STM8 LCD602显示子程序

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楼主

jcky001|

楼主 | 2021-7-1 17:00 | 只看该作者回帖奖励

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STM8, LCD, LCD1602, pc, define, se

#define PORT_busy PB_DDR=0x00;PB_CR1=0xff;
#define busy PB_IDR

#define PORT_OUT PB_DDR=0xff;PB_CR1=0xff;
#define PORT PB_ODR
#define EN_SET sbi(PC_DDR,5);sbi(PC_CR1,5);sbi(PC_ODR,5);
#define EN_CLR sbi(PC_DDR,5);sbi(PC_CR1,5);cbi(PC_ODR,5);

#define RW_SET sbi(PC_DDR,6);sbi(PC_CR1,6);sbi(PC_ODR,6);
#define RW_CLR sbi(PC_DDR,6);sbi(PC_CR1,6);cbi(PC_ODR,6);

#define RS_SET sbi(PE_DDR,5);sbi(PE_CR1,5);sbi(PE_ODR,5);
#define RS_CLR sbi(PE_DDR,5);sbi(PE_CR1,5);cbi(PE_ODR,5);
_Bool lcd1602_busy(void)
{
_Bool result;
RS_CLR;
RW_SET;
EN_SET;
delay(5);
PORT_busy;
result=(busy & 0x80);
EN_CLR;
return result;
}

void lcd1602_write_com(u8 com)
{
while(lcd1602_busy());
RS_CLR;
RW_CLR;
EN_CLR;
PORT_OUT;
PORT=com;
EN_SET;
delay(5);
EN_CLR;
}

void lcd1602_write_data(u8 dat)
{
while(lcd1602_busy());
RS_SET;
RW_CLR;
EN_CLR;
PORT_OUT;
PORT=dat;
EN_SET;
delay(5);
EN_CLR;
}

void lcd1602_gotoxy(u8 x,u8 y)
{
u8 add;
if(y==0)
add=0x80+x;
else
add=0xc0+x;
lcd1602_write_com(add);

}

void lcd1602_init(void)
{
delay(100);
lcd1602_write_com(0x38);
lcd1602_write_com(0x0c);
lcd1602_write_com(0x06);
lcd1602_write_com(0x01);
}

void lcd1602_display(void)
{
for(num=0;num<12;num++)
{
lcd1602_write_data(table[num]);
delay(5);
}
}

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