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1 | /** |
1 | /** |
2 | ****************************************************************************** |
2 | ****************************************************************************** |
3 | * @file stm32l1xx_hal_cortex.c |
3 | * @file stm32l1xx_hal_cortex.c |
4 | * @author MCD Application Team |
4 | * @author MCD Application Team |
5 | * @brief CORTEX HAL module driver. |
5 | * @brief CORTEX HAL module driver. |
6 | * |
6 | * |
7 | * This file provides firmware functions to manage the following |
7 | * This file provides firmware functions to manage the following |
8 | * functionalities of the CORTEX: |
8 | * functionalities of the CORTEX: |
9 | * + Initialization and de-initialization functions |
9 | * + Initialization and de-initialization functions |
10 | * + Peripheral Control functions |
10 | * + Peripheral Control functions |
11 | * |
11 | * |
12 | * @verbatim |
12 | * @verbatim |
13 | ============================================================================== |
13 | ============================================================================== |
14 | ##### How to use this driver ##### |
14 | ##### How to use this driver ##### |
15 | ============================================================================== |
15 | ============================================================================== |
16 | 16 | ||
17 | [..] |
17 | [..] |
18 | *** How to configure Interrupts using Cortex HAL driver *** |
18 | *** How to configure Interrupts using Cortex HAL driver *** |
19 | =========================================================== |
19 | =========================================================== |
20 | [..] |
20 | [..] |
21 | This section provide functions allowing to configure the NVIC interrupts (IRQ). |
21 | This section provide functions allowing to configure the NVIC interrupts (IRQ). |
22 | The Cortex-M3 exceptions are managed by CMSIS functions. |
22 | The Cortex-M3 exceptions are managed by CMSIS functions. |
23 | |
23 | |
24 | (#) Configure the NVIC Priority Grouping using HAL_NVIC_SetPriorityGrouping() function |
24 | (#) Configure the NVIC Priority Grouping using HAL_NVIC_SetPriorityGrouping() function |
25 | 25 | ||
26 | (#) Configure the priority of the selected IRQ Channels using HAL_NVIC_SetPriority() |
26 | (#) Configure the priority of the selected IRQ Channels using HAL_NVIC_SetPriority() |
27 | 27 | ||
28 | (#) Enable the selected IRQ Channels using HAL_NVIC_EnableIRQ() |
28 | (#) Enable the selected IRQ Channels using HAL_NVIC_EnableIRQ() |
29 | |
29 | |
30 | 30 | ||
31 | -@- When the NVIC_PRIORITYGROUP_0 is selected, IRQ pre-emption is no more possible. |
31 | -@- When the NVIC_PRIORITYGROUP_0 is selected, IRQ pre-emption is no more possible. |
32 | The pending IRQ priority will be managed only by the sub priority. |
32 | The pending IRQ priority will be managed only by the sub priority. |
33 | |
33 | |
34 | -@- IRQ priority order (sorted by highest to lowest priority): |
34 | -@- IRQ priority order (sorted by highest to lowest priority): |
35 | (+@) Lowest pre-emption priority |
35 | (+@) Lowest pre-emption priority |
36 | (+@) Lowest sub priority |
36 | (+@) Lowest sub priority |
37 | (+@) Lowest hardware priority (IRQ number) |
37 | (+@) Lowest hardware priority (IRQ number) |
38 | |
38 | |
39 | [..] |
39 | [..] |
40 | *** How to configure Systick using Cortex HAL driver *** |
40 | *** How to configure Systick using Cortex HAL driver *** |
41 | ======================================================== |
41 | ======================================================== |
42 | [..] |
42 | [..] |
43 | Setup SysTick Timer for 1 msec interrupts. |
43 | Setup SysTick Timer for 1 msec interrupts. |
44 | |
44 | |
45 | (+) The HAL_SYSTICK_Config()function calls the SysTick_Config() function which |
45 | (+) The HAL_SYSTICK_Config()function calls the SysTick_Config() function which |
46 | is a CMSIS function that: |
46 | is a CMSIS function that: |
47 | (++) Configures the SysTick Reload register with value passed as function parameter. |
47 | (++) Configures the SysTick Reload register with value passed as function parameter. |
48 | (++) Configures the SysTick IRQ priority to the lowest value (0x0F). |
48 | (++) Configures the SysTick IRQ priority to the lowest value (0x0F). |
49 | (++) Resets the SysTick Counter register. |
49 | (++) Resets the SysTick Counter register. |
50 | (++) Configures the SysTick Counter clock source to be Core Clock Source (HCLK). |
50 | (++) Configures the SysTick Counter clock source to be Core Clock Source (HCLK). |
51 | (++) Enables the SysTick Interrupt. |
51 | (++) Enables the SysTick Interrupt. |
52 | (++) Starts the SysTick Counter. |
52 | (++) Starts the SysTick Counter. |
53 | |
53 | |
54 | (+) You can change the SysTick Clock source to be HCLK_Div8 by calling the macro |
54 | (+) You can change the SysTick Clock source to be HCLK_Div8 by calling the macro |
55 | __HAL_CORTEX_SYSTICKCLK_CONFIG(SYSTICK_CLKSOURCE_HCLK_DIV8) just after the |
55 | __HAL_CORTEX_SYSTICKCLK_CONFIG(SYSTICK_CLKSOURCE_HCLK_DIV8) just after the |
56 | HAL_SYSTICK_Config() function call. The __HAL_CORTEX_SYSTICKCLK_CONFIG() macro is defined |
56 | HAL_SYSTICK_Config() function call. The __HAL_CORTEX_SYSTICKCLK_CONFIG() macro is defined |
57 | inside the stm32l1xx_hal_cortex.h file. |
57 | inside the stm32l1xx_hal_cortex.h file. |
58 | 58 | ||
59 | (+) You can change the SysTick IRQ priority by calling the |
59 | (+) You can change the SysTick IRQ priority by calling the |
60 | HAL_NVIC_SetPriority(SysTick_IRQn,...) function just after the HAL_SYSTICK_Config() function |
60 | HAL_NVIC_SetPriority(SysTick_IRQn,...) function just after the HAL_SYSTICK_Config() function |
61 | call. The HAL_NVIC_SetPriority() call the NVIC_SetPriority() function which is a CMSIS function. |
61 | call. The HAL_NVIC_SetPriority() call the NVIC_SetPriority() function which is a CMSIS function. |
62 | 62 | ||
63 | (+) To adjust the SysTick time base, use the following formula: |
63 | (+) To adjust the SysTick time base, use the following formula: |
64 | |
64 | |
65 | Reload Value = SysTick Counter Clock (Hz) x Desired Time base (s) |
65 | Reload Value = SysTick Counter Clock (Hz) x Desired Time base (s) |
66 | (++) Reload Value is the parameter to be passed for HAL_SYSTICK_Config() function |
66 | (++) Reload Value is the parameter to be passed for HAL_SYSTICK_Config() function |
67 | (++) Reload Value should not exceed 0xFFFFFF |
67 | (++) Reload Value should not exceed 0xFFFFFF |
68 | |
68 | |
69 | @endverbatim |
69 | @endverbatim |
70 | ****************************************************************************** |
70 | ****************************************************************************** |
71 | * @attention |
71 | * @attention |
72 | * |
72 | * |
73 | * <h2><center>© Copyright (c) 2017 STMicroelectronics. |
73 | * Copyright (c) 2017 STMicroelectronics. |
74 | * All rights reserved.</center></h2> |
74 | * All rights reserved. |
75 | * |
75 | * |
76 | * This software component is licensed by ST under BSD 3-Clause license, |
76 | * This software is licensed under terms that can be found in the LICENSE file in |
77 | * the "License"; You may not use this file except in compliance with the |
77 | * the root directory of this software component. |
78 | * License. You may obtain a copy of the License at: |
78 | * If no LICENSE file comes with this software, it is provided AS-IS. |
79 | * opensource.org/licenses/BSD-3-Clause |
79 | * |
80 | * |
80 | ****************************************************************************** |
81 | ****************************************************************************** |
81 | */ |
82 | */ |
82 | |
83 | 83 | /* |
|
84 | /* |
84 | Additional Tables: CORTEX_NVIC_Priority_Table |
85 | Additional Tables: CORTEX_NVIC_Priority_Table |
85 | The table below gives the allowed values of the pre-emption priority and subpriority according |
86 | The table below gives the allowed values of the pre-emption priority and subpriority according |
86 | to the Priority Grouping configuration performed by HAL_NVIC_SetPriorityGrouping() function. |
87 | to the Priority Grouping configuration performed by HAL_NVIC_SetPriorityGrouping() function. |
87 | ========================================================================================================================== |
88 | ========================================================================================================================== |
88 | NVIC_PriorityGroup | NVIC_IRQChannelPreemptionPriority | NVIC_IRQChannelSubPriority | Description |
89 | NVIC_PriorityGroup | NVIC_IRQChannelPreemptionPriority | NVIC_IRQChannelSubPriority | Description |
89 | ========================================================================================================================== |
90 | ========================================================================================================================== |
90 | NVIC_PRIORITYGROUP_0 | 0 | 0-15 | 0 bits for pre-emption priority |
91 | NVIC_PRIORITYGROUP_0 | 0 | 0-15 | 0 bits for pre-emption priority |
91 | | | | 4 bits for subpriority |
92 | | | | 4 bits for subpriority |
92 | -------------------------------------------------------------------------------------------------------------------------- |
93 | -------------------------------------------------------------------------------------------------------------------------- |
93 | NVIC_PRIORITYGROUP_1 | 0-1 | 0-7 | 1 bits for pre-emption priority |
94 | NVIC_PRIORITYGROUP_1 | 0-1 | 0-7 | 1 bits for pre-emption priority |
94 | | | | 3 bits for subpriority |
95 | | | | 3 bits for subpriority |
95 | -------------------------------------------------------------------------------------------------------------------------- |
96 | -------------------------------------------------------------------------------------------------------------------------- |
96 | NVIC_PRIORITYGROUP_2 | 0-3 | 0-3 | 2 bits for pre-emption priority |
97 | NVIC_PRIORITYGROUP_2 | 0-3 | 0-3 | 2 bits for pre-emption priority |
97 | | | | 2 bits for subpriority |
98 | | | | 2 bits for subpriority |
98 | -------------------------------------------------------------------------------------------------------------------------- |
99 | -------------------------------------------------------------------------------------------------------------------------- |
99 | NVIC_PRIORITYGROUP_3 | 0-7 | 0-1 | 3 bits for pre-emption priority |
100 | NVIC_PRIORITYGROUP_3 | 0-7 | 0-1 | 3 bits for pre-emption priority |
100 | | | | 1 bits for subpriority |
101 | | | | 1 bits for subpriority |
101 | -------------------------------------------------------------------------------------------------------------------------- |
102 | -------------------------------------------------------------------------------------------------------------------------- |
102 | NVIC_PRIORITYGROUP_4 | 0-15 | 0 | 4 bits for pre-emption priority |
103 | NVIC_PRIORITYGROUP_4 | 0-15 | 0 | 4 bits for pre-emption priority |
103 | | | | 0 bits for subpriority |
104 | | | | 0 bits for subpriority |
104 | ========================================================================================================================== |
105 | ========================================================================================================================== |
105 | */ |
106 | */ |
106 | |
107 | 107 | /* Includes ------------------------------------------------------------------*/ |
|
108 | /* Includes ------------------------------------------------------------------*/ |
108 | #include "stm32l1xx_hal.h" |
109 | #include "stm32l1xx_hal.h" |
109 | |
110 | 110 | /** @addtogroup STM32L1xx_HAL_Driver |
|
111 | /** @addtogroup STM32L1xx_HAL_Driver |
111 | * @{ |
112 | * @{ |
112 | */ |
113 | */ |
113 | |
114 | 114 | /** @defgroup CORTEX CORTEX |
|
115 | /** @defgroup CORTEX CORTEX |
115 | * @brief CORTEX HAL module driver |
116 | * @brief CORTEX HAL module driver |
116 | * @{ |
117 | * @{ |
117 | */ |
118 | */ |
118 | |
119 | 119 | #ifdef HAL_CORTEX_MODULE_ENABLED |
|
120 | #ifdef HAL_CORTEX_MODULE_ENABLED |
120 | |
121 | 121 | /* Private typedef -----------------------------------------------------------*/ |
|
122 | /* Private typedef -----------------------------------------------------------*/ |
122 | /* Private define ------------------------------------------------------------*/ |
123 | /* Private define ------------------------------------------------------------*/ |
123 | /* Private macro -------------------------------------------------------------*/ |
124 | /* Private macro -------------------------------------------------------------*/ |
124 | /* Private variables ---------------------------------------------------------*/ |
125 | /* Private variables ---------------------------------------------------------*/ |
125 | /* Private function prototypes -----------------------------------------------*/ |
126 | /* Private function prototypes -----------------------------------------------*/ |
126 | /* Private functions ---------------------------------------------------------*/ |
127 | /* Private functions ---------------------------------------------------------*/ |
127 | |
128 | 128 | /** @defgroup CORTEX_Exported_Functions CORTEX Exported Functions |
|
129 | /** @defgroup CORTEX_Exported_Functions CORTEX Exported Functions |
129 | * @{ |
130 | * @{ |
130 | */ |
131 | */ |
131 | |
132 | 132 | ||
133 | 133 | /** @defgroup CORTEX_Exported_Functions_Group1 Initialization and de-initialization functions |
|
134 | /** @defgroup CORTEX_Exported_Functions_Group1 Initialization and de-initialization functions |
134 | * @brief Initialization and Configuration functions |
135 | * @brief Initialization and Configuration functions |
135 | * |
136 | * |
136 | @verbatim |
137 | @verbatim |
137 | ============================================================================== |
138 | ============================================================================== |
138 | ##### Initialization and de-initialization functions ##### |
139 | ##### Initialization and de-initialization functions ##### |
139 | ============================================================================== |
140 | ============================================================================== |
140 | [..] |
141 | [..] |
141 | This section provide the Cortex HAL driver functions allowing to configure Interrupts |
142 | This section provide the Cortex HAL driver functions allowing to configure Interrupts |
142 | Systick functionalities |
143 | Systick functionalities |
143 | |
144 | 144 | @endverbatim |
|
145 | @endverbatim |
145 | * @{ |
146 | * @{ |
146 | */ |
147 | */ |
147 | |
148 | 148 | ||
149 | 149 | /** |
|
150 | /** |
150 | * @brief Sets the priority grouping field (pre-emption priority and subpriority) |
151 | * @brief Sets the priority grouping field (pre-emption priority and subpriority) |
151 | * using the required unlock sequence. |
152 | * using the required unlock sequence. |
152 | * @param PriorityGroup The priority grouping bits length. |
153 | * @param PriorityGroup The priority grouping bits length. |
153 | * This parameter can be one of the following values: |
154 | * This parameter can be one of the following values: |
154 | * @arg NVIC_PRIORITYGROUP_0: 0 bits for pre-emption priority |
155 | * @arg NVIC_PRIORITYGROUP_0: 0 bits for pre-emption priority |
155 | * 4 bits for subpriority |
156 | * 4 bits for subpriority |
156 | * @arg NVIC_PRIORITYGROUP_1: 1 bits for pre-emption priority |
157 | * @arg NVIC_PRIORITYGROUP_1: 1 bits for pre-emption priority |
157 | * 3 bits for subpriority |
158 | * 3 bits for subpriority |
158 | * @arg NVIC_PRIORITYGROUP_2: 2 bits for pre-emption priority |
159 | * @arg NVIC_PRIORITYGROUP_2: 2 bits for pre-emption priority |
159 | * 2 bits for subpriority |
160 | * 2 bits for subpriority |
160 | * @arg NVIC_PRIORITYGROUP_3: 3 bits for pre-emption priority |
161 | * @arg NVIC_PRIORITYGROUP_3: 3 bits for pre-emption priority |
161 | * 1 bits for subpriority |
162 | * 1 bits for subpriority |
162 | * @arg NVIC_PRIORITYGROUP_4: 4 bits for pre-emption priority |
163 | * @arg NVIC_PRIORITYGROUP_4: 4 bits for pre-emption priority |
163 | * 0 bits for subpriority |
164 | * 0 bits for subpriority |
164 | * @note When the NVIC_PriorityGroup_0 is selected, IRQ pre-emption is no more possible. |
165 | * @note When the NVIC_PriorityGroup_0 is selected, IRQ pre-emption is no more possible. |
165 | * The pending IRQ priority will be managed only by the subpriority. |
166 | * The pending IRQ priority will be managed only by the subpriority. |
166 | * @retval None |
167 | * @retval None |
167 | */ |
168 | */ |
168 | void HAL_NVIC_SetPriorityGrouping(uint32_t PriorityGroup) |
169 | void HAL_NVIC_SetPriorityGrouping(uint32_t PriorityGroup) |
169 | { |
170 | { |
170 | /* Check the parameters */ |
171 | /* Check the parameters */ |
171 | assert_param(IS_NVIC_PRIORITY_GROUP(PriorityGroup)); |
172 | assert_param(IS_NVIC_PRIORITY_GROUP(PriorityGroup)); |
172 | |
173 | 173 | /* Set the PRIGROUP[10:8] bits according to the PriorityGroup parameter value */ |
|
174 | /* Set the PRIGROUP[10:8] bits according to the PriorityGroup parameter value */ |
174 | NVIC_SetPriorityGrouping(PriorityGroup); |
175 | NVIC_SetPriorityGrouping(PriorityGroup); |
175 | } |
176 | } |
176 | |
177 | 177 | /** |
|
178 | /** |
178 | * @brief Sets the priority of an interrupt. |
179 | * @brief Sets the priority of an interrupt. |
179 | * @param IRQn External interrupt number |
180 | * @param IRQn External interrupt number |
180 | * This parameter can be an enumerator of IRQn_Type enumeration |
181 | * This parameter can be an enumerator of IRQn_Type enumeration |
181 | * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32l1xx.h)) |
182 | * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32l1xx.h)) |
182 | * @param PreemptPriority The pre-emption priority for the IRQn channel. |
183 | * @param PreemptPriority The pre-emption priority for the IRQn channel. |
183 | * This parameter can be a value between 0 and 15 |
184 | * This parameter can be a value between 0 and 15 |
184 | * A lower priority value indicates a higher priority |
185 | * A lower priority value indicates a higher priority |
185 | * @param SubPriority the subpriority level for the IRQ channel. |
186 | * @param SubPriority the subpriority level for the IRQ channel. |
186 | * This parameter can be a value between 0 and 15 |
187 | * This parameter can be a value between 0 and 15 |
187 | * A lower priority value indicates a higher priority. |
188 | * A lower priority value indicates a higher priority. |
188 | * @retval None |
189 | * @retval None |
189 | */ |
190 | */ |
190 | void HAL_NVIC_SetPriority(IRQn_Type IRQn, uint32_t PreemptPriority, uint32_t SubPriority) |
191 | void HAL_NVIC_SetPriority(IRQn_Type IRQn, uint32_t PreemptPriority, uint32_t SubPriority) |
191 | { |
192 | { |
192 | uint32_t prioritygroup = 0x00; |
193 | uint32_t prioritygroup = 0x00; |
193 | |
194 | 194 | /* Check the parameters */ |
|
195 | /* Check the parameters */ |
195 | assert_param(IS_NVIC_SUB_PRIORITY(SubPriority)); |
196 | assert_param(IS_NVIC_SUB_PRIORITY(SubPriority)); |
196 | assert_param(IS_NVIC_PREEMPTION_PRIORITY(PreemptPriority)); |
197 | assert_param(IS_NVIC_PREEMPTION_PRIORITY(PreemptPriority)); |
197 | |
198 | 198 | prioritygroup = NVIC_GetPriorityGrouping(); |
|
199 | prioritygroup = NVIC_GetPriorityGrouping(); |
199 | |
200 | 200 | NVIC_SetPriority(IRQn, NVIC_EncodePriority(prioritygroup, PreemptPriority, SubPriority)); |
|
201 | NVIC_SetPriority(IRQn, NVIC_EncodePriority(prioritygroup, PreemptPriority, SubPriority)); |
201 | } |
202 | } |
202 | |
203 | 203 | /** |
|
204 | /** |
204 | * @brief Enables a device specific interrupt in the NVIC interrupt controller. |
205 | * @brief Enables a device specific interrupt in the NVIC interrupt controller. |
205 | * @note To configure interrupts priority correctly, the NVIC_PriorityGroupConfig() |
206 | * @note To configure interrupts priority correctly, the NVIC_PriorityGroupConfig() |
206 | * function should be called before. |
207 | * function should be called before. |
207 | * @param IRQn External interrupt number |
208 | * @param IRQn External interrupt number |
208 | * This parameter can be an enumerator of IRQn_Type enumeration |
209 | * This parameter can be an enumerator of IRQn_Type enumeration |
209 | * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32l1xx.h)) |
210 | * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32l1xx.h)) |
210 | * @retval None |
211 | * @retval None |
211 | */ |
212 | */ |
212 | void HAL_NVIC_EnableIRQ(IRQn_Type IRQn) |
213 | void HAL_NVIC_EnableIRQ(IRQn_Type IRQn) |
213 | { |
214 | { |
214 | /* Check the parameters */ |
215 | /* Check the parameters */ |
215 | assert_param(IS_NVIC_DEVICE_IRQ(IRQn)); |
216 | assert_param(IS_NVIC_DEVICE_IRQ(IRQn)); |
216 | |
217 | 217 | /* Enable interrupt */ |
|
218 | /* Enable interrupt */ |
218 | NVIC_EnableIRQ(IRQn); |
219 | NVIC_EnableIRQ(IRQn); |
219 | } |
220 | } |
220 | |
221 | 221 | /** |
|
222 | /** |
222 | * @brief Disables a device specific interrupt in the NVIC interrupt controller. |
223 | * @brief Disables a device specific interrupt in the NVIC interrupt controller. |
223 | * @param IRQn External interrupt number |
224 | * @param IRQn External interrupt number |
224 | * This parameter can be an enumerator of IRQn_Type enumeration |
225 | * This parameter can be an enumerator of IRQn_Type enumeration |
225 | * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32l1xxxx.h)) |
226 | * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32l1xxxx.h)) |
226 | * @retval None |
227 | * @retval None |
227 | */ |
228 | */ |
228 | void HAL_NVIC_DisableIRQ(IRQn_Type IRQn) |
229 | void HAL_NVIC_DisableIRQ(IRQn_Type IRQn) |
229 | { |
230 | { |
230 | /* Check the parameters */ |
231 | /* Check the parameters */ |
231 | assert_param(IS_NVIC_DEVICE_IRQ(IRQn)); |
232 | assert_param(IS_NVIC_DEVICE_IRQ(IRQn)); |
232 | |
233 | 233 | /* Disable interrupt */ |
|
234 | /* Disable interrupt */ |
234 | NVIC_DisableIRQ(IRQn); |
235 | NVIC_DisableIRQ(IRQn); |
235 | } |
236 | } |
236 | |
237 | 237 | /** |
|
238 | /** |
238 | * @brief Initiates a system reset request to reset the MCU. |
239 | * @brief Initiates a system reset request to reset the MCU. |
239 | * @retval None |
240 | * @retval None |
240 | */ |
241 | */ |
241 | void HAL_NVIC_SystemReset(void) |
242 | void HAL_NVIC_SystemReset(void) |
242 | { |
243 | { |
243 | /* System Reset */ |
244 | /* System Reset */ |
244 | NVIC_SystemReset(); |
245 | NVIC_SystemReset(); |
245 | } |
246 | } |
246 | |
247 | 247 | /** |
|
248 | /** |
248 | * @brief Initializes the System Timer and its interrupt, and starts the System Tick Timer. |
249 | * @brief Initializes the System Timer and its interrupt, and starts the System Tick Timer. |
249 | * Counter is in free running mode to generate periodic interrupts. |
250 | * Counter is in free running mode to generate periodic interrupts. |
250 | * @param TicksNumb Specifies the ticks Number of ticks between two interrupts. |
251 | * @param TicksNumb Specifies the ticks Number of ticks between two interrupts. |
251 | * @retval status: - 0 Function succeeded. |
252 | * @retval status: - 0 Function succeeded. |
252 | * - 1 Function failed. |
253 | * - 1 Function failed. |
253 | */ |
254 | */ |
254 | uint32_t HAL_SYSTICK_Config(uint32_t TicksNumb) |
255 | uint32_t HAL_SYSTICK_Config(uint32_t TicksNumb) |
255 | { |
256 | { |
256 | return SysTick_Config(TicksNumb); |
257 | return SysTick_Config(TicksNumb); |
257 | } |
258 | } |
258 | /** |
259 | /** |
259 | * @} |
260 | * @} |
260 | */ |
261 | */ |
261 | |
262 | 262 | /** @defgroup CORTEX_Exported_Functions_Group2 Peripheral Control functions |
|
263 | /** @defgroup CORTEX_Exported_Functions_Group2 Peripheral Control functions |
263 | * @brief Cortex control functions |
264 | * @brief Cortex control functions |
264 | * |
265 | * |
265 | @verbatim |
266 | @verbatim |
266 | ============================================================================== |
267 | ============================================================================== |
267 | ##### Peripheral Control functions ##### |
268 | ##### Peripheral Control functions ##### |
268 | ============================================================================== |
269 | ============================================================================== |
269 | [..] |
270 | [..] |
270 | This subsection provides a set of functions allowing to control the CORTEX |
271 | This subsection provides a set of functions allowing to control the CORTEX |
271 | (NVIC, SYSTICK, MPU) functionalities. |
272 | (NVIC, SYSTICK, MPU) functionalities. |
272 | |
273 | |
273 | |
274 | |
274 | @endverbatim |
275 | @endverbatim |
275 | * @{ |
276 | * @{ |
276 | */ |
277 | */ |
277 | |
278 | 278 | #if (__MPU_PRESENT == 1) |
|
279 | #if (__MPU_PRESENT == 1) |
279 | /** |
280 | /** |
280 | * @brief Enable the MPU. |
281 | * @brief Enable the MPU. |
281 | * @param MPU_Control Specifies the control mode of the MPU during hard fault, |
282 | * @param MPU_Control Specifies the control mode of the MPU during hard fault, |
282 | * NMI, FAULTMASK and privileged accessto the default memory |
283 | * NMI, FAULTMASK and privileged accessto the default memory |
283 | * This parameter can be one of the following values: |
284 | * This parameter can be one of the following values: |
284 | * @arg MPU_HFNMI_PRIVDEF_NONE |
285 | * @arg MPU_HFNMI_PRIVDEF_NONE |
285 | * @arg MPU_HARDFAULT_NMI |
286 | * @arg MPU_HARDFAULT_NMI |
286 | * @arg MPU_PRIVILEGED_DEFAULT |
287 | * @arg MPU_PRIVILEGED_DEFAULT |
287 | * @arg MPU_HFNMI_PRIVDEF |
288 | * @arg MPU_HFNMI_PRIVDEF |
288 | * @retval None |
289 | * @retval None |
289 | */ |
290 | */ |
290 | void HAL_MPU_Enable(uint32_t MPU_Control) |
291 | void HAL_MPU_Enable(uint32_t MPU_Control) |
291 | { |
292 | { |
292 | /* Enable the MPU */ |
293 | /* Enable the MPU */ |
293 | MPU->CTRL = (MPU_Control | MPU_CTRL_ENABLE_Msk); |
294 | MPU->CTRL = (MPU_Control | MPU_CTRL_ENABLE_Msk); |
294 | |
295 | 295 | /* Ensure MPU setting take effects */ |
|
296 | /* Ensure MPU setting take effects */ |
296 | __DSB(); |
297 | __DSB(); |
297 | __ISB(); |
298 | __ISB(); |
298 | } |
299 | } |
299 | |
300 | 300 | /** |
|
301 | /** |
301 | * @brief Disable the MPU. |
302 | * @brief Disable the MPU. |
302 | * @retval None |
303 | * @retval None |
303 | */ |
304 | */ |
304 | void HAL_MPU_Disable(void) |
305 | void HAL_MPU_Disable(void) |
305 | { |
306 | { |
306 | /* Make sure outstanding transfers are done */ |
307 | /* Make sure outstanding transfers are done */ |
307 | __DMB(); |
308 | __DMB(); |
308 | |
309 | 309 | /* Disable the MPU and clear the control register*/ |
|
310 | /* Disable the MPU and clear the control register*/ |
310 | MPU->CTRL = 0; |
311 | MPU->CTRL = 0; |
311 | } |
312 | } |
312 | |
313 | 313 | /** |
|
314 | /** |
314 | * @brief Initializes and configures the Region and the memory to be protected. |
315 | * @brief Initializes and configures the Region and the memory to be protected. |
315 | * @param MPU_Init Pointer to a MPU_Region_InitTypeDef structure that contains |
316 | * @param MPU_Init Pointer to a MPU_Region_InitTypeDef structure that contains |
316 | * the initialization and configuration information. |
317 | * the initialization and configuration information. |
317 | * @retval None |
318 | * @retval None |
318 | */ |
319 | */ |
319 | void HAL_MPU_ConfigRegion(MPU_Region_InitTypeDef *MPU_Init) |
320 | void HAL_MPU_ConfigRegion(MPU_Region_InitTypeDef *MPU_Init) |
320 | { |
321 | { |
321 | /* Check the parameters */ |
322 | /* Check the parameters */ |
322 | assert_param(IS_MPU_REGION_NUMBER(MPU_Init->Number)); |
323 | assert_param(IS_MPU_REGION_NUMBER(MPU_Init->Number)); |
323 | assert_param(IS_MPU_REGION_ENABLE(MPU_Init->Enable)); |
324 | assert_param(IS_MPU_REGION_ENABLE(MPU_Init->Enable)); |
324 | |
325 | 325 | /* Set the Region number */ |
|
326 | /* Set the Region number */ |
326 | MPU->RNR = MPU_Init->Number; |
327 | MPU->RNR = MPU_Init->Number; |
327 | |
328 | 328 | if ((MPU_Init->Enable) != RESET) |
|
329 | if ((MPU_Init->Enable) != RESET) |
329 | { |
330 | { |
330 | /* Check the parameters */ |
331 | /* Check the parameters */ |
331 | assert_param(IS_MPU_INSTRUCTION_ACCESS(MPU_Init->DisableExec)); |
332 | assert_param(IS_MPU_INSTRUCTION_ACCESS(MPU_Init->DisableExec)); |
332 | assert_param(IS_MPU_REGION_PERMISSION_ATTRIBUTE(MPU_Init->AccessPermission)); |
333 | assert_param(IS_MPU_REGION_PERMISSION_ATTRIBUTE(MPU_Init->AccessPermission)); |
333 | assert_param(IS_MPU_TEX_LEVEL(MPU_Init->TypeExtField)); |
334 | assert_param(IS_MPU_TEX_LEVEL(MPU_Init->TypeExtField)); |
334 | assert_param(IS_MPU_ACCESS_SHAREABLE(MPU_Init->IsShareable)); |
335 | assert_param(IS_MPU_ACCESS_SHAREABLE(MPU_Init->IsShareable)); |
335 | assert_param(IS_MPU_ACCESS_CACHEABLE(MPU_Init->IsCacheable)); |
336 | assert_param(IS_MPU_ACCESS_CACHEABLE(MPU_Init->IsCacheable)); |
336 | assert_param(IS_MPU_ACCESS_BUFFERABLE(MPU_Init->IsBufferable)); |
337 | assert_param(IS_MPU_ACCESS_BUFFERABLE(MPU_Init->IsBufferable)); |
337 | assert_param(IS_MPU_SUB_REGION_DISABLE(MPU_Init->SubRegionDisable)); |
338 | assert_param(IS_MPU_SUB_REGION_DISABLE(MPU_Init->SubRegionDisable)); |
338 | assert_param(IS_MPU_REGION_SIZE(MPU_Init->Size)); |
339 | assert_param(IS_MPU_REGION_SIZE(MPU_Init->Size)); |
339 | |
340 | 340 | MPU->RBAR = MPU_Init->BaseAddress; |
|
341 | MPU->RBAR = MPU_Init->BaseAddress; |
341 | MPU->RASR = ((uint32_t)MPU_Init->DisableExec << MPU_RASR_XN_Pos) | |
342 | MPU->RASR = ((uint32_t)MPU_Init->DisableExec << MPU_RASR_XN_Pos) | |
342 | ((uint32_t)MPU_Init->AccessPermission << MPU_RASR_AP_Pos) | |
343 | ((uint32_t)MPU_Init->AccessPermission << MPU_RASR_AP_Pos) | |
343 | ((uint32_t)MPU_Init->TypeExtField << MPU_RASR_TEX_Pos) | |
344 | ((uint32_t)MPU_Init->TypeExtField << MPU_RASR_TEX_Pos) | |
344 | ((uint32_t)MPU_Init->IsShareable << MPU_RASR_S_Pos) | |
345 | ((uint32_t)MPU_Init->IsShareable << MPU_RASR_S_Pos) | |
345 | ((uint32_t)MPU_Init->IsCacheable << MPU_RASR_C_Pos) | |
346 | ((uint32_t)MPU_Init->IsCacheable << MPU_RASR_C_Pos) | |
346 | ((uint32_t)MPU_Init->IsBufferable << MPU_RASR_B_Pos) | |
347 | ((uint32_t)MPU_Init->IsBufferable << MPU_RASR_B_Pos) | |
347 | ((uint32_t)MPU_Init->SubRegionDisable << MPU_RASR_SRD_Pos) | |
348 | ((uint32_t)MPU_Init->SubRegionDisable << MPU_RASR_SRD_Pos) | |
348 | ((uint32_t)MPU_Init->Size << MPU_RASR_SIZE_Pos) | |
349 | ((uint32_t)MPU_Init->Size << MPU_RASR_SIZE_Pos) | |
349 | ((uint32_t)MPU_Init->Enable << MPU_RASR_ENABLE_Pos); |
350 | ((uint32_t)MPU_Init->Enable << MPU_RASR_ENABLE_Pos); |
350 | } |
351 | } |
351 | else |
352 | else |
352 | { |
353 | { |
353 | MPU->RBAR = 0x00; |
354 | MPU->RBAR = 0x00; |
354 | MPU->RASR = 0x00; |
355 | MPU->RASR = 0x00; |
355 | } |
356 | } |
356 | } |
357 | } |
357 | #endif /* __MPU_PRESENT */ |
358 | #endif /* __MPU_PRESENT */ |
358 | |
359 | 359 | /** |
|
360 | /** |
360 | * @brief Gets the priority grouping field from the NVIC Interrupt Controller. |
361 | * @brief Gets the priority grouping field from the NVIC Interrupt Controller. |
361 | * @retval Priority grouping field (SCB->AIRCR [10:8] PRIGROUP field) |
362 | * @retval Priority grouping field (SCB->AIRCR [10:8] PRIGROUP field) |
362 | */ |
363 | */ |
363 | uint32_t HAL_NVIC_GetPriorityGrouping(void) |
364 | uint32_t HAL_NVIC_GetPriorityGrouping(void) |
364 | { |
365 | { |
365 | /* Get the PRIGROUP[10:8] field value */ |
366 | /* Get the PRIGROUP[10:8] field value */ |
366 | return NVIC_GetPriorityGrouping(); |
367 | return NVIC_GetPriorityGrouping(); |
367 | } |
368 | } |
368 | |
369 | 369 | /** |
|
370 | /** |
370 | * @brief Gets the priority of an interrupt. |
371 | * @brief Gets the priority of an interrupt. |
371 | * @param IRQn External interrupt number |
372 | * @param IRQn External interrupt number |
372 | * This parameter can be an enumerator of IRQn_Type enumeration |
373 | * This parameter can be an enumerator of IRQn_Type enumeration |
373 | * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32l1xxxx.h)) |
374 | * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32l1xxxx.h)) |
374 | * @param PriorityGroup the priority grouping bits length. |
375 | * @param PriorityGroup the priority grouping bits length. |
375 | * This parameter can be one of the following values: |
376 | * This parameter can be one of the following values: |
376 | * @arg NVIC_PRIORITYGROUP_0: 0 bits for pre-emption priority |
377 | * @arg NVIC_PRIORITYGROUP_0: 0 bits for pre-emption priority |
377 | * 4 bits for subpriority |
378 | * 4 bits for subpriority |
378 | * @arg NVIC_PRIORITYGROUP_1: 1 bits for pre-emption priority |
379 | * @arg NVIC_PRIORITYGROUP_1: 1 bits for pre-emption priority |
379 | * 3 bits for subpriority |
380 | * 3 bits for subpriority |
380 | * @arg NVIC_PRIORITYGROUP_2: 2 bits for pre-emption priority |
381 | * @arg NVIC_PRIORITYGROUP_2: 2 bits for pre-emption priority |
381 | * 2 bits for subpriority |
382 | * 2 bits for subpriority |
382 | * @arg NVIC_PRIORITYGROUP_3: 3 bits for pre-emption priority |
383 | * @arg NVIC_PRIORITYGROUP_3: 3 bits for pre-emption priority |
383 | * 1 bits for subpriority |
384 | * 1 bits for subpriority |
384 | * @arg NVIC_PRIORITYGROUP_4: 4 bits for pre-emption priority |
385 | * @arg NVIC_PRIORITYGROUP_4: 4 bits for pre-emption priority |
385 | * 0 bits for subpriority |
386 | * 0 bits for subpriority |
386 | * @param pPreemptPriority Pointer on the Preemptive priority value (starting from 0). |
387 | * @param pPreemptPriority Pointer on the Preemptive priority value (starting from 0). |
387 | * @param pSubPriority Pointer on the Subpriority value (starting from 0). |
388 | * @param pSubPriority Pointer on the Subpriority value (starting from 0). |
388 | * @retval None |
389 | * @retval None |
389 | */ |
390 | */ |
390 | void HAL_NVIC_GetPriority(IRQn_Type IRQn, uint32_t PriorityGroup, uint32_t* pPreemptPriority, uint32_t* pSubPriority) |
391 | void HAL_NVIC_GetPriority(IRQn_Type IRQn, uint32_t PriorityGroup, uint32_t* pPreemptPriority, uint32_t* pSubPriority) |
391 | { |
392 | { |
392 | /* Check the parameters */ |
393 | /* Check the parameters */ |
393 | assert_param(IS_NVIC_PRIORITY_GROUP(PriorityGroup)); |
394 | assert_param(IS_NVIC_PRIORITY_GROUP(PriorityGroup)); |
394 | /* Get priority for Cortex-M system or device specific interrupts */ |
395 | /* Get priority for Cortex-M system or device specific interrupts */ |
395 | NVIC_DecodePriority(NVIC_GetPriority(IRQn), PriorityGroup, pPreemptPriority, pSubPriority); |
396 | NVIC_DecodePriority(NVIC_GetPriority(IRQn), PriorityGroup, pPreemptPriority, pSubPriority); |
396 | } |
397 | } |
397 | |
398 | 398 | /** |
|
399 | /** |
399 | * @brief Sets Pending bit of an external interrupt. |
400 | * @brief Sets Pending bit of an external interrupt. |
400 | * @param IRQn External interrupt number |
401 | * @param IRQn External interrupt number |
401 | * This parameter can be an enumerator of IRQn_Type enumeration |
402 | * This parameter can be an enumerator of IRQn_Type enumeration |
402 | * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32l1xxxx.h)) |
403 | * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32l1xxxx.h)) |
403 | * @retval None |
404 | * @retval None |
404 | */ |
405 | */ |
405 | void HAL_NVIC_SetPendingIRQ(IRQn_Type IRQn) |
406 | void HAL_NVIC_SetPendingIRQ(IRQn_Type IRQn) |
406 | { |
407 | { |
407 | /* Set interrupt pending */ |
408 | /* Set interrupt pending */ |
408 | NVIC_SetPendingIRQ(IRQn); |
409 | NVIC_SetPendingIRQ(IRQn); |
409 | } |
410 | } |
410 | |
411 | 411 | /** |
|
412 | /** |
412 | * @brief Gets Pending Interrupt (reads the pending register in the NVIC |
413 | * @brief Gets Pending Interrupt (reads the pending register in the NVIC |
413 | * and returns the pending bit for the specified interrupt). |
414 | * and returns the pending bit for the specified interrupt). |
414 | * @param IRQn External interrupt number |
415 | * @param IRQn External interrupt number |
415 | * This parameter can be an enumerator of IRQn_Type enumeration |
416 | * This parameter can be an enumerator of IRQn_Type enumeration |
416 | * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32l1xxxx.h)) |
417 | * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32l1xxxx.h)) |
417 | * @retval status: - 0 Interrupt status is not pending. |
418 | * @retval status: - 0 Interrupt status is not pending. |
418 | * - 1 Interrupt status is pending. |
419 | * - 1 Interrupt status is pending. |
419 | */ |
420 | */ |
420 | uint32_t HAL_NVIC_GetPendingIRQ(IRQn_Type IRQn) |
421 | uint32_t HAL_NVIC_GetPendingIRQ(IRQn_Type IRQn) |
421 | { |
422 | { |
422 | /* Return 1 if pending else 0 */ |
423 | /* Return 1 if pending else 0 */ |
423 | return NVIC_GetPendingIRQ(IRQn); |
424 | return NVIC_GetPendingIRQ(IRQn); |
424 | } |
425 | } |
425 | |
426 | 426 | /** |
|
427 | /** |
427 | * @brief Clears the pending bit of an external interrupt. |
428 | * @brief Clears the pending bit of an external interrupt. |
428 | * @param IRQn External interrupt number |
429 | * @param IRQn External interrupt number |
429 | * This parameter can be an enumerator of IRQn_Type enumeration |
430 | * This parameter can be an enumerator of IRQn_Type enumeration |
430 | * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32l1xxxx.h)) |
431 | * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32l1xxxx.h)) |
431 | * @retval None |
432 | * @retval None |
432 | */ |
433 | */ |
433 | void HAL_NVIC_ClearPendingIRQ(IRQn_Type IRQn) |
434 | void HAL_NVIC_ClearPendingIRQ(IRQn_Type IRQn) |
434 | { |
435 | { |
435 | /* Clear pending interrupt */ |
436 | /* Clear pending interrupt */ |
436 | NVIC_ClearPendingIRQ(IRQn); |
437 | NVIC_ClearPendingIRQ(IRQn); |
437 | } |
438 | } |
438 | |
439 | 439 | /** |
|
440 | /** |
440 | * @brief Gets active interrupt ( reads the active register in NVIC and returns the active bit). |
441 | * @brief Gets active interrupt ( reads the active register in NVIC and returns the active bit). |
441 | * @param IRQn External interrupt number |
442 | * @param IRQn External interrupt number |
442 | * This parameter can be an enumerator of IRQn_Type enumeration |
443 | * This parameter can be an enumerator of IRQn_Type enumeration |
443 | * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32l1xxxx.h)) |
444 | * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32l1xxxx.h)) |
444 | * @retval status: - 0 Interrupt status is not pending. |
445 | * @retval status: - 0 Interrupt status is not pending. |
445 | * - 1 Interrupt status is pending. |
446 | * - 1 Interrupt status is pending. |
446 | */ |
447 | */ |
447 | uint32_t HAL_NVIC_GetActive(IRQn_Type IRQn) |
448 | uint32_t HAL_NVIC_GetActive(IRQn_Type IRQn) |
448 | { |
449 | { |
449 | /* Return 1 if active else 0 */ |
450 | /* Return 1 if active else 0 */ |
450 | return NVIC_GetActive(IRQn); |
451 | return NVIC_GetActive(IRQn); |
451 | } |
452 | } |
452 | |
453 | 453 | /** |
|
454 | /** |
454 | * @brief Configures the SysTick clock source. |
455 | * @brief Configures the SysTick clock source. |
455 | * @param CLKSource specifies the SysTick clock source. |
456 | * @param CLKSource specifies the SysTick clock source. |
456 | * This parameter can be one of the following values: |
457 | * This parameter can be one of the following values: |
457 | * @arg SYSTICK_CLKSOURCE_HCLK_DIV8: AHB clock divided by 8 selected as SysTick clock source. |
458 | * @arg SYSTICK_CLKSOURCE_HCLK_DIV8: AHB clock divided by 8 selected as SysTick clock source. |
458 | * @arg SYSTICK_CLKSOURCE_HCLK: AHB clock selected as SysTick clock source. |
459 | * @arg SYSTICK_CLKSOURCE_HCLK: AHB clock selected as SysTick clock source. |
459 | * @retval None |
460 | * @retval None |
460 | */ |
461 | */ |
461 | void HAL_SYSTICK_CLKSourceConfig(uint32_t CLKSource) |
462 | void HAL_SYSTICK_CLKSourceConfig(uint32_t CLKSource) |
462 | { |
463 | { |
463 | /* Check the parameters */ |
464 | /* Check the parameters */ |
464 | assert_param(IS_SYSTICK_CLK_SOURCE(CLKSource)); |
465 | assert_param(IS_SYSTICK_CLK_SOURCE(CLKSource)); |
465 | if (CLKSource == SYSTICK_CLKSOURCE_HCLK) |
466 | if (CLKSource == SYSTICK_CLKSOURCE_HCLK) |
466 | { |
467 | { |
467 | SysTick->CTRL |= SYSTICK_CLKSOURCE_HCLK; |
468 | SysTick->CTRL |= SYSTICK_CLKSOURCE_HCLK; |
468 | } |
469 | } |
469 | else |
470 | else |
470 | { |
471 | { |
471 | SysTick->CTRL &= ~SYSTICK_CLKSOURCE_HCLK; |
472 | SysTick->CTRL &= ~SYSTICK_CLKSOURCE_HCLK; |
472 | } |
473 | } |
473 | } |
474 | } |
474 | |
475 | 475 | /** |
|
476 | /** |
476 | * @brief This function handles SYSTICK interrupt request. |
477 | * @brief This function handles SYSTICK interrupt request. |
477 | * @retval None |
478 | * @retval None |
478 | */ |
479 | */ |
479 | void HAL_SYSTICK_IRQHandler(void) |
480 | void HAL_SYSTICK_IRQHandler(void) |
480 | { |
481 | { |
481 | HAL_SYSTICK_Callback(); |
482 | HAL_SYSTICK_Callback(); |
482 | } |
483 | } |
483 | |
484 | 484 | /** |
|
485 | /** |
485 | * @brief SYSTICK callback. |
486 | * @brief SYSTICK callback. |
486 | * @retval None |
487 | * @retval None |
487 | */ |
488 | */ |
488 | __weak void HAL_SYSTICK_Callback(void) |
489 | __weak void HAL_SYSTICK_Callback(void) |
489 | { |
490 | { |
490 | /* NOTE : This function Should not be modified, when the callback is needed, |
491 | /* NOTE : This function Should not be modified, when the callback is needed, |
491 | the HAL_SYSTICK_Callback could be implemented in the user file |
492 | the HAL_SYSTICK_Callback could be implemented in the user file |
492 | */ |
493 | */ |
493 | } |
494 | } |
494 | |
495 | 495 | /** |
|
496 | /** |
496 | * @} |
497 | * @} |
497 | */ |
498 | */ |
498 | |
499 | 499 | /** |
|
500 | /** |
500 | * @} |
501 | * @} |
501 | */ |
502 | */ |
502 | |
503 | 503 | #endif /* HAL_CORTEX_MODULE_ENABLED */ |
|
504 | #endif /* HAL_CORTEX_MODULE_ENABLED */ |
504 | /** |
505 | /** |
505 | * @} |
506 | * @} |
506 | */ |
507 | */ |
507 | |
508 | 508 | /** |
|
509 | /** |
509 | * @} |
510 | * @} |
510 | */ |
511 | */ |
511 | |
512 | - | ||
513 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
- |