2 * FreeRTOS Kernel <DEVELOPMENT BRANCH>
3 * Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
5 * SPDX-License-Identifier: MIT
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:
14 * The above copyright notice and this permission notice shall be included in all
15 * copies or substantial portions of the Software.
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.
24 * https://www.FreeRTOS.org
25 * https://github.com/FreeRTOS
32 + portCPU_CLOCK_HZ definition changed to 8MHz base 10, previously it
45 /*-----------------------------------------------------------
46 * Port specific definitions.
48 * The settings in this file configure FreeRTOS correctly for the
49 * given hardware and compiler.
51 * These settings should not be altered.
52 *-----------------------------------------------------------
55 /* Type definitions. */
57 #define portFLOAT float
58 #define portDOUBLE double
61 #define portSTACK_TYPE uint8_t
62 #define portBASE_TYPE char
64 #define portPOINTER_SIZE_TYPE uint16_t
66 typedef portSTACK_TYPE StackType_t;
67 typedef signed char BaseType_t;
68 typedef unsigned char UBaseType_t;
70 #if ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_16_BITS )
71 typedef uint16_t TickType_t;
72 #define portMAX_DELAY ( TickType_t ) 0xffff
73 #elif ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_32_BITS )
74 typedef uint32_t TickType_t;
75 #define portMAX_DELAY ( TickType_t ) ( 0xFFFFFFFFUL )
77 #error configTICK_TYPE_WIDTH_IN_BITS set to unsupported tick type width.
79 /*-----------------------------------------------------------*/
81 /* Critical section management. */
82 #define portENTER_CRITICAL() \
83 asm volatile ( "in __tmp_reg__, __SREG__" ::); \
84 asm volatile ( "cli" ::); \
85 asm volatile ( "push __tmp_reg__" ::)
87 #define portEXIT_CRITICAL() \
88 asm volatile ( "pop __tmp_reg__" ::); \
89 asm volatile ( "out __SREG__, __tmp_reg__" ::)
91 #define portDISABLE_INTERRUPTS() asm volatile ( "cli" ::);
92 #define portENABLE_INTERRUPTS() asm volatile ( "sei" ::);
93 /*-----------------------------------------------------------*/
95 /* Architecture specifics. */
96 #define portSTACK_GROWTH ( -1 )
97 #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
98 #define portBYTE_ALIGNMENT 1
99 #define portNOP() asm volatile ( "nop" );
100 /*-----------------------------------------------------------*/
102 /* Kernel utilities. */
103 extern void vPortYield( void ) __attribute__( ( naked ) );
104 #define portYIELD() vPortYield()
105 /*-----------------------------------------------------------*/
107 /* Task function macros as described on the FreeRTOS.org WEB site. */
108 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters )
109 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters )
117 #endif /* PORTMACRO_H */