u16 LCD_ReadData(void)
{
u16 m_value;
LCD_RS_SET;
LCD_WR_SET;
LCD_RD_CLR;
GPIOC->CRH = 0x44444444;
GPIOC->CRL = 0x44444444;
m_value=DATAIN;
m_value=DATAIN;//读取两次数据
GPIOC->CRH = 0x33333333;
GPIOC->CRL = 0x33333333;
LCD_RD_SET;
return m_value;
}
我不会用STM32,想问下懂的,下面这几句什么意思呢?
GPIOC->CRH = 0x44444444;
GPIOC->CRL = 0x44444444;
GPIOC->CRH = 0x33333333;
GPIOC->CRL = 0x33333333;
{
u16 m_value;
LCD_RS_SET;
LCD_WR_SET;
LCD_RD_CLR;
GPIOC->CRH = 0x44444444;
GPIOC->CRL = 0x44444444;
m_value=DATAIN;
m_value=DATAIN;//读取两次数据
GPIOC->CRH = 0x33333333;
GPIOC->CRL = 0x33333333;
LCD_RD_SET;
return m_value;
}
我不会用STM32,想问下懂的,下面这几句什么意思呢?
GPIOC->CRH = 0x44444444;
GPIOC->CRL = 0x44444444;
GPIOC->CRH = 0x33333333;
GPIOC->CRL = 0x33333333;