[avr-gcc-list] LX-800 Printer driver

[Andi]

Hi,

 

Does anyone ever make a LX-800 printer driver for AVR ?
I make a code but it didn't work at all.

Here my code :

 

void InitPrinter(void)
{
//
 // Set Data Printer Direction as output
 DDRB = 0xFF;
 PORTB = 0;
 
 // Set Input BUSY signal
 cbi(DDRD,BUSY);
 sbi(PORTD,BUSY);

 

 // Set Output INIT signal
 sbi(DDRD,INIT);
 sbi(PORTD,INIT);

 

 // Set Output Strobe signal
 sbi(DDRD,STROBE);
 sbi(PORTD,STROBE);
 asm("nop");
 asm("nop");
 asm("nop");
 asm("nop");
 asm("nop");
 
 // Send INIT Signal
 cbi(PORTD,INIT);
 asm("nop");
 asm("nop");
 asm("nop");
 asm("nop");
 asm("nop");
 sbi(PORTD,INIT);
 asm("nop");
 asm("nop");
 asm("nop");
 asm("nop");
 asm("nop");
}

 

void SendCharToPrinter(unsigned char data)
{
//
 unsigned int timeout_print;
 
 // Check busy
 timeout_print = 0;
 while ((PIND & _BV(BUSY)) == 0){
  timeout_print++;
  if (timeout_print == MAX_BUSY_LOOP){
   return;
  }  
 }
 
 // Send Data
 PORTB = data;
 
 // Send Strobe Signal
 cbi(PORTD,STROBE);
 asm("nop");
 asm("nop");
 asm("nop");
 asm("nop");
 asm("nop");
 sbi(PORTD,STROBE);
 asm("nop");
 asm("nop");
 asm("nop");
 asm("nop");
 asm("nop");
 
}

void SendStringToPrinter(unsigned char *datastring)
{
//
 InitPrinter();
 
 while (*datastring)
 {
  SendCharToPrinter(datastring++);
 }
}

 

int main(void)
{
 
  SendStringToPrinter("System Ready !\r\n");
 
 for (;;){
 }
}

Anyone can help me ?

Thanks

 

Andi
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