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artohautala
Joined: 17 Nov 2011
Posts: 187
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| any idea how to get work HOPE RF 12B module with PIC ? |
 Posted: Thu Aug 27, 2015 5:57 am |
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Hello Everybody,
I'm trying to develope RF link between two PIC controllers but no success...
So I have transmitter and receiver but they do not communicate together ...
My module is HOPE RF 12B...
Sure I have read all possible datasheets and tutorials but no success !
I followed this example demo:
https://www.sparkfun.com/datasheets/Wireless/General/RF12B_code.pdf
Is here anybody who made those modules really work in practice ?
I'll be happy if someone can help me ! javascript:emoticon(' ')
(The transmitter blinks led OK but it is not sure if it is still programmed OK
The receiver led blinks randomly .. and not very often it should blink in sync to transmitter ...)
have fun
-artohautala- |
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temtronic
Joined: 01 Jul 2010
Posts: 9244
Location: Greensville,Ontario
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| Posted: Thu Aug 27, 2015 6:49 am |
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Please post a link to the RF module you are using. Hopefully it'll say whether it's 5 volt or 3 volt. The link you supplied is a 2006 programming datasheet without physical specs, also you need antenna,power supply details etc.
As well show us your code. You could have a simple error in coding.
The more information you supply, the faster and better we can help.
Jay |
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temtronic
Joined: 01 Jul 2010
Posts: 9244
Location: Greensville,Ontario
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| Posted: Thu Aug 27, 2015 6:56 am |
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Here's a link from googling 'hope rf12b ccs code'
http://forum.jeelabs.net/node/91.html
About 1/2 way down there is working(well he says it is) code for a 16F690(?) PIC using CCS code.
I'd download, compile and confirm it has no errors THEN copy source to 'my_filename.c' files, then alter as required for your PIC type, xtal, etc.
Do NOT alter the original source files or you'll be sorry !!
Jay |
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Porter Oswin
Joined: 27 Aug 2015
Posts: 1
Location: Banned - spammer
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| Posted: Thu Aug 27, 2015 7:10 am |
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| temtronic wrote: | Here's a link from googling 'hope rf12b ccs code'
http://forum.jeelabs.net/node/91.html
About 1/2 way down there is working(well he says it is) code for a 16F690(?) PIC using CCS code.
I'd download, compile and confirm it has no errors THEN copy source to 'my_filename.c' files, then alter as required for your PIC type, xtal, etc.
Do NOT alter the original source files or you'll be sorry !!
Jay |
Well said, I hope that is understandable. |
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artohautala
Joined: 17 Nov 2011
Posts: 187
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| Posted: Thu Aug 27, 2015 8:57 am |
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| temtronic wrote: | Here's a link from googling 'hope rf12b ccs code'
http://forum.jeelabs.net/node/91.html
About 1/2 way down there is working(well he says it is) code for a 16F690(?) PIC using CCS code.
I'd download, compile and confirm it has no errors THEN copy source to 'my_filename.c' files, then alter as required for your PIC type, xtal, etc.
Do NOT alter the original source files or you'll be sorry !!
Jay |
Sorry what mean this :
Do NOT alter the original source files or you'll be sorry !!
???
here is my tx code:
| Code: |
#include <16F73.h>
#fuses HS,NOWDT,PUT
#use delay(clock = 10000000)
#define SDI PIN_B5
#define SDO PIN_B4
#define SCK PIN_B3
#define nSEL PIN_B2
#define LED PIN_A0
void Init_RF12(void); //init tx
void WriteCmd(int16 CMD);
void Write0(void);
void Write1(void);
void WriteFSKbyte(int16 data);
//*********************************************************************************************
void main(void){
int16 ChkSum;
int8 i = TRUE; //to avoid warning while(1)...
delay_ms(1000); //1s delay for startup
for( i = 0; i < 5; ++i){ //blink led 5 times for test
output_high(LED);
delay_ms(100);
output_low(LED);
delay_ms(100);
}
Init_RF12();
i = TRUE;
while(i){
ChkSum = 0;
WriteCMD(0x8228); //open PA
delay_us(4);
WriteCMD(0x8238);
delay_us(2);
WriteFSKbyte(0xAA);
WriteFSKbyte(0xAA);
WriteFSKbyte(0xAA);
WriteFSKbyte(0x2D);
WriteFSKbyte(0xD4);
WriteFSKbyte(0x30); //data 0
ChkSum += 0x30;
WriteFSKbyte(0x31); //data 1
ChkSum += 0x31;
WriteFSKbyte(0x32);
ChkSum += 0x32;
WriteFSKbyte(0x33);
ChkSum += 0x33;
WriteFSKbyte(0x34);
ChkSum += 0x34;
WriteFSKbyte(0x35);
ChkSum += 0x35;
WriteFSKbyte(0x36);
ChkSum += 0x36;
WriteFSKbyte(0x37);
ChkSum += 0x37;
WriteFSKbyte(0x38);
ChkSum += 0x38;
WriteFSKbyte(0x39);
ChkSum += 0x39;
WriteFSKbyte(0x3A);
ChkSum += 0x3A;
WriteFSKbyte(0x3B);
ChkSum += 0x3B;
WriteFSKbyte(0x3C);
ChkSum += 0x3C;
WriteFSKbyte(0x3D);
ChkSum += 0x3D;
WriteFSKbyte(0x3E);
ChkSum += 0x3E;
WriteFSKbyte(0x3F); //data 15
ChkSum += 0x3F;
ChkSum &= 0x0FF;
WriteFSKbyte(ChkSum);
WriteFSKbyte(0xAA);
WriteCMD(0x8208); //close PA
WriteCMD(0x8200); //receive END , EHKÄ SEND END ?! ????? S.14
//blink test led:
output_high(LED);
delay_ms(500);
output_low(LED);
delay_ms(1000);
}
}
//*********************************************************************************************
void Init_RF12(void){ //init lähetin !
output_low(LED);
output_high(nSEL);
output_high(SDI);
output_low(SCK);
//configuration setting command...80 = command
WriteCmd(0x80D8);
//turn on crystal !PA power management command
WriteCmd(0x8208);
/* frequence setting command ... taajuus 868.650 Mhz
868 band: Fc = 860 Mhz + F * 0.0050 Mhz , F = (Fc - 860 Mhz) / 0.0050 Mhz = 1730
= 0x6C2
*/
WriteCmd(0xA640);
/* data rate command:
kts. printti RFM12 tutorial-part3a s.9
*/
WriteCmd(0xC647); //bitrate 4800
WriteCmd(0xCC77); //PLL setting command, default value look at page 7 or 0xCC76?
WriteCmd(0x94A0); //VDI, FAST, 134 kHZ,0dBm -103 dBm (receiver control command ?)
WriteCmd(0xC2AC); //data filter command
WriteCmd(0xCA80); //FIFO and reset mode command
WriteCmd(0xCA83); //FIFO8, SYNC
WriteCmd(0xC49B); //AFC command
WriteCmd(0x9850); //!mp,9810 = 30 kHz, MAX OUT
WriteCmd(0xE000); //WAKEUP TIMER , NOT USED
WriteCmd(0xC80E); //low duty cycle command, NOT USED
WriteCmd(0xC000); //1,0 Mhz, 2.2 V
}
//*********************************************************************************************
void WriteCmd(int16 CMD){
int16 n = 16;
output_low(SCK);
output_low(nSEL);
while(n --){
if(CMD & 0x8000)
Write1();
else
Write0();
CMD = CMD << 1;
}
output_low(SCK);
output_high(nSEL);
}
//*********************************************************************************************
void Write0(void){
output_low(SCK);
delay_us(2);
output_low(SDI);
delay_us(15);
output_high(SCK);
delay_us(2);
}
//*********************************************************************************************
void Write1(void){
output_low(SCK);
delay_us(2);
output_high(SDI);
delay_us(15);
output_high(SCK);
delay_us(2);
}
//*********************************************************************************************
void WriteFSKbyte(int16 DATA){
int8 RGIT = 0;
int16 temp = 0xB800;
temp |= DATA;
Loop:
output_low(SCK);
output_low(nSEL);
output_low(SDI);
output_high(SCK);
if(input(SDO) ) //polling SDO
RGIT = 1;
else
RGIT = 0;
output_low(SCK);
output_high(SDI);
output_high(nSEL);
if(RGIT == 0)
goto loop;
else{
RGIT = 0;
WriteCMD(temp);
}
}
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//*********************************************************************************************
and here is my rx code:
| Code: |
#include <16F73.h>
#fuses HS,NOWDT,PUT
#use delay(clock = 10000000)
#define SDI PIN_B5
#define SDO PIN_B4
#define SCK PIN_B3
#define nSEL PIN_B2
#define nIRQ PIN_B1
#define LED PIN_A0
void Init_RF12_RX(void);
void Write0(void);
void Write1(void);
void WriteCmd(int16 CMD);
int8 RF12_RDFIFO(void);
int16 RX_RFBUF[19];
//*********************************************************************************************
void main(void){
int16 ChkSum;
int1 k = TRUE;
int8 i = 0; int8 j = 0;
Init_RF12_RX();
while(k){
while(!input(nIRQ)){
RX_RFBUF[i++] = RF12_RDFIFO();
if(i == 17){
i = 0;
WriteCmd(0xCA80); // ??
WriteCmd(0xCA83); // reset FIFO and read to receive nect Byte
ChkSum = 0;
for(j = 0; j < 16; j++)
ChkSum += RX_RFBUF[j]; //add 0x30 --------- 0x3F ????????
ChkSum &= 0x0FF;
if( ChkSum == RX_RFBUF[16]){
output_high(LED);
delay_ms(10);
output_low(LED);
delay_ms(10);
}
}
}
}
}
//*********************************************************************************************
void Init_RF12_RX(void){
output_low(LED);
output_high(nSEL);
output_high(SDI);
output_low(SCK);
output_low(SDO);
WriteCmd(0x80D8); //433 Mhz band
WriteCmd(0x82D8); //enable receive !PA
WriteCmd(0xA640);
WriteCmd(0xC647); //bitrate 4800
WriteCmd(0x94A0); //VDI, FAST, 134 kHZ,0dBm -103 dBm (receiver control command ?)
WriteCmd(0xC2AC); //data filter command
WriteCmd(0xCC77); // PLL setting command s. 7 RF12B V1.2 printti... 0xCC77 tai 0xCC76 ????
WriteCmd(0xCA80); //FIFO and reset mode command
WriteCmd(0xCA83); //FIFO8, SYNC
WriteCmd(0xC49B);
WriteCmd(0x9850); //!mp,9810 = 30 kHz, MAX OUT
WriteCmd(0xE000); //WAKEUP TIMER , NOT USED
WriteCmd(0xC800); //low duty command , NOT USED
WriteCmd(0xC000); //1.0 Mhz, 2,2 V
}
//*********************************************************************************************
void WriteCmd(int16 CMD){
int16 n = 16;
output_low(SCK);
output_low(nSEL);
while(n --){
if(CMD & 0x8000)
Write1();
else
Write0();
CMD = CMD << 1;
}
output_low(SCK);
output_high(nSEL);
}
//*********************************************************************************************
void Write0(void){
output_low(SCK);
delay_us(2);
output_low(SDI);
delay_us(15);
output_high(SCK);
delay_us(2);
}
//*********************************************************************************************
void Write1(void){
output_low(SCK);
delay_us(2);
output_high(SDI);
delay_us(15);
output_high(SCK);
delay_us(2);
}
//*********************************************************************************************
void WriteFSKbyte(int16 DATA){
int16 RGIT = 0;
int16 temp = 0xB800;
temp |= DATA;
Loop:
output_low(SCK);
output_low(nSEL);
output_low(SDI);
output_high(SCK);
if(input(SDO) ) //polling SDO
RGIT = 1;
else
RGIT = 0;
output_low(SCK);
output_high(SDI);
output_high(nSEL);
if(RGIT == 0)
goto loop;
else{
RGIT = 0;
WriteCMD(temp);
}
}
//*********************************************************************************************
int8 RF12_RDFIFO(void){
int8 i,Result;
output_low(SCK);
output_low(SDI);
output_low(nSEL);
for(i = 0; i < 16; i++){ //skip status Bits
output_high(SCK);
delay_us(2); //NOPs
output_low(SCK);
delay_us(2); //NOPs
}
Result = 0;
for(i = 0; i < 8; i++){ //read FIFO data Byte
Result = Result << 1;
if( input(SDO))
Result |= 1;
output_high(SCK);
delay_us(2); //NOPs
output_low(SCK);
delay_us(2);
}
output_high(nSEL);
return result;
}
//*********************************************************************************************
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temtronic
Joined: 01 Jul 2010
Posts: 9244
Location: Greensville,Ontario
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| Posted: Thu Aug 27, 2015 1:30 pm |
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re:
Sorry what mean this :
Do NOT alter the original source files or you'll be sorry !!
???
It means to always make a COPY of the original program and edit (alter) the COPY not the original program.
Jay |
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artohautala
Joined: 17 Nov 2011
Posts: 187
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| Posted: Thu Sep 10, 2015 5:41 am |
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| Porter Oswin wrote: | | temtronic wrote: | Here's a link from googling 'hope rf12b ccs code'
http://forum.jeelabs.net/node/91.html
About 1/2 way down there is working(well he says it is) code for a 16F690(?) PIC using CCS code.
I'd download, compile and confirm it has no errors THEN copy source to 'my_filename.c' files, then alter as required for your PIC type, xtal, etc.
Do NOT alter the original source files or you'll be sorry !!
Jay |
Well said, I hope that is understandable. |
Hello,
I can not to make it work ... where I can find this function : rf12_xfer(0xCE00 | group) ?
I'm not using standard SPI pins...
my pins are :
| Code: |
#include <16F73.h>
#fuses HS,NOWDT,PUT
#use delay(clock = 10000000)
#define SDI PIN_B5
#define SDO PIN_B4
#define SCK PIN_B3
#define nSEL PIN_B2
#define nIRQ PIN_B1
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so is it posibble to use those pins for spi communication or do I have to change my hardware?
I'll be very pleased if you can help me
best regards
-arto- |
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