mirror of
https://github.com/STMicroelectronics/STM32CubeF0.git
synced 2025-05-08 19:29:49 +08:00
109 lines
4.8 KiB
Plaintext
109 lines
4.8 KiB
Plaintext
/**
|
|
@page CAN_Networking CAN Networking example
|
|
|
|
@verbatim
|
|
******************** (C) COPYRIGHT 2016 STMicroelectronics *******************
|
|
* @file CAN/CAN_Networking/readme.txt
|
|
* @author MCD Application Team
|
|
* @brief Description of the CAN Networking example.
|
|
******************************************************************************
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without modification,
|
|
* are permitted provided that the following conditions are met:
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
* 3. Neither the name of STMicroelectronics nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
******************************************************************************
|
|
@endverbatim
|
|
|
|
@par Example Description
|
|
|
|
How to configure the CAN peripheral to send and receive CAN frames in
|
|
normal mode.
|
|
|
|
The sent frames are used to control LEDs by pressing Tamper push-button.
|
|
|
|
The CAN serial communication link is a bus to which a number of units may be
|
|
connected. This number has no theoretical limit. Practically the total number
|
|
of units will be limited by delay times and/or electrical loads on the bus line.
|
|
|
|
This program behaves as follows:
|
|
- After reset, all LEDs are OFF on the N eval boards
|
|
- By Pressing on Tamper push-button : LED1 turns ON and all other LEDs are OFF, on the N
|
|
eval boards connected to the bus.
|
|
- Press on Tamper push-button again to send CAN Frame to command LEDn+1 ON, all other LEDs
|
|
are OFF on the N eval boards.
|
|
|
|
@note This example is tested with a bus of 3 units. The same program example is
|
|
loaded in all units to send and receive frames.
|
|
@note Any unit in the CAN bus may play the role of sender (by pressing Tamper push-button)
|
|
or receiver.
|
|
|
|
The CAN is configured as follows:
|
|
- Bit Rate = 1 Mbit/s
|
|
- CAN Clock = external clock (HSE)
|
|
- ID Filter = All identifiers are allowed
|
|
- RTR = Data
|
|
- DLC = 1 byte
|
|
- Data: Led number that should be turned ON
|
|
|
|
@par Directory contents
|
|
|
|
- CAN/CAN_Networking/Inc/stm32f0xx_hal_conf.h HAL configuration file
|
|
- CAN/CAN_Networking/Inc/stm32f0xx_it.h DMA interrupt handlers header file
|
|
- CAN/CAN_Networking/Inc/main.h Header for main.c module
|
|
- CAN/CAN_Networking/Src/stm32f0xx_it.c DMA interrupt handlers
|
|
- CAN/CAN_Networking/Src/main.c Main program
|
|
- CAN/CAN_Networking/Src/stm32f0xx_hal_msp.c HAL MSP file
|
|
- CAN/CAN_Networking/Src/system_stm32f0xx.c STM32F0xx system source file
|
|
|
|
@par Hardware and Software environment
|
|
|
|
- This example runs on STM32F0xx devices.
|
|
- This example has been tested with STM32091C-EVAL board and can be
|
|
easily tailored to any other supported device and development board.
|
|
|
|
- STM32091C-EVAL Set-up
|
|
- Use LED1, LED2, LED3 and LED4 connected respectively to PE.00, PE.01, PE.07
|
|
and PE.08 pins
|
|
- Use Tamper push-button connected to PC.13
|
|
- Connect a male/male CAN cable between at least 2 EVAL CAN connectors (CN5)
|
|
- You have to configure the jumpers as follows:
|
|
|
|
@verbatim
|
|
|
|
+-------------------------------+
|
|
| Jumper | CAN |
|
|
+-------------------------------+
|
|
| JP3 | 1-2 |
|
|
| JP2 | fitted |
|
|
+-------------------------------+
|
|
@endverbatim
|
|
|
|
@par How to use it ?
|
|
|
|
In order to make the program work, you must do the following:
|
|
- Open your preferred toolchain
|
|
- Rebuild all files and load your image into target memory
|
|
- Run the example
|
|
|
|
* <h3><center>© COPYRIGHT STMicroelectronics</center></h3>
|
|
*/
|
|
|