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stm8s驱动tft lcd，驱动芯片是 ILI9325

無唁苡對 2018-06-11 浏览量：1233

lcd一直白屏，贴出代码，帮忙看看。，谢谢

main.c源代码

#include "stm8s.h"
#include "lcd.h"

static void CLK_Config(void);
static void UART_Config(void);
void delay_ms(u16 i);

/* Private functions ---------------------------------------------------------*/

void delay_ms(u16 i)
{
u8 mn;
while(i--)
{
for(m=0;m<39;m++)
for(n=0;n<100;n++);
}
}

/**
* @brief Main program.
* @param None
* @retval None
*/
void main(void)
{
CLK_Config();
GPIO_Config();
// UART_Config();

LCD_Init();
LCD_Clear(black);
LCD_SetWindows(00100150); //设置显示窗体
LCD_Clear(red);
LCD_SetWindows(00240320); //设置显示窗体
while (1)
{
LCD_Text(1010"kuibu");
delay_ms(10000);
}
}

lcd.h代码：

#define LCD_CS GPIO_PIN_1
#define LCD_RS GPIO_PIN_2
#define LCD_WR GPIO_PIN_3
#define LCD_E GPIO_PIN_4
#define LCD_RST GPIO_PIN_5

#define Set_Cs GPIO_WriteHigh(LCD_CS_PORTLCD_CS)
#define Clr_Cs GPIO_WriteLow(LCD_CS_PORTLCD_CS)

#define Set_Rs GPIO_WriteHigh(LCD_RS_PORTLCD_RS)
#define Clr_Rs GPIO_WriteLow(LCD_RS_PORTLCD_RS)

#define Set_nWr GPIO_WriteHigh(LCD_WR_PORTLCD_WR)
#define Clr_nWr GPIO_WriteLow(LCD_WR_PORTLCD_WR)

#define Set_E GPIO_WriteHigh(LCD_E_PORTLCD_E)
#define Clr_E GPIO_WriteLow(LCD_E_PORTLCD_E)

#define Set_RST GPIO_WriteHigh(LCD_RST_PORTLCD_RST)
#define Clr_RST GPIO_WriteLow(LCD_RST_PORTLCD_RST)

#define Set_nRd GPIO_WriteHigh(LCD_RST_PORTLCD_RST)
#define Clr_nRd GPIO_WriteLow(LCD_RST_PORTLCD_RST)

void LCD_Init(void);
void LCD_WriteIndex(u16 index);
void LCD_WriteData(u16 data);
void LCD_WriteReg(u16 LCD_Regu16 LCD_RegValue);
void LCD_SetCursor( u16 Xpos u16 Ypos );
void LCD_Clear(u16 Color);
void GPIO_Config(void);
void LCD_Text(u16 x u16 y u8 *str);
void LCD_SetWindows(u16 StartXu16 StartYu16 EndXu16 EndY);
void delay_ms(u16 i);
#endif

lcd.c源代码

#include "lcd.h"

#include "stm8s.h"
#define ILI9320 0 /* 0x9320 */
#define ILI9325 1 /* 0x9325 */
#define ILI9328 2 /* 0x9328 */
#define ILI9331 3 /* 0x9331 */
#define SSD1298 4 /* 0x8999 */
#define SSD1289 5 /* 0x8989 */
#define ST7781 6 /* 0x7783 */
#define LGDP4531 7 /* 0x4531 */
#define SPFD5408B 8 /* 0x5408 */
#define R61505U 9 /* 0x1505 0x0505 */
#define HX8347D 10 /* 0x0047 */
#define HX8347A 11 /* 0x0047 */
#define LGDP4535 12 /* 0x4535 */
#define SSD2119 13 /* 3.5 LCD 0x9919 */

void LCD_Init(void);
void LCD_WriteIndex(u16 index);
void LCD_WriteData(u16 data);
void LCD_WriteReg(u16 LCD_Regu16 LCD_RegValue);
void LCD_SetCursor( u16 Xpos u16 Ypos );
void LCD_Clear(u16 Color);
void GPIO_Config(void);
void LCD_Text(u16 x u16 y u8 *str);
void LCD_SetWindows(u16 StartXu16 StartYu16 EndXu16 EndY);

/* 写命令函数 */
void LCD_WriteIndex(u16 index)
{
u8 index1index2;
index1=(u8)index;
index2=(u8)(index>>8);
Clr_Rs; //RS=0
Set_nRd; //RD=0
delay_ms(1); //延时
GPIO_Write(LCD_DATA1_PORTindex2);
GPIO_Write(LCD_DATA2_PORTindex1); /*写命令 */
delay_ms(1); //延时
Clr_nWr; //WR=0
Set_nWr; //WR=1
}

/* 写数据函数 */
void LCD_WriteData(u16 data)
{
u8 data1data2;
data1=(u8)data;
data2=(u8)(data>>8);
Set_Rs; //RS=1
Set_nRd; //RD=0
delay_ms(1); //延时
GPIO_Write(LCD_DATA1_PORTdata1);
GPIO_Write(LCD_DATA2_PORTdata2); /*写数据*/
delay_ms(1); //延时
Clr_nWr; //WR=0
Set_nWr; //WR=1
}

/*指定的地址写入数据， LCD_Reg 是地址， LCD_RegValue 是写入的值*/
void LCD_WriteReg(u16 LCD_Regu16 LCD_RegValue)
{
Clr_Cs;
LCD_WriteIndex(LCD_Reg); //写指令；即要写入数据的地址；
LCD_WriteData(LCD_RegValue); //数据写入；
Set_Cs;
}

//初始化LCD12864
void LCD_Init(void)
{
GPIO_Config();
Clr_RST; /* LCD 复位*/
delay_ms(100);
Set_RST;
GPIO_WriteHigh(GPIOCGPIO_PIN_6); /*使能背光 */
LCD_WriteReg(0x00e70x0010);
LCD_WriteReg(0x00000x0001); /* start internal osc */

LCD_WriteReg(0x0001(0<<10)|(1<<8));
LCD_WriteReg(0x00020x0700); /* power on sequence */
#if (DISP_ORIENTATION == 0)
LCD_WriteReg(0x0003(1<<12)|(1<<5)|(1<<4)|(0<<3));
#elif (DISP_ORIENTATION == 90)
LCD_WriteReg(0x0003(1<<12)|(0<<5)|(1<<4)|(1<<3));
#elif (DISP_ORIENTATION == 180)
LCD_WriteReg(0x0003(1<<12)|(0<<5)|(0<<4)|(0<<3));
#elif (DISP_ORIENTATION == 270)
LCD_WriteReg(0x0003(1<<12)|(1<<5)|(0<<4)|(1<<3));
#endif
LCD_WriteReg(0x00040x0000);
LCD_WriteReg(0x00080x0207);
LCD_WriteReg(0x00090x0000);
LCD_WriteReg(0x000a0x0000); /* display setting */
LCD_WriteReg(0x000c0x0001); /* display setting */
LCD_WriteReg(0x000d0x0000);
LCD_WriteReg(0x000f0x0000); /* Power On sequence */
LCD_WriteReg(0x00100x0000);
LCD_WriteReg(0x00110x0007);
LCD_WriteReg(0x00120x0000);
LCD_WriteReg(0x00130x0000);
delay_ms(50); /* delay 50 ms */
LCD_WriteReg(0x00100x1590);
LCD_WriteReg(0x00110x0227);
delay_ms(50); /* delay 50 ms */
LCD_WriteReg(0x00120x009c);
delay_ms(50); /* delay 50 ms */
LCD_WriteReg(0x00130x1900);
LCD_WriteReg(0x00290x0023);
LCD_WriteReg(0x002b0x000e);
delay_ms(50); /* delay 50 ms */
delay_ms(50); /* delay 50 ms */
LCD_WriteReg(0x00300x0007);
LCD_WriteReg(0x00310x0707);
LCD_WriteReg(0x00320x0006);
LCD_WriteReg(0x00350x0704);
LCD_WriteReg(0x00360x1f04);
LCD_WriteReg(0x00370x0004);
LCD_WriteReg(0x00380x0000);
LCD_WriteReg(0x00390x0706);
LCD_WriteReg(0x003c0x0701);
LCD_WriteReg(0x003d0x000f);
delay_ms(50); /* delay 50 ms */
LCD_WriteReg(0x00500x0000);
LCD_WriteReg(0x00510x00ef);
LCD_WriteReg(0x00520x0000);
LCD_WriteReg(0x00530x013f);
LCD_WriteReg(0x00600xa700);
LCD_WriteReg(0x00610x0001);
LCD_WriteReg(0x006a0x0000);
LCD_WriteReg(0x00800x0000);
LCD_WriteReg(0x00810x0000);
LCD_WriteReg(0x00820x0000);
LCD_WriteReg(0x00830x0000);
LCD_WriteReg(0x00840x0000);
LCD_WriteReg(0x00850x0000);
LCD_WriteReg(0x00900x0010);
LCD_WriteReg(0x00920x0600);
LCD_WriteReg(0x00930x0003);
LCD_WriteReg(0x00950x0110);
LCD_WriteReg(0x00970x0000);
LCD_WriteReg(0x00980x0000); /* display on sequence */
LCD_WriteReg(0x00070x0133);
delay_ms(10);
LCD_WriteReg(0x00200x0000);
LCD_WriteReg(0x00210x0000);
}

//设置显示窗口的位置 X/Y
void LCD_SetCursor( u16 Xpos u16 Ypos)
{
LCD_WriteReg(0x0020 Xpos);
LCD_WriteReg(0x0021 Ypos);
}

//设置窗口区域
void LCD_SetWindows(u16 StartXu16 StartYu16 EndXu16 EndY)
{
LCD_SetCursor(StartXStartY);
LCD_WriteReg(0x0050 StartX);
LCD_WriteReg(0x0052 StartY);
LCD_WriteReg(0x0051 EndX);
LCD_WriteReg(0x0053 EndY);
}

//清屏函数，作用是让整个屏显示某一种颜色
void LCD_Clear(u16 Color)
{
u32 index=0;
LCD_SetCursor(00);
Clr_Cs;
LCD_WriteIndex(0x0022);
for( index = 0; index < MAX_X * MAX_Y; index++ )
{
LCD_WriteData(Color);
}
Set_Cs;
}

//在指定座标画点
void LCD_SetPoint(uint16_t Xposuint16_t Yposuint16_t point)
{
if( Xpos >= MAX_X || Ypos >= MAX_Y )
{
return;
}
LCD_SetCursor(XposYpos);
LCD_WriteReg(0x0022point);
}

//在指定座标显示字符串
void LCD_Text(u16 x u16 y u8 *str)
{
u8 i;
i=0;
while(*str)
{
i++;
LCD_SetPoint((x+8*i)y*str++);
}
}

//IO口设置
void GPIO_Config(void)
{
GPIO_Init(GPIOBGPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4|
GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7GPIO_MODE_OUT_PP_LOW_FAST);
GPIO_Init(GPIOGGPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4|
GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7GPIO_MODE_OUT_PP_LOW_FAST);
GPIO_Init(GPIOCGPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4|
GPIO_PIN_5|GPIO_PIN_6GPIO_MODE_OUT_PP_LOW_FAST);
}

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最佳答案

勇哥来巡山
这个只能对照数据手册一步一步查，首先确实寄存器是不是写入正确的
- 发布于 2018-06-12
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其他答案数量：6

陈长兵
GPIO_Init(GPIOBGPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4|
GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7GPIO_MODE_OUT_PP_LOW_FAST);
GPIO_Init(GPIOGGPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4|
GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7GPIO_MODE_OUT_PP_LOW_FAST);
GPIO_Init(GPIOCGPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4|
GPIO_PIN_5|GPIO_PIN_6GPIO_MODE_OUT_PP_LOW_FAST);
好像少了逗号
- 发布于2018-06-11
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