Outline ![]()
Files ![]()
loading...
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
/**
******************************************************************************
* @file stm32f4xx_hal_flash_ramfunc.c
* @author MCD Application Team
* @brief FLASH RAMFUNC module driver.
* This file provides a FLASH firmware functions which should be
* executed from internal SRAM
* + Stop/Start the flash interface while System Run
* + Enable/Disable the flash sleep while System Run
@verbatim
==============================================================================
##### APIs executed from Internal RAM #####
==============================================================================
[..]
*** ARM Compiler ***
--------------------
[..] RAM functions are defined using the toolchain options.
Functions that are be executed in RAM should reside in a separate
source module. Using the 'Options for File' dialog you can simply change
the 'Code / Const' area of a module to a memory space in physical RAM.
Available memory areas are declared in the 'Target' tab of the
Options for Target' dialog.
*** ICCARM Compiler ***
-----------------------
[..] RAM functions are defined using a specific toolchain keyword "__ramfunc".
*** GNU Compiler ***
--------------------
[..] RAM functions are defined using a specific toolchain attribute
"__attribute__((section(".RamFunc")))".
@endverbatim
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file in
* the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal.h"
/** @addtogroup STM32F4xx_HAL_Driver
* @{
*/
/** @defgroup FLASH_RAMFUNC FLASH RAMFUNC
* @brief FLASH functions executed from RAM
* @{
*/
#ifdef HAL_FLASH_MODULE_ENABLED
#if defined(STM32F410Tx) || defined(STM32F410Cx) || defined(STM32F410Rx) || defined(STM32F411xE) || defined(STM32F446xx) || defined(STM32F412Zx) || defined(STM32F412Vx) || \
defined(STM32F412Rx) || defined(STM32F412Cx)
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup FLASH_RAMFUNC_Exported_Functions FLASH RAMFUNC Exported Functions
* @{
*/
/** @defgroup FLASH_RAMFUNC_Exported_Functions_Group1 Peripheral features functions executed from internal RAM
* @brief Peripheral Extended features functions
*
@verbatim
===============================================================================
##### ramfunc functions #####
===============================================================================
[..]
This subsection provides a set of functions that should be executed from RAM
transfers.
@endverbatim
* @{
*/
/**
* @brief Stop the flash interface while System Run
* @note This mode is only available for STM32F41xxx/STM32F446xx devices.
* @note This mode couldn't be set while executing with the flash itself.
* It should be done with specific routine executed from RAM.
* @retval HAL status
*/
__RAM_FUNC HAL_StatusTypeDef HAL_FLASHEx_StopFlashInterfaceClk(void)
{
/* Enable Power ctrl clock */
__HAL_RCC_PWR_CLK_ENABLE();
/* Stop the flash interface while System Run */
SET_BIT(PWR->CR, PWR_CR_FISSR);
return HAL_OK;
}
/**
* @brief Start the flash interface while System Run
* @note This mode is only available for STM32F411xx/STM32F446xx devices.
* @note This mode couldn't be set while executing with the flash itself.
* It should be done with specific routine executed from RAM.
* @retval HAL status
*/
__RAM_FUNC HAL_StatusTypeDef HAL_FLASHEx_StartFlashInterfaceClk(void)
{
/* Enable Power ctrl clock */
__HAL_RCC_PWR_CLK_ENABLE();
/* Start the flash interface while System Run */
CLEAR_BIT(PWR->CR, PWR_CR_FISSR);
return HAL_OK;
}
/**
* @brief Enable the flash sleep while System Run
* @note This mode is only available for STM32F41xxx/STM32F446xx devices.
* @note This mode could n't be set while executing with the flash itself.
* It should be done with specific routine executed from RAM.
* @retval HAL status
*/
__RAM_FUNC HAL_StatusTypeDef HAL_FLASHEx_EnableFlashSleepMode(void)
{
/* Enable Power ctrl clock */
__HAL_RCC_PWR_CLK_ENABLE();
/* Enable the flash sleep while System Run */
SET_BIT(PWR->CR, PWR_CR_FMSSR);
return HAL_OK;
}
/**
* @brief Disable the flash sleep while System Run
* @note This mode is only available for STM32F41xxx/STM32F446xx devices.
* @note This mode couldn't be set while executing with the flash itself.
* It should be done with specific routine executed from RAM.
* @retval HAL status
*/
__RAM_FUNC HAL_StatusTypeDef HAL_FLASHEx_DisableFlashSleepMode(void)
{
/* Enable Power ctrl clock */
__HAL_RCC_PWR_CLK_ENABLE();
/* Disable the flash sleep while System Run */
CLEAR_BIT(PWR->CR, PWR_CR_FMSSR);
return HAL_OK;
}
/**
* @}
*/
/**
* @}
*/
#endif /* STM32F410xx || STM32F411xE || STM32F446xx || STM32F412Zx || STM32F412Vx || STM32F412Rx || STM32F412Cx */
#endif /* HAL_FLASH_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/