All Questions
18
questions
0
votes
2
answers
338
views
Transmit error on CAN bus with MCP25625 boards
Setup: CAN bus with 2 nodes each with a microcontroller (CC26X2R1 LaunchXL evaluation board) and CAN controller with an integrated transceiver (MCP25625 click board).
I used the libraries for the ...
- 31
0
votes
0
answers
179
views
MCP25625 is not sending CAN messages out from chip
I was using MCP2515 and now I want to use MCP25625.
I connect the new chip MCP25625 and observe 1st SPI interface and it's working properly because I can read and write register correctly.
The CAN ...
3
votes
2
answers
3k
views
ATSAMC21 - CAN configuration - Nominal bit timing vs. data bit timing & time quanta calculation
I'm trying to configure the CAN bit rate of an ATSAMC21 to 125ksps in a CAN2.0B configuration.
However, after reading through the datasheet, the ASF documentation and the ATMEL start help I'm confused....
- 1,822
8
votes
2
answers
2k
views
Microchip documentation does not label CAN buss pins on micro controller pinout diagram
Link to the data sheet
I want to use Microchips DSPIC33FJ128GP802 in a new project and want to use the ECAN buss.
The problem ...
- 127
0
votes
1
answer
68
views
Interfacing CANSPI with problems
I am running a PIC18F with an HS oscillator of 40 MHz. The hardware is not the problem and all the connections are properly done. The microcontroller is connected to the MCP2510 (with a parallel ...
- 21
2
votes
1
answer
495
views
MCP25625 loopback mode reponse
In the loopback mode of the CAN MCP25625, if we load and send data on the TXB0 buffer, are we supposed to receive a RXB0 buffer ready and filled with data in the TXB0 buffer?
If yes, the following are ...
- 71
2
votes
1
answer
1k
views
CAN bus and UART interfering
I have a PIC18F4680, and I want to interface with an Ecan module and UART at the same time. I am sending the UART message correctly and reading the CAN bus properly, but when trying to do both things ...
- 21
2
votes
3
answers
10k
views
What is a CAN bus channel?
I'm a novice to CAN; however, I've hooked things up before via a CAN bus. From my point of view, it's all just fields of data. I'm trying to move away from my pure-C upbringing and embrace (however ...
- 3,284
4
votes
3
answers
5k
views
Using an MCU with built-in CAN controller vs. external CAN controller
I'm planning to use the Atmel ATSAMC21J18A microcontroller in an automation project which has a built-in CAN controller. The CAN bus network may contain 32 devices, each generating data packets in 1 ...
0
votes
1
answer
429
views
dsPic33f : How to interface ECAN with CAN High/Low Signal
I want to start communication between (dsPic33f) ECAN_Module & PCAN-USB ADAPTER
I have downloaded a demo code AN1249 from microchip website.
I am using Explorer-16 board for Testing.
Now the ...
- 249
0
votes
1
answer
3k
views
CAN protocol : How to start with CAN interface with Microcontroller [closed]
I want to communicate with VFD (variable frequency drive) via CAN open protocol.
I have never used CAN before. So can anyone Guide me from where Should I start with ? Any link or Suggestions would ...
- 249
0
votes
3
answers
808
views
Questions about CAN bus [closed]
I am using the PIC18F2680 built-in CAN module along with CAN MCP2551 transceivers, and I am using the plib library for CAN2510 functions.
My question are:
Should we use twisted pair wires (like take ...
5
votes
1
answer
2k
views
How do I set up both CAN modules on the PIC DSPIC33EP128GM604?
So I am in the midst of my first proper PIC project, and it has been interesting to say the least. The problem I'm having is setting up the CAN modules. The PIC I'm using has two ECAN modules. Using ...
- 1,831
0
votes
2
answers
4k
views
Eagle library for MCP2551
I need to make a PCB, and the only software I have is EAGLE. All the other parts are listed in my libraries, but where can I find a library that has MCP2551 (CAN transceiver)?
-2
votes
2
answers
2k
views
How to properly wire 2 CAN transceivers to the same CANH and CANL
I'm attempting to design a system with 2 CAN transceivers, a High speed and Low speed that use the same CANH and CANL lines, like so:
I was planning on using 4 MOSFETs or 4 Relays connected to the ...
- 1,825