在蓝桥杯比赛中，蓝桥杯的官方嵌入式信息包会给你关于LCD所以不用担心蓝桥杯的驱动，LCD只要我们知道在本文件中获取函数以实现功能，我们最好直接查看国信长期提供给我们的程序。
#include "lcd.h" #include "fonts.h" //#include "systick.h" static vu16 TextColor = 0x0000, BackColor = 0xFFFF; vu16 dummy; /******************************************************************************* * Function Name : Delay_LCD * Description : Inserts a delay time. * Input : nCount: specifies the delay time length. * Output : None * Return : None *******************************************************************************/ void Delay_LCD(u16 n) { u16 i,j; for (i = 0;i<n; i) for(j=0;j<3000; j); } /* uC8230Díòo?§?§?????÷??′??÷???? */ void REG_8230_Init(void) { LCD_WriteReg(0x0000,0x0001); Delay_LCD(1000); LCD_WriteReg(0x0001,0x0000); LCD_WriteReg(0x0010,0x1790); LCD_WriteReg(0x0060,0x2700); LCD_WriteReg(0x0061,0x0001); LCD_WriteReg(0x0046,0x0002); LCD_WriteReg(0x0013,0x8010); LCD_WriteReg(0x0012,0x80fe); LCD_WriteReg(0x0002,0x0500); LCD_WriteReg(0x0003,0x1030); LCD_WriteReg(0x0030,0x0303); LCD_WriteReg(0x0031,0x0303); LCD_WriteReg(0x0032,0x0303); LCD_WriteReg(0x0033,0x0300); LCD_WriteReg(0x0034,0x0003); LCD_WriteReg(0x0035,0x0303); LCD_WriteReg(0x0036,0x0014); LCD_WriteReg(0x0037,0x0303); LCD_WriteReg(0x0038,0x0303); LCD_WriteReg(0x0039,0x0303); LCD_WriteReg(0x003a,0x0300); LCD_WriteReg(0x003b,0x0003); LCD_WriteReg(0x003c,0x0303); LCD_WriteReg(0x003d,0x1400); LCD_WriteReg(0x0092,0x0200); LCD_WriteReg(0x0093,0x0303); LCD_WriteReg(0x0090,0x080d); LCD_WriteReg(0x0003,0x1018); LCD_WriteReg(0x0007,0x0173); } void REG_932X_Init(void) { LCD_WriteReg(R227, 0x3008); // Set internal timing LCD_WriteReg(R231, 0x0012); // Set internal timing LCD_WriteReg(R239, 0x1231); // Set internal timing LCD_WriteReg(R1 , 0x0000); // set SS and SM bit //0x0100 LCD_WriteReg(R2 , 0x0700); // set 1 line inversion LCD_WriteReg(R3 , 0x1030); // set GRAM write direction and BGR=1. LCD_WriteReg(R4 , 0x0000); // Resize register LCD_WriteReg(R8 , 0x0207); // set the back porch and front porch LCD_WriteReg(R9 , 0x0000); // set non-display area refresh cycle ISC[3:0] LCD_WriteReg(R10 , 0x0000); // FMARK function LCD_WriteReg(R12 , 0x0000); // RGB interface setting LCD_WriteReg(R13 , 0x0000); // Frame marker Position LCD_WriteReg(R15 , 0x0000); // RGB interface polarity /**************Power On sequence ****************/ LCD_WriteReg(R16 , 0x0000); // SAP, BT[3:0], AP, DSTB, SLP, STB LCD_WriteReg(R17 , 0x0007); // DC1[2:0], DC0[2:0], VC[2:0] LCD_WriteReg(R18 , 0x0000); // VREG1OUT voltage LCD_WriteReg(R19 , 0x0000); // VDV[4:0] for VCOM amplitude // Delay_Ms(200); // Delay 200 MS , Dis-charge capacitor power voltage HAL_Delay(200); LCD_WriteReg(R16 , 0x1690); // SAP, BT[3:0], AP, DSTB, SLP, STB LCD_WriteReg(R17 , 0x0227); // R11H=0x0221 at VCI=3.3V, DC1[2:0], DC0[2:0], VC[2:0] // Delay_Ms(50); // Delay 50ms HAL_Delay(50); LCD_WriteReg(R18 , 0x001D); // External reference voltage= Vci; // Delay_Ms(50); // Delay 50ms HAL_Delay(50); LCD_WriteReg(R19 , 0x0800); // R13H=1D00 when R12H=009D;VDV[4:0] for VCOM amplitude LCD_WriteReg(R41 , 0x0014); // R29H=0013 when R12H=009D;VCM[5:0] for VCOMH LCD_WriteReg(R43 , 0x000B); // Frame Rate = 96Hz // Delay_Ms(50); // Delay 50ms HAL_Delay(50); LCD_WriteReg(R32 , 0x0000); // GRAM horizontal Address LCD_WriteReg(R33 , 0x0000); // GRAM Vertical Address /* ----------- Adjust the Gamma Curve ---------- */ LCD_WriteReg(R48 , 0x0007); LCD_WriteReg(R49 , 0x0707); LCD_WriteReg(R50 , 0x0006); LCD_WriteReg(R53 , 0x0704); LCD_WriteReg(R54 , 0x1F04); LCD_WriteReg(R55 , 0x0004); LCD_WriteReg(R56 , 0x0000); LCD_WriteReg(R57 , 0x0706); LCD_WriteReg(R60 , 0x0701); LCD_WriteReg(R61 , 0x000F); /* ------------------ Set GRAM area --------------- */ LCD_WriteReg(R80 , 0x0000); // Horizontal GRAM Start Address LCD_WriteReg(R81 , 0x00EF); // Horizontal GRAM End Address LCD_WriteReg(R82 , 0x0000); // Vertical GRAM Start Address LCD_WriteReg(R83 , 0x013F); // Vertical GRAM Start Address LCD_WriteReg(R96 , 0x2700); // Gate Scan Line 0xA700 LCD_WriteReg(R97 , 0x0001); // NDL,VLE, REV LCD_WriteReg(R106, 0x0000); // set scrolling line /* -------------- Partial Display Control --------- */ LCD_WriteReg(R128, 0x0000); LCD_WriteReg(R129, 0x0000); LCD_WriteReg(R130, 0x0000); LCD_WriteReg(R131, 0x0000); LCD_WriteReg(R132, 0x0000); LCD_WriteReg(R133, 0x0000); /* -------------- Panel Control ------------------- */ LCD_WriteReg(R144, 0x0010); LCD_WriteReg(R146, 0x0000); LCD_WriteReg(R147, 0x0003); LCD_WriteReg(R149, 0x0110); LCD_WriteReg(R151, 0x0000); LCD_WriteReg(R152, 0x0000); /* Set GRAM write direction and BGR = 1 */ /* I/D=01 (Horizontal : increment, Vertical : decrement) /
/* AM=1 (address is updated in vertical writing direction) */
LCD_WriteReg(R3 , 0x01018); //0x1018
LCD_WriteReg(R7 , 0x0173); // 262K color and display ON
}
/*******************************************************************************
* Function Name : STM3210B_LCD_Init
* Description : Initializes the LCD.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void LCD_Init(void)
{
LCD_CtrlLinesConfig();
dummy = LCD_ReadReg(0);
if(dummy == 0x8230){
REG_8230_Init();
}
else{
REG_932X_Init();
}
dummy = LCD_ReadReg(0);
}
/*******************************************************************************
* Function Name : LCD_SetTextColor
* Description : Sets the Text color.
* Input : - Color: specifies the Text color code RGB(5-6-5).
* Output : - TextColor: Text color global variable used by LCD_DrawChar
* and LCD_DrawPicture functions.
* Return : None
*******************************************************************************/
void LCD_SetTextColor(vu16 Color)
{
TextColor = Color;
}
/*******************************************************************************
* Function Name : LCD_SetBackColor
* Description : Sets the Background color.
* Input : - Color: specifies the Background color code RGB(5-6-5).
* Output : - BackColor: Background color global variable used by
* LCD_DrawChar and LCD_DrawPicture functions.
* Return : None
*******************************************************************************/
void LCD_SetBackColor(vu16 Color)
{
BackColor = Color;
}
/*******************************************************************************
* Function Name : LCD_ClearLine
* Description : Clears the selected line.
* Input : - Line: the Line to be cleared.
* This parameter can be one of the following values:
* - Linex: where x can be 0..9
* Output : None
* Return : None
*******************************************************************************/
void LCD_ClearLine(u8 Line)
{
LCD_DisplayStringLine(Line, " ");
}
/*******************************************************************************
* Function Name : LCD_Clear
* Description : Clears the hole LCD.
* Input : Color: the color of the background.
* Output : None
* Return : None
*******************************************************************************/
void LCD_Clear(u16 Color)
{
u32 index = 0;
LCD_SetCursor(0x00, 0x0000);
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
for(index = 0; index < 76800; index++)
{
LCD_WriteRAM(Color);
}
}
/*******************************************************************************
* Function Name : LCD_SetCursor
* Description : Sets the cursor position.
* Input : - Xpos: specifies the X position.
* - Ypos: specifies the Y position.
* Output : None
* Return : None
*******************************************************************************/
void LCD_SetCursor(u8 Xpos, u16 Ypos)
{
LCD_WriteReg(R32, Xpos);
LCD_WriteReg(R33, Ypos);
}
/*******************************************************************************
* Function Name : LCD_DrawChar
* Description : Draws a character on LCD.
* Input : - Xpos: the Line where to display the character shape.
* This parameter can be one of the following values:
* - Linex: where x can be 0..9
* - Ypos: start column address.
* - c: pointer to the character data.
* Output : None
* Return : None
*******************************************************************************/
void LCD_DrawChar(u8 Xpos, u16 Ypos, uc16 *c)
{
u32 index = 0, i = 0;
u8 Xaddress = 0;
Xaddress = Xpos;
LCD_SetCursor(Xaddress, Ypos);
for(index = 0; index < 24; index++)
{
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
for(i = 0; i < 16; i++)
{
if((c[index] & (1 << i)) == 0x00)
{
LCD_WriteRAM(BackColor);
}
else
{
LCD_WriteRAM(TextColor);
}
}
Xaddress++;
LCD_SetCursor(Xaddress, Ypos);
}
}
/*******************************************************************************
* Function Name : LCD_DisplayChar
* Description : Displays one character (16dots width, 24dots height).
* Input : - Line: the Line where to display the character shape .
* This parameter can be one of the following values:
* - Linex: where x can be 0..9
* - Column: start column address.
* - Ascii: character ascii code, must be between 0x20 and 0x7E.
* Output : None
* Return : None
*******************************************************************************/
void LCD_DisplayChar(u8 Line, u16 Column, u8 Ascii)
{
Ascii -= 32;
LCD_DrawChar(Line, Column, &ASCII_Table[Ascii * 24]);
}
/*******************************************************************************
* Function Name : LCD_DisplayStringLine
* Description : Displays a maximum of 20 char on the LCD.
* Input : - Line: the Line where to display the character shape .
* This parameter can be one of the following values:
* - Linex: where x can be 0..9
* - *ptr: pointer to string to display on LCD.
* Output : None
* Return : None
*******************************************************************************/
void LCD_DisplayStringLine(u8 Line, u8 *ptr)
{
u32 i = 0;
u16 refcolumn = 319;//319;
while ((*ptr != 0) && (i < 20)) // 20
{
LCD_DisplayChar(Line, refcolumn, *ptr);
refcolumn -= 16;
ptr++;
i++;
}
}
/*******************************************************************************
* Function Name : LCD_SetDisplayWindow
* Description : Sets a display window
* Input : - Xpos: specifies the X buttom left position.
* - Ypos: specifies the Y buttom left position.
* - Height: display window height.
* - Width: display window width.
* Output : None
* Return : None
*******************************************************************************/
void LCD_SetDisplayWindow(u8 Xpos, u16 Ypos, u8 Height, u16 Width)
{
if(Xpos >= Height)
{
LCD_WriteReg(R80, (Xpos - Height + 1));
}
else
{
LCD_WriteReg(R80, 0);
}
LCD_WriteReg(R81, Xpos);
if(Ypos >= Width)
{
LCD_WriteReg(R82, (Ypos - Width + 1));
}
else
{
LCD_WriteReg(R82, 0);
}
/* Vertical GRAM End Address */
LCD_WriteReg(R83, Ypos);
LCD_SetCursor(Xpos, Ypos);
}
/*******************************************************************************
* Function Name : LCD_WindowModeDisable
* Description : Disables LCD Window mode.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void LCD_WindowModeDisable(void)
{
LCD_SetDisplayWindow(239, 0x13F, 240, 320);
LCD_WriteReg(R3, 0x1018);
}
/*******************************************************************************
* Function Name : LCD_DrawLine
* Description : Displays a line.
* Input : - Xpos: specifies the X position.
* - Ypos: specifies the Y position.
* - Length: line length.
* - Direction: line direction.
* This parameter can be one of the following values: Vertical
* or Horizontal.
* Output : None
* Return : None
*******************************************************************************/
void LCD_DrawLine(u8 Xpos, u16 Ypos, u16 Length, u8 Direction)
{
u32 i = 0;
LCD_SetCursor(Xpos, Ypos);
if(Direction == Horizontal)
{
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
for(i = 0; i < Length; i++)
{
LCD_WriteRAM(TextColor);
}
}
else
{
for(i = 0; i < Length; i++)
{
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
LCD_WriteRAM(TextColor);
Xpos++;
LCD_SetCursor(Xpos, Ypos);
}
}
}
/*******************************************************************************
* Function Name : LCD_DrawRect
* Description : Displays a rectangle.
* Input : - Xpos: specifies the X position.
* - Ypos: specifies the Y position.
* - Height: display rectangle height.
* - Width: display rectangle width.
* Output : None
* Return : None
*******************************************************************************/
void LCD_DrawRect(u8 Xpos, u16 Ypos, u8 Height, u16 Width)
{
LCD_DrawLine(Xpos, Ypos, Width, Horizontal);
LCD_DrawLine((Xpos + Height), Ypos, Width, Horizontal);
LCD_DrawLine(Xpos, Ypos, Height, Vertical);
LCD_DrawLine(Xpos, (Ypos - Width + 1), Height, Vertical);
}
/*******************************************************************************
* Function Name : LCD_DrawCircle
* Description : Displays a circle.
* Input : - Xpos: specifies the X position.
* - Ypos: specifies the Y position.
* - Height: display rectangle height.
* - Width: display rectangle width.
* Output : None
* Return : None
*******************************************************************************/
void LCD_DrawCircle(u8 Xpos, u16 Ypos, u16 Radius)
{
s32 D;
u32 CurX;
u32 CurY;
D = 3 - (Radius << 1);
CurX = 0;
CurY = Radius;
while (CurX <= CurY)
{
LCD_SetCursor(Xpos + CurX, Ypos + CurY);
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
LCD_WriteRAM(TextColor);
LCD_SetCursor(Xpos + CurX, Ypos - CurY);
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
LCD_WriteRAM(TextColor);
LCD_SetCursor(Xpos - CurX, Ypos + CurY);
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
LCD_WriteRAM(TextColor);
LCD_SetCursor(Xpos - CurX, Ypos - CurY);
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
LCD_WriteRAM(TextColor);
LCD_SetCursor(Xpos + CurY, Ypos + CurX);
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
LCD_WriteRAM(TextColor);
LCD_SetCursor(Xpos + CurY, Ypos - CurX);
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
LCD_WriteRAM(TextColor);
LCD_SetCursor(Xpos - CurY, Ypos + CurX);
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
LCD_WriteRAM(TextColor);
LCD_SetCursor(Xpos - CurY, Ypos - CurX);
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
LCD_WriteRAM(TextColor);
if (D < 0)
{
D += (CurX << 2) + 6;
}
else
{
D += ((CurX - CurY) << 2) + 10;
CurY--;
}
CurX++;
}
}
/*******************************************************************************
* Function Name : LCD_DrawMonoPict
* Description : Displays a monocolor picture.
* Input : - Pict: pointer to the picture array.
* Output : None
* Return : None
*******************************************************************************/
void LCD_DrawMonoPict(uc32 *Pict)
{
u32 index = 0, i = 0;
LCD_SetCursor(0, 319);
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
for(index = 0; index < 2400; index++)
{
for(i = 0; i < 32; i++)
{
if((Pict[index] & (1 << i)) == 0x00)
{
LCD_WriteRAM(BackColor);
}
else
{
LCD_WriteRAM(TextColor);
}
}
}
}
/*******************************************************************************
* Function Name : LCD_WriteBMP
* Description : Displays a bitmap picture loaded in the internal Flash.
* Input : - BmpAddress: Bmp picture address in the internal Flash.
* Output : None
* Return : None
*******************************************************************************/
void LCD_WriteBMP(u32 BmpAddress)
{
u32 index = 0, size = 0;
size = *(vu16 *) (BmpAddress + 2);
size |= (*(vu16 *) (BmpAddress + 4)) << 16;
index = *(vu16 *) (BmpAddress + 10);
index |= (*(vu16 *) (BmpAddress + 12)) << 16;
size = (size - index)/2;
BmpAddress += index;
LCD_WriteReg(R3, 0x1008);
LCD_WriteRAM_Prepare();
for(index = 0; index < size; index++)
{
LCD_WriteRAM(*(vu16 *)BmpAddress);
BmpAddress += 2;
}
LCD_WriteReg(R3, 0x1018);
}
/*******************************************************************************
* Function Name : LCD_WriteReg
* Description : Writes to the selected LCD register.
* Input : - LCD_Reg: address of the selected register.
* - LCD_RegValue: value to write to the selected register.
* Output : None
* Return : None
*******************************************************************************/
void LCD_WriteReg(u8 LCD_Reg, u16 LCD_RegValue)
{
GPIOB->BRR |= GPIO_PIN_9;
GPIOB->BRR |= GPIO_PIN_8;
GPIOB->BSRR |= GPIO_PIN_5;
GPIOC->ODR = LCD_Reg;
GPIOB->BRR |= GPIO_PIN_5;
__nop();
__nop();
__nop();
GPIOB->BSRR |= GPIO_PIN_5;
GPIOB->BSRR |= GPIO_PIN_8;
GPIOC->ODR = LCD_RegValue;
GPIOB->BRR |= GPIO_PIN_5;
__nop();
__nop();
__nop();
GPIOB->BSRR |= GPIO_PIN_5;
GPIOB->BSRR |= GPIO_PIN_8;
}
/*******************************************************************************
* Function Name : LCD_ReadReg
* Description : Reads the selected LCD Register.
* Input : None
* Output : None
* Return : LCD Register Value.
*******************************************************************************/
u16 LCD_ReadReg(u8 LCD_Reg)
{
u16 temp;
GPIOB->BRR |= GPIO_PIN_9;
GPIOB->BRR |= GPIO_PIN_8;
GPIOB->BSRR |= GPIO_PIN_5;
GPIOC->ODR = LCD_Reg;
GPIOB->BRR |= GPIO_PIN_5;
__nop();
__nop();
__nop();
GPIOB->BSRR |= GPIO_PIN_5;
GPIOB->BSRR |= GPIO_PIN_8;
LCD_BusIn();
GPIOA->BRR |= GPIO_PIN_8;
__nop();
__nop();
__nop();
temp = GPIOC->IDR;
GPIOA->BSRR |= GPIO_PIN_8;
LCD_BusOut();
GPIOB->BSRR |= GPIO_PIN_9;
return temp;
}
/*******************************************************************************
* Function Name : LCD_WriteRAM_Prepare
* Description : Prepare to write to the LCD RAM.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void LCD_WriteRAM_Prepare(void)
{
GPIOB->BRR |= GPIO_PIN_9;
GPIOB->BRR |= GPIO_PIN_8;
GPIOB->BSRR |= GPIO_PIN_5;
GPIOC->ODR = R34;
GPIOB->BRR |= GPIO_PIN_5;
__nop();
__nop();
__nop();
GPIOB->BSRR |= GPIO_PIN_5;
GPIOB->BSRR |= GPIO_PIN_8;
__nop();
__nop();
__nop();
GPIOB->BSRR |= GPIO_PIN_9;
}
/*******************************************************************************
* Function Name : LCD_WriteRAM
* Description : Writes to the LCD RAM.
* Input : - RGB_Code: the pixel color in RGB mode (5-6-5).
* Output : None
* Return : None
*******************************************************************************/
void LCD_WriteRAM(u16 RGB_Code)
{
GPIOB->BRR |= GPIO_PIN_9;
GPIOB->BSRR |= GPIO_PIN_8;
GPIOB->BSRR |= GPIO_PIN_5;
GPIOC->ODR = RGB_Code;
GPIOB->BRR |= GPIO_PIN_5;
__nop();
__nop();
__nop();
GPIOB->BSRR |= GPIO_PIN_5;
GPIOB->BSRR |= GPIO_PIN_8;
__nop();
__nop();
__nop();
GPIOB->BSRR |= GPIO_PIN_9;
}
/*******************************************************************************
* Function Name : LCD_ReadRAM
* Description : Reads the LCD RAM.
* Input : None
* Output : None
* Return : LCD RAM Value.
*******************************************************************************/
u16 LCD_ReadRAM(void)
{
u16 temp;
GPIOB->BRR |= GPIO_PIN_9;
GPIOB->BRR |= GPIO_PIN_8;
GPIOB->BSRR |= GPIO_PIN_5;
GPIOC->ODR = R34;
GPIOB->BRR |= GPIO_PIN_5;
__nop();
__nop();
__nop();
GPIOB->BSRR |= GPIO_PIN_5;
GPIOB->BSRR |= GPIO_PIN_8;
LCD_BusIn();
GPIOA->BRR |= GPIO_PIN_8;
__nop();
__nop();
__nop();
temp = GPIOC->IDR;
GPIOA->BSRR |= GPIO_PIN_8;
LCD_BusOut();
GPIOB->BSRR |= GPIO_PIN_9;
return temp;
}
/*******************************************************************************
* Function Name : LCD_PowerOn
* Description : Power on the LCD.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void LCD_PowerOn(void)
{
LCD_WriteReg(R16, 0x0000);
LCD_WriteReg(R17, 0x0000);
LCD_WriteReg(R18, 0x0000);
LCD_WriteReg(R19, 0x0000);
Delay_LCD(20);
LCD_WriteReg(R16, 0x17B0);
LCD_WriteReg(R17, 0x0137);
Delay_LCD(5);
LCD_WriteReg(R18, 0x0139);
Delay_LCD(5);
LCD_WriteReg(R19, 0x1d00);
LCD_WriteReg(R41, 0x0013);
Delay_LCD(5);
LCD_WriteReg(R7, 0x0173);
}
/*******************************************************************************
* Function Name : LCD_DisplayOn
* Description : Enables the Display.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void LCD_DisplayOn(void)
{
LCD_WriteReg(R7, 0x0173);
}
/*******************************************************************************
* Function Name : LCD_DisplayOff
* Description : Disables the Display.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void LCD_DisplayOff(void)
{
LCD_WriteReg(R7, 0x0);
}
/*******************************************************************************
* Function Name : LCD_CtrlLinesConfig
* Description : Configures LCD Control lines.
Push-Pull mode.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void LCD_CtrlLinesConfig(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
GPIO_InitStruct.Pin = GPIO_PIN_5 | GPIO_PIN_8 | GPIO_PIN_9;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_8 ;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
LCD_BusOut();
GPIOA->BSRR |= 0x0100;
GPIOB->BSRR |= 0x0220;
}
/*******************************************************************************
* Function Name : LCD_BusIn
* Description : Configures the Parallel interface for LCD(PortC)
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void LCD_BusIn(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
GPIO_InitStruct.Pin = GPIO_PIN_All;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
}
/*******************************************************************************
* Function Name : LCD_BusOut
* Description : Configures the Parallel interface for LCD(PortC)
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void LCD_BusOut(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
GPIO_InitStruct.Pin = GPIO_PIN_All;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
}
/*******************************************************************************
* Function Name : LCD_DrawPicture
* Description : Displays a 16 color picture.
* Input : - picture: pointer to the picture array.
* Output : None
* Return : None
*******************************************************************************/
void LCD_DrawPicture(const u8* picture)
{
int index;
LCD_SetCursor(0x00, 0x0000);
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
for(index = 0; index < 76800; index++)
{
LCD_WriteRAM(picture[2*index+1]<<8|picture[2*index]);
}
}
可以看起来写的非常的不错，写了很多，其中我们要注意的有：
LCD_Init();
LCD_Clear(Blue);
LCD_SetBackColor(Blue);
LCD_SetTextColor(White);
LCD_DisplayStringLine(Line2, (uint8_t *)" LCD Test ");我们可以选择的行数有：
#define Line0 0
#define Line1 24
#define Line2 48
#define Line3 72
#define Line4 96
#define Line5 120
#define Line6 144
#define Line7 168
#define Line8 192
#define Line9 216还有我们可以选择的颜色，一般比赛要求背景是黑色，文字是白色，有时候要求你高尚字体展示，就要求比较高了，也就是改变一下背景色就可以了。
/* LCD color */
#define White 0xFFFF
#define Black 0x0000
#define Grey 0xF7DE
#define Blue 0x001F
#define Blue2 0x051F
#define Red 0xF800
#define Magenta 0xF81F
#define Green 0x07E0
#define Cyan 0x7FFF
#define Yellow 0xFFE0然后如何避免LCD与LED的冲突：
在void LCD_WriteReg(u8 LCD_Reg, u16 LCD_RegValue)
void LCD_WriteRAM_Prepare(void)
void LCD_WriteRAM(u16 RGB_Code)
添加：
unsigned short PCOUT = GPIOC->ODR;//开始的一段
GPIOC->ODR=PCOUT;//结束的一段
这样就非常的OK了；