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PannetierJ
Joined: 18 Jun 2017
Posts: 31
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 Posted: Fri Jul 14, 2017 9:00 am |
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Hy guys ,
I add a capacitor, directly on my module nrf24l01 ( 100 uF )
Same result....  |
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Ttelmah
Joined: 11 Mar 2010
Posts: 19590
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| Posted: Fri Jul 14, 2017 1:06 pm |
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| What about all the other things I asked/raised?. |
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PannetierJ
Joined: 18 Jun 2017
Posts: 31
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| Posted: Fri Jul 14, 2017 1:33 pm |
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I tested with external power supply.
No USB.
My RS232´s working correctly.
All power pins are connected. |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Fri Jul 14, 2017 2:25 pm |
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| Quote: | | I have a power supply with USB -> regulator 3,3V. |
I assume you get +5v from a USB connector. Is this from a laptop ?
Sometimes laptops shut off the USB power.
I think you should start experimenting. Get a real power supply.
Try increasing the power up delay. See if it helps. Add the line shown
in bold below to your receiver program. It has to be placed above the
#include statement for the nRF24L01.c driver. This will increase the delay
to 100 ms (it was 10 ms):
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#define RF24_PWUPDELAY() delay_ms(100) // *** FOR TESTING ***
#include <nRF24L01P.C> |
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Ttelmah
Joined: 11 Mar 2010
Posts: 19590
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| Posted: Fri Jul 14, 2017 2:41 pm |
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| He still has not answered that he is connecting all the PIC supply pins. It's common to have problems where people only connect one Vss or Vdd, and don't realise they are all needed. |
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PannetierJ
Joined: 18 Jun 2017
Posts: 31
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| Posted: Sat Jul 15, 2017 2:04 am |
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Hello PCM programmer,
- I have a real power supply.
- I add
| Quote: |
#define RF24_PWUPDELAY() delay_ms(100) // *** FOR TESTING ***
#include <nRF24L01P.C> |
-> Same result:
Config RX KO
Result: 2
- I tried with another module ... same result
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Sat Jul 15, 2017 4:55 pm |
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Post a link to the website where you bought these nRF24L01 modules.
Or at least tell us the manufacturer.
Post any markings that are on the modules or the nRF24L01 chips.
Or post sharp, hi-res photos of both sides. |
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PannetierJ
Joined: 18 Jun 2017
Posts: 31
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| Posted: Sun Jul 16, 2017 2:27 am |
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Hi,
I ordered on Amazon.
This modules are working perfectly between Arduino <-> Arduino.
This module look like it:
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Sun Jul 16, 2017 8:27 am |
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| Quote: | | This modules are working perfectly between Arduino <-> Arduino. |
So you also own two Arduino boards and have tested them working OK
with the nRF modules ?
That's significant information. I didn't know this before. I still had in
my mind the possibility that your nRF boards could be bad. But they
are good.
In that case, with these assumptions:
1. Eduardo's driver works.
2. We have fixed all problems with voltages, power supply current,
bypass capacitors, etc.
Then your problem must be:
1. Driver configuration.
or
2. Connections between the nRF boards and the PICs.
Regarding connections:
Do you know for a fact that the SPI communication is working ?
Have you ever written to an nRF register and then read back the same
byte correctly ? If not, such a test should be done. Write 0x55 and
read it back. Then test some other values.
| Quote: | | I ordered on Amazon. |
There are many identical appearing nRF boards on Amazon. Can you
provide a link to the one that you ordered ? |
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PannetierJ
Joined: 18 Jun 2017
Posts: 31
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| Posted: Sun Jul 16, 2017 9:06 am |
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Hi,
If I understand correctly your test, I must to write:
| Code: |
spi_write2(0x55);
Result = spi_read2(); // without parameter
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Isn't it ? |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Sun Jul 16, 2017 9:52 am |
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That's not good enough.
1. You have to write to a specific register. You haven't specified the
register.
2. There is only one SPI module in the 18LF2550. So spi_read2() will
not work. There is no SPI #2 in the PIC. I hope you have not edited
the driver to use spi_read2().
3. spi_read() requires a parameter (usually = 0x00) to generate the
SPI clock. With no parameter, there is no clock and there is no SPI
read operation by the master.
I will try to write a suitable register test routine. |
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PannetierJ
Joined: 18 Jun 2017
Posts: 31
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| Posted: Sun Jul 16, 2017 10:15 am |
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| I checked, I don't use spi_read2() into the driver. |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Sun Jul 16, 2017 11:40 am |
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Here is a register r/w test program. It uses your Transmitter board.
I used your PIC configuration and I followed the register r/w examples
in the nRF24L01.c driver file, so I think it should work.
I chose the SETUP_RETR register because all the bits are R/W.
Eduardo uses a very long name for it, SETUP_AUTORETRANSMISSION,
in his register enum, so I used that name too.
| Code: |
// Register r/w test for the Transmitter board
#include <18F2550.h>
#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 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)
#include <nRF24L01P.C>
//==============================
void main()
{
int8 result;
printf("Start\n\r");
RF24_initPorts();
RF24_disable();
RF24_comm(W_REGISTER|SETUP_AUTORETRANSMISSION, 0x55); // Write 0x55 to Retry reg
result = RF24_comm_in(R_REGISTER|SETUP_AUTORETRANSMISSION); // Read it back
printf("Wrote: 0x55, Read: %x \n\r", result); // Display it
RF24_comm(W_REGISTER|SETUP_AUTORETRANSMISSION, 0xAA); // Write 0xAA to Retry reg
result = RF24_comm_in(R_REGISTER|SETUP_AUTORETRANSMISSION); // Read it back
printf("Wrote: 0xAA, Read: %x \n\r", result); // Display it
printf("\n\rTest done \n\r");
while(TRUE);
} |
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PannetierJ
Joined: 18 Jun 2017
Posts: 31
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| Posted: Sun Jul 16, 2017 12:33 pm |
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Hy ,
I tested :
Start :
Wrote : 0x55 Read : 00
Wrote : 0xAA Read : 00
Test done |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Sun Jul 16, 2017 12:54 pm |
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Can you post a list of connections between the PIC board and the
nRF24L01 module ?
Or better, take a photo of the connections, so that all the pins can be
seen on both boards, and the wires can be traced visually by looking at
the photo. Then post the photo. |
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