1 |
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2 | @verbatim
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3 | ******************************************************************************
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4 | *
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5 | * Portions Copyright © 2019 STMicroelectronics International N.V. All rights reserved.
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6 | * Portions Copyright (C) 2016 Real Time Engineers Ltd, All rights reserved
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7 | *
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8 | * @file st_readme.txt
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9 | * @author MCD Application Team
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10 | * @brief This file lists the main modification done by STMicroelectronics on
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11 | * FreeRTOS for integration with STM32Cube solution.
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12 | * For more details on FreeRTOS implementation on STM32Cube, please refer
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13 | * to UM1722 "Developing Applications on STM32Cube with FreeRTOS"
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14 | ******************************************************************************
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15 | *
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16 | * Copyright (c) 2019 STMicroelectronics. All rights reserved.
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17 | *
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18 | * This software component is licensed by ST under BSD 3-Clause license,
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19 | * the "License"; You may not use this file except in compliance with the
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20 | * License. You may obtain a copy of the License at:
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21 | * opensource.org/licenses/BSD-3-Clause
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22 | *
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23 | ******************************************************************************
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24 | @endverbatim
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25 |
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26 | =======
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27 |
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28 | ### 31-August-2020 ###
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29 | =========================
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30 | + Bug fix for G0 compilation error due to IRQn_Type mismatch between G0 and other families
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31 | - Source/CMSIS_RTOS_V2/cmsis_os2.c
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32 | + Bug fix when using systick as timebasse for HAL
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33 | - Source/CMSIS_RTOS_V2/cmsis_os2.c
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34 |
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35 | ### 20-July-2020 ###
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36 | =========================
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37 | + FreeRTOS: Update to FreeRTOS v10.3.1
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38 |
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39 | + CMSIS_RTOS_V2: update against the latest CMSIS-FreeRTOS v10.3.0 release
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40 | - CMSIS_RTOS_V2/cmsis_os2.c
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41 | - CMSIS_RTOS_V2/freertos_mpool.h
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42 | - CMSIS_RTOS_V2/freertos_os2.h
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43 | - CMSIS_RTOS_V2/os_systick.c
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44 |
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45 | + Add Tickless Idle support for CM23/CM33
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46 | - GCC/ARM_CM23/non_secure/port.c
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47 | - GCC/ARM_CM23/non_secure/portmacro.h
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48 | - GCC/ARM_CM23_NTZ/non_secure/port.c
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49 | - GCC/ARM_CM23_NTZ/non_secure/portmacro.h
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50 | - GCC/ARM_CM33/non_secure/port.c
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51 | - GCC/ARM_CM33/non_secure/portmacro.h
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52 | - GCC/ARM_CM33_NTZ/non_secure/port.c
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53 | - GCC/ARM_CM33_NTZ/non_secure/portmacro.h
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54 | - IAR/ARM_CM23/non_secure/port.c
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55 | - IAR/ARM_CM23/non_secure/portmacro.h
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56 | - IAR/ARM_CM23_NTZ/non_secure/port.c
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57 | - IAR/ARM_CM23_NTZ/non_secure/portmacro.h
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58 | - IAR/ARM_CM33/non_secure/port.c
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59 | - IAR/ARM_CM33/non_secure/portmacro.h
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60 | - IAR/ARM_CM33_NTZ/non_secure/port.c
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61 | - IAR/ARM_CM33_NTZ/non_secure/portmacro.h
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62 |
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63 | + Fix MPU hardfault bug for Cortex-M4 MPU
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64 | - GCC\ARM_CM4_MPU\port.c
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65 | - IAR\ARM_CM4_MPU\port.c
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66 | - RVDS\ARM_CM4_MPU\port.c
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67 |
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68 | + Add support for 16 MPU regions to Cortex-M4 MPU ports
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69 | - GCC/ARM_CM4_MPU/portmacro.h
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70 | - IAR/ARM_CM4_MPU/portmacro.h
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71 | - RVDS/ARM_CM4_MPU/portmacro.h
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72 |
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73 | + Update ARM_CM7_MPU source files for all compilers
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74 | - GCC/ARM_CM7_MPU/r0p1/port.c
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75 | - GCC/ARM_CM7_MPU/r0p1/portmacro.h
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76 | - IAR/ARM_CM7_MPU/r0p1/port.c
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77 | - IAR/ARM_CM7_MPU/r0p1/portasm.s
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78 | - IAR/ARM_CM7_MPU/r0p1/portmacro.h
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79 | - RVDS/ARM_CM7_MPU/r0p1/port.c
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80 | - RVDS/ARM_CM7_MPU/r0p1/portmacro.h
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81 |
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82 | ### 17-January-2020 ###
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83 | =========================
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84 | + Fix compile error in the GCC CM7_MPU port caused by a duplicated variable declaration
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85 | - Source/portable/GCC/ARM_CM7_MPU/r0p1/port.c
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86 |
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87 | ### 13-December-2019 ###
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88 | =========================
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89 | + Remove warnings thrown by EWARM for CM33/CM23 ports
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90 | - IAR/ARM_CM23/non_secure/portmacro.h
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91 | - IAR/ARM_CM23_NTZ/non_secure/portmacro.h
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92 | - IAR/ARM_CM33/non_secure/portmacro.h
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93 | - IAR/ARM_CM33_NTZ/non_secure/portmacro.h
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94 |
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95 | ### 19-July-2019 ###
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96 | =========================
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97 | + Fix runtime error in the IAR/CM4_MPU port
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98 | - IAR/ARM_CM4_MPU/port.c
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99 |
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100 | ### 12-July-2019 ###
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101 | =========================
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102 | + FreeRTOS: Update against the FreeRTOS v10.2.1 release
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103 | - support for the CM33 and CM23 cores
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104 |
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105 | + CMSIS_RTOS_V2: update against the latest CMSIS-FreeRTOS v10.2.0 release
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106 |
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107 | + Add MPU support for the CM7/r0p1:
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108 | - GCC/ARM_CM7_MPU/r0p1/port.c
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109 | - GCC/ARM_CM7_MPU/r0p1/portmacro.h
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110 | - IAR/ARM_CM7_MPU/r0p1/port.c
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111 | - IAR/ARM_CM7_MPU/r0p1/portasm.s
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112 | - IAR/ARM_CM7_MPU/r0p1/portmacro.h
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113 | - RVDS/ARM_CM7_MPU/r0p1/port.c
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114 | - RVDS/ARM_CM7_MPU/r0p1/portmacro.h
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115 |
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116 | + cmsis_os.c: Fix compile errors by using the correct TimerCallbackFunction_t type for timer creation
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117 |
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118 | ### 29-Mars-2019 ###
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119 | =========================
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120 | + cmsis_os.c : Fix bug in osPoolAlloc(): memory blocks can't be reused after being free'd
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121 | + Source/CMSIS_RTOS_V2/cmsis_os, Source/CMSIS_RTOS_V2/cmsis_os1.c, Source/CMSIS_RTOS_V2/cmsis_os2.c, Source/CMSIS_RTOS_V2/cmsis_os2.h: restore original Apache license terms
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122 | + st_readme.txt: update license terms to BSD-3-Clause
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123 |
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124 |
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125 | ### 13-August-2018 ###
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126 | =========================
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127 | + Add empty implementation for the missing function osThreadGetStackSize()
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128 | to avoid link errors when using CMSIS-RTOS V2.
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129 |
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130 | + Update the FreeRTOSConfig_template.h with specific defines for the
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131 | CMSIS-RTOS V2.
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132 |
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133 | + Rename the "RTE_RTOS_FreeRTOS_XXXX" macros to "USE_FreeRTOS_XXXX" in
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134 | cmsis_os2.c.
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135 |
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136 | ### 30-July-2018 ###
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137 | =========================
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138 | + Update License.txt file to MIT license instead of GPLv2
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139 |
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140 | ### 23-July-2018 ###
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141 | =========================
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142 | + Fix compiler warnings thrown by IAR compiler 8.20
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143 |
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144 | + Add MPU support for the CM7/r0p1:
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145 | - GCC/ARM_CM7_MPU/r0p1/port.c
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146 | - GCC/ARM_CM7_MPU/r0p1/portmacro.h
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147 | - IAR/ARM_CM7_MPU/r0p1/port.c
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148 | - IAR/ARM_CM7_MPU/r0p1/portasm.s
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149 | - IAR/ARM_CM7_MPU/r0p1/portmacro.h
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150 | - RVDS/ARM_CM7_MPU/r0p1/port.c
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151 | - RVDS/ARM_CM7_MPU/r0p1/portmacro.h
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152 |
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153 | ### 09-April-2018 ###
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154 | =========================
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155 | Update the FreeRTOS against the latest release 10.0.1
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156 | more details are available in: https://www.freertos.org/History.txt
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157 |
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158 | + Integrate support for tickless mode for ARM_CM0 core:
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159 | - GCC/ARM_CM0/port.c
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160 | - GCC/ARM_CM0/portmacro.h
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161 | - IAR/ARM_CM0/port.c
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162 | - IAR/ARM_CM0/portmacro.h
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163 | - RVDS/ARM_CM0/port.c
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164 |
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165 | Integrate CMSIS-RTOSv2 wrapper based on: https://github.com/ARM-software/CMSIS-FreeRTOS/releases/tag/10.0.1
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166 | + Add new files:
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167 | - CMSIS_RTOS_V2/cmsis_os.h
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168 | - CMSIS_RTOS_V2/cmsis_os1.c
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169 | - CMSIS_RTOS_V2/cmsis_os2.c
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170 | - CMSIS_RTOS_V2/cmsis_os2.h
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171 | "cmsis_os1.c" and "cmsis_os1.h" contains the reference implementation of
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172 | CMSIS-RTOSv1,i.e as released by ARM, using the CMSIS-RTOSV2 API.
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173 |
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174 | + The ST customized CMSIS-RTOSv1 is maintained under:
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175 | - CMSIS_RTOS/cmsis_os.c
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176 | - CMSIS_RTOS/cmsis_os.h
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177 |
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178 | + When using CMSIS-RTOSv2 APIs, the following FreeRTOS defines are required:
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179 | - #define configMAX_PRIORITIES 56
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180 | - #define configSUPPORT_STATIC_ALLOCATION 0
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181 | - #define configUSE_PORT_OPTIMISED_TASK_SELECTION 0
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182 |
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183 |
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184 | ### 10-August-2017 ###
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185 | =========================
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186 | Update FreeRTOS to support MPU feature with IAR compiler.
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187 |
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188 | + Add the following ports:
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189 | - IAR/ARM_CM4_MPU
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190 | - IAR/ARM_CM7_MPU
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191 | - RVDS/ARM_CM7_MPU
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192 |
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193 |
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194 | ### 03-March-2017 ###
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195 | =========================
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196 | Update CMSIS-RTOS drivers to support both CMSIS Core V4.x and V5.x
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197 |
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198 | Bug fixes:
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199 | + CMSIS-RTOS: Wrong return value for osSignalWait()
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200 | + CMSIS-RTOS: Not all queue size is 0 initialized with osMailCAlloc()
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201 |
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202 | Limitation:
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203 | + CMSIS-RTOS: osSignalWAit() function is not fully compliant with the specification
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204 |
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205 |
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206 | ### 30-September-2016 ###
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207 | =========================
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208 | The purpose of this release is to Upgrade to use FreeRTOS V9.0.0, this version
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209 | is a drop-in compatible replacement for FreeRTOS V8.2.3.
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210 | For more details please refer to http://www.freertos.org/History.txt
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211 |
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212 | + Add support to tickless mode for MPU ports:
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213 | - GCC/ARM_CM3_MPU/port.c
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214 | - GCC/ARM_CM4_MPU/port.c
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215 | - RVDS/ARM_CM4_MPU/port.c
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216 |
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217 | + Update CM0 ports, add possibility to use a timebase different than Systick:
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218 | - IAR/ARM_CM0/port.c
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219 | - RVDS/ARM_CM0/port.c
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220 | - GCC/ARM_CM0/port.c
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221 |
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222 | + Fix compilation error in CM3_MPU and CM4_MPU ports:
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223 | - GCC/ARM_CM3_MPU/portmacro.h
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224 | - GCC/ARM_CM4_MPU/portmacro.h
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225 | - RVDS/ARM_CM4_MPU/portmacro.h
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226 | - Add "Source\portable\Common\" directory
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227 |
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228 | + cmsis_os.c
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229 | - Add support of Statically Allocated Systems introduced with FreeRTOS V9.0.0
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230 | - Add new wrappers CMSIS-RTOS APIs
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231 |
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232 | FreeRTOS APIs | CMSIS-RTOS APIs | Description
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233 | ==================================================================================================================
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234 | uxQueueMessagesWaiting() | osMessageWaiting() | Return the number of messages stored in a queue
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235 | ------------------------------------------------------------------------------------------------------------------
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236 | xTaskAbortDelay() | osAbortDelay() | Force a thread to get out the blocked state immediately
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237 | ------------------------------------------------------------------------------------------------------------------
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238 | uxSemaphoreGetCount() | osSemaphoreGetCount() | Return the current count of a semaphore
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239 | ------------------------------------------------------------------------------------------------------------------
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240 | uxQueueSpacesAvailable() | osMessageAvailableSpace() | Return the available space in a message queue
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241 | ------------------------------------------------------------------------------------------------------------------
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242 | vQueueDelete() | osMessageDelete() | Delete a message Queue
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243 | ------------------------------------------------------------------------------------------------------------------
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244 |
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245 |
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246 | ### 22-January-2016 ###
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247 | =======================
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248 | The purpose of this release is to Upgrade to use FreeRTOS V8.2.3.
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249 | It also provides fixes for minor issues.
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250 |
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251 | + cmsis_os.c
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252 | - Implementation of functions "osSignalSet" and "osSignalWait" are now delimited by
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253 | #define configUSE_TASK_NOTIFICATIONS.
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254 | - Function "osTimerStart" : fix for an assert issue when called from an ISR.
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255 | - Function "osMailCreate" : internal variables initialization.
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256 | - Function "osSignalWait" : signals value is now compared versus integer zero for error checking.
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257 |
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258 | + freeRTOS sources
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259 | - FreeRTOS.h file : Add configuration sanity check in case of configUSE_RECURSIVE_MUTEXES set
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260 | and configUSE_MUTEXES not set.
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261 |
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262 | + STMicroelectronics license simplifications, see license disclaimer within this file's header
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263 |
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264 |
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265 | ### 27-March-2015 ###
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266 | =====================
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267 | The purpose of this release is to Upgrade to use FreeRTOS V8.2.1.
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268 |
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269 | + Major change of the version 8.2.1 is the support of CM7 core.
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270 | For STM32F746xx/STM32F756xx devices, need to use port files under Source/Portable/XXX/ARM_CM7/r0p1,
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271 | where XXX refers to the compiler used.
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272 |
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273 | + It also provides implementation of osSignal management APIs, osSignalSet() and osSignalWait(),
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274 | fixes osMassage queue size, osMailQDef macro and osDelayUntil parameters.
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275 |
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276 | + In this release an alignment has been done in ARM_CM4 and ARM_CM3 port.c versus ARM_CM0 port.c
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277 | regarding the use of macros configPRE_SLEEP_PROCESSING and configPOST_SLEEP_PROCESSING, these tow macros
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278 | are now taking as parameter as pointer to TickType_t.
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279 |
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280 | + cmsis_os.c
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281 | - Add implementation of osSignalSet() and osSignalWait() APIs
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282 | - Fix massage queue size in osMessageCreate API
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283 | - osDelayUntil: parameter PreviousWakeTime is now passed as a pointer.
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284 | - Enabling Mail queue management APIs (temporary removed in previous version).
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285 | - Function "osThreadGetPriority" uses now uxTaskPriorityGetFromISR if called from an interrupt handler, if not use uxTaskPriorityGet.
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286 |
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287 | + cmsis_os.h
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288 | - osFeature_Wait is defined to 0 to indicate that osWait function is not available (as specified by cmsis_os template by ARM)
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289 | - Fix compilation issue with osMailQDef macro.
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290 | - Enabling Mail queue management APIs (temporary removed in previous version)
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291 |
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292 | + freeRTOS sources
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293 | - ARM_CM3 port.c and ARM_CM4 port.c:
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294 | function vPortSuppressTicksAndSleep : configPRE_SLEEP_PROCESSING and configPOST_SLEEP_PROCESSING are now taking
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295 | as parameter as pointer to TickType_t.
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296 | The purpose of this change is to align the CM3 and CM4 implementation with CM0 one.
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297 |
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298 | + Note
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299 | - osSignalSet returns an int32_t value which is a a status (osOK or osError)
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300 | instead of the previous signal value as specified in cmsis_os template by ARM.
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301 | This is mainly due to freeRTOS implementation, the return value will be aligned (with the cmsis os template by ARM) as soon as the freeRTOS next version will allow it.
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302 |
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303 | - osThreadDef() macro is defined in the freeRTOS cmsis_os.h wrapper as follow :
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304 | osThreadDef(name, thread, priority, instances, stacksz)
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305 | the macro osThreadDef() as defined in ARM cmsis_os.h is defined with 4 parameters :
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306 | name : name of the thread function.
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307 | priority : initial priority of the thread function.
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308 | instances : number of possible thread instances.
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309 | stacksz : stack size (in bytes) requirements for the thread function.
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310 |
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311 | - osThreadDef as defined in the ARM template file cmsis_os.h assumes that the thread name is the same as the thread function name.
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312 | where the freeRTOS implementation gives separate parameters for the thread name and the thread function name.
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313 |
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314 | care must be taken when porting an application from/to another OS to/from freeRTOS cmsis_os regarding this macro.
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315 |
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316 | the macro osThreadDef() as defined in ARM cmsis_os.h template is defined with 4 parameters :
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317 | name : name of the thread function.
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318 | priority : initial priority of the thread function.
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319 | instances : number of possible thread instances.
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320 | stacksz : stack size (in bytes) requirements for the thread function.
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321 |
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322 | the macro osThreadDef() as defined in freeRTOS cmsis_os.h is defined with 5 parameters :
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323 | name : name of the thread (used for debugging and trace).
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324 | thread : name of the thread function
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325 | priority : initial priority of the thread function.
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326 | instances : number of possible thread instances.
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327 | stacksz : stack size (in bytes) requirements for the thread function.
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328 |
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329 |
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330 | ### 25-December-2014 ###
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331 | ========================
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332 | The purpose of this release is to remove compilation errors and warning. It also reintroduces
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333 | the function osThreadIsSuspended() which has been removed in the version V1.2.0.
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334 |
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335 | + cmsis_os.c
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336 | - osThreadGetPriority() and makeCmsisPriority(): replace INCLUDE_vTaskPriorityGet by the correct
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337 | freeRTOS constant uxTaskPriorityGet.
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338 | The version 1.2.2 is using a wrong constant INCLUDE_vTaskPriorityGet, while the correct freeRTOS
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339 | constant is uxTaskPriorityGet.
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340 | This fix ensure a safe use of osThreadGetPriority() function.
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341 |
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342 | - osThreadIsSuspended(): this function has been removed in version V1.2.0, it is now available gain.
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343 | User can either use this function to check if a Thread is suspended either use function osThreadGetState,
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344 | which is more generic, to check the exact state of a thread.
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345 |
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346 | - osThreadList(): this function is now taking as argument a pointer to uint8_t instead of a pointer to int8_t.
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347 | The change is made to remove a compilation warning.
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348 |
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349 | - osRecursiveMutexCreate(): the prototype has been changed to osMutexId osRecursiveMutexCreate (const osMutexDef_t *mutex_def)
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350 | This change is made to make osRecursiveMutexCreate() compatible with function MutexCreate().
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351 | It also allow the better use of the function in conjunction with the macro osMutex, note that osMutex return a
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352 | "const osMutexDef_t *mutex_def".
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353 | example : osMutex1Id = osRecursiveMutexCreate (osMutex(Mutex1));
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354 |
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355 | - Fix implementation of functions osSemaphoreWait(), osMutexRelease() and osMutexWait() by using the appropriate
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356 | freeRTOS FromISR APIs when called from an interrupt.
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357 |
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358 | - Fix compilation warning when the constant INCLUDE_eTaskGetState is not defined
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359 |
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360 | + cmsis_os.h
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361 | - osThreadIsSuspended(): add function prototype.
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362 | - osThreadList(): function prototype modified as described in cmsis_os.c section.
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363 | - osRecursiveMutexCreate(): function modified as described in cmsis_os.c section.
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364 |
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365 | + Important note:
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366 | Mail Queue Management Functions are not supported in this cmsis_os version, will be added in the next release.
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367 |
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368 |
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369 | ### 04-December-2014 ###
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370 | ========================
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371 | + cmsis_os.c, osSemaphoreCreate(): use vSemaphoreCreateBinary() instead of xSemaphoreCreateBinary(),
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372 | to keep compatibility with application code developed on FreeRTOS V7.6.0.
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373 |
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374 |
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375 | ### 07-November-2014 ###
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376 | ========================
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377 | + cmsis_os.h: modify the osThreadState enum to fix warning generated by ARMCC compiler
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378 | + task.c: add preprocessor compilation condition for prvTaskIsTaskSuspended() function
|
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379 | (it's build only when INCLUDE_vTaskSuspend option is enabled in FreeRTOSConfig.h file)
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380 |
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381 |
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382 | ### 04-November-2014 ###
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383 | ========================
|
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384 | + Upgrade to use FreeRTOS V8.1.2 and CMSIS-RTOS V1.02.
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385 | + cmsis_os.c
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386 | - Almost of CMSIS-RTOS APIs are implemented for FreeRTOS
|
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387 | - Additional wrapper APIs created for FreeRTOS
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388 |
|
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389 | + Important note:
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390 | When upgrading existing application code to use this last version, the following
|
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391 | update should be considered:
|
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392 | - osThreadIsSuspended() is no longer public API in FreeRTOS and it should
|
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393 | be replaced by the wrapping of eTaskGetState()
|
---|
394 | - osKernelStart() API changed, must be updated
|
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395 | - update FreeRTOSConfig.h file, taking FreeRTOSConfig_template.h file as reference
|
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396 |
|
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397 |
|
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398 | ### 13-June-2014 ###
|
---|
399 | ====================
|
---|
400 | + FreeRTOSConfig_template.h: add this definition #define INCLUDE_xTaskGetSchedulerState 1
|
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401 | to enable the use of xTaskGetSchedulerState() API in the
|
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402 | application code.
|
---|
403 |
|
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404 |
|
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405 | ### 30-April-2014 ###
|
---|
406 | =====================
|
---|
407 | + cmsis_os.c: add preprocessor compilation condition when calling some FreeRTOS APIs, to avoid link
|
---|
408 | errors with MDK-ARM when some FreeRTOS features are not enabled in FreeRTOSConfig.h
|
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409 |
|
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410 |
|
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411 | ### 22-April-2014 ###
|
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412 | =====================
|
---|
413 | + Add Tickles mode for CM0 port (IAR, GCC, RVDS).
|
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414 |
|
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415 |
|
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416 | ### 18-February-2014 ###
|
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417 | ========================
|
---|
418 | + FreeRTOS V7.6.0 customized version for STM32Cube solution.
|
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419 |
|
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420 |
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421 | * <h3><center>© COPYRIGHT STMicroelectronics</center></h3>
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422 | */
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