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Pret
Joined: 18 Jul 2006
Posts: 92
Location: Iasi, Romania
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 Posted: Sun Dec 07, 2014 6:28 pm |
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| I don't want to rewrite all the registers by hand to their default value. I was looking for a simple nRF command that is supposed to clear all regs to default at once. But I guess there isn't such command... |
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spilz
Joined: 30 Jan 2012
Posts: 220
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| Posted: Tue Dec 16, 2014 4:15 am |
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Hi Eduardo and everyone
Thanks for your code
Did someone find a way to compile it with PICC CCS V5.xxx ?
And do not have to switch to V4 |
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spilz
Joined: 30 Jan 2012
Posts: 220
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| Posted: Tue Dec 16, 2014 8:55 am |
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is there a way to convert :
| Code: | | rv=spi_xfer(RF24_SPI, comm1,commDS); |
by something like this :
| Code: | int i;
for(i=0;i<commDS;i++){
rv=spi_xfer(RF24_SPI, comm1);
}
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I know it's not exactly that, but I don't know how to do it
thanks for your help |
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40inD
Joined: 30 Jul 2007
Posts: 112
Location: Moscow, Russia
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| Posted: Thu Apr 16, 2015 9:21 am |
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| Which functions can be removed to simplify this driver if I need to work with it just like as radio transceiver to exchange several bytes between 2 devices? |
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40inD
Joined: 30 Jul 2007
Posts: 112
Location: Moscow, Russia
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| Posted: Fri Apr 24, 2015 4:19 am |
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| is it possible to use INT_EXT isr with RF24_IRQ_state() to wake up MCU and not polling IRQ pin all time? |
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onepiro
Joined: 26 May 2015
Posts: 1
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| Posted: Tue May 26, 2015 12:23 pm |
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| Hi. A simple example(rx-tx) and connection schematic one can share? I'm try simple tx and rx code in to library file but not work. |
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amanver
Joined: 06 May 2015
Posts: 4
Location: bonab
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| Posted: Fri May 29, 2015 2:49 am |
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hi.
please try the code in 4th page of this topic. |
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aaronik19
Joined: 25 Apr 2011
Posts: 297
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| Posted: Mon Jun 01, 2015 12:32 am |
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Thanks Eduardo, your work is very nice and very gentle that you shared this driver on the forum. I will try this driver in the coming days. I would like to ask, how many transceivers can be used on the network?
I saw this video on Youtube, and i would like to share it with you as an introduction. Although it is aimed to Arduino, it explains some basics of this transceiver. Referring to my question, the video mentioned that 6 tx and 1 rx can be used, but i am making a design where i need to have about 100 transceivers https://m.youtube.com/watch?v=BjId_6tlYvE |
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Eduardo__
Joined: 23 Nov 2011
Posts: 197
Location: Brazil
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| Posted: Mon Jun 01, 2015 7:13 am |
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Yes, you can use 100 transceivers in the same channel (or in different channels). But you must implement a protocol to handle with it!
_________________
Eduardo Guilherme Brandt |
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amanver
Joined: 06 May 2015
Posts: 4
Location: bonab
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| how to use in ccs only? |
| Posted: Sat Jun 06, 2015 5:56 am |
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hi all.
my question is that how i use example in 4th page in ccs compiler only?(that means not use mplab or any IDE)
when i create 2 project, one for receive and another for transfer and using the codes in the 4th page and compile, in the side of rx give me errors but transfer side compile very well.
the error is:
Undefined identifier STREAM_SPI
in .c file on RF24_xfer(comm); line
can anyone help me?
thanks a'lot.
ccs v4.130
microcontroller :18f452
--------------------------------------------------------------------------
when i change the micro controller to 16f628a the error acoure it is "Internal error-Contact CCS PPUSE |
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hassasian
Joined: 05 Jul 2015
Posts: 3
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| dezso's code for 16f628A |
| Posted: Wed Aug 05, 2015 1:54 pm |
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I'm using dezso's code for my homework. I edit a little his code. But I cannot light the reader led. Pls help. I send 1234 from sender. Then try to receive it from reader. But I cannot.
Here my receiver code.
| Code: | /*
* File: main.c
* Author: DevXP
*
* Created on March 8, 2013, 9:40 PM
*/
#include <16F628A.H>
#device ICD=TRUE
#device *=16
#FUSES NOWDT //No Watch Dog Timer
//#FUSES HS //High speed Osc (> 4mhz for PCM/PCH) (>10mhz for PCD)
#FUSES NOBROWNOUT //No brownout reset
#FUSES NOLVP //No low voltage prgming, B3(PIC16) or B5(PIC18) used for I/O
#use delay(internal=4000000)
#use rs232(baud=9600,parity=N,xmit=PIN_B2,rcv=PIN_B1,bits=8,stream=PORT1))
//---------------- change this for Rx/Tx-----------------------
//#define TX_Mode // setup as Rx
//#define TX_Mode // setup as Tx
//-------------------------------------------------------------
#define W_REGISTER 0x20
#define R_RX_PAYLOAD 0x61
#define W_TX_PAYLOAD 0xa0
//********** DEFINE PORT NAMES
#define SPI_MISO PIN_A4 //RC4; SPI
#define SPI_MOSI PIN_A3 //RC5; SPI
#define SPI_CLK PIN_A2 //RC3; SPI)
#define RF24_IRQ PIN_B0 //RA5; interrupcao nRF24L01+
#define RF24_CS PIN_A1 //RC1; chipselect nRF24L01+
#define RF24_CE PIN_A0 //RC2; chipEnable nRF24L01+
#define RF24_xfer(xdata) bb_xfer(xdata) //Send/receive data through SPI
#define RTX_CSN_Low() output_low(RF24_CS) //Controls bit Chipselect
#define RTX_CSN_High() output_high(RF24_CS) //Controls bit Chipselect
#define RTX_CE_Low() output_low(RF24_CE) //Controls bit Chipenable
#define RTX_CE_High() output_high(RF24_CE) //Controls bit Chipenable
#define RF24_IRQ_state() !input(RF24_IRQ)
static int8 RF_DATA[4];
#define LED0 PIN_B4
#include <STDLIB.H>
/*******************************************************************************/
void pulse_CSN()
{
RTX_CSN_High();;
delay_us(20);
RTX_CSN_Low();
}
int bb_xfer(spi_data)
{
// SPI_MISO
// SPI_MOSI
// SPI_CLK
delay_us(50);
int rt;
int result = 0;
int1 d = 0;
for(rt=0;rt<8;rt++)
{
d = bit_test(spi_data,7-rt);
if(d)
{
output_high(SPI_MOSI);
}
else
{
output_low(SPI_MOSI);
}
delay_us(10);
output_high(SPI_CLK);
delay_us(60);
output_low(SPI_CLK);
delay_us(10);
if(input(SPI_MISO))
{
bit_set(result,6-rt);
}
else
{
bit_clear(result,6-rt);
}
}
output_low(SPI_MOSI);
return(result);
}
void configure_TX()
{
int i;
RTX_CSN_Low();
RTX_CE_Low();;
bb_xfer(W_REGISTER); // PTX, CRC enabled, mask a couple of ints
bb_xfer(0x38);
pulse_CSN();
delay_ms(2);
//-----------
bb_xfer(0x24); //auto retransmit off
bb_xfer(0x00);
pulse_CSN();;
//-----------
bb_xfer(0x23); //address width = 5
bb_xfer(0x03);
pulse_CSN();
//-----------
bb_xfer(0x26); //data rate = 1MB
bb_xfer(0x07);
pulse_CSN();
//-----------
bb_xfer(0x25); //set channel 2, this is default
bb_xfer(0x02);
pulse_CSN();
//-----------
bb_xfer(0x30); //set address E7E7E7E7E7
for(i=0;i<5;i++)
{
bb_xfer(0xe7);
}
pulse_CSN();
//----------------
bb_xfer(0x21); //disable auto-ack, RX mode
bb_xfer(0x00);
RTX_CSN_High();;
}
void configure_RX()
{
int i;
RTX_CSN_Low();
RTX_CE_Low();;
bb_xfer(W_REGISTER); //PRX, CRC enabled
bb_xfer(0x39);
pulse_CSN();
delay_ms(2);
//-----------
bb_xfer(0x21); //dissable auto-ack for all channels
bb_xfer(0x00);
pulse_CSN();
//-----------
bb_xfer(0x23); //address width = 5 bytes
bb_xfer(0x03);
pulse_CSN();
//-----------
bb_xfer(0x26); //data rate = 1MB
bb_xfer(0x07);
pulse_CSN();
//-----------
bb_xfer(0x31); //4 byte payload
bb_xfer(0x04);
pulse_CSN();
//-----------
bb_xfer(0x25); //set channel 2
bb_xfer(0x02);
pulse_CSN();
//-----------
bb_xfer(0x30); //set address E7E7E7E7E7
for(i=0;i<=5;i++)
{
bb_xfer(0xe7);
}
pulse_CSN();
//----------------
bb_xfer(W_REGISTER); //PWR_UP = 1
bb_xfer(0x3b);
RTX_CSN_High();;
RTX_CE_High();
}
void read_Data()
{
int i;
RTX_CSN_Low();
bb_xfer(R_RX_PAYLOAD); //Read RX payload
for(i=0;i<4;i++)
{
RF_DATA[i] = bb_xfer(0x00);
printf("%c",RF_DATA[i]);
}
printf("\n");
pulse_CSN();
//-----------
bb_xfer(0xe2); //Flush RX FIFO
pulse_CSN();
//-----------
bb_xfer(0x27); //reset int
bb_xfer(0x40);
RTX_CSN_High();
}
void transmit_Data()
{
int i;
RTX_CSN_High();
RTX_CSN_Low();
// printf("\n%u",bb_xfer(0x27)); //clear previous ints
bb_xfer(0x27);
bb_xfer(0x7e);
RTX_CSN_High();;
delay_us(20);
RTX_CSN_Low();
//-----------
bb_xfer(W_REGISTER); //PWR_UP = 1
bb_xfer(0x3a);
RTX_CSN_High();;
delay_us(20);
RTX_CSN_Low();
//-----------
bb_xfer(0xe1); //clear TX fifo
RTX_CSN_High();;
delay_us(20);
RTX_CSN_Low();
//-----------
// printf("\n%u",bb_xfer(0xa0)); //4 byte payload
bb_xfer(W_TX_PAYLOAD);
for(i=0;i<4;i++)
{
bb_xfer(RF_DATA[i]); //clock in payload
}
RTX_CSN_High();;
RTX_CE_High();
delay_us(50);
RTX_CE_Low();;
}
void main()
{
output_toggle(LED0);
RTX_CE_Low();
RTX_CSN_High();
printf("\nHello\n");
delay_ms(500);
output_toggle(LED0);
#if defined(TX_Mode)
configure_TX();
delay_ms(100);
while(true)
{
RF_Data[0]="1";
RF_Data[1]="2";
RF_Data[2]="3";
RF_Data[3]="4";
transmit_Data();
output_toggle(LED0);
delay_ms(500);
}
#else //must be rx :)
configure_RX();
delay_ms(100);
while(true)
{
if(!input(RF24_IRQ))
{
read_Data();
}
if(RF_Data[0]=="1")
{
output_toggle(LED0); }
delay_ms(250);
}
#endif
} |
here sender code
| Code: | /*
* File: main.c
* Author: DevXP
*
* Created on March 8, 2013, 9:40 PM
*/
#include <16F628A.H>
#device ICD=TRUE
#device *=16
#FUSES NOWDT //No Watch Dog Timer
//#FUSES HS //High speed Osc (> 4mhz for PCM/PCH) (>10mhz for PCD)
#FUSES NOBROWNOUT //No brownout reset
#FUSES NOLVP //No low voltage prgming, B3(PIC16) or B5(PIC18) used for I/O
#use delay(internal=4000000)
#use rs232(baud=9600,parity=N,xmit=PIN_B2,rcv=PIN_B1,bits=8,stream=PORT1))
//---------------- change this for Rx/Tx-----------------------
//#define TX_Mode // setup as Rx
#define TX_Mode // setup as Tx
//-------------------------------------------------------------
#define W_REGISTER 0x20
#define R_RX_PAYLOAD 0x61
#define W_TX_PAYLOAD 0xa0
//********** DEFINE PORT NAMES
#define SPI_MISO PIN_A4 //RC4; SPI
#define SPI_MOSI PIN_A3 //RC5; SPI
#define SPI_CLK PIN_A2 //RC3; SPI)
#define RF24_IRQ PIN_B0 //RA5; interrupcao nRF24L01+
#define RF24_CS PIN_A1 //RC1; chipselect nRF24L01+
#define RF24_CE PIN_A0 //RC2; chipEnable nRF24L01+
#define RF24_xfer(xdata) bb_xfer(xdata) //Send/receive data through SPI
#define RTX_CSN_Low() output_low(RF24_CS) //Controls bit Chipselect
#define RTX_CSN_High() output_high(RF24_CS) //Controls bit Chipselect
#define RTX_CE_Low() output_low(RF24_CE) //Controls bit Chipenable
#define RTX_CE_High() output_high(RF24_CE) //Controls bit Chipenable
#define RF24_IRQ_state() !input(RF24_IRQ)
static int8 RF_DATA[4];
#define LED0 PIN_B4
#include <STDLIB.H>
/*******************************************************************************/
void pulse_CSN()
{
RTX_CSN_High();;
delay_us(20);
RTX_CSN_Low();
}
int bb_xfer(spi_data)
{
// SPI_MISO
// SPI_MOSI
// SPI_CLK
delay_us(50);
int rt;
int result = 0;
int1 d = 0;
for(rt=0;rt<8;rt++)
{
d = bit_test(spi_data,7-rt);
if(d)
{
output_high(SPI_MOSI);
}
else
{
output_low(SPI_MOSI);
}
delay_us(10);
output_high(SPI_CLK);
delay_us(60);
output_low(SPI_CLK);
delay_us(10);
if(input(SPI_MISO))
{
bit_set(result,6-rt);
}
else
{
bit_clear(result,6-rt);
}
}
output_low(SPI_MOSI);
return(result);
}
void configure_TX()
{
int i;
RTX_CSN_Low();
RTX_CE_Low();;
bb_xfer(W_REGISTER); // PTX, CRC enabled, mask a couple of ints
bb_xfer(0x38);
pulse_CSN();
delay_ms(2);
//-----------
bb_xfer(0x24); //auto retransmit off
bb_xfer(0x00);
pulse_CSN();;
//-----------
bb_xfer(0x23); //address width = 5
bb_xfer(0x03);
pulse_CSN();
//-----------
bb_xfer(0x26); //data rate = 1MB
bb_xfer(0x07);
pulse_CSN();
//-----------
bb_xfer(0x25); //set channel 2, this is default
bb_xfer(0x02);
pulse_CSN();
//-----------
bb_xfer(0x30); //set address E7E7E7E7E7
for(i=0;i<5;i++)
{
bb_xfer(0xe7);
}
pulse_CSN();
//----------------
bb_xfer(0x21); //disable auto-ack, RX mode
bb_xfer(0x00);
RTX_CSN_High();;
}
void configure_RX()
{
int i;
RTX_CSN_Low();
RTX_CE_Low();;
bb_xfer(W_REGISTER); //PRX, CRC enabled
bb_xfer(0x39);
pulse_CSN();
delay_ms(2);
//-----------
bb_xfer(0x21); //dissable auto-ack for all channels
bb_xfer(0x00);
pulse_CSN();
//-----------
bb_xfer(0x23); //address width = 5 bytes
bb_xfer(0x03);
pulse_CSN();
//-----------
bb_xfer(0x26); //data rate = 1MB
bb_xfer(0x07);
pulse_CSN();
//-----------
bb_xfer(0x31); //4 byte payload
bb_xfer(0x04);
pulse_CSN();
//-----------
bb_xfer(0x25); //set channel 2
bb_xfer(0x02);
pulse_CSN();
//-----------
bb_xfer(0x30); //set address E7E7E7E7E7
for(i=0;i<=5;i++)
{
bb_xfer(0xe7);
}
pulse_CSN();
//----------------
bb_xfer(W_REGISTER); //PWR_UP = 1
bb_xfer(0x3b);
RTX_CSN_High();;
RTX_CE_High();
}
void read_Data()
{
int i;
RTX_CSN_Low();
bb_xfer(R_RX_PAYLOAD); //Read RX payload
for(i=0;i<4;i++)
{
RF_DATA[i] = bb_xfer(0x00);
printf("%c",RF_DATA[i]);
}
printf("\n");
pulse_CSN();
//-----------
bb_xfer(0xe2); //Flush RX FIFO
pulse_CSN();
//-----------
bb_xfer(0x27); //reset int
bb_xfer(0x40);
RTX_CSN_High();
}
void transmit_Data()
{
int i;
RTX_CSN_High();
RTX_CSN_Low();
// printf("\n%u",bb_xfer(0x27)); //clear previous ints
bb_xfer(0x27);
bb_xfer(0x7e);
RTX_CSN_High();;
delay_us(20);
RTX_CSN_Low();
//-----------
bb_xfer(W_REGISTER); //PWR_UP = 1
bb_xfer(0x3a);
RTX_CSN_High();;
delay_us(20);
RTX_CSN_Low();
//-----------
bb_xfer(0xe1); //clear TX fifo
RTX_CSN_High();;
delay_us(20);
RTX_CSN_Low();
//-----------
// printf("\n%u",bb_xfer(0xa0)); //4 byte payload
bb_xfer(W_TX_PAYLOAD);
for(i=0;i<4;i++)
{
bb_xfer(RF_DATA[i]); //clock in payload
}
RTX_CSN_High();;
RTX_CE_High();
delay_us(50);
RTX_CE_Low();;
}
void main()
{
output_toggle(LED0);
RTX_CE_Low();
RTX_CSN_High();
printf("\nHello\n");
delay_ms(500);
output_toggle(LED0);
#if defined(TX_Mode)
configure_TX();
delay_ms(100);
while(true)
{
RF_Data[0]="1";
RF_Data[1]="2";
RF_Data[2]="3";
RF_Data[3]="4";
transmit_Data();
output_toggle(LED0);
delay_ms(500);
}
#else //must be rx :)
configure_RX();
delay_ms(100);
while(true)
{
if(!input(RF24_IRQ))
{
read_Data();
}
output_toggle(LED0);
delay_ms(250);
}
#endif
}
|
on the sender the led is blinking. But on the receiver nothing happens |
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Eduardo__
Joined: 23 Nov 2011
Posts: 197
Location: Brazil
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| Re: how to use in ccs only? |
| Posted: Wed Aug 05, 2015 3:48 pm |
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How did you initialize SPI? It seems you not initialyzed correcly SPI.
e.g.:
#USE SPI(MASTER,DI=pin_C4,DO=pin_C5,CLK=pin_C3, BAUD=1000000, MODE=0, BITS=8, MSB_FIRST, STREAM=STREAM_SPI2) //this will set SPI in 4MHz(maximum for 16MHz Xtal. #Use SPI is a little buggy)
| amanver wrote: | hi all.
my question is that how i use example in 4th page in ccs compiler only?(that means not use mplab or any IDE)
when i create 2 project, one for receive and another for transfer and using the codes in the 4th page and compile, in the side of rx give me errors but transfer side compile very well.
the error is:
Undefined identifier STREAM_SPI
in .c file on RF24_xfer(comm); line
can anyone help me?
thanks a'lot.
ccs v4.130
microcontroller :18f452
--------------------------------------------------------------------------
when i change the micro controller to 16f628a the error acoure it is "Internal error-Contact CCS PPUSE |
_________________
Eduardo Guilherme Brandt |
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dezso
Joined: 04 Mar 2010
Posts: 102
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| Posted: Fri Aug 07, 2015 2:37 pm |
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My spi init code is in a separate file, I'll try to locate this project and update you.
Ty
_________________
I'm could be wrong many time's, at least I know what I'm doing  |
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hassasian
Joined: 05 Jul 2015
Posts: 3
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| thx for your reply. |
| Posted: Sat Aug 08, 2015 2:49 am |
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| I'm waiting for your answers. This is important for me. Thanks again. |
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dezso
Joined: 04 Mar 2010
Posts: 102
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| Posted: Sat Aug 08, 2015 3:08 pm |
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After checking this code now I see that I'm not using hardware SPI, its a simple bit-bang SPI communication.
If you use the F628A chip than it should work fine, if you using different chip than please check to be sure your ports are configured properly.
_________________
I'm could be wrong many time's, at least I know what I'm doing |
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