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keypad to lcd4x20

 
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filjoa



Joined: 04 May 2008
Posts: 260

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keypad to lcd4x20
PostPosted: Tue Jun 24, 2008 8:50 am     Reply with quote
Hi

I try write on LCD 4x20 key how I press on my keypad

I make this program:

Code:

void main ()
{
   int8 c;
   int i;

lcd_init();
kbd_init();
i=0;

while(TRUE)
   {
   c = kbd_getc();

      if(c=='*' && i==0)
         {
         lcd_gotoxy(0,3);
         lcd_putc(" Insert: ");
         i=1;
         }
      if(c=='#' && i==1)
         {
         lcd_putc('\f');
         lcd_gotoxy(0,3);
         lcd_putc(" OK");
         i=0;
         }
      if(i==1 && c!='*')
         {
         lcd_gotoxy(8,3);
         lcd_putc(c);
         }
   }
}


but now I have 2 problems:

1º- on LCD appear "insert:" and "OK" but dont appear key press.
2º- I need give one space before write like that" Insert:" and " OK" if I dont put space before 1º char appear in other line...

PS: when I put this program write on terminal all work fine.

this is file LCD4x20(I make some modifications on line positions):

Code:

void lcd_gotoxy( BYTE x, BYTE y) {
   BYTE address;
              //lcd_gotoxy(1,1); linha 1
             //lcd_gotoxy(1,4); linha 2
             //lcd_gotoxy(1,2); linha 3
             //lcd_gotoxy(1,3); linha 4
   if(Y==0)
     address=0;
   if(y==1)
     address=0x40;
   if(y==2)
      address=0x14;
   if(y==3)
      address=0x54;
   address+=x-1;
   lcd_send_byte(0,0x80|address);
}



some one can help me?

regards
filjoa



Joined: 04 May 2008
Posts: 260

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PostPosted: Tue Jun 24, 2008 1:55 pm     Reply with quote
Hi

I find on this forum a new libary drivers for LCD and I used them

http://www.ccsinfo.com/forum/viewtopic.php?t=28268&highlight=flexible

but problem continue....

I cant write the numbers Crying or Very sad
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Tue Jun 24, 2008 2:05 pm     Reply with quote
Quote:
lcd_gotoxy(0,3);


The CCS lcd driver, and the also the Flex driver, do not use "0-based"
coordinates. The lowest coordinate value is 1.

For example, the 4 lines in a 20x4 LCD are numbered as: 1, 2, 3, 4.

You need to fix your code. Get rid of all the "0" coordinates.
filjoa



Joined: 04 May 2008
Posts: 260

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PostPosted: Tue Jun 24, 2008 6:13 pm     Reply with quote
Hi, thanks PCM programmer

now this is solved Laughing but I have a new problem.

I like make some like that:

click on '*' and after press one number and click on '*' and program write on LCD the key how I have pressed.
Code:


void ast()
{
int8 c;

do
{
   c = kbd_getc();
   if(c!=0)
   lcd_gotoxy(1,1);
   lcd_putc(c);
}while(c!='*');

lcd_putc('\f');

}

void card()
{

}


void main ()
{
   int8 c;

lcd_init();
kbd_init();

while(TRUE)
   {

   c = kbd_getc();
   if(c!=0)
      if((c=='*') || (c=='#'))
         {
         if(c=='*')
         {
         lcd_gotoxy(1,4);
         lcd_putc(" key:");
         ast();
         }
         if(c=='#')
         {
         lcd_gotoxy(1,4);
         lcd_putc(" key:");
         card();
         }
         }
       
   }
}

with this program when I press '*' one time on LCD appear all white and when I press for 2nd time it clean LCD.

if some one can help me ...

best regards
Wayne_



Joined: 10 Oct 2007
Posts: 681

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PostPosted: Wed Jun 25, 2008 2:14 am     Reply with quote
You are proberbly missing {}

Code:

do
{
   c = kbd_getc();
   if(c!=0) {        // <------------
     lcd_gotoxy(1,1);
     lcd_putc(c);
  }                    // <------------
}while(c!='*');


Indentation makes the code easier to read!
filjoa



Joined: 04 May 2008
Posts: 260

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PostPosted: Wed Jun 25, 2008 10:12 am     Reply with quote
Hi

thanks, problem solved Cool

now I try join 2 programs, idea is on LCD appear:

1ºline: IN: OUT:
2ºline: Voltage:
3ºline: GPS SPEED:
4ºline: keypad input:

keypad program:

Quote:

void card()
{
int8 c, ctemp;

do
{
c = kbd_getc();
if ((c=='0') || (c=='1') || (c=='2') || (c=='3') || (c=='4') || (c=='5') || (c=='6') || (c=='7') || (c=='8') || (c=='9'))
ctemp=c;

if(c!=0) {
lcd_gotoxy(6,4);
lcd_putc(ctemp);
}
}while(c!='#');

lcd_gotoxy(1,4);
if (ctemp=='1') lcd_putc("PC_ON ");
if (ctemp=='2') lcd_putc("INVERSOR ");
if (ctemp=='3') lcd_putc("DIAGNOSTICO ");
if (ctemp=='4') lcd_putc("LEDs INTERIORES ");
if (ctemp=='5') lcd_putc("LEDs EXTERIORES ");
if (ctemp=='6') lcd_putc("TV TUNER ");
if (ctemp=='7') lcd_putc("SONDA LAMBD ");
if (ctemp=='8') lcd_putc("opcao 8 ");
if (ctemp=='9') lcd_putc("opcao 9 ");
if (ctemp=='0') lcd_putc("PC_OFF ");


}

void ast()
{
int8 c, ctemp;

do
{
c = kbd_getc();
if(c!=0)
{
lcd_gotoxy(1,4);
if (c=='1') lcd_putc("PC_ON ");
if (c=='2') lcd_putc("INVERSOR ");
if (c=='3') lcd_putc("DIAGNOSTICO ");
if (c=='4') lcd_putc("LEDs INTERIORES ");
if (c=='5') lcd_putc("LEDs EXTERIORES ");
if (c=='6') lcd_putc("TV TUNER ");
if (c=='7') lcd_putc("SONDA LAMBD ");
if (c=='8') lcd_putc("opcao 8 ");
if (c=='9') lcd_putc("opcao 9 ");
if (c=='0') lcd_putc("PC_OFF ");
}
}while(c!='*');

lcd_gotoxy(1,4);
lcd_putc(" ");

}


void main ()
{
int8 c;

lcd_init();
kbd_init();

while(TRUE)
{

c = kbd_getc();
if(c!=0)
if((c=='*') || (c=='#'))
{
if(c=='*')
{
lcd_gotoxy(1,4);
lcd_putc("Insert key: ");
ast();
}
if(c=='#')
{
lcd_gotoxy(1,4);
lcd_putc("code: ");
card();
}
}

}
}



Temperature and voltage program:

Quote:

void ALARME()
{
output_high(SIRENE);
delay_ms(20000);
}


void main()
{

int i;
long TEMP_IN,TEMP_OUT;
float VOLT;


setup_adc_ports(AN0_AN1_AN3);
setup_adc(ADC_CLOCK_INTERNAL);
setup_psp(PSP_DISABLED);
setup_spi(SPI_SS_DISABLED);
setup_wdt(WDT_OFF);
setup_timer_0(RTCC_INTERNAL);
setup_timer_1(T1_DISABLED);
setup_timer_2(T2_DISABLED,0,1);
setup_timer_3(T3_DISABLED|T3_DIV_BY_1);


output_low(LUZ_FUNDO);
output_low(SIRENE);
output_low(PC_SINAL);
output_low(TURNOFF);

lcd_init();

While(1)
{
TEMP_IN=0;
TEMP_OUT=0;
VOLT=0;



if (input(PC_SINAL)==1)
{
output_high(LUZ_FUNDO);
}

if (input(PC_SINAL)==0)
{
output_low(LUZ_FUNDO);
output_low(SIRENE);
}

/*****************Calculos das ADC's*********************/

set_adc_channel(0);
delay_us(10);
for(i=0; i<=100; ++i) TEMP_IN=TEMP_IN+Read_ADC();
TEMP_IN=(TEMP_IN/100);

set_adc_channel(1);
delay_us(10);
for(i=0; i<=100; ++i) TEMP_OUT=TEMP_OUT+Read_ADC();
TEMP_OUT=TEMP_OUT/100;

set_adc_channel(2);
delay_us(10);
for(i=0; i<=100; ++i) VOLT=VOLT+Read_ADC();
VOLT=VOLT/1000;


lcd_gotoxy(1,1);
lcd_putc("IN:");
lcd_gotoxy(10,1);
lcd_putc("OUT:");
lcd_gotoxy(3,1);
printf(lcd_putc("%2luC"),TEMP_IN);
lcd_gotoxy(14,1);
printf(lcd_putc("%2luC"),TEMP_OUT);

//printf(lcd_putc, ("\fIN:%2luC OUT:%2luC \r"),TEMP_IN,TEMP_OUT);

lcd_gotoxy(1,2);
printf(lcd_putc, ("Voltagem: %2.1gV \r"),VOLT);

lcd_gotoxy(1,3);
printf(lcd_putc, ("linha 3 "));

lcd_gotoxy(1,4);
printf(lcd_putc, ("linha 4 "));



delay_ms(1000);


/********************ALARME DE BAT FRACA*********************************/

if(VOLT==11.5)
{
delay_ms(5000);
if (VOLT==11.5) ALARME();

if (VOLT==11.0)
{
output_high(TURNOFF);
delay_ms(1500);
output_low(LUZ_FUNDO);
output_low(SIRENE);
}
}


}
}



in this program I have one problem, where I have

Quote:

lcd_gotoxy(1,1);
lcd_putc("IN:");
lcd_gotoxy(10,1);
lcd_putc("OUT:");
lcd_gotoxy(3,1);
printf(lcd_putc("%2luC"),TEMP_IN);
lcd_gotoxy(14,1);
printf(lcd_putc("%2luC"),TEMP_OUT);


it dont appear value of TEMP_IN an TEMP_OUT, I need make this "printf(lcd_putc, ("\fIN:%2luC OUT:%2luC \r"),TEMP_IN,TEMP_OUT);" for see real values. why?

with this code appear on LCD "IN:%2luC OUT:%2luC" Confused


after I try join this two program for when I press "*" or "#" run keypad part..

some one can help me?

regards
SET



Joined: 15 Nov 2005
Posts: 161
Location: Glasgow, UK

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PostPosted: Wed Jun 25, 2008 1:29 pm     Reply with quote
Quote:
Code:
printf(lcd_putc("%2luC"),TEMP_IN);
lcd_gotoxy(14,1);
printf(lcd_putc("%2luC"),TEMP_OUT);


Dont you mean -

Code:
printf(lcd_putc, "%2luC", TEMP_IN);
lcd_gotoxy(14,1);
printf(lcd_putc, "%2luC", TEMP_OUT);
filjoa



Joined: 04 May 2008
Posts: 260

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PostPosted: Wed Jun 25, 2008 3:11 pm     Reply with quote
thanks for help SET this problem is solved...
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