All Questions
21
questions
0
votes
0
answers
14
views
AT32F403AVGT7 how to set CAN baud rate for this controller
I am using AT32F403AVGT7 controller but I am not getting any CAN response due to incorrect baud rate. Does anyone know how to set baud rate for this controller? I will share my code below:
...
2
votes
0
answers
202
views
STM32F107 CAN software driver does not work
I am using ST drivers to use CAN bus on an STM22F107 according to the code below. It does not work. The code is as below and is available here.
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- 113
0
votes
2
answers
408
views
Problem interfacing SD card module and CAN bus MCP2515 module simultaneously on Arduino Uno
I am trying to log data received from a CAN bus to an SD card using an arduino Uno.
Each module works perfectly on its own, but when joining both modules together the CAN bus receives data normally, ...
1
vote
2
answers
5k
views
CANBUS Masking and Filtering
I am using a module to convert CAN to UART. This module has 2 programmable masks and 6 programmable filters.
There are 13 message IDs that come in over the CAN bus and I only want 9 of them. The IDs ...
- 95
0
votes
0
answers
638
views
Normal Mode of CAN Controller in STM32L476 Nucleo Board is Not Working
I am using STM32L476RG Nucleo board which contains only one CAN controller(bx_CAN1) and SN65HVD233 as a CAN Transceiver. I could able to test the CAN controller by using "LOOPBACK Mode".
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2
votes
1
answer
1k
views
STM32 Unexpected Interrupt causes program to jump in infinite loop
Struggling with this issue for days now and can't find a solution. Maybe someone saw something like this before and can give me a hint.
I have FreeRTOS running on an STM32L4 with different tasks. One ...
- 2,566
0
votes
1
answer
146
views
Approach to prevent Replay and spoofing attack on CAN protocol
I want to make an authentication system between 2 buses. In order to achieve that I use counter to avoid replay and hash to avoid spoof. The message must be sent in two phases. Is there any proper way ...
0
votes
1
answer
1k
views
STM32F103 bxCAN not working
I'm trying to make use of the bxCAN of STM32F103C8 on a bluepill but it doesn't work and I don't know what is the problem.I'm using the hal API
here is the main code in the while loop
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- 155
0
votes
1
answer
516
views
CAN bus malfunction on STM32F3
I create applications for STM32 F303RE for communication with the instrument panel. I managed to connect everything but I have some problems. I'm not sure if it's due to bad code or good performance. ...
- 31
1
vote
1
answer
736
views
NAK in CAN bus for STM32F3 uC
I have a problem with the NAK on the CAN bus. On STM32F303RE I wrote a code for communication via CAN bus with car dashboard (Instrument Panel Cluster). The communication works, I manage to receive ...
- 31
1
vote
1
answer
93
views
Canbus over canberry with raspberry pi two messages together at the same time
Im using a canberry with raspberry pi. Is there any way possible to send two messages at the same time with same id and be received by the other raspberry without any particular chance of getting a ...
2
votes
2
answers
3k
views
Sending a double type value over CAN Bus
I need help to send a double value using a CAN Bus.
I am working on a eletronic traction control and i need to send, by a CAN bus, the calculated values of speed of wheels. The problem start when the ...
- 23
3
votes
3
answers
6k
views
STM32 CAN bus receive interrupt is sometimes not fired, and CAN transmit sometimes times out
I have two STM32 boards connected via a CAN bus. They periodically transmit a message to each other.
For some transmissions however, HAL_CAN_Transmit returns with ...
- 45
4
votes
6
answers
2k
views
How to deal with signed int overflows
Brief background first; I have data from CAN bus of a steering angle which is obviously in hex. The steering angle covers two bytes of a message. The specification document I have says that those two ...
- 701
1
vote
0
answers
806
views
STM32F407VG DISCOVERY BOARD micro controller CAN messages
I am wondering if anyone is familiar with any STM32f407VG
micro-controllers?
If so, I am having some problems configuring a CAN driver.
I can run the demo code, which is set to a loop-back mode, but ...
- 11
1
vote
1
answer
75
views
Why CAN controller is causing fault codes
We have been working on a PCB project that has an atMega1281 AVR, MCP2515 CAN controller and MCP2551 Transceiver. We have the boards engineered and and the code is complete on the AVR. During testing, ...
- 135
0
votes
1
answer
5k
views
STM32F7 CAN message stuck in mailbox and error frames on bus
Since I am rather new to using CAN I'm not sure what information that is relevant but I will try and describe the best I can.
I have a STMF746 that I want to use the CAN bus on. I have PD0(CAN1_Rx), ...
- 185
1
vote
1
answer
430
views
NAK in CAN when programming stm32f407vg uC
I am getting NAK error in CAN communication. Not really sure why, also frame itself is quite strange as in program I am sending different things. I have got two devices and therefore I monitor 4 ...
- 121
2
votes
1
answer
160
views
Scheduling the transmision of CAN frames in an RTOS
I'm planning to use my STM32 board to send CAN frames. I implemented a simple scheduler that contains 10 tasks; one task will be responsible for sending frames. To do the job I declared a structure ...
- 183
0
votes
1
answer
4k
views
CAN bus acknowledgment error
I am using an STM32F429 CAN bus program with TJA1041A as the CAN transceiver. The problem is that the messages are not getting acknowledged, and herewith I am attaching the code for further reference. ...
2
votes
2
answers
898
views
Best method to transfer two int percentage values over a CAN bus
I have two integers:
int A is a value from -100 until 0 and
int B is a value from 0 to 100
What is the most effective way to put this into a CAN message and decode it again at the other ...
- 628