void st7567_init(void)
{
u8 i,j;
spi_init();
ST_RST = 0;
delay_ms(2);
ST_RST = 1;
delay_ms(100);
ST_CSB = 0;
// spi_write_com(0xe2); //Soft rest
// spi_write_com(0xae); //显示
spi_write_com(0xa2); //SET LCD bias(A2-1/9bias; A3-1/7bias)
spi_write_com(0x25); //SET INTERNAL REGULATOR RESDASTOR RATIO(100B)-POR
//对比度调节(0-0x3f / 0-63)
spi_write_com(0x81); //前缀
spi_write_com(0x1a); // SET CONTRAST CONTROL REGISTER(00,0000H-11,1111H)
//打开电源
spi_write_com(0x2f); //SET POWER CONTROL REGISTER (ALL INTERNAL)
//设置扫描方向
spi_write_com(0xA0); //设置seg方向,seg0->seg131
spi_write_com(0xC8); //设置COM方向,0xc0=com0->com63 0xc8=com63->com0
spi_write_com(0xA6); //取消反显
spi_write_com(0xA4); //取消全显
// spi_write_com(0xA6+1); //反显
// spi_write_com(0xA4+1); //全显
spi_write_com(0x40); //设置起始行 0-63
// spi_write_com(0xB0); //设置页地址 0-8
//
// spi_write_com(0x10); //列地址高四位
// spi_write_com(0); //列地址低四位
// clear_screen(0xff);
for(i=0;i<8;i++)
{
spi_write_com(0xb0+i);
spi_write_com(0x10);
spi_write_com(0x00);
for(j=0;j<128;j++)
{
lcd_write_dat(0);
}
}
spi_write_com(0xaf); //开显示
}
void clear_screen(u8 xx)
{
u8 i,j;
for(i=0;i<8;i++)
{
spi_write_com(0xb0+i);
spi_write_com(0x10);
spi_write_com(0x00);
for(j=0;j<128;j++)
{
lcd_write_dat(xx);
}
}
}
void draw_pic(u8 *p_picture)
{
u8 i,j;
for(i=0;i<8;i++) //8页
{
spi_write_com(0xb0+i);
spi_write_com(0x10);
spi_write_com(0x00);
for(j=0;j<128;j++)
{
lcd_write_dat(*p_picture++);
}
}
}
/* writes both a command and data value to the lcd */
static void lcd_write(uint8_t cmd, uint8_t data)
{
lcd_write_cmd(cmd);
lcd_write_dat(data);
}
