canopennode/example/application.h

154 lines
4.4 KiB
C

/**
* Application interface for CANopenNode stack.
*
* @file application.h
* @ingroup CO_application
* @author Janez Paternoster
* @copyright 2012 - 2020 Janez Paternoster
*
* This file is part of CANopenNode, an opensource CANopen Stack.
* Project home page is <https://github.com/CANopenNode/CANopenNode>.
* For more information on CANopen see <http://www.can-cia.org/>.
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* 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.
*/
#ifndef CO_APPLICATION_H
#define CO_APPLICATION_H
/**
* @defgroup CO_application Application interface
* @ingroup CO_CANopen
* @{
*
* Application interface for CANopenNode stack. Function is called
* from file main_xxx.c (if implemented).
*
* ###Main program flow chart
*
* @code
(Program Start)
|
V
+------------------------------------+
| programStart() |
+------------------------------------+
|
|<-------------------------+
| |
V |
(Initialze CANopen) |
| |
V |
+------------------------------------+ |
| communicationReset() | |
+------------------------------------+ |
| |
V |
(Enable CAN and interrupts) |
| |
|<----------------------+ |
| | |
V | |
+------------------------------------+ | |
| programAsync() | | |
+------------------------------------+ | |
| | |
V | |
(Process CANopen asynchronous) | |
| | |
+- infinite loop -------+ |
| |
+- reset communication ----+
|
V
+------------------------------------+
| programEnd() |
+------------------------------------+
|
V
(delete CANopen)
|
V
(Program end)
@endcode
*
*
* ###Timer program flow chart
*
* @code
(Timer interrupt 1 millisecond)
|
V
(CANopen read RPDOs)
|
V
+------------------------------------+
| program1ms() |
+------------------------------------+
|
V
(CANopen write TPDOs)
@endcode
*
*
* ###Receive and transmit high priority interrupt flow chart
*
* @code
(CAN receive event or)
(CAN transmit buffer empty event)
|
V
(Process received CAN message or)
(copy next message to CAN transmit buffer)
@endcode
*/
/**
* Called after microcontroller reset.
*/
void programStart(void);
/**
* Called after communication reset.
*/
void communicationReset(void);
/**
* Called before program end.
*/
void programEnd(void);
/**
* Called cyclically from main.
*
* @param timer1msDiff Time difference since last call
*/
void programAsync(uint16_t timer1msDiff);
/**
* Called cyclically from 1ms timer task.
*/
void program1ms(void);
/** @} */
#endif