东软载波单片机HR8P506驱动TFT SPI串口屏显示

1、【1】打开Keil uVision猱蝰逾鸾5建立好相应的工程项目，添加相应的文件和头文件路径，在建立工程过程中需要使吹涡皋陕用Keil插件，可到官网去下载，亦可联系我。【2】.初始化SPI GPIO配置。SPI_MOSI、SPI_MISO、SPI_SCK、SPI_CS配置为复用输出模式，SPI_CS亦可配置为普通输出模式。若是使用模拟SPI方式直接配置为普通模式输出即可。#define TFT_SPI0_MOSI_Pin GPIO_Pin_A13#define TFT_SPI0_MISO_Pin GPIO_Pin_A12#define TFT_SPI0_SCK_Pin GPIO_Pin_A11#define TFT_SPI0_CS_Pin GPIO_Pin_A10static void vTFT_SPI0_GPIO_Configuration(void){ GPIO_InitSettingType GPIO_InitStructure; GPIO_InitStructure.Signal = GPIO_Pin_Signal_Digital; //Digital Pin GPIO_InitStructure.Dir = GPIO_Direction_Output; //Output mode GPIO_InitStructure.Func = GPIO_Reuse_Func3; //Reuse functio3 GPIO_InitStructure.ODE = GPIO_ODE_Output_Disable; //Open drain disable GPIO_InitStructure.DS = GPIO_DS_Output_Strong; //Strong output GPIO_InitStructure.PUE = GPIO_PUE_Input_Disable; //Pull up disable GPIO_InitStructure.PDE = GPIO_PDE_Input_Disable; //Pull Down disable GPIO_Init(TFT_SPI0_MISO_Pin, &GPIO_InitStructure); //Init TFT_SPI0_MISO_Pin GPIO_Init(TFT_SPI0_MOSI_Pin, &GPIO_InitStructure); //Init TFT_SPI0_MOSI_Pin GPIO_Init(TFT_SPI0_SCK_Pin, &GPIO_InitStructure); //Init TFT_SPI0_SCK_Pin GPIO_InitStructure.Signal = GPIO_Pin_Signal_Digital; //Digital Pin GPIO_InitStructure.Dir = GPIO_Direction_Output; //Output mode GPIO_InitStructure.Func = GPIO_Reuse_Func0; //Reuse functio0 GPIO_InitStructure.ODE = GPIO_ODE_Output_Disable; //Open drain disable GPIO_InitStructure.DS = GPIO_DS_Output_Strong; //Strong output GPIO_InitStructure.PUE = GPIO_PUE_Input_Disable; //Pull up disable GPIO_InitStructure.PDE = GPIO_PDE_Input_Disable; //Pull Down disable GPIO_Init(TFT_SPI0_CS_Pin, &GPIO_InitStructure); //Init TFT_SPI0_CS_Pin}【3】配置SPI。SPI频率、数据格式、通讯模式、发送帧位宽、延时接收使能、发送间隔使能、发送间隔周期。若使用模拟SPI方式此步骤可以忽略，最后初始化SPI。static void vTFT_SPI0_Configuration(void){ SPI_InitStruType SPI_InitStructure; SPI_InitStructure.SPI_Freq = 10000000; //SPI frequency SPI_InitStructure.SPI_Df = SPI_FallSendRiseRec; //Data Rise Send Fall Recieve SPI_InitStructure.SPI_Mode = SPI_Mode_Master; //Work mode SPI_InitStructure.SPI_DW = 7; //Data bit width SPI_InitStructure.SPI_DelayRec = Disable; //Delay recieve SPI_InitStructure.SPI_DelaySend = Disable; //Delay send SPI_InitStructure.SPI_SendDelayPeroid = 0; //Delay send peroid SPI_Init(SPI0, &SPI_InitStructure); //Init SPI0 SPI0_Enable(); //SPI0 enable }void vTFT_SPI0_Initialization(void){ vTFT_SPI0_GPIO_Configuration(); vTFT_SPI0_Configuration();}【4】配置TFT GPIO。TFT_RESET、TFT_RS配置为普通模式输出。#define TFT_RESET_Pin GPIO_Pin_A15#define TFT_RS_Pin GPIO_Pin_A14static void vTFT_GPIO_Configuration(void){ GPIO_InitSettingType GPIO_InitStructure; GPIO_InitStructure.Signal = GPIO_Pin_Signal_Digital; //Digital Pin GPIO_InitStructure.Dir = GPIO_Direction_Output; //Output mode GPIO_InitStructure.Func = GPIO_Reuse_Func0; //Reuse function 0 GPIO_InitStructure.ODE = GPIO_ODE_Output_Disable; //Open drain disable GPIO_InitStructure.DS = GPIO_DS_Output_Normal; //Normal Output GPIO_InitStructure.PUE = GPIO_PUE_Input_Disable; //Pull up disable GPIO_InitStructure.PDE = GPIO_PDE_Input_Disable; //Pull Down disable GPIO_Init(TFT_RESET_Pin, &GPIO_InitStructure); //Init TFT_RESET_Pin GPIO_Init(TFT_RS_Pin, &GPIO_InitStructure); //Init TFT_RS_Pin}

2、【1】编写写指令、写数据函数，这两个函数是最核心的函数。若使用模拟SPI方式，重点也是修改这两个函数。#define TFT_CS_SET() GPIO_SetBit(TFT_SPI0_CS_Pin)#define TFT_CS_CLR() GPIO_ResetBit(TFT_SPI0_CS_Pin)#define TFT_RS_SET() GPIO_SetBit(TFT_RS_Pin)#define TFT_RS_CLR() GPIO_ResetBit(TFT_RS_Pin)写字节命令函数void vTFT_WriteByte_Command(u8 cmd){ TFT_CS_CLR(); TFT_RS_CLR(); SPI_SendByte(SPI0, cmd); while(SPI_GetStatus(SPI0, SPI_STA_IDLE) == RESET); TFT_CS_SET();}写字节数据函数void vTFT_WriteByte_Data(u8 dat){ TFT_CS_CLR(); TFT_RS_SET(); SPI_SendByte(SPI0, dat); while(SPI_GetStatus(SPI0, SPI_STA_IDLE) == RESET); TFT_CS_SET();}写u16数据函数void vTFT_Write_Data(u16 dat){ TFT_CS_CLR(); TFT_RS_SET(); SPI_SendByte(SPI0, (u8)(dat >> 8)); while(SPI_GetStatus(SPI0, SPI_STA_IDLE) == RESET); SPI_SendByte(SPI0, (u8)dat); while(SPI_GetStatus(SPI0, SPI_STA_IDLE) == RESET); TFT_CS_SET();}

3、【1】配置滴答定时器做延时使用，有饴驿殚苑毫秒级和微秒级的延时，最低10us的倍数延时。滴答定时器为24Bit倒计时计数器，属于内核定时器，在ARM Corte旌忭檀挢x-M0/M3/M4上都有。u8 Fac_us = 0; u16 Fac_ms = 0;void vSysTick_Delay_Initialization(void){ SYSTICK_InitStruType SysTick_InitStructure; Fac_us = (SystemCoreClock / 3000000) * 10; //SysTick Value=10us Fac_ms = Fac_us * 100; //1ms SysTick_InitStructure.SysTick_ClkSource = SysTick_ClkS_Base; //SysTick colck = Hclk/3 = 16M SysTick_InitStructure.SysTick_ITEnable = Disable; //Disable SysTick interrupt SysTick_Init(&SysTick_InitStructure); //Init SysTick}毫秒级延时void Delay_ms(u16 Nms){ u32 Temp = 0; SysTick->LOAD = (u32)Nms*Fac_ms; //Auto Reload value SysTick->VAL = 0X00; //SysTick Current Value SysTick->CTRL |= SysTick_CTRL_ENABLE_Msk; //Enable SysTick do { Temp = SysTick->CTRL; } while((Temp&0x01) && (!(Temp&(1<<16)))); //Enable SysTick and count non-arrival SysTick->CTRL &= ~SysTick_CTRL_ENABLE_Msk; //Disable SysTick SysTick->VAL = 0X00; //SysTick Current Value }10微秒级延时void Delay_10us(u32 Nus){ u32 Temp = 0; SysTick->LOAD = (u32)Nus*Fac_us; //Auto Reload value SysTick->VAL = 0X00; //SysTick Current Value SysTick->CTRL |= SysTick_CTRL_ENABLE_Msk; //Enable SysTick do { Temp = SysTick->CTRL; } while((Temp&0x01)&& (!(Temp&(1<<16)))); //Enable SysTick and count non-arrival SysTick->CTRL &= ~SysTick_CTRL_ENABLE_Msk; //Disable SysTick SysTick->VAL = 0X00; //SysTick Current Value }

4、【1】编写TFT出厂参数校准函数，这个函数里才参数都是有TFT LCD厂家调试好的参数，直接拿过来用就行，需要设置的参数比较多，这里只展示一部分。static void vTFT_Default_Set(void){ TFT_RESET_CLR(); Delay_ms(500); TFT_RESET_SET(); Delay_ms(100); TFT_CS_CLR(); vTFT_WriteByte_Command(0xCB); vTFT_WriteByte_Data(0x39); vTFT_WriteByte_Data(0x2C); vTFT_WriteByte_Data(0x00); vTFT_WriteByte_Data(0x34); vTFT_WriteByte_Data(0x02); vTFT_WriteByte_Command(0x36);//Memory Access Control #if ( TFT_DISPLAY_MODE_LEVEL > 0 )//横屏 竖屏选择 vTFT_WriteByte_Data(0xE8); #else vTFT_WriteByte_Data(0x48); #endif vTFT_WriteByte_Command(0x3A); vTFT_WriteByte_Data(0x55); .......}

5、【1】设置光标位置void vTF哌囿亡噱T_SetCursor_Position(u16 x, u16 y){ vTFT_WriteByte_Command(0x2A);//S髫潋啜缅et X Line vTFT_WriteByte_Data(x>>8); vTFT_WriteByte_Data(x&0XFF); vTFT_WriteByte_Command(0x2B); //Set Y Row vTFT_WriteByte_Data(y>>8); vTFT_WriteByte_Data(y&0XFF); }【2】绘制窗口void vTFT_Set_Window(u16 x0, u16 y0, u16 x1, u16 y1, u16 color){ u16 x = 0; u16 y = 0; vTFT_WriteByte_Command(0x2A);//Set X Line vTFT_WriteByte_Data(x0>>8); vTFT_WriteByte_Data(x0&0xFF); vTFT_WriteByte_Data(x1>>8); vTFT_WriteByte_Data(x1&0xFF); vTFT_WriteByte_Command(0x2B);//Set Y Row vTFT_WriteByte_Data(y0>>8); vTFT_WriteByte_Data(y0&0xFF); vTFT_WriteByte_Data(y1>>8); vTFT_WriteByte_Data(y1&0xFF); vTFT_WriteByte_Command(0x2C);//Write GRAM for(x=x0; x<=x1; x++) { for(y=y0; y<=y1; y++) vTFT_Write_Data(color); }}【3】画点函数void vTFT_Drawing_Point(u16 x, u16 y, u16 color){ vTFT_SetCursor_Position(x, y); vTFT_WriteByte_Command(0x2C); vTFT_Write_Data(color); }【4】在指定位置显示一个字符，可设置背景色和前景色，共有三种字体选择void vTFT_Show_Chars(u16 x, u16 y, u8 size, u8 chr, u16 backcolor, u16 fontcolor){ u16 startY = 0; u8 fontByte = 0; u8 strPoint = 0; u8 m=0, i=0; startY = y; chr = chr - ' ';//ASCII the first character is empty,value 32 fontByte = ((size/8) + ((size%8) ? 1 : 0)) * (size/2);//Char Byte for(i=0; i<fontByte; i++) { if(size == TFT_FONT_SIZE_1206)//1206 strPoint = ASCII_1206[chr][i]; if(size == TFT_FONT_SIZE_1608)//1608 strPoint = ASCII_1608[chr][i]; else if(size == TFT_FONT_SIZE_2412)//2412 strPoint = ASCII_2412[chr][i]; else return; for(m=0; m<8; m++) { if(strPoint & 0x80) vTFT_Drawing_Point(x, y, fontcolor);//Char color else vTFT_Drawing_Point(x, y, backcolor);//Background color strPoint <<= 1; if(++y >= TFT_YHEIGHT_MAX)//Y max return; if((y - startY) == size) { y = startY; if(++x >= TFT_XWIDTH_MAX)//X max return; break; } } }}【5】在指定位置显示字符串，超出范围可自动换行显示，可设置背景色和前景色，共有三种字体选择。void vTFT_Show_Sting(u16 x, u16 y, u8 size, u8 *pstr, u16 backcolor, u16 fontcolor){ while((*pstr >= ' ') && (*pstr <= '~'))//while('\n' != *PSting) { if((x + size/2) > TFT_XWIDTH_MAX)//Next char start position { x = 0; y = y + size;//Next Fong High } if((y + size) > TFT_YHEIGHT_MAX) return; vTFT_Show_Chars(x, y, size ,*pstr, backcolor, fontcolor);//TFT Show Char x = x + size/2; pstr++;//Next char }}

6、【1】在指定位置显示数字，static u32 uxTFT_Resolve_Num(u8 m, u8 n){ u32 result=1; while(n--) result *= m; return result;}void vTFT_Show_Number(u16 x, u16 y, u8 size, u32 num, u8 len, u16 backcolor, u16 fontcolor){ u8 i,temper = 0; for(i=0; i<len; i++) { if((x + size/2) > TFT_XWIDTH_MAX)//Next char start position { x = 0; y = y + size;//Next Fong High } if((y+ size) > TFT_YHEIGHT_MAX) return; temper = (num/uxTFT_Resolve_Num(10, len-i-1))%10; vTFT_Show_Chars(x, y, size ,(temper + '0'), backcolor, fontcolor); x = x + size/2; }}

7、【1】配置系统时钟为48MHZ，使熹栳缂靖能需要的外设时钟，失能不需要的外设时钟，着这样可以降低功耗。static void vPeripheral_Clock_Configuration(voi颊俄岿髭d){ DeviceClock_Config(SCU_SUCCLK, Enable); //Enable SUC clock DeviceClock_Config(SCU_GPIOCLK, Enable); //Enable GPIO clock DeviceClock_Config(SCU_SPIOCLK, Enable); //Enable SPI0 clock DeviceClock_Config(SCU_UART1CLK, Enable); //Enable UART1 clock DeviceClock_Config(SCU_T16N2CLK, Enable); //Enable T16N2 clock DeviceClock_Config(SCU_IAPCLK, Disable); //Disable IAP clock DeviceClock_Config(SCU_T16N0CLK, Disable); //Disable T16N0 clock DeviceClock_Config(SCU_T16N3CLK, Disable); //Disable T16N3 clock DeviceClock_Config(SCU_UART0CLK, Disable); //Disable UART0 clock DeviceClock_Config(SCU_WDTCLK, Disable); //Disable WDT clock DeviceClock_Config(SCU_T16N1CLK, Disable); //Disable T16N1 clock DeviceClock_Config(SCU_RTCCLK, Disable); //Disable RTC clock DeviceClock_Config(SCU_EUART0CLK, Disable); //Disable EUART0 clock DeviceClock_Config(SCU_SPI1CLK, Disable); //Disable SPI1 clock DeviceClock_Config(SCU_I2C0CLK, Disable); //Disable I2C0 clock DeviceClock_Config(SCU_ADCCLK, Disable); //Disable ADC clock DeviceClock_Config(SCU_T32N0CLK, Disable); //Disable T32N0 clock}void vSystem_Clock_Configuration(void){ SCU_RegUnLock(); //UnLock SCU register DeviceClock_Config(SCU_SUCCLK, Enable); //Enable SUC clock SCU_SysClkSelect(SCU_CLK_HRC); //System clock HRC = 16M PLLClock_Config(Enable ,SCU_PLL_IN16M, SCU_PLL_48M, Enable); //system clock PLL = 48M SCU->SCLKEN0.SYSCLK_DIV = 0; //System clock later DIV=0 Sys=48M SCU_RegLock(); //Lock SCU register DISABLE_GLOBAL_INTERRUPT(); vPeripheral_Clock_Configuration(); //vPeripheral Clock Configuration EANBLE_USER_INTERRUPT();}

8、【1】编写TFT初始化函数void vTFT_Initialization(void){ vTFT_GPIO_Configuration(); vTFT_Default_Set(); vTFT_Clear_Screen(WHITE); vTFT_WriteByte_Command(0x28); vTFT_Set_Window(0, 0, TFT_XWIDTH_MAX, 30, BLACK); vTFT_Show_Sting(80, 3, 24, "TFT LCD Study", BLACK, WHITE); vTFT_WindowRange(0, 0, 320, 240); vTFT_Show_Sting(5, 40, 12, "1206 Font: String 0123456789 ABCDEF !@#$%^&*()_+{}|<", RED, BLACK); vTFT_Show_Sting(5, 55, 16, "1608 Font: String 0123 ABC !@#$%^&*()", BLACK, YELLOW); vTFT_Show_Sting(5, 75, 24, "2412 Font: String 123 ABC", BLUE, WHITE); vTFT_Drawing_Line(0, 108, 320, 108, RED); vTFT_Drawing_Line(0, 110, 320, 110, BLUE); vTFT_Drawing_Line(0, 112, 320, 112, BLACK); vTFT_Drawing_Circular(70, 175, 55, BLUE); vTFT_Drawing_Circular(70, 175, 35, RED); vTFT_Drawing_Circular(70, 175, 15, RED); vTFT_Show_Sting(150, 120, 24, "Number Test:", GREEN, BLACK); vTFT_Show_Sting(150, 155, 24, "DEC:", WHITE, BLACK); vTFT_Show_Number(200, 155, 24, 0, 4, BLACK, WHITE); vTFT_Show_Sting(150, 185, 24, "HEX:", WHITE, BLACK); vTFT_Show_ByteHEX(200, 185, 24, 0, BLUE, WHITE); vTFT_WriteByte_Command(0x29); vTFT_WindowRange(0, 0, 320, 240); }【2】编写系统初始化函数static void System_Initialization(void){ SystemInit(); vSystem_Clock_Configuration(); vSysTick_Delay_Initialization(); vTFT_SPI0_Initialization(); vTFT_Initialization(); Delay_ms(500);}

9、编写主函数，编译代码，有错误修改，直到无错误，下载到板子上查看效果。int main(void){ u16 i = 0; System_Initialization(); while(1) { i++; vTFT_Show_Number(200, 155, 24, i, 4, BLACK, WHITE); vTFT_Show_ByteHEX(200, 185, 24, (u8)i, BLUE, WHITE); Delay_ms(1000); }}