Author |
Message |
Topic: [CANbus] communication between two nodes with PIC18F2580 |
Martinez_pt
Replies: 33
Views: 46413
|
Forum: General CCS C Discussion Posted: Tue Oct 28, 2008 9:06 pm Subject: [CANbus] communication between two nodes with PIC18F2580 |
Ok, it works perfectly!!!
With the two files on the post above you will get the following output, that is what i understand you wanted.
OUTPUT:
Rede CAN
Rede criada e iniciada.. ... |
Topic: [CANbus] communication between two nodes with PIC18F2580 |
Martinez_pt
Replies: 33
Views: 46413
|
Forum: General CCS C Discussion Posted: Tue Oct 28, 2008 6:27 pm Subject: [CANbus] communication between two nodes with PIC18F2580 |
Hi, Ambrogio.
Do you think I could use the same 20 MHz oscillator for both PICs?
A
I'm not sure if that is possible!
http://en.wikipedia.org/wiki/Crystal_oscillator
http://www ... |
Topic: [CANbus] communication between two nodes with PIC18F2580 |
Martinez_pt
Replies: 33
Views: 46413
|
Forum: General CCS C Discussion Posted: Mon Oct 27, 2008 8:30 pm Subject: [CANbus] communication between two nodes with PIC18F2580 |
Hi, Ambrogio.
Have you tried to make it work with the PICs internal oscillator?
No, I didn't. I have used an external oscillator 20 MHz.
I'll try to make your SW objective work.
If I was ... |
Topic: [CANbus] communication between two nodes with PIC18F2580 |
Martinez_pt
Replies: 33
Views: 46413
|
Forum: General CCS C Discussion Posted: Mon Oct 27, 2008 1:13 pm Subject: [CANbus] communication between two nodes with PIC18F2580 |
Hi, Ambrogio.
I think you should not use the led on RX CAN that way, because MCP 2551 RX pin or RX CAN pin from PIC will absorb the current from the led. I know that is only 1 mA by the resistor ... |
Topic: [CANbus] communication between two nodes with PIC18F2580 |
Martinez_pt
Replies: 33
Views: 46413
|
Forum: General CCS C Discussion Posted: Sun Oct 26, 2008 11:46 pm Subject: [CANbus] communication between two nodes with PIC18F2580 |
Ok, I got it work.
I used the CCS EX_CAN.C example and it works fine for me.
I can communicate between two boards (18F4580 or 18F4480 + MCP 2551) over the CAN Bus.
I think your problem is on ... |
Topic: [CANbus] communication between two nodes with PIC18F2580 |
Martinez_pt
Replies: 33
Views: 46413
|
Forum: General CCS C Discussion Posted: Thu Oct 02, 2008 9:31 pm Subject: [CANbus] communication between two nodes with PIC18F2580 |
The bootloader was to program the PIC over the board, so I don't have to take it off and use a PIC flash.
Anyway I already got it to work with Tiny PIC Bootloader.
Make some changes on *asm file ... |
Topic: [CANbus] communication between two nodes with PIC18F2580 |
Martinez_pt
Replies: 33
Views: 46413
|
Forum: General CCS C Discussion Posted: Wed Oct 01, 2008 2:11 pm Subject: [CANbus] communication between two nodes with PIC18F2580 |
Hi ambrojohn.
Do you have a bootloader for your PIC?
I tried the microchip AP the bootloader they provide it's for older models.
Thank you. |
Topic: [CANbus] communication between two nodes with PIC18F2580 |
Martinez_pt
Replies: 33
Views: 46413
|
Forum: General CCS C Discussion Posted: Mon Sep 29, 2008 5:33 pm Subject: [CANbus] communication between two nodes with PIC18F2580 |
Thank you ambrojohn!!
Now I can compile the examples.
I'll try the example on loopback mode, then I'll try something like you, connect two boards with PIC 18F4580 + MCP2551.
Two more days and ... |
Topic: [CANbus] communication between two nodes with PIC18F2580 |
Martinez_pt
Replies: 33
Views: 46413
|
Forum: General CCS C Discussion Posted: Mon Sep 29, 2008 11:18 am Subject: [CANbus] communication between two nodes with PIC18F2580 |
Here is the output I get on the PC via rs232:
===========================================
Comunication Test with a CAN message
from NODE_1 to NODE_2 and back to NODE_1
================== ... |
Topic: [CANbus] communication between two nodes with PIC18F2580 |
Martinez_pt
Replies: 33
Views: 46413
|
Forum: General CCS C Discussion Posted: Mon Sep 29, 2008 11:06 am Subject: [CANbus] communication between two nodes with PIC18F2580 |
Hi ambrojohn, thank you for your quick response.
My PCWDH version is the following:
http://b.imagehost.org/0644/PCWHD.jpg
I'll try your suggestion.
Thank you again.
Martinez_pt |
Topic: [CANbus] communication between two nodes with PIC18F2580 |
Martinez_pt
Replies: 33
Views: 46413
|
Forum: General CCS C Discussion Posted: Sun Sep 28, 2008 10:31 pm Subject: [CANbus] communication between two nodes with PIC18F2580 |
Hello everyone.
I'm also trying to connect two boards using CANBUS.
Hardware: PIC 18F4580 + MCP2551.
Software: i'm using MPLAB and CCS.
My problem is i can't compile any one of the example ... |
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