RC5 Code to ascii

[walid shogun]

Has anybody an idea how to convert rc5 code to ASCII
many thanks in advance
___________________________
This message was ported from CCS's old forum
Original Post ID: 13906

[Marcin]

This is full code to reactive all of IR codes.

#include <16F84A.H>
#fuses HS,NOPROTECT,NOWDT
#use delay(clock=12000000)
#include <lcd.c>
#define BUT PIN_A2
#DEFINE RED_LED PIN_A0
#define IR_SENSOR PIN_B0
#define RED_ON output_high(RED_LED)
#define RED_OFF output_low(RED_LED)
#define IR (!input(IR_SENSOR))

typedef struct
{
int8 bajt[6];
int8 std;
} int48;

int48 code;

pulse()
{
output_high(RED_LED);
delay_ms(200);
output_low(RED_LED);
}

int1 get_ir(void)
{
int16 tmp;
int t,t4,j,i,k,ofset;
short bit;
set_timer0(0);
while(IR==1);
t=get_timer0(); //RC-5 -> t=30-60
//Sony -> t=98-128
//NEC80 & REC80 -> t=155-185
tmp=0;
//NEC80 & REC80
if (code.std<2)
{
if (t>155) if (t<185);
else return (0);
if (code.std==0) ofset=5;
else ofset=3;
while(IR==0);
set_timer0(0);
while(IR==1);
t=get_timer0();
t=t*2;
t4=t*2;
for (i=0;i<((code.std==0) ? 48 : 32);i++)
{
set_timer0(0);
while(IR==0)
{
j=get_timer0();
if (j>t4) return (0);
}
k=ofset-(i/8);
code.bajt[k]<<=1;
if (j>t) code.bajt[k]++;
while(IR==1);
}
}
else
//RC-5
if (code.std==2)
{
if (t>30) if (t<60);
else return;
for (i=0;i<13;i++)
{
bit=IR;
set_timer0(0);
while (IR==bit)
{
j=get_timer0();
if (j>60) return (0);
}
tmp<<=1;
if (bit==0) tmp++;
set_timer0(0);
while (get_timer0()<53);
}
tmp=tmp | 0x3000; // add start bits
tmp=tmp & 0x37ff; // cut togle bit
}
//Sony-12 Sony-15
else
{
if (t>98) if (t<128);
else return;
for (i=0;i<((code.std==3) ? 15 : 12);i++)
{
set_timer0(0);
while(IR==0)
{
t=get_timer0();
if (t>100) return (0);
}
t=t+15;
set_timer0(0);
while(IR==1)
{
j=get_timer0();
if (t>100) return (0);
}
tmp<<=1;
if (j>t) tmp++;
}
}

if (code.std>1)
{
code.bajt[0]=tmp & 0xff;
tmp>>=8;
code.bajt[1]=tmp & 0xff;
}

//display code
lcd_putc("\f");
if (code.std<2)
{
if (code.std==0) printf(lcd_putc,"R80:\%X\%X",code.bajt[5],code.bajt[4]);
else lcd_putc("N80:");
printf(lcd_putc,"\%X\%X",code.bajt[3],code.bajt[2]);
}
else if (code.std==2) lcd_putc("RC5:");
else if (code.std==3) lcd_putc("S15:");
else lcd_putc("S12:");
printf(lcd_putc,"\%X\%X",code.bajt[1],code.bajt[0]);
pulse();
return (1);
}


#int_ext
interrupt()
{
get_ir();
}

recognize_code()
{
pulse();
disable_interrupts(int_ext);
code.std=0;
while(get_ir()==0)
{
delay_ms(100);
code.std++;
if (code.std>4) code.std=0;
while (IR==0);
}
pulse();
enable_interrupts(int_ext);
}

main()
{
lcd_init();
setup_timer_0(RTCC_INTERNAL|RTCC_DIV_64);
enable_interrupts(global|int_ext);
ext_int_edge(H_TO_L);
printf(lcd_putc,"\fOK");
while(1) if (input(BUT)==0) {pulse();recognize_code();}
}

Device: SFH506XX or TSOP17XX
where xx-frequency (recommended 38)
You must connect out pin from IR device to PIN_B0.
___________________________
This message was ported from CCS's old forum
Original Post ID: 13966

[jruibarroso]

Can you kindly convert this code only to read RC5 remotes and transform all code into a "driver" code to add to my project and ex. Code=read_remote() from main()
? Thank you in advance

[bsodmike]

I don't know about others around here, but I find that posts of this sort are best filed under the "Do my homework for me" forum :S

[jruibarroso]

this is no " do my homework for me " this is please help me because i don't know as much to do such a code

thank you anyway bsodmike

[rberek]

Well, how do you expect to learn enough to write this stuff if you never try to write any yourself?

As bsodmike pointed out, it is unlikely anybody will actually do this work for you. Most posts like this remain unanswered, or receive responses like this. If it is not important enough for you to put effort into it, it won't be important enough for anybody else either.

Make an honest attempt to make the changes to the code that you want, test the code, and then ask for help with specific issues. That what the forum is for.

I'm not trying to be mean, just trying to tell you why your last two posts have received little attention.

[jruibarroso]

for those who have dificulties like me , here's an good piece of code

http://www.loginway.com/rc5_decoder.htm

for those who have knowledgement and not want to share , keep it that way..