文件列表:

CAN_Networking\main.c (8556, 2013-01-18)
CAN_Networking\main.h (3153, 2013-01-18)
CAN_Networking\stm32f4xx_conf.h (3754, 2013-01-18)
CAN_Networking\stm32f4xx_it.c (5329, 2013-01-18)
CAN_Networking\stm32f4xx_it.h (2270, 2013-01-18)
CAN_Networking\system_stm32f4xx.c (22110, 2013-01-18)
CAN_Networking (0, 2013-09-04)

/** @page CAN_Networking CAN Networking example @verbatim ******************** (C) COPYRIGHT 2013 STMicroelectronics ******************* * @file CAN/CAN_Networking/readme.txt * @author MCD Application Team * @version V1.1.0 * @date 18-January-2013 * @brief Description of the CAN Networking example. ****************************************************************************** * * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); * You may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.st.com/software_license_agreement_liberty_v2 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ****************************************************************************** @endverbatim @par Example Description This example shows 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 key 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 LED1 is ON - By Pressing on KEY Button : LED2 turns ON and all other Leds are OFF, on the N eval boards connected to the bus. - Press on KEY 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 KEY button) or receiver. The CAN is configured as follow: - 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 User can select CAN1 or CAN2 cell using the defines in main.h : @code #define USE_CAN1 /* #define USE_CAN2*/ @endcode @par Directory contents - CAN/CAN_Networking/system_stm32f4xx.c STM32F4xx system clock configuration file - CAN/CAN_Networking/stm32f4xx_conf.h Library Configuration file - CAN/CAN_Networking/stm32f4xx_it.h Interrupt handlers header file - CAN/CAN_Networking/stm32f4xx_it.c Interrupt handlers - CAN/CAN_Networking/main.c Main program - CAN/CAN_Networking/main.h Main program header file @note The "system_stm32f4xx.c" is generated by an automatic clock configuration tool and can be easily customized to your own configuration. To select different clock setup, use the "STM32F4xx_Clock_Configuration_V1.1.0.xls" provided with the AN3***8 package available on ST Microcontrollers @par Hardware and Software environment - This example runs on STM32F40xx/STM32F41xx, STM32F427x/STM32F437x Devices. - This example has been tested with STMicroelectronics STM324xG-EVAL (STM32F40xx/ STM32F41xx Devices) and STM32437I-EVAL (STM32F427x/STM32F437x Devices) evaluation boards and can be easily tailored to any other supported device and development board. - STM324xG-EVAL and STM32437I-EVAL Set-up - Use LED1, LED2, LED3 and LED4 connected respectively to PG.06, PG.08, PI.09 and PC.07 pins - Use KEY Push Button connected to PG15 - Connect a female/female CAN cable between at least 2 EVAL CAN connectors (CN10) - Depending on the CAN cell used, you have to configure the jumpers as follows: @verbatim +-----------------------------------------------+ | Jumper | CAN1 used | CAN2 used | +-----------------------------------------------+ | JP3 | 2-3 | 1-2 | | JP10 | 2-3 | 1-2 | | JP7 | 1-2 | 1-2 | | JP9 | fitted | fitted | +-----------------------------------------------+ @endverbatim @par How to use it ? In order to make the program work, you must do the following : - Copy all source files from this example folder to the template folder under Project\STM32F4xx_StdPeriph_Templates - Open your preferred toolchain - Rebuild all files and load your image into target memory - Run the example *

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