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#include "LCD12864.h"
#include "U_Font.h"
uint8_t LCD12864_GRAM[1024]; /* LCD12864 顯存 */
/*=======================================================================================*/
void LCD12864_Init(void)
{
LCD12864_GPIO_Config();
LCD12864_Write_CMD(0x30); //選擇基本指令操作
LCD12864_Write_CMD(0x0c); //顯示開，關光標
LCD12864_Write_CMD(0x01); //清除LCD12864的顯示內容
}
void LCD12864_GPIO_Config(void)
{
GPIO_InitTypeDef h_GPIO_LCD12864;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOB,ENABLE);
h_GPIO_LCD12864.GPIO_Mode = GPIO_Mode_Out_PP;
h_GPIO_LCD12864.GPIO_Pin = LCD12864_RS_Pin|
LCD12864_RW_Pin|
LCD12864_EN_Pin;
h_GPIO_LCD12864.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(LCD12864_CMD_Port,&h_GPIO_LCD12864);
}
void LCD12864_DAT_Port_Switch_InPut(void) /*LCD12864 Dat Port 切換為輸入*/
{
GPIO_InitTypeDef h_GPIO_LCD12864;
h_GPIO_LCD12864.GPIO_Mode = GPIO_Mode_IPU;
h_GPIO_LCD12864.GPIO_Pin = GPIO_Pin_0|
GPIO_Pin_1|
GPIO_Pin_2|
GPIO_Pin_3|
GPIO_Pin_4|
GPIO_Pin_5|
GPIO_Pin_6|
GPIO_Pin_7;
GPIO_Init(LCD12864_DAT_Port,&h_GPIO_LCD12864);
}
void LCD12864_DAT_Port_Switch_OutPut(void) /*LCD12864 Dat Port 切換為輸出*/
{
GPIO_InitTypeDef h_GPIO_LCD12864;
h_GPIO_LCD12864.GPIO_Mode = GPIO_Mode_Out_PP;
h_GPIO_LCD12864.GPIO_Pin = GPIO_Pin_0|
GPIO_Pin_1|
GPIO_Pin_2|
GPIO_Pin_3|
GPIO_Pin_4|
GPIO_Pin_5|
GPIO_Pin_6|
GPIO_Pin_7;
h_GPIO_LCD12864.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(LCD12864_DAT_Port,&h_GPIO_LCD12864);
}
uint8_t LCD12864_Check_Busy(void)
{
uint8_t outTime;
LCD12864_RS_Low();
LCD12864_RW_High();
LCD12864_EN_High();
LCD12864_DAT_Port_Switch_InPut();
while((GPIO_ReadInputData(LCD12864_DAT_Port) & 0x80) == 0x80)
{
outTime++;
if(outTime > 100)
{
LCD12864_EN_Low();
return 1;
}
}
LCD12864_EN_Low();
return 0;
}
void LCD12864_Write_CMD(uint8_t cmd)
{
while(LCD12864_Check_Busy());
LCD12864_RS_Low();
LCD12864_RW_Low();
LCD12864_EN_Low();
LCD12864_DAT_Port_Switch_OutPut();
GPIO_Write(LCD12864_DAT_Port,(uint16_t)cmd);
LCD12864_EN_High();
LCD12864_EN_Low();
}
void LCD12864_Write_DAT(uint8_t dat)
{
while(LCD12864_Check_Busy());
LCD12864_RS_High();
LCD12864_RW_Low();
LCD12864_EN_Low();
LCD12864_DAT_Port_Switch_OutPut();
GPIO_Write(LCD12864_DAT_Port,(uint16_t)dat);
LCD12864_EN_High();
LCD12864_EN_Low();
}
/*=======================================================================================*/
void LCD12864_GRAM_SetPoint /* 畫點在LCD12864_GRAM里 */
(
uint8_t x, /* 點的坐標X 0~127 */
uint8_t y, /* 點的坐標Y 0~63 */
uint8_t color /* 點的顏色 0 or 1 */
)
{
if( x > 127 ) return;
if( y > 63 ) return;
if(color == 1)
{
LCD12864_GRAM[y*16+(x/8)] |= 0x80 >> (x % 8);
}
else
{
LCD12864_GRAM[y*16+(x/8)] &= ~(0x80 >> (x % 8));
}
}
void LCD12864_GRAM_Refresh(void) /* 用LCD12864_GRAM里的數據刷新LCD12864*/
{
uint16_t i,ii,count,count2;
count = 0;
count2 = 0;
LCD12864_Write_CMD(0x34);
for(ii=0;ii<32;ii++)
{
LCD12864_Write_CMD(0x80+ii);
LCD12864_Write_CMD(0x80);
for(i=0;i<8;i++)
{
LCD12864_Write_DAT(LCD12864_GRAM[count]);
LCD12864_Write_DAT(LCD12864_GRAM[count+1]);
count+=2;
}
for(i=8;i<16;i++)
{
LCD12864_Write_DAT(LCD12864_GRAM[count2+512]);
LCD12864_Write_DAT(LCD12864_GRAM[count2+1+512]);
count2+=2;
}
}
LCD12864_Write_CMD(0x36);
LCD12864_Write_CMD(0x30);
}
void LCD12864_Clear /* LCD12864清屏 */
(
uint8_t state /* LCD12864清屏的狀態 0x00 ~ 0xFF */
)
{
uint16_t i;
for(i=0;i<1024;i++)
{
LCD12864_GRAM[i] = state;
}
LCD12864_GRAM_Refresh();
}
void LCD12864_Show8X16_Char /* 顯示8*16像素大小的字符串 */
(
uint8_t x,
uint8_t y,
uint8_t chr
)
{
uint8_t i,ii;
uint8_t xx,yy;
uint8_t chrr;
chrr = chr - 32;
xx = x;
yy = y;
for(i=0;i<16;i++)
{
for(ii=0;ii<8;ii++)
{
if( ( ( ASCII_8X16[chrr * 16 + i] >> ii ) & 0x01 ) == 1 )
{
LCD12864_GRAM_SetPoint(xx+ii,yy+i,1);
}
else
{
LCD12864_GRAM_SetPoint(xx+ii,yy+i,0);
}
}
}
}
void LCD12864_GRAM_Show6X8_Char /* 顯示6*8像素大小的字符串 */
(
uint8_t x,
uint8_t y,
uint8_t chr
)
{
uint8_t i,ii;
chr -= 32;
for(i=0;i<6;i++)
{
for(ii=0;ii<8;ii++)
{
if( ( ( ASCII_6X6[chr*6+i] >> ii ) & 0x01 ) == 1)
{
LCD12864_GRAM_SetPoint(x+i,y+ii,1);
}
else
{
LCD12864_GRAM_SetPoint(x+i,y+ii,0);
}
}
}
}
void LCD12864_Show8X16_Str /* 顯示單個字符像素為8*16的字符串自帶刷新LCD12864*/
(
uint8_t x, /* 字符左上角起始坐標X */
uint8_t y, /* 字符左上角起始坐標Y */
uint8_t *str /* 要顯示的字符串 */
)
{
while(*str != '\0')
{
LCD12864_Show8X16_Char(x,y,*str);
x += 8;
str++;
}
LCD12864_GRAM_Refresh();
}
void LCD12864_Show6X8_Str /* 顯示單個字符像素為6*8的字符串自帶刷新LCD12864*/
(
uint8_t x, /* 字符左上角起始坐標X */
uint8_t y, /* 字符左上角起始坐標Y */
uint8_t *str /* 要顯示的字符串 */
)
{
while(*str != '\0')
{
LCD12864_GRAM_Show6X8_Char(x,y,*str);
x += 6;
str++;
}
LCD12864_GRAM_Refresh();
}
/*=======================================================================================*/

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