- delay_init();
- NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
- uart_init(115200);
- LED_Init();
- KEY_Init();
- LCD_Init();
- Adc_Init();
- TIM3_Init(1666,7199);
- W25QXX_Init();//初始化W25Q128
- my_mem_init(SRAMIN);//初始化内部内存池
- exfuns_init();//为fatfs相关变量申请内存
- f_mount(fs[0],"0:",1);//挂载SD卡
- f_mount(fs[1],"1:",1);//挂载FLASH.
- LCD_Display_Dir(1);
主控制器LCD显示(显示简单的做了一下,另外照片画质太差请见谅)
ADC采样值左侧显示,并以图形显示当前所处档位。
LED状态右侧显示,LED灭右侧框内为白色,LED闪烁框内会有绿色方块闪烁,LED常亮对应位置绿色方块常亮。
无法显示汉字,增加字库之后:
ADC初始化:
- void Adc_Init(void)
- {
- ADC_InitTypeDef ADC_InitStructure;
- GPIO_InitTypeDef GPIO_InitStructure;
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA |RCC_APB2Periph_ADC1 , ENABLE ); //使能ADC1通道时钟
- RCC_ADCCLKConfig(RCC_PCLK2_Div6); //设置ADC分频因子6 72M/6=12,ADC最大时间不能超过14M
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN; //模拟输入引脚
- GPIO_Init(GPIOA, &GPIO_InitStructure);
- ADC_DeInit(ADC1); //复位ADC1,将外设 ADC1 的全部寄存器重设为缺省值
- ADC_InitStructure.ADC_Mode = ADC_Mode_Independent; //ADC工作模式:ADC1和ADC2工作在独立模式
- ADC_InitStructure.ADC_ScanConvMode = DISABLE; //模数转换工作在单通道模式
- ADC_InitStructure.ADC_ContinuousConvMode = DISABLE; //模数转换工作在单次转换模式
- ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None; //转换由软件而不是外部触发启动
- ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right; //ADC数据右对齐
- ADC_InitStructure.ADC_NbrOfChannel = 1; //顺序进行规则转换的ADC通道的数目
- ADC_Init(ADC1, &ADC_InitStructure); //根据ADC_InitStruct中指定的参数初始化外设ADCx的寄存器
-
- ADC_Cmd(ADC1, ENABLE); //使能指定的ADC1
- ADC_ResetCalibration(ADC1); //使能复位校准
- while(ADC_GetResetCalibrationStatus(ADC1)); //等待复位校准结束
- ADC_StartCalibration(ADC1); //开启AD校准
- while(ADC_GetCalibrationStatus(ADC1)); //等待校准结束
- // ADC_SoftwareStartConvCmd(ADC1, ENABLE); //使能指定的ADC1的软件转换启动功能
- }
直接在主函数中循环读取AD值:
- Adc_Val=Get_Adc_Average(ADC_Channel_1,100);
将AD值显示在LCD上,并计算出相应的长度,以图形显示在屏幕上:
- LCD_ShowxNum(150,140,Adc_Val,4,24,0);//显示ADC的值
- Adc_X = 1.0*261 * Adc_Val / 4095;
- LCD_Fill(82,212,82+Adc_X,338,GREEN);
- LCD_Fill(82+Adc_X,212,343,338,WHITE);
定时器初始化:
因此设计对时间要求不高,刷屏直接放在中断中进行。
- void TIM3_Init(void)
- {
- TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
- NVIC_InitTypeDef NVIC_InitStructure;
-
- RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
-
- TIM_TimeBaseStructure.TIM_Period = 1666;
- TIM_TimeBaseStructure.TIM_Prescaler =7199;
- TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
- TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
- TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
- TIM_ITConfig(TIM3,TIM_IT_Update,ENABLE );
- NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;
- NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
- NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
- NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
- NVIC_Init(&NVIC_InitStructure);
- TIM_Cmd(TIM3, DISABLE);
- }
通过AD采样值控制LED状态:- if(Adc_Val<1365)
- {
- TIM_Cmd(TIM3, DISABLE);
- LED2=1;
- LCD_Fill(502,177,673,353,WHITE);
- }
- else if(Adc_Val<2730)
- {
- TIM_Cmd(TIM3, ENABLE);
- }
- else
- {
- TIM_Cmd(TIM3, DISABLE);
- LED2=0;
- LCD_Fill(502,177,673,353,GREEN);
- }
LCD初始化及驱动代码:- //LCD的画笔颜色和背景色
- u16 POINT_COLOR=0x0000; //画笔颜色
- u16 BACK_COLOR=0xFFFF; //背景色
-
- //管理LCD重要参数
- //默认为竖屏
- _lcd_dev lcddev;
-
- //写寄存器函数
- //regval:寄存器值
- void LCD_WR_REG(u16 regval)
- {
- LCD->LCD_REG=regval;//写入要写的寄存器序号
- }
- //写LCD数据
- //data:要写入的值
- void LCD_WR_DATA(u16 data)
- {
- LCD->LCD_RAM=data;
- }
- //读LCD数据
- //返回值:读到的值
- u16 LCD_RD_DATA(void)
- {
- vu16 ram; //防止被优化
- ram=LCD->LCD_RAM;
- return ram;
- }
- //写寄存器
- //LCD_Reg:寄存器地址
- //LCD_RegValue:要写入的数据
- void LCD_WriteReg(u16 LCD_Reg,u16 LCD_RegValue)
- {
- LCD->LCD_REG = LCD_Reg;
- LCD->LCD_RAM = LCD_RegValue;
- }
- //读寄存器
- //LCD_Reg:寄存器地址
- //返回值:读到的数据
- u16 LCD_ReadReg(u16 LCD_Reg)
- {
- LCD_WR_REG(LCD_Reg);
- delay_us(5);
- return LCD_RD_DATA();
- }
- //开始写GRAM
- void LCD_WriteRAM_Prepare(void)
- {
- LCD->LCD_REG=lcddev.wramcmd;
- }
- //LCD写GRAM
- //RGB_Code:颜色值
- void LCD_WriteRAM(u16 RGB_Code)
- {
- LCD->LCD_RAM = RGB_Code;//写十六位GRAM
- }
- //从ILI93xx读出的数据为GBR格式,而我们写入的时候为RGB格式。
- //通过该函数转换
- //c:GBR格式的颜色值
- //返回值:RGB格式的颜色值
- u16 LCD_BGR2RGB(u16 c)
- {
- u16 r,g,b,rgb;
- b=(c>>0)&0x1f;
- g=(c>>5)&0x3f;
- r=(c>>11)&0x1f;
- rgb=(b<<11)+(g<<5)+(r<<0);
- return(rgb);
- }
- //当mdk -O1时间优化时需要设置
- //延时i
- void opt_delay(u8 i)
- {
- while(i--);
- }
- //读取个某点的颜色值
- //x,y:坐标
- //返回值:此点的颜色
- u16 LCD_ReadPoint(u16 x,u16 y)
- {
- u16 r=0,g=0,b=0;
- if(x>=lcddev.width||y>=lcddev.height)
- return 0;
- LCD_SetCursor(x,y);
- LCD_WR_REG(0X2E);
- r=LCD_RD_DATA();
- opt_delay(2);
- r=LCD_RD_DATA();
- opt_delay(2);
- b=LCD_RD_DATA();
- g=r&0XFF;
- g<<=8;
- return (((r>>11)<<11)|((g>>10)<<5)|(b>>11));
- }
- //LCD开启显示
- void LCD_DisplayOn(void)
- {
- LCD_WR_REG(0X29);
- }
- //LCD关闭显示
- void LCD_DisplayOff(void)
- {
- LCD_WR_REG(0X28);
- }
- //设置光标位置
- //Xpos:横坐标
- //Ypos:纵坐标
- void LCD_SetCursor(u16 Xpos, u16 Ypos)
- {
- LCD_WR_REG(lcddev.setxcmd);
- LCD_WR_DATA(Xpos>>8);
- LCD_WR_DATA(Xpos&0XFF);
- LCD_WR_REG(lcddev.setycmd);
- LCD_WR_DATA(Ypos>>8);
- LCD_WR_DATA(Ypos&0XFF);
- }
- //设置LCD的自动扫描方向
- void LCD_Scan_Dir(u8 dir)
- {
- u16 regval=0;
- u16 dirreg=0;
- u16 temp;
- switch(dir)
- {
- case L2R_U2D://从左到右,从上到下
- regval|=(0<<7)|(0<<6)|(0<<5);
- break;
- case L2R_D2U://从左到右,从下到上
- regval|=(1<<7)|(0<<6)|(0<<5);
- break;
- case R2L_U2D://从右到左,从上到下
- regval|=(0<<7)|(1<<6)|(0<<5);
- break;
- case R2L_D2U://从右到左,从下到上
- regval|=(1<<7)|(1<<6)|(0<<5);
- break;
- case U2D_L2R://从上到下,从左到右
- regval|=(0<<7)|(0<<6)|(1<<5);
- break;
- case U2D_R2L://从上到下,从右到左
- regval|=(0<<7)|(1<<6)|(1<<5);
- break;
- case D2U_L2R://从下到上,从左到右
- regval|=(1<<7)|(0<<6)|(1<<5);
- break;
- case D2U_R2L://从下到上,从右到左
- regval|=(1<<7)|(1<<6)|(1<<5);
- break;
- }
- dirreg=0X36;
- LCD_WriteReg(dirreg,regval);
- if(regval&0X20)
- {
- if(lcddev.width<lcddev.height)//交换X,Y
- {
- temp=lcddev.width;
- lcddev.width=lcddev.height;
- lcddev.height=temp;
- }
- }
- else
- {
- if(lcddev.width>lcddev.height)//交换X,Y
- {
- temp=lcddev.width;
- lcddev.width=lcddev.height;
- lcddev.height=temp;
- }
- }
- LCD_WR_REG(lcddev.setxcmd);
- LCD_WR_DATA(0);LCD_WR_DATA(0);
- LCD_WR_DATA((lcddev.width-1)>>8);
- LCD_WR_DATA((lcddev.width-1)&0XFF);
- LCD_WR_REG(lcddev.setycmd);
- LCD_WR_DATA(0);LCD_WR_DATA(0);
- LCD_WR_DATA((lcddev.height-1)>>8);
- LCD_WR_DATA((lcddev.height-1)&0XFF);
- }
- //画点
- //x,y:坐标
- //POINT_COLOR:此点的颜色
- void LCD_DrawPoint(u16 x,u16 y)
- {
- LCD_SetCursor(x,y);
- LCD_WriteRAM_Prepare();
- LCD->LCD_RAM=POINT_COLOR;
- }
- //快速画点
- //x,y:坐标
- //color:颜色
- void LCD_Fast_DrawPoint(u16 x,u16 y,u16 color)
- {
- LCD_WR_REG(lcddev.setxcmd);
- LCD_WR_DATA(x>>8);
- LCD_WR_DATA(x&0XFF);
- LCD_WR_REG(lcddev.setycmd);
- LCD_WR_DATA(y>>8);
- LCD_WR_DATA(y&0XFF);
- LCD->LCD_REG=lcddev.wramcmd;
- LCD->LCD_RAM=color;
- }
- //SSD1963 背光设置
- //pwm:背光等级,0~100.越大越亮.
- void LCD_SSD_BackLightSet(u8 pwm)
- {
- LCD_WR_REG(0xBE); //配置PWM输出
- LCD_WR_DATA(0x05); //1设置PWM频率
- LCD_WR_DATA(pwm*2.55);//2设置PWM占空比
- LCD_WR_DATA(0x01); //3设置C
- LCD_WR_DATA(0xFF); //4设置D
- LCD_WR_DATA(0x00); //5设置E
- LCD_WR_DATA(0x00); //6设置F
- }
- //设置LCD显示方向
- //dir:0,竖屏;1,横屏
- void LCD_Display_Dir(u8 dir)
- {
- if(dir==0) //竖屏
- {
- lcddev.dir=0; //竖屏
- lcddev.width=240;
- lcddev.height=320;
- lcddev.wramcmd=0X2C;
- lcddev.setxcmd=0X2A;
- lcddev.setycmd=0X2B;
- }
- else //横屏
- {
- lcddev.dir=1;
- lcddev.width=320;
- lcddev.height=240;
- lcddev.wramcmd=0X2C;
- lcddev.setxcmd=0X2A;
- lcddev.setycmd=0X2B;
- }
- LCD_Scan_Dir(DFT_SCAN_DIR); //默认扫描方向
- }
- //设置窗口,并自动设置画点坐标到窗口左上角(sx,sy).
- //sx,sy:窗口起始坐标(左上角)
- //width,height:窗口宽度和高度,必须大于0!!
- //窗体大小:width*height.
- void LCD_Set_Window(u16 sx,u16 sy,u16 width,u16 height)
- {
- u8 hsareg,heareg,vsareg,veareg;
- u16 hsaval,heaval,vsaval,veaval;
- u16 twidth,theight;
- twidth=sx+width-1;
- theight=sy+height-1;
- LCD_WR_REG(lcddev.setxcmd);
- LCD_WR_DATA(sx>>8);
- LCD_WR_DATA(sx&0XFF);
- LCD_WR_DATA(twidth>>8);
- LCD_WR_DATA(twidth&0XFF);
- LCD_WR_REG(lcddev.setycmd);
- LCD_WR_DATA(sy>>8);
- LCD_WR_DATA(sy&0XFF);
- LCD_WR_DATA(theight>>8);
- LCD_WR_DATA(theight&0XFF);
- }
- //初始化lcd
- //该初始化函数可以初始化各种ILI93XX液晶,但是其他函数是基于ILI9320的!!!
- //在其他型号的驱动芯片上没有测试!
- void LCD_Init(void)
- {
- GPIO_InitTypeDef GPIO_InitStructure;
- FSMC_NORSRAMInitTypeDef FSMC_NORSRAMInitStructure;
- FSMC_NORSRAMTimingInitTypeDef readWriteTiming;
- FSMC_NORSRAMTimingInitTypeDef writeTiming;
-
- RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC,ENABLE); //使能FSMC时钟
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB|RCC_APB2Periph_GPIOD|RCC_APB2Periph_GPIOE|RCC_APB2Periph_GPIOG,ENABLE);//使能PORTB,D,E,G以及AFIO复用功能时钟
-
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0; //PB0 推挽输出 背光
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推挽输出
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_Init(GPIOB, &GPIO_InitStructure);
-
- //PORTD复用推挽输出
- GPIO_InitStructure.GPIO_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; // //PORTD复用推挽输出
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_Init(GPIOD, &GPIO_InitStructure);
-
- //PORTE复用推挽输出
- GPIO_InitStructure.GPIO_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; // //PORTD复用推挽输出
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_Init(GPIOE, &GPIO_InitStructure);
- // //PORTG12复用推挽输出 A0
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_12; // //PORTD复用推挽输出
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_Init(GPIOG, &GPIO_InitStructure);
- readWriteTiming.FSMC_AddressSetupTime = 0x01; //地址建立时间(ADDSET)为2个HCLK 1/36M=27ns
- readWriteTiming.FSMC_AddressHoldTime = 0x00; //地址保持时间(ADDHLD)模式A未用到
- readWriteTiming.FSMC_DataSetupTime = 0x0f; // 数据保存时间为16个HCLK,因为液晶驱动IC的读数据的时候,速度不能太快,尤其对1289这个IC。
- readWriteTiming.FSMC_BusTurnAroundDuration = 0x00;
- readWriteTiming.FSMC_CLKDivision = 0x00;
- readWriteTiming.FSMC_DataLatency = 0x00;
- readWriteTiming.FSMC_AccessMode = FSMC_AccessMode_A; //模式A
-
- writeTiming.FSMC_AddressSetupTime = 0x00; //地址建立时间(ADDSET)为1个HCLK
- writeTiming.FSMC_AddressHoldTime = 0x00; //地址保持时间(A
- writeTiming.FSMC_DataSetupTime = 0x03; ////数据保存时间为4个HCLK
- writeTiming.FSMC_BusTurnAroundDuration = 0x00;
- writeTiming.FSMC_CLKDivision = 0x00;
- writeTiming.FSMC_DataLatency = 0x00;
- writeTiming.FSMC_AccessMode = FSMC_AccessMode_A; //模式A
-
- FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM4;// 这里我们使用NE4 ,也就对应BTCR[6],[7]。
- FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable; // 不复用数据地址
- FSMC_NORSRAMInitStructure.FSMC_MemoryType =FSMC_MemoryType_SRAM;// FSMC_MemoryType_SRAM; //SRAM
- FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;//存储器数据宽度为16bit
- FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode =FSMC_BurstAccessMode_Disable;// FSMC_BurstAccessMode_Disable;
- FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
- FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait=FSMC_AsynchronousWait_Disable;
- FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
- FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
- FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable; // 存储器写使能
- FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
- FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Enable; // 读写使用不同的时序
- FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
- FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &readWriteTiming; //读写时序
- FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &writeTiming; //写时序
- FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure); //初始化FSMC配置
- FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM4, ENABLE); // 使能BANK1
-
- delay_ms(50); // delay 50 ms
-
- LCD_WR_REG(0xCF);
- LCD_WR_DATA(0x00);
- LCD_WR_DATA(0xC1);
- LCD_WR_DATA(0X30);
- LCD_WR_REG(0xED);
- LCD_WR_DATA(0x64);
- LCD_WR_DATA(0x03);
- LCD_WR_DATA(0X12);
- LCD_WR_DATA(0X81);
- LCD_WR_REG(0xE8);
- LCD_WR_DATA(0x85);
- LCD_WR_DATA(0x10);
- LCD_WR_DATA(0x7A);
- LCD_WR_REG(0xCB);
- LCD_WR_DATA(0x39);
- LCD_WR_DATA(0x2C);
- LCD_WR_DATA(0x00);
- LCD_WR_DATA(0x34);
- LCD_WR_DATA(0x02);
- LCD_WR_REG(0xF7);
- LCD_WR_DATA(0x20);
- LCD_WR_REG(0xEA);
- LCD_WR_DATA(0x00);
- LCD_WR_DATA(0x00);
- LCD_WR_REG(0xC0); //Power control
- LCD_WR_DATA(0x1B); //VRH[5:0]
- LCD_WR_REG(0xC1); //Power control
- LCD_WR_DATA(0x01); //SAP[2:0];BT[3:0]
- LCD_WR_REG(0xC5); //VCM control
- LCD_WR_DATA(0x30); //3F
- LCD_WR_DATA(0x30); //3C
- LCD_WR_REG(0xC7); //VCM control2
- LCD_WR_DATA(0XB7);
- LCD_WR_REG(0x36); // Memory Access Control
- LCD_WR_DATA(0x48);
- LCD_WR_REG(0x3A);
- LCD_WR_DATA(0x55);
- LCD_WR_REG(0xB1);
- LCD_WR_DATA(0x00);
- LCD_WR_DATA(0x1A);
- LCD_WR_REG(0xB6); // Display Function Control
- LCD_WR_DATA(0x0A);
- LCD_WR_DATA(0xA2);
- LCD_WR_REG(0xF2); // 3Gamma Function Disable
- LCD_WR_DATA(0x00);
- LCD_WR_REG(0x26); //Gamma curve selected
- LCD_WR_DATA(0x01);
- LCD_WR_REG(0xE0); //Set Gamma
- LCD_WR_DATA(0x0F);
- LCD_WR_DATA(0x2A);
- LCD_WR_DATA(0x28);
- LCD_WR_DATA(0x08);
- LCD_WR_DATA(0x0E);
- LCD_WR_DATA(0x08);
- LCD_WR_DATA(0x54);
- LCD_WR_DATA(0XA9);
- LCD_WR_DATA(0x43);
- LCD_WR_DATA(0x0A);
- LCD_WR_DATA(0x0F);
- LCD_WR_DATA(0x00);
- LCD_WR_DATA(0x00);
- LCD_WR_DATA(0x00);
- LCD_WR_DATA(0x00);
- LCD_WR_REG(0XE1); //Set Gamma
- LCD_WR_DATA(0x00);
- LCD_WR_DATA(0x15);
- LCD_WR_DATA(0x17);
- LCD_WR_DATA(0x07);
- LCD_WR_DATA(0x11);
- LCD_WR_DATA(0x06);
- LCD_WR_DATA(0x2B);
- LCD_WR_DATA(0x56);
- LCD_WR_DATA(0x3C);
- LCD_WR_DATA(0x05);
- LCD_WR_DATA(0x10);
- LCD_WR_DATA(0x0F);
- LCD_WR_DATA(0x3F);
- LCD_WR_DATA(0x3F);
- LCD_WR_DATA(0x0F);
- LCD_WR_REG(0x2B);
- LCD_WR_DATA(0x00);
- LCD_WR_DATA(0x00);
- LCD_WR_DATA(0x01);
- LCD_WR_DATA(0x3f);
- LCD_WR_REG(0x2A);
- LCD_WR_DATA(0x00);
- LCD_WR_DATA(0x00);
- LCD_WR_DATA(0x00);
- LCD_WR_DATA(0xef);
- LCD_WR_REG(0x11); //Exit Sleep
- delay_ms(120);
- LCD_WR_REG(0x29); //display on
-
- LCD_Display_Dir(0); //默认为竖屏
- LCD_LED=1; //点亮背光
- LCD_Clear(WHITE);
- }
- //清屏函数
- //color:要清屏的填充色
- void LCD_Clear(u16 color)
- {
- u32 index=0;
- u32 totalpoint=lcddev.width;
- totalpoint*=lcddev.height; //得到总点数
- if((lcddev.id==0X6804)&&(lcddev.dir==1))//6804横屏的时候特殊处理
- {
- lcddev.dir=0;
- lcddev.setxcmd=0X2A;
- lcddev.setycmd=0X2B;
- LCD_SetCursor(0x00,0x0000); //设置光标位置
- lcddev.dir=1;
- lcddev.setxcmd=0X2B;
- lcddev.setycmd=0X2A;
- }
- else
- LCD_SetCursor(0x00,0x0000); //设置光标位置
- LCD_WriteRAM_Prepare(); //开始写入GRAM
- for(index=0;index<totalpoint;index++)
- {
- LCD->LCD_RAM=color;
- }
- }
- //在指定区域内填充单个颜色
- //(sx,sy),(ex,ey):填充矩形对角坐标,区域大小为:(ex-sx+1)*(ey-sy+1)
- //color:要填充的颜色
- void LCD_Fill(u16 sx,u16 sy,u16 ex,u16 ey,u16 color)
- {
- u16 i,j;
- u16 xlen=0;
- u16 temp;
- xlen=ex-sx+1;
- for(i=sy;i<=ey;i++)
- {
- LCD_SetCursor(sx,i); //设置光标位置
- LCD_WriteRAM_Prepare(); //开始写入GRAM
- for(j=0;j<xlen;j++)
- LCD->LCD_RAM=color; //显示颜色
- }
-
- }
- //在指定区域内填充指定颜色块
- //(sx,sy),(ex,ey):填充矩形对角坐标,区域大小为:(ex-sx+1)*(ey-sy+1)
- //color:要填充的颜色
- void LCD_Color_Fill(u16 sx,u16 sy,u16 ex,u16 ey,u16 *color)
- {
- u16 height,width;
- u16 i,j;
- width=ex-sx+1; //得到填充的宽度
- height=ey-sy+1; //高度
- for(i=0;i<height;i++)
- {
- LCD_SetCursor(sx,sy+i); //设置光标位置
- LCD_WriteRAM_Prepare(); //开始写入GRAM
- for(j=0;j<width;j++)
- LCD->LCD_RAM=color[i*width+j];//写入数据
- }
- }
- //画线
- //x1,y1:起点坐标
- //x2,y2:终点坐标
- void LCD_DrawLine(u16 x1, u16 y1, u16 x2, u16 y2)
- {
- u16 t;
- int xerr=0,yerr=0,delta_x,delta_y,distance;
- int incx,incy,uRow,uCol;
- delta_x=x2-x1; //计算坐标增量
- delta_y=y2-y1;
- uRow=x1;
- uCol=y1;
- if(delta_x>0)
- incx=1; //设置单步方向
- else if(delta_x==0)
- incx=0;//垂直线
- else
- {
- incx=-1;
- delta_x=-delta_x;
- }
- if(delta_y>0)
- incy=1;
- else if(delta_y==0)
- incy=0;//水平线
- else
- {
- incy=-1;
- delta_y=-delta_y;
- }
- if( delta_x>delta_y)
- distance=delta_x; //选取基本增量坐标轴
- else
- distance=delta_y;
- for(t=0;t<=distance+1;t++ )//画线输出
- {
- LCD_DrawPoint(uRow,uCol);//画点
- xerr+=delta_x ;
- yerr+=delta_y ;
- if(xerr>distance)
- {
- xerr-=distance;
- uRow+=incx;
- }
- if(yerr>distance)
- {
- yerr-=distance;
- uCol+=incy;
- }
- }
- }
- //画矩形
- //(x1,y1),(x2,y2):矩形的对角坐标
- void LCD_DrawRectangle(u16 x1, u16 y1, u16 x2, u16 y2)
- {
- LCD_DrawLine(x1,y1,x2,y1);
- LCD_DrawLine(x1,y1,x1,y2);
- LCD_DrawLine(x1,y2,x2,y2);
- LCD_DrawLine(x2,y1,x2,y2);
- }
- //在指定位置画一个指定大小的圆
- //(x,y):中心点
- //r :半径
- void LCD_Draw_Circle(u16 x0,u16 y0,u8 r)
- {
- int a,b;
- int di;
- a=0;b=r;
- di=3-(r<<1); //判断下个点位置的标志
- while(a<=b)
- {
- LCD_DrawPoint(x0+a,y0-b); //5
- LCD_DrawPoint(x0+b,y0-a); //0
- LCD_DrawPoint(x0+b,y0+a); //4
- LCD_DrawPoint(x0+a,y0+b); //6
- LCD_DrawPoint(x0-a,y0+b); //1
- LCD_DrawPoint(x0-b,y0+a);
- LCD_DrawPoint(x0-a,y0-b); //2
- LCD_DrawPoint(x0-b,y0-a); //7
- a++;
- //使用Bresenham算法画圆
- if(di<0)
- di +=4*a+6;
- else
- {
- di+=10+4*(a-b);
- b--;
- }
- }
- }
- //在指定位置显示一个字符
- //x,y:起始坐标
- //num:要显示的字符:" "--->"~"
- //size:字体大小 12/16/24
- //mode:叠加方式(1)还是非叠加方式(0)
- void LCD_ShowChar(u16 x,u16 y,u8 num,u8 size,u8 mode)
- {
- u8 temp,t1,t;
- u16 y0=y;
- u8 csize=(size/8+((size%8)?1:0))*(size/2); //得到字体一个字符对应点阵集所占的字节数
- num=num-' ';//得到偏移后的值(ASCII字库是从空格开始取模,所以-' '就是对应字符的字库)
- for(t=0;t<csize;t++)
- {
- if(size==12)
- temp=asc2_1206[num][t]; //调用1206字体
- else if(size==16)
- temp=asc2_1608[num][t]; //调用1608字体
- else if(size==24)
- temp=asc2_2412[num][t]; //调用2412字体
- else
- return; //没有的字库
- for(t1=0;t1<8;t1++)
- {
- if(temp&0x80)
- LCD_Fast_DrawPoint(x,y,POINT_COLOR);
- else if(mode==0)
- LCD_Fast_DrawPoint(x,y,BACK_COLOR);
- temp<<=1;
- y++;
- if(y>=lcddev.height)
- return; //超区域了
- if((y-y0)==size)
- {
- y=y0;
- x++;
- if(x>=lcddev.width)
- return; //超区域了
- break;
- }
- }
- }
- }
- //m^n函数
- //返回值:m^n次方.
- u32 LCD_Pow(u8 m,u8 n)
- {
- u32 result=1;
- while(n--)
- result*=m;
- return result;
- }
- //显示数字,高位为0,则不显示
- //x,y :起点坐标
- //len :数字的位数
- //size:字体大小
- //color:颜色
- //num:数值(0~4294967295);
- void LCD_ShowNum(u16 x,u16 y,u32 num,u8 len,u8 size)
- {
- u8 t,temp;
- u8 enshow=0;
- for(t=0;t<len;t++)
- {
- temp=(num/LCD_Pow(10,len-t-1))%10;
- if(enshow==0&&t<(len-1))
- {
- if(temp==0)
- {
- LCD_ShowChar(x+(size/2)*t,y,' ',size,0);
- continue;
- }
- else
- enshow=1;
-
- }
- LCD_ShowChar(x+(size/2)*t,y,temp+'0',size,0);
- }
- }
- //显示数字,高位为0,还是显示
- //x,y:起点坐标
- //num:数值(0~999999999);
- //len:长度(即要显示的位数)
- //size:字体大小
- //mode:
- //[7]:0,不填充;1,填充0.
- //[6:1]:保留
- //[0]:0,非叠加显示;1,叠加显示.
- void LCD_ShowxNum(u16 x,u16 y,u32 num,u8 len,u8 size,u8 mode)
- {
- u8 t,temp;
- u8 enshow=0;
- for(t=0;t<len;t++)
- {
- temp=(num/LCD_Pow(10,len-t-1))%10;
- if(enshow==0&&t<(len-1))
- {
- if(temp==0)
- {
- if(mode&0X80)
- LCD_ShowChar(x+(size/2)*t,y,'0',size,mode&0X01);
- else
- LCD_ShowChar(x+(size/2)*t,y,' ',size,mode&0X01);
- continue;
- }
- else
- enshow=1;
- }
- LCD_ShowChar(x+(size/2)*t,y,temp+'0',size,mode&0X01);
- }
- }
- //显示字符串
- //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
- void LCD_ShowString(u16 x,u16 y,u16 width,u16 height,u8 size,u8 *p)
- {
- u8 x0=x;
- width+=x;
- height+=y;
- while((*p<='~')&&(*p>=' '))//判断是不是非法字符!
- {
- if(x>=width)
- {
- x=x0;
- y+=size;
- }
- if(y>=height)
- break;//退出
- LCD_ShowChar(x,y,*p,size,0);
- x+=size/2;
- p++;
- }
- }
主控制器较为简单,至此功能基本完成。