【第四批】sh007笔记-SPI驱动1.8寸TFT

只看该作者 · 2012-1-6 22:31

本帖最后由 sh007 于 2012-1-6 22:36 编辑

最近公司上新项目，新平台很忙都没写真是惭愧！现在赶紧补上。
1.8寸TFT 是ST7735的驱动芯片，是SPI方式驱动，数据口只有五个。
赶紧上代码吧！

补几张照片，哈哈！

主文件

 

#include <stdio.h>

#include "NUC1xx.h"

#include "DrvUART.h"

#include "DrvSYS.h"

#include "DrvSPI.h"

#include "DrvPDMA.h"

#include "SPI_FLASH_PDMA.h"

#include "ST7735R_SPI.H"

#include "Driver\DrvGPIO.h"

#define    RW_LEN       80

#define    DelayCnt      500



extern void Test_picture(uint8_t *map);

extern unsigned char gImage_hotpower[];

extern unsigned char gImage_hotpage[];

uint8_t SPI_PDMA_RXBuf[RW_LEN];

uint8_t SPI_PDMA_TXBuf[RW_LEN];

void  RCC_Config(void);

void  UART_Config(void);



int main()

{

    RCC_Config();

    UART_Config();

    SPI_Init();

   printf("\n");

printf("+----------------------------------------------------------------------+\n");  

printf("|                 NUC120助学板之SPI ---TFT_ST7735                      |\n");

printf("+----------------------------------------------------------------------+\n");

printf("***NUC120***配置主频为: %2d MHz.\n",DrvSYS_GetHCLKFreq()/1000000);

printf("---SPI0主机模式,频率为: %2d MHz.\n", DrvSPI_GetClock1Freq(eDRVSPI_PORT0)/1000000);

    //设置PA5为输出，PA5为RESET

    DrvGPIO_Open(E_GPB,10, E_IO_OUTPUT);

GPIOB->DOUT &= ~(1 << 10);

TFT_INIT();



while(1)

{

RamAdressSet();

TFT_Single_Colour(0xf800); //红

delay(DelayCnt);

RamAdressSet();

TFT_Single_Colour(0x07e0); //绿

delay(DelayCnt);

RamAdressSet();

TFT_Single_Colour(0x001f); //蓝

delay(DelayCnt);

RamAdressSet();

TFT_Single_Colour(0xf81f); //黄

delay(DelayCnt);

RamAdressSet();

TFT_Single_Colour(0xffe0); //青

delay(DelayCnt);

RamAdressSet();

TFT_Single_Colour(0x07ff); //紫

delay(DelayCnt);

RamAdressSet();

TFT_Single_Colour(0xffff); //白

delay(DelayCnt);

   Test_picture(gImage_hotpower) ; //大叔

   delay(DelayCnt*5);

   Test_picture(gImage_hotpage) ;  //大叔小孩

   delay(DelayCnt*5);

      

}



}

void  RCC_Config(void)

{

UNLOCKREG();

    SYSCLK->WRCON.XTL12M_EN = 1;

    // Waiting for 12M Xtal stalble 

    DrvSYS_Delay(5000);

//HCLK 为外部12M 通过PLL倍频到 50MHz.

DrvSYS_Open(50000000);

DrvSYS_Delay(5000);

LOCKREG();

}

void UART_Config()

{

  STR_UART_T sParam;

// Set UART I/O 

DrvGPIO_InitFunction(E_FUNC_UART0);

//Select UART Clock Source From 12MHz 

DrvSYS_SelectIPClockSource(E_SYS_UART_CLKSRC, 0); 

// UART Setting 

    sParam.u32BaudRate   = 9600;

    sParam.u8cDataBits   = DRVUART_DATABITS_8;

    sParam.u8cStopBits   = DRVUART_STOPBITS_1;

    sParam.u8cParity   = DRVUART_PARITY_NONE;

    sParam.u8cRxTriggerLevel= DRVUART_FIFO_1BYTES;

// Set UART Configuration 

DrvUART_Open(UART_PORT0, &sParam);

}

SPI驱动TFT

复制

void LCD_Write_CMD(uint8_t CMDTmp)

{

uint32_t au32SourceData;

//configure transaction length as 8 bits

DrvSPI_SetBitLength(eDRVSPI_PORT0, 8);



//CS =0

RS_LOW; 



au32SourceData = CMDTmp;

DrvSPI_SingleWrite(eDRVSPI_PORT0, &au32SourceData);

// wait

while (DrvSPI_IsBusy(eDRVSPI_PORT0)) {}



}

void LCD_Write_DATA8B(uint8_t DataTmp) 

{

uint32_t au32SourceData;



// configure transaction length as 8 bits

DrvSPI_SetBitLength(eDRVSPI_PORT0, 8);



//CS =1

RS_HIGH;

au32SourceData = DataTmp; 

DrvSPI_SingleWrite(eDRVSPI_PORT0, &au32SourceData); 



// wait

while (DrvSPI_IsBusy(eDRVSPI_PORT0)) {}



}



void LCD_Write_DATA16B(uint16_t LCD_Data)

{

uint32_t au32SourceData;



// configure transaction length as 8 bits

DrvSPI_SetBitLength(eDRVSPI_PORT0, 16);



//CS =1

RS_HIGH;



au32SourceData = LCD_Data; 

//while(!DrvSPI_SingleWrite(eDRVSPI_PORT1, &au32SourceData)){} 

DrvSPI_SingleWrite(eDRVSPI_PORT0, &au32SourceData);

// wait

while (DrvSPI_IsBusy(eDRVSPI_PORT0)) {}



}



void TFT_RESET(void)

{

RESET_LOW;

delay(100);

RESET_HIGH;

delay(100);

}

void TFT_INIT(void)

{

RESET_LOW;

delay(10);

RESET_HIGH;

delay(10);



//------------------------------------------------------------------// 

//-------------------Software Reset-------------------------------//

//------------------------------------------------------------------//



LCD_Write_CMD(0x11);//Sleep out

delay(5);

//ST7735R Frame Rate

LCD_Write_CMD(0xB1);

LCD_Write_DATA8B(0x01);

LCD_Write_DATA8B(0x2C);

LCD_Write_DATA8B(0x2D);

LCD_Write_CMD(0xB2);

LCD_Write_DATA8B(0x01);

LCD_Write_DATA8B(0x2C);

LCD_Write_DATA8B(0x2D);

LCD_Write_CMD(0xB3);

LCD_Write_DATA8B(0x01);

LCD_Write_DATA8B(0x2C);

LCD_Write_DATA8B(0x2D);

LCD_Write_DATA8B(0x01);

LCD_Write_DATA8B(0x2C);

LCD_Write_DATA8B(0x2D);

//------------------------------------End ST7735R Frame Rate-----------------------------------------//

LCD_Write_CMD(0xB4);//Column inversion

LCD_Write_DATA8B(0x07);

//------------------------------------ST7735R Power Sequence-----------------------------------------//

LCD_Write_CMD(0xC0);

LCD_Write_DATA8B(0xA2);

LCD_Write_DATA8B(0x02);

LCD_Write_DATA8B(0x84);

LCD_Write_CMD(0xC1);

LCD_Write_DATA8B(0xC5);

LCD_Write_CMD(0xC2);

LCD_Write_DATA8B(0x0A);

LCD_Write_DATA8B(0x00);

LCD_Write_CMD(0xC3);

LCD_Write_DATA8B(0x8A);

LCD_Write_DATA8B(0x2A);

LCD_Write_CMD(0xC4);

LCD_Write_DATA8B(0x8A);

LCD_Write_DATA8B(0xEE);

//---------------------------------End ST7735R Power Sequence-------------------------------------//

LCD_Write_CMD(0xC5);//VCOM

LCD_Write_DATA8B(0x0E);

LCD_Write_CMD(0x36);//MX, MY, RGB mode

LCD_Write_DATA8B(0xC8);//C8 //自上而下,自左向右,BGR扫描显示。

//------------------------------------ST7735R Gamma Sequence-----------------------------------------//

LCD_Write_CMD(0xe0);

LCD_Write_DATA8B(0x02);

LCD_Write_DATA8B(0x1c);

LCD_Write_DATA8B(0x07);

LCD_Write_DATA8B(0x12);

LCD_Write_DATA8B(0x37);

LCD_Write_DATA8B(0x32);

LCD_Write_DATA8B(0x29);

LCD_Write_DATA8B(0x2d);

LCD_Write_DATA8B(0x29);

LCD_Write_DATA8B(0x25);

LCD_Write_DATA8B(0x2b);

LCD_Write_DATA8B(0x39);

LCD_Write_DATA8B(0x00);

LCD_Write_DATA8B(0x01);

LCD_Write_DATA8B(0x03);

LCD_Write_DATA8B(0x10);

LCD_Write_CMD(0xe1);

LCD_Write_DATA8B(0x03);

LCD_Write_DATA8B(0x1d);

LCD_Write_DATA8B(0x07);

LCD_Write_DATA8B(0x06);

LCD_Write_DATA8B(0x2e);

LCD_Write_DATA8B(0x2c);

LCD_Write_DATA8B(0x29);

LCD_Write_DATA8B(0x2d);

LCD_Write_DATA8B(0x2e);

LCD_Write_DATA8B(0x2e);

LCD_Write_DATA8B(0x37);

LCD_Write_DATA8B(0x3f);

LCD_Write_DATA8B(0x00);

LCD_Write_DATA8B(0x00);

LCD_Write_DATA8B(0x02);

LCD_Write_DATA8B(0x10);



LCD_Write_CMD(0x2A); //Column Address Set

LCD_Write_DATA8B(0x00);

LCD_Write_DATA8B(0x00);

LCD_Write_DATA8B(0x00);

LCD_Write_DATA8B(0x7F);



LCD_Write_CMD(0x2B); //Row Address Set 

LCD_Write_DATA8B(0x00);

LCD_Write_DATA8B(0x00); //01

LCD_Write_DATA8B(0x00);

LCD_Write_DATA8B(0x9F); //A0

//------------------------------------End ST7735R Gamma Sequence-----------------------------------------//

//设置显示色彩 12位（4k,03h)，16位（65k,05h)，18位（262k,06h)。

LCD_Write_CMD(0x3A); 

LCD_Write_DATA8B(0x05); //262k mode

LCD_Write_CMD(0x29);//Display on

delay(10); 

}



void RamAdressSet(void)

{

LCD_Write_CMD(0x2A);

LCD_Write_DATA8B(0x00);

LCD_Write_DATA8B(0x02);

LCD_Write_DATA8B(0x00);

LCD_Write_DATA8B(0x81);



LCD_Write_CMD(0x2B);

LCD_Write_DATA8B(0x00);

LCD_Write_DATA8B(0x01);

LCD_Write_DATA8B(0x00);

LCD_Write_DATA8B(0xA0);



LCD_Write_CMD(0x2C);//Write DATA TO RAM 

}





void LCD_DataWrite(uint8_t LCD_DataH,uint8_t LCD_DataL)

{

LCD_Write_DATA8B(LCD_DataH);

LCD_Write_DATA8B(LCD_DataL);

}





void TFT_Single_Colour(uint16_t SCDATA)

{

uint8_t i,j;

for (i=0;i<128;i++)

for (j=0;j<160;j++)

LCD_Write_DATA16B(SCDATA);

}



void Test_picture(uint8_t *map)

{

int j;

RamAdressSet(); 

for(j=0;j<(128*160);j++)

LCD_DataWrite(map[2*j+1],map[2*j]);

}