Search found 96 matches

Analyzing the given schematic below... you could be able to control the direction of TX and RX in RS485 communication without using any I/O pin from PICmicro.

Take note: the circuit is always in th ...

Scott,

That was a very good input. Actually, I am gathering information of what is not pain in the [spam] to do...

Anyway, I'll try your suggestion on my application.

Thank you.

Many ways to do it. For examples look here
http://www.google.com/search?hl=en&q=frequency+divider+circuit

I don't think a one-shot multivibrator will do the trick coz I'll be capturing a seri ...

The capture stores the timer1 value (or timer3 on some pics). At 20MHz the resolution is max 200ns. So technically 200ns is the smallest pulse. But this would be with a large error rate. With a 10 ...

Hi,

I just want to know. What is the smallest pulse width that can be captured using a 20MHz clock?.

What ways that can increase the resoultion of the capture module?

Need your feedback.

T ...

Hi PCM programmer,

I got the hardware working now... I am using the second post of my code which capture the high/low pulses and store it to an allocated buffers just what you've mention in this th ...

Hi PCM programmer,

Have you looked at the CCS example file, EX_CCPMP.C ?

To solve your problem, I would use a program similar to that,
and I would save the pulse durations in an array. This ...

Hi PCM Programmer,

What is the frequency of the waveform ?
The frequency varies from 10Hz to 1KHz or from 1mSec. to 10mSec.

Is the frequency constant, or does it change ?
No, the frequency va ...

Hi,

I made a test program for my capture interrupt module using 18F452 at 20MHz clock.

To test it I simulated a waveform with 61 falling edge and 61 rising edge. I use CCP1 only and inputted to ...

Hi,

I got a DS1307 driver from this forum. I guess this is from PCM Programmer.

The code below from http://www.ccsinfo.com/forum/viewtopic.php?t=19926&highlight=ds1307

void ds1307_set_dat ...

That would be in the code library. It is written for multi-master. It was not designed to read data back from slaves but rather send a command to the slave and have the slave turn around and transmi ...

That would be in the code library. It is written for multi-master. It was not designed to read data back from slaves but rather send a command to the slave and have the slave turn around and transmi ...

I understand there are mnay information about I2C in this forum. Anyway, my question: Is it possible to communicate two PIC one master and one slave using software based I2C implmentation?

Wud the ...

Hi,

I am planning to make a PICmicro Based Barcode Reader using the following:
1. 1022W or 1022WM barcode slot reader (TTL output undecoded)
2. PIC18F452 (using capcutre/compare module)
3. Barco ...

I've use the CCS Bootloader included with my compiler version 3.188

Ive modified the code from the original ex_bootloader.c

if(!input(PIN_B4))
load_program();
...