how can set SEG1 COM3

[WHUNG.JOHN]

MY friends:
i think use ht1621 to control 32*4 LCD panel (32segs *4com)
i tried to writte program and still not display (seg1 com3) area .
can help me and tell me how to modify?
follow as:

#include <16F73.h>
#device adc=8
#FUSES NOWDT, XT, NOPUT, NOPROTECT, NOBROWNOUT
#use delay(clock=4000000)

#define DAT PIN_C7 // DT D0_74164 LCD DISPLAY
#define WR PIN_B0 //WR CLK_74164 LCD DISPLAY
#define cs pin_b1 //cs

#define bias 0x52
#define system 0x02
#define system_dis 0x00
#define lcdon 0x06
#define lcdoff 0x04
#define toneon 0x12
#define toneoff 0x10
#define test 0xc0
#define normal 0xc6
#define wdt1 0x0e


void sendbit_1621(unsigned char data,unsigned char cnt)
{
unsigned char i;

for (i=0;i<cnt;i++)
{
if ((data&0x80)==0) output_low(dAt);
else output_high(dAt);
output_low(wr);
//delay_ms(1);
output_high(wr);
data<<=1;

}
}

void senddatabit_1621(unsigned char data,unsigned char cnt)
{
unsigned char i;
for (i=0;i<cnt>>=1;


}
}

void lcd1621_init(void)
{

output_low(cs);

output_high(wr);
delay_ms(10);
output_low(wr);
delay_ms(10);
}


void sendcmd(unsigned char command)
{
lcd1621_init();
sendbit_1621(0x80,4);
sendbit_1621(command,8);
output_high(wr);
output_high(cs);
output_high(dat);

}


void write_1621(unsigned char addr,unsigned char data)
{
output_low(cs);
sendbit_1621(0xa0,3);
sendbit_1621(addr,6);
senddatabit_1621(data,4);
output_high(cs);
}

void writeall_1621(unsigned char addr,unsigned char *p,unsigned char cnt )
{
unsigned char i;
output_low(cs);
sendbit_1621(0xa0,3);
sendbit_1621(addr,6);
for (i=1;i<cnt;i++,p++)
{
senddatabit_1621(*p,8);
}
output_high(cs);
}


void write_74164(char eo)
{
unsigned int i;

for(i=1;i<=8;i++) { // Clock out bits from the eo array
if((((eo))& 0x80)==0)
output_low(DAT);
else
output_high(DAT);
shift_left(&eo,1,0);

output_low(WR);
output_high(WR);
}
}


void main()
{

unsigned char i,j;
sendcmd(wdt1);
sendcmd(bias);
sendcmd(system_dis);
sendcmd(system);
sendcmd(lcdoff);
sendcmd(lcdon);

write_1621(1,4); //get seg1 com3 area
while(1);
}

[SET]

You might be clocking the driver too quickly, data sheet says 3.3uS minimum read pulse width and 1.7uS write pw.