跪求基于STM32F4主控HT1621B芯片驱动段码LCD的程序

2019-07-20 01:20发布

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4条回答

1楼-- · 2019-07-20 02:14

void lcddelay(uint32_t time)
{
do
{
time--;
}while(time>0);
}

void SendBit_1621(uint8_t data,uint8_t cnt) //data μÄ¸ßcntÎ»D′èëHT1621,¸ßÎ»ÔúÇ°
{
uint8_t i;
for(i=0;i<cnt;i++)
{
if((data&0x80)==0)
{
CLR_DAT();
}
else
{
SET_DAT();
}
Lcd1621delay();
CLR_WR();
Lcd1621delay();
SET_WR();
data<<=1;
}
}

void SendDataBit_1621(uint8_t data,uint8_t cnt) //data μÄμícntÎ»D′èëHT1621￡¬μíÎ»ÔúÇ°
{
uint8_t i;

for(i=0;i<cnt;i++)
{
if((data&0x01)==0)
{
CLR_DAT();
}
else
{
SET_DAT();
}
Lcd1621delay();
CLR_WR();
Lcd1621delay();
SET_WR();
data>>=1;
}
}

void SendCmd(uint8_t command)
{
SET_WR();
SET_DAT();
CLR_CS();
SendBit_1621(0x80,4); // D′èë±êÖ¾Î»Âë 100 oí9Î»command Ãüáî
SendBit_1621(command,8); //
SET_WR();
SET_DAT();
SET_CS();
}

void Write_1621(uint8_t addr,uint8_t data)
{
SET_WR();
SET_DAT();
CLR_CS();
SendBit_1621(0xa0,3);
SendBit_1621(addr,6);
SendDataBit_1621(data,4);
SET_WR();
SET_DAT();
SET_CS();
}

void WriteAll_1621(uint8_t addr,uint8_t *p,uint8_t cnt)
{
uint8_t i;
SET_WR();
SET_DAT();
CLR_CS();
SendBit_1621(0xa0,3); //high to low
SendBit_1621(addr,6);
for(i=0;i<cnt;i++)
{
SendDataBit_1621(*p,4); //low to high
p++;
}
SET_CS();
SET_WR();
SET_DAT();
SET_CS();
}

市场上很多假冒的HT1621，应特别注意初始化IO口后将三个通信口拉高