MHVLib
20111011
An efficiency oriented runtime library for AVR microcontrollers
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00001 /* 00002 * Copyright (c) 2011, Make, Hack, Void Inc 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions are met: 00007 * * Redistributions of source code must retain the above copyright 00008 * notice, this list of conditions and the following disclaimer. 00009 * * Redistributions in binary form must reproduce the above copyright 00010 * notice, this list of conditions and the following disclaimer in the 00011 * documentation and/or other materials provided with the distribution. 00012 * * Neither the name of the Make, Hack, Void nor the 00013 * names of its contributors may be used to endorse or promote products 00014 * derived from this software without specific prior written permission. 00015 * 00016 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 00017 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 00018 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00019 * DISCLAIMED. IN NO EVENT SHALL MAKE, HACK, VOID BE LIABLE FOR ANY 00020 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 00021 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00022 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 00023 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00024 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00025 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00026 */ 00027 00028 #ifndef MHV_SOFTWAREHBRIDGE_H_ 00029 #define MHV_SOFTWAREHBRIDGE_H_ 00030 00031 #ifdef MHV_TIMER16_1 00032 00033 #include <inttypes.h> 00034 #include <MHV_io.h> 00035 #include <MHV_Timer16.h> 00036 00037 enum mhv_SoftwareHBridge_direction { 00038 MHV_SOFTWAREHBRIDGE_DIR_COAST, 00039 MHV_SOFTWAREHBRIDGE_DIR_FORWARD, 00040 MHV_SOFTWAREHBRIDGE_DIR_BACKWARD, 00041 MHV_SOFTWAREHBRIDGE_DIR_BRAKE 00042 }; 00043 typedef enum mhv_SoftwareHBridge_direction MHV_SOFTWAREHBRIDGE_DIRECTION; 00044 00045 enum mhv_SoftwareHBridge_type { 00046 MHV_SOFTWAREHBRIDGE_TYPE_PULLUP, 00047 MHV_SOFTWAREHBRIDGE_TYPE_DIRECT 00048 }; 00049 typedef enum mhv_SoftwareHBridge_type MHV_SOFTWAREHBRIDGE_TYPE; 00050 00051 class MHV_SoftwareHBridge { 00052 protected: 00053 MHV_SOFTWAREHBRIDGE_TYPE _type; 00054 MHV_Timer16 *_timer; 00055 uint8_t _timerChannel; 00056 00057 volatile uint8_t *_dir1Top; 00058 volatile uint8_t *_out1Top; 00059 uint8_t _pin1Top; 00060 volatile uint8_t *_out1Bottom; 00061 uint8_t _pin1Bottom; 00062 volatile uint8_t *_dir2Top; 00063 volatile uint8_t *_out2Top; 00064 uint8_t _pin2Top; 00065 volatile uint8_t *_out2Bottom; 00066 uint8_t _pin2Bottom; 00067 00068 MHV_SOFTWAREHBRIDGE_DIRECTION _direction; 00069 00070 public: 00071 MHV_SoftwareHBridge(MHV_SOFTWAREHBRIDGE_TYPE type, MHV_Timer16 *timer, uint8_t timerChannel, 00072 volatile uint8_t *dir1Top, volatile uint8_t *out1Top, volatile uint8_t *in1Top, uint8_t pin1Top, int8_t int1Top, 00073 volatile uint8_t *dir1Bottom, volatile uint8_t *out1Bottom, volatile uint8_t *in1Bottom, uint8_t pin1Bottom, int8_t int1Bottom, 00074 volatile uint8_t *dir2Top, volatile uint8_t *out2Top, volatile uint8_t *in2Top, uint8_t pin2Top, int8_t int2Top, 00075 volatile uint8_t *dir2Bottom, volatile uint8_t *out2Bottom, volatile uint8_t *in2Bottom, uint8_t pin2Bottom, int8_t int2Bottom); 00076 void reset(); 00077 void update(); 00078 void set(MHV_SOFTWAREHBRIDGE_DIRECTION direction, uint16_t magnitude); 00079 void set(MHV_SOFTWAREHBRIDGE_DIRECTION direction); 00080 }; 00081 00082 #endif // MHV_TIMER16_1 00083 00084 #endif /* MHV_SOFTWAREHBRIDGE_H_ */