Hi,
I have found temporary solution to read the IR data. I have made a simple delay
routine that calculates the delay needed between two bits of the IR signal.
The Delay routine is as below :
void Delay_routine()
{
unsigned long Time_stamp;
/*Initially tp1.tv_nsec will contain the time stamp of the first bit.
Time stamp(in ns) of the next bit will be assigned to tp1.tv_nsec.*/
tp1.tv_nsec = tp1.tv_nsec+ 1728000; //1.728ms is the delay between
two bits.
/*needs to be converted in terms of us*/
Time_stamp = tp1.tv_nsec/10000;
/*loop will be executed until the time comes to read the next bit(i.e.
tp2.tv_nsec catches Time_stamp)*/
while((tp2.tv_nsec/10000) != Time_stamp)
{
clock_gettime (CLOCK_REALTIME, &tp2); //Call
clock_gettime to fill tp
}
return;
}
After this delay routine write the code to read the OUT_DATA register and
continuously call this delay routine after reading the register. Do this for
14 times, store 32 bit data and then extract bit no. 7 from each 14 data
values. Finally you will be having a bunch of 14 bits which will correspond to
the key pressed on remote.
>
> Hi Yan,
>
> Thank you very much for your response.
>
> I think, my problem is not with register. I tried to read both registers but
> nothing comes if I read IN_DATA register and something comes if I read
> OUT_DATA
> register.
> You might be knowing that IR signal cosists of a pulse train of 14 pulses
> (if any key is pressed on IR remote). These all pusles are written on the
> bit number 7 of OUT_DATA register with the time delay of 1.728ms. Now the
> problem is, when I continuously read 7th bit of OUT_DATA register, it gives
> some different values than what I found on CRO ( when some key is pressed on
> remote). So I think my problem is with the time delay at which I read 7th
> bit of OUT_DATA register.
>
> So will you guide me to solve this problem?
>
> Regards,
>
> Dhaval Lakkad
>
>
>
>> Read IN_DATA register instead of OUT_DATA register.
>>
>> -Yan
>>
>> Hi,
>>
>> I am using a custom board having DM6467. The board has an%
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