412[word][b]; //调用2412字体 for (a = 0; a < 8; a++) { if (bytedata & 0x01) LCD_Color_DrawPoint(x, y, BRUSH_COLOR); //由于子模是低位在前 所以先从低位判断 为1时显示画笔颜色 else LCD_Color_DrawPoint(x, y, BACK_COLOR); //0时显示背景颜色 bytedata >>= 1; //低位判断完 依次往高位判断 x++; //显示完一位 往下一位显示 if ((x - xmid) == size / 2) //x方向超出字体大小 如：16字体 实际是 08*16的点阵 故这边 size/2 { x = xmid; //从初始X位置在写下一行 y++; //上一行写完 从下一行再写 break; //跳出for(a=0;a<8;a++)循环 } } } } /**************************************************************************** * 名 称: void LCD_DisplayString(u16 x,u16 y,u8 size,u8 *p) * 功 能：显示字符串 * 入口参数：x,y:起点坐标 * size:字体大小 * *p:字符串起始地址 * 返回参数：无 * 说 明： ?B ****************************************************************************/ void LCD_DisplayString(u16 x, u16 y, u8 size, u8 *p) { while ((*p >= ' ') && (*p <= '~')) //只显示“ ”到“~”之间的字符 { LCD_DisplayChar(x, y, *p, size); x += size / 2; if (x >= lcd_width) break; p++; } } /**************************************************************************** * 名 称: void LCD_DisplayString(u16 x,u16 y,u8 size,u8 *p) * 功 能：显示自定义字符串 * 入口参数：x,y:起点坐标 * width,height:区域大小 * size:字体大小 * *p:字符串起始地址 * brushcolor：自定义画笔颜色 * backcolor： 自定义背景颜色 * 返回参数：无 * 说 明： ?B ****************************************************************************/ void LCD_DisplayString_color(u16 x, u16 y, u8 size, u8 *p, u16 brushcolor, u16 backcolor) { u16 bh_color, bk_color; bh_color = BRUSH_COLOR; //暂存画笔颜色 bk_color = BACK_COLOR; //暂存背景颜色 BRUSH_COLOR = brushcolor; BACK_COLOR = backcolor; LCD_DisplayString(x, y, size, p); BRUSH_COLOR = bh_color; //不改变系统颜色 BACK_COLOR = bk_color; } //a^n函数，返回值:a^n次方 u32 Counter_Power(u8 a, u8 n) { u32 mid = 1; while (n--) mid *= a; return mid; } /**************************************************************************** * 名 称: void LCD_DisplayNum(u16 x,u16 y,u32 num,u8 len,u8 size,u8 mode) * 功 能：在指定位置显示一串数字 * 入口参数：x,y:起点坐标 value:数值; len:长度(设置显示的位数) size:字体大小 mode: 0：高位为0不显示 1：高位为0根据len长度补显示几个0 * 返回参数：无 * 说 明： ?B ****************************************************************************/ void LCD_DisplayNum(u16 x, u16 y, u32 value, u8 len, u8 size, u8 mode) { u8 t, numtemp; u8 value_num; //数值总共几位数 u32 value_mid; value_mid = value; //计算位数时不影响要显示的数值大小 for (value_num = 0; value_mid > 0; value_num++) { value_mid /= 10; } //执行完for，就知道要显示的数值为几位数 if (value_num > len) //数值位数大于设置位数，即显示区域不够 显示错误 { LCD_DisplayString(x, y, size, (u8 *)"ERROR"); return; //退出函数 } else { for (t = 0; t < len; t++) { if (t < (len - value_num)) { if (mode) LCD_DisplayChar(x + (size / 2) * t, y, '0', size); else LCD_DisplayChar(x + (size / 2) * t, y, ' ', size); } else { numtemp = (value / Counter_Power(10, len - t - 1)) % 10; //取出各位数值 LCD_DisplayChar(x + (size / 2) * t, y, numtemp + '0', size); } } } } /**************************************************************************** * 名 称: void LCD_DisplayNum_color(u16 x,u16 y,u32 num,u8 len,u8 size,u8 mode) * 功 能：在指定位置显示一串自定义颜色的数字 启#明*欣&欣 * 入口参数：x,y:起点坐标 num:数值; len:长度(即要显示的位数) size:字体大小 mode: 0：高位为0不显示 1：高位为0显示0 brushcolor：自定义画笔颜色 backcolor： 自定义背景颜色 * 返回参数：无 * 说 明： ?B ****************************************************************************/ void LCD_DisplayNum_color(u16 x, u16 y, u32 num, u8 len, u8 size, u8 mode, u16 brushcolor, u16 backcolor) { u16 bh_color, bk_color; bh_color = BRUSH_COLOR; //暂存画笔颜色 bk_color = BACK_COLOR; //暂存背景颜色 BRUSH_COLOR = brushcolor; BACK_COLOR = backcolor; LCD_DisplayNum(x, y, num, len, size, mode); BRUSH_COLOR = bh_color; //不改变系统颜色 BACK_COLOR = bk_color; }