STM32F103RC驱动12864-ST7565

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TLLED 发布时间：2018-10-27 18:34

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本帖最后由 TLLED 于 2018-10-27 18:33 编辑

折腾一下午，把LCD 12864驱动成， LCD模块没有资料，程序分享个大家。
一、硬件部分：
手工搭建硬件电路
1、显示模块焊接：

2、焊接完成

3、显示效果：

4、整体连接图

二、软件部分：
1、ST7565驱动部分程序代码：

void St7565_Port(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB , ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9|GPIO_Pin_10|GPIO_Pin_11|GPIO_Pin_12|GPIO_Pin_13|GPIO_Pin_14;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
}
void delay(uint16_t ms)
{
uint8_t j;
while(ms--)
for(j=0;j<=20;j++);
}
/************Serial*************/
void St7565_WriteCmd(uint8_t com)
{
uint8_t i,j;
lcd_cs_low();
lcd_a0_low();
lcd_sck_low();
for(i=0;i<8;i++)
{
j=com;
lcd_sck_low();
if( (com&0x80)==0x80)
{
lcd_sda_high();
}
else
{
lcd_sda_low();
}
lcd_sck_high();
com=j<<1;
}
lcd_cs_high();
lcd_a0_high();
}
void St7565_WriteDat(uint8_t dat)
{
uint8_t i,j;
lcd_cs_low(); //CS=0
lcd_a0_high(); //A0=1
lcd_sck_low();
for(i=0;i<8;i++)
{
j=dat;
lcd_sck_low();
if( (dat&0x80)==0x80 )
{
lcd_sda_high();
}
else
{
lcd_sda_low();
}
lcd_sck_high();
dat=j<<1;
}
lcd_cs_high();
lcd_a0_low();
}
void ClearDisplay()
{
uint8_t i,j;
for(i=0;i<8;i++)
{
St7565_WriteCmd(0xB0+i); // (Page = 0xB0)//???????
St7565_WriteCmd(0x10);
St7565_WriteCmd(0x00);
for(j=0;j<132;j++) //????????
{
St7565_WriteDat(0x00);
}
}
}
void Setadd(uint8_t xl,uint8_t yl)
{ uint8_t i;
i=xl&0x0f;
xl=(xl>>4)+0x10;
St7565_WriteCmd(0xb0+yl);
St7565_WriteCmd(xl);
St7565_WriteCmd(i);
}
/*******************ÏÔÊ¾8*16 ASCIIÂë****************/
void LCD_P8x16Str(unsigned char x,unsigned char y,unsigned char ch[])
{
unsigned char c=0,i=0,j=0;
while (ch[j]!='\0')
{
c =ch[j]-32;
if(x>0x7f)
{
x=0;
y++;
}
Setadd(x,y*2);
for(i=0;i<8;i++)
{
St7565_WriteDat(F8X16[c*16+i]);//Delay(10);
}
Setadd(x,y*2+1);
for(i=0;i<8;i++)
{
St7565_WriteDat(F8X16[c*16+i+8]); //Delay(10);
}
x+=8;
j++;
}
}
void Init_St7565(void)
{
St7565_Port();
lcd_rst_low();
delay(200);
lcd_rst_high();
delay(200);
St7565_WriteCmd(0xe2);//internal reset
St7565_WriteCmd(0xA3);//Bais set 1/9 bais
St7565_WriteCmd(0xA0);//ADC select 0xa0 normal 0xA1 reverse
St7565_WriteCmd(0xc8);//com output scan direction??com??????? 0xc0??????0xC8???¾???
/****Select internal resistor ratio****/
St7565_WriteCmd(0x2c);//????????????
St7565_WriteCmd(0x2e);//????????????2um
St7565_WriteCmd(0x2F);//
/**************************************/
St7565_WriteCmd(0x81);//???g????
St7565_WriteCmd(0x19);//????????J?????? ?????0x00-0x3f
St7565_WriteCmd(0x24);//????????J?????? ?????0x21-0x27 ?????????????U??????U??
St7565_WriteCmd(0xAF);//display lcd on
St7565_WriteCmd(0x40);//display start addr
ClearDisplay();
LCD_P8x16Str(0,0,"www.stmcu.org.cn");
LCD_P8x16Str(0,1,"LCD ID:ST7565");
LCD_P8x16Str(0,2,"MCU:STM32F103RC");
LCD_P8x16Str(0,3,"STMCU ID:TLLED");
}