begriffs open source - freertos/blob - portable/IAR/AVR_Mega0/porthardware.h

   1 /*
   2  * FreeRTOS Kernel V10.4.4
   3  * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
   4  *
   5  * SPDX-License-Identifier: MIT
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a copy of
   8  * this software and associated documentation files (the "Software"), to deal in
   9  * the Software without restriction, including without limitation the rights to
  10  * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
  11  * the Software, and to permit persons to whom the Software is furnished to do so,
  12  * subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in all
  15  * copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
  19  * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
  20  * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
  21  * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * https://www.FreeRTOS.org
  25  * https://github.com/FreeRTOS
  26  *
  27  */
  28 #ifndef PORTHARDWARE_H
  29 #define PORTHARDWARE_H
  30
  31 #ifndef __IAR_SYSTEMS_ASM__
  32     #include <ioavr.h>
  33 #endif
  34 #include "FreeRTOSConfig.h"
  35
  36 /*-----------------------------------------------------------*/
  37
  38 #if ( configUSE_TIMER_INSTANCE == 0 )
  39
  40     #define TICK_INT_vect    TCB0_INT_vect
  41     #define INT_FLAGS        TCB0_INTFLAGS
  42     #define INT_MASK         TCB_CAPT_bm
  43
  44     #define TICK_init()                                      \
  45     {                                                        \
  46         TCB0.CCMP = configCPU_CLOCK_HZ / configTICK_RATE_HZ; \
  47         TCB0.INTCTRL = TCB_CAPT_bm;                          \
  48         TCB0.CTRLA = TCB_ENABLE_bm;                          \
  49     }
  50
  51 #elif ( configUSE_TIMER_INSTANCE == 1 )
  52
  53     #define TICK_INT_vect    TCB1_INT_vect
  54     #define INT_FLAGS        TCB1_INTFLAGS
  55     #define INT_MASK         TCB_CAPT_bm
  56
  57     #define TICK_init()                                      \
  58     {                                                        \
  59         TCB1.CCMP = configCPU_CLOCK_HZ / configTICK_RATE_HZ; \
  60         TCB1.INTCTRL = TCB_CAPT_bm;                          \
  61         TCB1.CTRLA = TCB_ENABLE_bm;                          \
  62     }
  63
  64 #elif ( configUSE_TIMER_INSTANCE == 2 )
  65
  66     #define TICK_INT_vect    TCB2_INT_vect
  67     #define INT_FLAGS        TCB2_INTFLAGS
  68     #define INT_MASK         TCB_CAPT_bm
  69
  70     #define TICK_init()                                      \
  71     {                                                        \
  72         TCB2.CCMP = configCPU_CLOCK_HZ / configTICK_RATE_HZ; \
  73         TCB2.INTCTRL = TCB_CAPT_bm;                          \
  74         TCB2.CTRLA = TCB_ENABLE_bm;                          \
  75     }
  76
  77 #elif ( configUSE_TIMER_INSTANCE == 3 )
  78
  79     #define TICK_INT_vect    TCB3_INT_vect
  80     #define INT_FLAGS        TCB3_INTFLAGS
  81     #define INT_MASK         TCB_CAPT_bm
  82
  83     #define TICK_init()                                      \
  84     {                                                        \
  85         TCB3.CCMP = configCPU_CLOCK_HZ / configTICK_RATE_HZ; \
  86         TCB3.INTCTRL = TCB_CAPT_bm;                          \
  87         TCB3.CTRLA = TCB_ENABLE_bm;                          \
  88     }
  89
  90 #elif ( configUSE_TIMER_INSTANCE == 4 )
  91
  92     #define TICK_INT_vect    RTC_CNT_vect
  93     #define INT_FLAGS        RTC_INTFLAGS
  94     #define INT_MASK         RTC_OVF_bm
  95
  96 /* Hertz to period for RTC setup */
  97     #define RTC_PERIOD_HZ( x )    ( 32768 * ( ( 1.0 / x ) ) )
  98     #define TICK_init()                                        \
  99     {                                                          \
 100         while( RTC.STATUS > 0 ) {; }                           \
 101         RTC.CTRLA = RTC_PRESCALER_DIV1_gc | 1 << RTC_RTCEN_bp; \
 102         RTC.PER = RTC_PERIOD_HZ( configTICK_RATE_HZ );         \
 103         RTC.INTCTRL |= 1 << RTC_OVF_bp;                        \
 104     }
 105
 106 #else /* if ( configUSE_TIMER_INSTANCE == 0 ) */
 107     #undef TICK_INT_vect
 108     #undef INT_FLAGS
 109     #undef INT_MASK
 110     #undef TICK_init()
 111     #error Invalid timer setting.
 112 #endif /* if ( configUSE_TIMER_INSTANCE == 0 ) */
 113
 114 /*-----------------------------------------------------------*/
 115
 116 #endif /* PORTHARDWARE_H */