求各位大神帮忙，为什么我的段码液晶不显示？

junhui302040 · 发表于 2013-3-30 10:23:00

我用的是STM32RBT6，用HT1622驱动段码液晶显示，编译通过，软件仿真时候看到波形，为什么就是不显示？
以下程序，请指教，我新手。
int main(void)
{
  LCD_Init();
ht1622_init();
write1622(0x2A,0x00,0x04);

while (1)
   {
  write1622(0x2A,0x00,4);
     };
}

//?¨硬件
#define HT_CS_1 GPIOC->BSRR=GPIO_Pin_11 //PC.11--(LCD)/CS
#define HT_CS_0 GPIOC->BRR =GPIO_Pin_11
#define HT_WR_1 GPIOB->BSRR=GPIO_Pin_10 //PB.10--(LCD)/WR
#define HT_WR_0 GPIOB->BRR =GPIO_Pin_10
#define HT_DATA_1 GPIOB->BSRR=GPIO_Pin_11 //PB.11--(LCD)DATA
#define HT_DATA_0 GPIOB->BRR =GPIO_Pin_11
//#define DATAOUT GPIOD->ODR             //PD[0..7]--(LCD)D0~D7
#ifndef uchar
#define uchar unsigned char
#endif
#ifndef uint
#define uint unsigned int
#endif

void ht1622_init(void)
{
command1622(SYSDIS,8);//sys off
command1622(SYSEN,8);//sys on
command1622(LCDOFF,8);
command1622(LCDON,8);
command1622(RC32K,8);//?????????÷?¤×÷
command1622(WDTDIS,8);
}

/*********************************************************************************
* HT1622 operate funtion
********************************************************************************/

/************************     HT1622 read     ***********************************/
void read1622(char Raddress,char Rrampoint,char Rbytelength)
{
  char i;

  start();
  send(0xC0,3);// 110 commend
  send(Raddress,6);//add

  for(i=0;i<Rbytelength;i++)
   {
//   *RramPoint = receive();
   RramPoint++;
  }
  stop();
  return;
}

/************************   HT1622 write    **************************************/
void write1622(char Waddress,char WramPoint,char Wbytelength)
{
//char i;
start();
send(0xA0,3); //101
Waddress = Waddress <<2;
send(Waddress,6); //add
WramPoint = WramPoint <<4;
send(WramPoint,Wbytelength); //add
//send(WramPoint,Wbytelength);

//for(i=0;i<Wbytelength;i++)
  //{
  // send(WramPoint,8);
  // WramPoint++;
  //}
stop();
return;
}

/*************************    Commend    *****************************************/
void command1622(char CramPoint,char Cbytelength)
{
//char i;
start();
send(0x80,3);
send(CramPoint,Cbytelength);
//for(i=0;i<Cbytelength;i++)
//{
  //send(CramPoint,8);
  //send(0x01,1);
  //CramPoint++;
//}
send(0x80,1);
stop();
}

/************************* HT1622???± ***************************************/
void delay1622(void)
{
unsigned char i;
for(i=0;i<1000;i++);
return;
}

/*********************** receive data **********************************/
/*unsigned char receive(void)
{
unsigned char i,readbuffer;

IO_DDR = IO_DDR0 & 0x7F;
IO_DDR = IO_DDR0 & 0x7F;
IO_DDR = IO_DDR0 & 0x7F;
for(i=0;i<8;i++)
{
RD=LOW
}

}*/

/***********************   send data to buffer   **********************************/
void send(char writebuffer,char bitlength)
{
unsigned char i;
for(i = 0;i<bitlength;i++)
{
  delay1622();
  HT_WR_0;
  delay1622();
  if(writebuffer & 0x80) HT_DATA_1;
   else HT_DATA_0;
  writebuffer = writebuffer << 1;
  delay1622();
  HT_WR_1;
  delay1622();

}
return;
}

/************************ LCD×?±????÷ **************************************/
void start(void)
{
HT_CS_1;
HT_WR_1;
HT_DATA_1;
delay1622();
delay1622();
HT_CS_0;
delay1622();
return;
}

/********************************************************************************/
void stop(void)
{
HT_CS_1;
HT_WR_1;
HT_DATA_1;
delay1622();
return;
}

void show_all(void)
{
char i;
start();
send(0xA0,3);
send(0,6);
for(i=0;i<64;i++)
{
send(0x00,4);
}
stop();
}

void LCD_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;                     //?¨???á????
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOC, ENABLE);   //?ò??GPIOC?±??
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOB, ENABLE);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;                //????P
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;         //????
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;        //????
GPIO_Init(GPIOC, &GPIO_InitStructure);                   //?????è??

//GPIO_SetBits(GPIOC, GPIO_Pin_4); // turn off

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10 | GPIO_Pin_11;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);

//GPIO_SetBits(GPIOB, GPIO_Pin_10 | GPIO_Pin_11); // turn off
}

//HT1622   ?????ê?¨??
/*****************************************************************/
#define SYSDIS      0X00           // ???????????÷??LCD????·??ú?÷
#define SYSEN       0X01           // ?ò???????????÷
#define LCDOFF      0X02           // ??LCD????
#define LCDON       0X03           // ?ò??LCD????
#define TIMEDIS     0x04           // ?????±?ù????
#define WDTDIS      0x05           // ????WDT???±±ê??????
#define TIMEREN     0x08           // ?????±?ù????
#define WDTEN       0x0D           // ????WDT???±±ê??????
#define TONEOFF     0x0F           // ??±??ù??????
#define CLRTIMER    0x05           // ?????±?ù·??ú?÷??????
#define CLRWDT      0x0F           // ????WDT??????
#define RC32K       0x18           // ?????±??????????RC?????÷
#define EXT32K      0x1C           // ?????±???????????±????
#define TONE4K      0x40           // ??????????????4kHz??
#define TONE2K      0x60           // ??????????????2kHz??
#define IRQDIS      0x80           // ????IRQ????
#define IRQEN       0x88           // ????IRQ????