CAN communication based on MINI STM32 board

jiaxinhui2011

CAN communication based on MINI STM32 board [Copy link]

Board A communicates with board B. Press the buttons on board A respectively. After board B receives the data through CAN communication, the corresponding LED lights on board B will be turned on.
发送.zip (345.75 KB, downloads: 276)

2012-6-19 09:58 上传

点击文件名下载附件

接收.zip (371.52 KB, downloads: 284)

2012-6-19 09:58 上传

点击文件名下载附件

jiaxinhui2011

CAN环回测试.zip (375.36 KB, downloads: 114)

2012-6-29 11:20 上传

点击文件名下载附件

This example uses the MINI STM32 board to show how to use the BxCAN module of STM32 to send and receive data. In this example, the BxCAN module works in loopback mode, that is, the receiving end receives the data sent from the transmitting section,
realizing self-transmission and self-reception. After running the program, first, the module will transmit a frame of standard data at a baud rate of 100Kbit/s. After waiting for the transmission to be completed,
the receiving section receives and verifies the frame of data, and judges whether the transmission is correct or not according to the result and lights up the corresponding LED. LED1 lights up to indicate success, and LED2 lights up to indicate failure.
Subsequently, the module will transmit a frame of extended data at a baud rate of 500Kbit/s. This time, the receiving end will generate an interrupt after receiving the receipt, and check the frame of data in the interrupt.
It also judges whether the transmission is correct or not according to the result and lights up the corresponding LED. LED3 lights up to indicate success, and LED2 lights up to indicate failure.
Running the program, it is found that LED1 and LED3 on the board light up, which indicates that both transmissions are successful.

jiaxinhui2011

No one has pushed it up, push it up yourself

huo_hu

?Doesn't canbus have two wires? Why does yours have four wires?

jiaxinhui2011

Two of the wires are power lines. When the bus is communicating, there must be power lines to supply power to each CAN module.

jiaxinhui2011

:loveliness:                                               

huangchao366

can, a must-have in the automotive industry.

wateras1

I would like to ask if you have done any experiment to allow CAN to accept more than 8 bytes at a time?

jiaxinhui2011

wateras1 posted on 2014-9-1 14:43 May I ask if the OP has ever done an experiment on how to accept more than 8 bytes at a time?

If there are more than 8 data, the program needs to process them.

wateras1

jiaxinhui2011 posted on 2014-9-16 09:44 If there are more than 8 data, the program needs to handle it.

This problem has been solved:)

jiaxinhui2011

Congratulations upstairs.

ahljj

CAN communication based on MINI STM32 board

jiaxinhui2011

:)            

abcd4e0

Thank you for sharing

kunquerila

There is a virus after downloading