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iruraz
Joined: 28 Jul 2009
Posts: 10
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| x10-communication |
 Posted: Mon May 10, 2010 2:00 pm |
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Hi Everyone,
I try to communicate with two pic using x10 protocol. There is a driver "x10.c" for tw523. The code which i wrote is below. I could send data but couldn't receive data with second pic. There is schema below. Where is the problem?
(U1 is transmitter, U2 is receiver. Pin B0 is using for zero-crossing)
transmitter:
| Code: |
#include <16f877.h>
#use delay (clock=7680000)
#use fast_io(b)
#include <X10.c>
#fuses XT,NOWDT,NOPROTECT,NOBROWNOUT,NOLVP,NOPUT,NOWRT,NODEBUG,NOCPD
void main()
{
setup_psp(PSP_DISABLED);
setup_spi(SPI_SS_DISABLED);
setup_timer_1(T1_DISABLED);
setup_adc_ports(NO_ANALOGS);
setup_adc(ADC_OFF);
set_tris_b(0x03);
while(1){
if(input(pin_a0)){
x10_write('M',15);
}
}
}
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receiver:
| Code: |
#include <16f877.h>
#use delay (clock=7680000)
#include <X10.c>
#use fast_io(b)
#fuses XT,NOWDT,NOPROTECT,NOBROWNOUT,NOLVP,NOPUT,NOWRT,NODEBUG,NOCPD
char house_code;
BYTE key_code;
void main(){
setup_psp(PSP_DISABLED);
setup_spi(SPI_SS_DISABLED);
setup_timer_1(T1_DISABLED);
setup_adc_ports(NO_ANALOGS);
setup_adc(ADC_OFF);
set_tris_b(0x03);
while(1){
output_high(pin_b7);
delay_ms(200);
output_low(pin_b7);
delay_ms(200);
while(x10_data_ready()){
x10_read(&house_code,&key_code);
if(house_code=='M'){
output_high(pin_b6);
delay_ms(500);
}
}
output_low(pin_b6);
}
}
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Mon May 10, 2010 3:03 pm |
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| Quote: | #include <16f877.h>
#use delay (clock=7680000)
#use fast_io(b)
#include <X10.c>
#fuses XT,NOWDT,NOPROTECT,NOBROWNOUT,NOLVP,NOPUT,NOWRT,NODEBUG,NOCPD |
Does Proteus simulate X-10 ?
But anyway, the maximum frequency for 'XT' oscillator is 4 MHz.
You need to use HS for 7.68 MHz. |
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iruraz
Joined: 28 Jul 2009
Posts: 10
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| Posted: Tue May 11, 2010 12:55 am |
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Thanks PCM Programmer. I changed xt as hs but simulation doesn't work correctly. You asked "Does Proteus simulate X-10 ? ".
| Code: |
BYTE x10_read_bits(BYTE n) {
BYTE data,i;
for(i=1;i<=n;++i) {
wait_for_zero_cross();
delay_us(300);
shift_right(&data,1,input(X10_TO_PIC));
wait_for_zero_cross();
delay_us(300);
}
data>>=8-n;
return(data);
}
void x10_read(BYTE *house_code,BYTE *key_code) {
port_b_pullups(TRUE);
x10_read_bits(2);
*house_code=x10_read_bits(4);
*house_code=X10_HOUSE_CODES[*house_code];
*key_code=x10_read_bits(5);
if(*key_code<16)
*key_code=X10_KEY_CODES[*key_code];
}
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There is no problem while sending "house code" and "key code". Only problem is reading received data. I thought that It reads input as "0" or "1" thus reading function constitute "house code" and "key code". Is it wrong idea?
Thanks for help... |
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kaplan
Joined: 13 Jan 2012
Posts: 3
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| X-10 |
| Posted: Fri Jan 13, 2012 6:39 am |
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Dear All
can anyone send me the simulation files and the code in C for the X10 protocol to my email address [email protected]. I need also the X10.c
thank you in advance
kind regards
kabalan CHACCOUR
Hardware design Engineer |
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temtronic
Joined: 01 Jul 2010
Posts: 9247
Location: Greensville,Ontario
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| Posted: Fri Jan 13, 2012 6:50 am |
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I really doubt anyone here has Proteus X-10 simulation files since Proteus is so full of bugs, errors and bad DRCs.
With respect to real CCS C X-10 code, they do supply example code located in the examples folder.
Your best action is get get some PICs and parts, wire up the correct schematic ,install CCS C code and experiment, don't waste valuable time on Proteus ! |
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kaplan
Joined: 13 Jan 2012
Posts: 3
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| Posted: Fri Jan 13, 2012 7:08 am |
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| Thank you for your kind reply. Where could I find the correct schematic ? |
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temtronic
Joined: 01 Jul 2010
Posts: 9247
Location: Greensville,Ontario
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| Posted: Fri Jan 13, 2012 3:40 pm |
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You could start by looking at the X-10 example that CCS kindly supplies and see what pins they have assigend to the various X-10 pins.
As for 'correct', there really is none. that's the nice thing about PICs, YOU can choose which pin does what function! What is 'correct' for me won't be for you, since I design PCBs 'old school'. It also matters what else the PIC has to do(LCD,KPD,USB,etc) as to actual pin layout. |
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Douglas Kennedy
Joined: 07 Sep 2003
Posts: 755
Location: Florida
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| Posted: Sat Jan 14, 2012 4:40 am |
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Well the two PIC's are communicating asynchronously. To make things worse the receiver has a half second delay in which it doesn't accept new data. The receiver must catch every X10 value to be reliable. I'd write an ISR on the receiver side and buffer the data into a circular buffer.
Alternatively replace the delays with timers so as to make them non blocking. As to Proteus it is never a substitute for a real circuit. Maybe as a learning tool it has some value but it brings with it the danger of a false positive. It worked in Proteus so they blame everything else if it doesn't work elsewhere. |
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kaplan
Joined: 13 Jan 2012
Posts: 3
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| Posted: Sat Jan 14, 2012 12:39 pm |
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Can anyone send me the x10.c file to include it in my program?
+++++++++++++++++++++++++++++
Do not ask this question. Forum rule #10:
10. Don't post the CCS example code or drivers, or ask for such code and drivers.
Forum Rules:
http://www.ccsinfo.com/forum/viewtopic.php?t=26245
- Forum Moderator
+++++++++++++++++++++++++++++ |
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dyeatman
Joined: 06 Sep 2003
Posts: 1937
Location: Norman, OK
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| Posted: Sat Jan 14, 2012 1:24 pm |
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Kaplan
If you have a legal CCS compiler you should already have the file
anyway. It has been distributed in the drivers directory with the
compiler since at least 2003 (before version 3.180). If you don't have
the file then are you likely using a very old, bootleg or incomplete
compiler. If you have a legal/registered CCS compiler then ask CCS
support for the file.
_________________
Google and Forum Search are some of your best tools!!!! |
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