Search found 97 matches

Thank you.

For the reason of minimizing the hardware, keeping the designed circuit board as small as possible as well as minimizing the costs, I do not want to add an external oscillator or crystal ...

My pulses are between 1ms and 2ms. It is a standard RC receiver output.

The minimum pulse is not an issue, the incoming pulse never goes under 7-800us and the maximum never goes above 22-2300us.
...

I am happy with the resolution the 4Mhz provides.

So what is the maximum value I am looking for?

Thank you, no offense but that sounds like chinese to me Smile

So that all said the clock overflows at 65535.

I do not have a preset timer, I am assuming that would mean:

set_timer1(0xfffe) ...

Thank you,

so what is the value the timer 1 overflows at? The compiler says it will overflow every 13.1ms, which would be 13100 micro s.

S if I out an IF statement there to check the value of th ...

Thank you.

So my Timer 1 is defined as:

setup_timer_1(T1_INTERNAL|T1_DIV_BY_1); //13.1 ms overflow

and the oscillator is set to internal, 4Mhz:

setup_oscillator ...

Thank you,

so this is the code I came up with based on your reply:

#int_CCP1
void CCP1_isr(void)
{
If (!ccpflag){
rise = CCP_1;
ccpflag = ...

Hello,

I am working on a project where I have to accurately measure the width of an incoming pulse. I chose the PIC12F1840 for this project, it seems quite a versatile little PIC.

My compiler ve ...

Hello,

Thank you, that's what I thought, but that was not clarified in the CCS C Compiler Help file. Indeed the program example clears it - but the help file is confusing.

The Pulse I am measuri ...

Hello,

I am working with a PIC16F886 and trying to capture a set of pulses. I am looking at the help on the CCP and I see this:

Example Code:

#int_ccp1

void isr()
...

Hello

My project requires me to send 8-10 strings to the UART port of my PIC16F886 every 20ms.

Measuring the values requires about 10-12ms. Betwen 2 sets of values there is a sync period of 10ms ...

Yes, I knew that. However the blinking led is before the code gets to read the getc(). The getc() is in the while loop and the blinking code is before that. I think it should be executed before the co ...

Thank you. Now, the interesting part. If I put the 2 programs together first blinking the LED's and then run the RS232 test the led's will never blink but the characters I type will be echoed back on ...

Well that works on it's own as well. Only one thing to be noted though - if I try to change the baud rate to 38400 I get an error when I try to compile it:

Baud out of range

Why is that?

Well I tried that. However as soon as I start adding other lines of code - or as a matter of fact just simply enabling the RS232 - it stops again. IS it possible something is wrong with this chip?