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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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 Posted: Wed May 03, 2017 5:57 pm |
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| sebcar wrote: |
I have to suppress commDS from spi_xfer to not have the error:
"Expression must evaluate a constant". |
That's because in modern versions of the CCS compiler, if you specify
hardware spi in the #use spi() statement, then CCS will only allow a
constant numeric value for the "number of bits" parameter in spi_xfer().
In other words, it gives an error for this:
| Code: | | rv=spi_xfer(RF24_SPI, comm1, commDS); |
But it will compile with this:
| Code: | | rv=spi_xfer(RF24_SPI, comm1, 8); |
But you don't have to worry about it. You can comment out the last
RF24_comm() function in that section of code. The last section is not used.
Comment it out, as shown below. Then it's no problem:
| Code: |
/*
int RF24_comm(int comm, int32 comm1, int32 commDS) { //commDS=datasize(1 to 32 bits)
int rv; //rv=return value(SPI nRF24 status read value)
RF24_select();
RF24_xfer(comm); //RF24 Write address/command(see RF24_addr addresses list tabble in .h file)
rv=spi_xfer(RF24_SPI, comm1, commDS); //Write config.value or command(1 to 32 bits of data)___I CANNOT USE RF24_xfer() ALIAS BECAUSE IT NOT ACCEPTS MORE THAN 1 PARAMETER
// rv=spi_read(); //It´s necessary due to spi_xfer read bug
RF24_unselect();
return rv; //Return last read value
}
*/
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| sebcar wrote: | #USE SPI(FORCE_SW, SPI2, MASTER, BAUD=1000000, MODE=0, BITS=8, MSB_FIRST, STREAM=STREAM_SPI2)
#define RF24_SPI STREAM_SPI2
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There are several problems in your #use spi() statement above:
1. There is no "SPI2" module in the 16LF88. That PIC only has SPI1.
2. It's better to use hardware SPI, because it's faster.
3. I see no need to rename the stream.
I changed it to this:
| Code: | #USE SPI(MASTER, SPI1, BAUD=1000000, MODE=0, BITS=8, MSB_FIRST, STREAM=RF24_SPI)
// #define RF24_SPI STREAM_SPI2 // Comment out, or delete this line.
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Then it should compile, though it will still give some warnings. |
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Eduardo__
Joined: 23 Nov 2011
Posts: 197
Location: Brazil
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| Re: Problem with PIC16LF88 |
| Posted: Wed May 03, 2017 7:10 pm |
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About the error "Expression must evaluate to a constante", probably you did not used the expression at the beginning of the program
Code:
#device PASS_STRINGS=IN_RAM
See later posts,.. someone have had the same problems than you and it was solved.
| sebcar wrote: | Dear Eduardo,
First, thank you for driver. However, it has been a long time since i have programed on PIC, and i did not manage to compile.
First I give my scheme:
[img]https://goo.gl/photos/4XMjeoEfiauCHvBMA[/img]
I use a PIC 16LF88, the internal oscillator at 4 MHz, ICSP and 3.3V PIC.
I program on CCS v 5.008.
Secondly I have this code:
.h File
| Code: |
#include <16F88.h>
#DEVICE *=16 ICD=TRUE PASS_STRINGS=IN_RAM
#device ADC=10
#FUSES NOWDT //No Watch Dog Timer
#FUSES PUT //Power Up Timer
#FUSES NOBROWNOUT //No brownout reset
#FUSES NOLVP //No low voltage prgming, B3(PIC16) or B5(PIC18) used for I/O
#use delay(internal=4MHz)
#use STANDARD_IO( A )
#use FIXED_IO( A_outputs=PIN_A2,PIN_A1 )
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The .c file:
| Code: |
#include <Domotique Pic.h>
//#USE SPI (MASTER, SPI1, ENABLE=PIN_B3, MODE=0, BITS=8, STREAM=RF24_SPI)
//#USE SPI(FORCE_SW , DI=PIN_B1, DO=PIN_B2, CLK=PIN_B4,ENABLE=PIN_B3, MASTER, MODE=0, BITS=8, MSB_FIRST, STREAM=STREAM_SPI)
#USE SPI(FORCE_SW, SPI2, MASTER, BAUD=1000000, MODE=0, BITS=8, MSB_FIRST, STREAM=STREAM_SPI2)
#define BatMes PIN_A0
#define DhCt PIN_A1
#define BatCt PIN_A2
#define DHT-11 PIN_A4
#define SPI_MISO PIN_B1
#define SPI_MOSI PIN_B2
#define RF24_CS PIN_B3
#define SPI_CLK PIN_B4
#define RF24_CE PIN_B5
#define RF24_IRQ PIN_B0
#define RF24_PERFORMANCE_MODE //performance mode ON
#define PGC PIN_B6
#define PGD PIN_B7
#define RF24_SPI STREAM_SPI2
#include <nRF24L01P.c>
void main()
{
setup_adc_ports(sAN0);
setup_adc(ADC_CLOCK_INTERNAL);
setup_timer_1(T1_INTERNAL|T1_DIV_BY_8); //2,0 s overflow
while(TRUE)
{
output_high(PIN_A7);
delay_ms(100);
output_low(PIN_A7);
delay_ms(100);
RF24_driver_use_example_TXdata_simple();
}
}
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My problem is that I have to make modification into driver to compile.
I changed the code on:
| Code: |
int RF24_comm(int comm, int32 comm1, int commDS) {
//commDS=datasize(1 to 32 bits)
int rv; //rv=return value(SPI nRF24 status read value)
RF24_select();
RF24_xfer(comm); //RF24 Write address/command (see RF24_addr addresses list tabble in .h file)
rv=spi_xfer(RF24_SPI, comm1); //Write config.value or command (1 to 32 bits of data)___I CANNOT USE RF24_xfer() ALIAS BECAUSE IT NOT ACCEPTS MORE THAN 1 PARAMETER rv=spi_xfer(RF24_SPI, comm1, commDS);
rv=spi_read2(); //It's necessary due to spi_xfer read bug
RF24_unselect();
return rv;
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I have to suppress commDS from spi_xfer to not have the error:
"Expression must evaluate a constant".
Second error:
In nrf24l01p.h i modify:
| Code: |
//Automated functions contemplated register.
enum RF24_STATUS { // **Status Register (In parallel to the SPI command word applied on the MOSI pin, the STATUS register is shifted serially out on the MISO pin)
IRQ_RX_dataready =0b01000000, // (0)Data Ready RX FIFO interrupt. Asserted when new data arrives RX FIFOc.Write 1 to clear bit.
IRQ_TX_datasent =0b00100000, // (0)Data Sent TX FIFO interrupt. Asserted when packet transmitted on TX. If AUTO_ACK is activated,this bit is set high only when ACK isreceived.Write 1 to clear bit.
IRQ_MAX_retransmit=0b00010000, // (0)Maximum number of TX retransmits interrupt Write 1 to clear bit. If asserted it must be cleared to enable further communication.
IRQ_ALL =0b01110000, // Allows clearing all IRQs at the same time
RX_PIPE0 =0b00000000, // (R)(bits 3:1)Data pipe number for the payload available for reading from RX_FIFO 000-101: Data Pipe Number
RX_PIPE1 =0b00000010, // (R)(bits 3:1)Data pipe number for the payload available for reading from RX_FIFO 000-101: Data Pipe Number
RX_PIPE2 =0b00000100, // (R)(bits 3:1)Data pipe number for the payload available for reading from RX_FIFO 000-101: Data Pipe Number
RX_PIPE3 =0b00000110, // (R)(bits 3:1)Data pipe number for the payload available for reading from RX_FIFO 000-101: Data Pipe Number
RX_PIPE4 =0b00001000, // (R)(bits 3:1)Data pipe number for the payload available for reading from RX_FIFO 000-101: Data Pipe Number
RX_PIPE5 =0b00001010, // (R)(bits 3:1)Data pipe number for the payload available for reading from RX_FIFO 000-101: Data Pipe Number
RX_BUFFER_EMPTY =0b00001110, // (R)Data pipe number for the payload available for reading from RX_FIFO 000-101: Data Pipe Number
TX_BUFFER_FULL2 =0b00000001 // (R)(0)TX FIFO full flag. 1: TX FIFO full. 0: Available locations in TX FIFO.
};
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I have to change TX_BUFFER_FULL to TX_BUFFER_FULL2 to not have the error:
"Identifier is already used in this scope".
Are there some more errors to correct to be able to communicate as soon as possible ? I want to communicate with a Raspberry.
Thank you a lot.
Sebastien, Pic Dummy. |
_________________
Eduardo Guilherme Brandt |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Wed May 03, 2017 8:03 pm |
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He has PASS_STRINGS=IN_RAM in his code. It's in the 2nd line of the .h file.
I really think the problem is as I described in my post. |
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sebcar
Joined: 03 May 2017
Posts: 8
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| Posted: Thu May 04, 2017 1:50 am |
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| Yes, i agree with PCM programmer. |
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sebcar
Joined: 03 May 2017
Posts: 8
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| Posted: Thu May 04, 2017 5:41 am |
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Hello,
It compiles now perfectly.
Nevertheless, each time i try to launch the code with a function of the library, it bugs and do not execute even function prior to the library one.
An idea |
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sebcar
Joined: 03 May 2017
Posts: 8
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| Posted: Thu May 04, 2017 6:20 am |
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| I found that my module is a fake nrf24l01. I wait for a true one and post a reply. |
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sebcar
Joined: 03 May 2017
Posts: 8
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| Posted: Wed May 10, 2017 7:25 am |
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It seems always blocked with not naked module.
I read that some person have problem with interrupt pin blocked to one and stopping the program.
Is it solved or not ?
I try to remove pull-up. |
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sebcar
Joined: 03 May 2017
Posts: 8
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| Posted: Wed May 10, 2017 8:13 am |
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| It seems that spi never try to communicate |
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sebcar
Joined: 03 May 2017
Posts: 8
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| Posted: Wed May 10, 2017 8:49 am |
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I try with CCS 4.
It seems to communicate now but still blocked |
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sebcar
Joined: 03 May 2017
Posts: 8
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| Posted: Thu May 11, 2017 9:51 am |
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Avec mon 16F, j'ai l'impression que l'INT ne repasse jamais à 0.
J'ai testé avec un 18F et là cela fonctionne.
Une idée?
--------------------------
Translation:
With my 16F, I feel that the INT never returns to 0.
I tested with an 18F and there it works.
An idea? |
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PannetierJ
Joined: 18 Jun 2017
Posts: 31
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| Error at the compilation |
| Posted: Sun Jun 18, 2017 11:19 am |
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Hello ,
I tried to use your library.
In the first time, I'm using Pcw 4.068
I commented this
// #include <spi_dma_PIC18F24J11.c> //PIC18F24J11 DMA driver(I have another topic with this driver. It´s not essential)
Now I have few error on the warning
-> Invalid Pre-Processor directive
Best regard |
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PannetierJ
Joined: 18 Jun 2017
Posts: 31
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| Posted: Sun Jun 18, 2017 2:23 pm |
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It's Ok .
I change my version of compiler.
Now it's Ok
Nevertheless, I have a second problem
Undefined STREAM_SPI2
Undefined --DMA_read
Undefined --DMA_start
Undefined -- DMA_is_busy |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Mon Jun 19, 2017 10:02 am |
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| PannetierJ wrote: | Nevertheless, I have a second problem
Undefined --DMA_read
Undefined --DMA_start
Undefined -- DMA_is_busy |
I'm trying to put bugs into my test program to re-create what you're doing.
So, I added this line at the top of the nRF24L01P.c file:
| Code: | | #define RF24_USE_DMA |
That caused me to get all these error messages:
| Quote: | *** Error 12 "C:\Program Files\PICC\...\nRF24L01P.c" Line 161(15,16): Undefined identifier -- DMA_read
*** Error 12 "C:\Program Files\PICC\...\nRF24L01P.c" Line 162(16,17): Undefined identifier -- DMA_start
*** Error 12 "C:\Program Files\PICC\...\nRF24L01P.c" Line 163(24,25): Undefined identifier -- DMA_is_busy
*** Error 12 "C:\Program Files\PICC\...\nRF24L01P.c" Line 180(16,17): Undefined identifier -- DMA_write
*** Error 12 "C:\Program Files\PICC\...\nRF24L01P.c" Line 181(16,17): Undefined identifier -- DMA_start
*** Error 12 "C:\Program Files\PICC\...\nRF24L01P.c" Line 182(24,25): Undefined identifier -- DMA_is_busy
*** Error 12 "C:\Program Files\PICC\...\nRF24L01P.c" Line 334(25,26): Undefined identifier -- DMA_default_config
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So remove this line. Get rid of it:
| Code: | | #define RF24_USE_DMA |
| PannetierJ wrote: | Nevertheless, I have a second problem
Undefined STREAM_SPI2
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Look at the end of this post. I explain how to fix that error message:
http://www.ccsinfo.com/forum/viewtopic.php?t=47351&start=269
Last edited by PCM programmer on Tue Jun 20, 2017 1:04 am; edited 1 time in total |
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PannetierJ
Joined: 18 Jun 2017
Posts: 31
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| Posted: Tue Jun 20, 2017 12:27 am |
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Hello,
Now it's ok.
I can compile my program, without error.
I remove #define RF24_USE_DMA
Thank you |
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PannetierJ
Joined: 18 Jun 2017
Posts: 31
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| Posted: Sat Jul 08, 2017 11:54 am |
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Hello,
Ok, now i'm trying step by step.
I have a module transmitter and Receiver.
I don't receive my message.
I'm checking with my oscilloscope. I have data on MOSI bus.
Code of Transmitter:
| Code: |
#include <18F2550.h>
#DEVICE *=16 /*ICD=TRUE*/
#device = PASS_STRINGS=IN_RAM //Admite ponteiros para constantes
#fuses HS,NOWDT,NOLVP,CPUDIV1
#use delay(clock=16000000)
#define RF24_SPI_DISABLE_WARNING //for disabling nRF24 SPI warning message.
#define Led_Send PIN_A3
#define Led_Init PIN_A4
//********** DEFINE PORT NAMES
#define SPI_MISO PIN_B0 //SPI(Usar por hardware quando possivel)
#define SPI_MOSI PIN_C7 //SPI(Usar por hardware quando possivel)
#define SPI_CLK PIN_B1 //SPI(Usar por hardware quando possivel)
//Driver nRF24L01P.C
#define RF24_IRQ PIN_B2 //interrupcao nRF24L01+
#define RF24_CS PIN_C1 //chipselect nRF24L01+
#define RF24_CE PIN_C2 //chipEnable nRF24L01+
#define RF24_PERFORMANCE_MODE //performance mode ON
#define RF24_SPI STREAM_SPI2//Redirects SPI2 port to RS24_SPI stream
#use SPI(MASTER,DI=SPI_MISO,DO=SPI_MOSI,CLK=SPI_CLK,BAUD=1000000,MODE=0,BITS=8,MSB_FIRST,STREAM=STREAM_SPI2)
//INCLUDES_2 - Drivers
#include <nRF24L01P.C> //Driver nRF24L01+ Single Chip 2.4GHz Transceiver Driver
//INCLUDES_3
#include <STDLIB.H>
void main()
{
output_high(Led_Init);
RF24_initPorts();
RF24_default_config();
RF24_TX_SET(); //Transmitter on
output_low(Led_Init);
while(true)
{
output_high(Led_Send);
RF24_TX_putbuffer(false,11,"Hello World");
output_low(Led_Send);
delay_ms(500);
}
}
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Code of my Receiver
| Code: |
#include <18F2550.h>
#DEVICE *=16 /*ICD=TRUE*/
#device = PASS_STRINGS=IN_RAM //Admite ponteiros para constantes
#fuses HS,NOWDT,NOLVP,CPUDIV1
#use delay(clock=16000000)
#use rs232(baud=9600,xmit=PIN_C6,rcv=PIN_C7,ERRORS)
#define RF24_SPI_DISABLE_WARNING //for disabling nRF24 SPI warning message.
//********** DEFINE PORT NAMES
#define SPI_MISO PIN_B0 //SPI(Usar por hardware quando possivel)
#define SPI_MOSI PIN_B3 //SPI(Usar por hardware quando possivel)
#define SPI_CLK PIN_B1 //SPI(Usar por hardware quando possivel)
//Driver nRF24L01P.C
#define RF24_IRQ PIN_B2 //interrupcao nRF24L01+
#define RF24_CS PIN_C1 //chipselect nRF24L01+
#define RF24_CE PIN_C2 //chipEnable nRF24L01+
#define RF24_PERFORMANCE_MODE //performance mode ON
#define RF24_SPI STREAM_SPI2//Redirects SPI2 port to RS24_SPI stream
#use SPI(MASTER,DI=SPI_MISO,DO=SPI_MOSI,CLK=SPI_CLK,BAUD=1000000,MODE=0,BITS=8,MSB_FIRST,STREAM=STREAM_SPI2)
//INCLUDES_2 - Drivers
#include <nRF24L01P.C> //Driver nRF24L01+ Single Chip 2.4GHz Transceiver Driver
//INCLUDES_3
#include <STDLIB.H>
void main()
{
int RXbuffer1[11];
int RXdatasize, RXpipe;
printf("Initialisation of system in progress\r\n");
RF24_initPorts();
RF24_default_config();
RF24_RX_SET(); //Transmitter on
printf("Initialisation of system\r\n");
RF24_RX_SET(); //Receiver on
while(true) {
while ( RF24_RX_getbuffer(&RXpipe, &RXdatasize, RXbuffer1)!=true );
printf(RXBuffer1[0]);
}
}
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I checked the data on my transmitter: MOSI bus:
The problem can be the config of my SPI ?
my Fuse ?
Thank you |
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