SSL_Server
Select one of the symbols to view example projects that use it.
 
Outline
Includes
#include "stm32f4xx_hal.h"
TimHandle
HAL_InitTick(uint32_t)
HAL_SuspendTick()
HAL_ResumeTick()
HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *)
TIM6_DAC_IRQHandler()
Files
loading...
SourceVuSTM32 Libraries and SamplesSSL_ServerSrc/stm32f4xx_hal_timebase_tim.c
 
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
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
/** ****************************************************************************** * @file stm32f4xx_hal_timebase_tim.c * @author MCD Application Team * @brief HAL time base based on the hardware TIM. * * This file override the native HAL time base functions (defined as weak) * the TIM time base: * + Initializes the TIM peripheral generate a Period elapsed Event each 1ms * + HAL_IncTick is called inside HAL_TIM_PeriodElapsedCallback ie each 1ms * ****************************************************************************** * @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" Includes /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ TIM_HandleTypeDef TimHandle; /* Private function prototypes -----------------------------------------------*/ void TIM6_DAC_IRQHandler(void); /* Private functions ---------------------------------------------------------*/ /** * @brief This function configures the TIM6 as a time base source. * The time source is configured to have 1ms time base with a dedicated * Tick interrupt priority. * @note This function is called automatically at the beginning of program after * reset by HAL_Init() or at any time when clock is configured, by HAL_RCC_ClockConfig(). * @param TickPriority: Tick interrupt priority. * @retval HAL status *//* ... */ HAL_StatusTypeDef HAL_InitTick (uint32_t TickPriority) { RCC_ClkInitTypeDef clkconfig; uint32_t uwTimclock, uwAPB1Prescaler = 0U; uint32_t uwPrescalerValue = 0U; uint32_t pFLatency; /*Configure the TIM6 IRQ priority */ HAL_NVIC_SetPriority(TIM6_DAC_IRQn, TickPriority ,0U); /* Enable the TIM6 global Interrupt */ HAL_NVIC_EnableIRQ(TIM6_DAC_IRQn); /* Enable TIM6 clock */ __HAL_RCC_TIM6_CLK_ENABLE(); /* Get clock configuration */ HAL_RCC_GetClockConfig(&clkconfig, &pFLatency); /* Get APB1 prescaler */ uwAPB1Prescaler = clkconfig.APB1CLKDivider; /* Compute TIM6 clock */ if (uwAPB1Prescaler == RCC_HCLK_DIV1) { uwTimclock = HAL_RCC_GetPCLK1Freq(); }if (uwAPB1Prescaler == RCC_HCLK_DIV1) { ... } else { uwTimclock = 2*HAL_RCC_GetPCLK1Freq(); }else { ... } /* Compute the prescaler value to have TIM6 counter clock equal to 1MHz */ uwPrescalerValue = (uint32_t) ((uwTimclock / 1000000U) - 1U); /* Initialize TIM6 */ TimHandle.Instance = TIM6; /* Initialize TIMx peripheral as follow: + Period = [(TIM6CLK/1000) - 1]. to have a (1/1000) s time base. + Prescaler = (uwTimclock/1000000 - 1) to have a 1MHz counter clock. + ClockDivision = 0 + Counter direction = Up *//* ... */ TimHandle.Init.Period = (1000000U / 1000U) - 1U; TimHandle.Init.Prescaler = uwPrescalerValue; TimHandle.Init.ClockDivision = 0; TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP; TimHandle.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE; if(HAL_TIM_Base_Init(&TimHandle) == HAL_OK) { /* Start the TIM time Base generation in interrupt mode */ return HAL_TIM_Base_Start_IT(&TimHandle); }if (HAL_TIM_Base_Init(&TimHandle) == HAL_OK) { ... } /* Return function status */ return HAL_ERROR; }{ ... } /** * @brief Suspend Tick increment. * @note Disable the tick increment by disabling TIM6 update interrupt. * @param None * @retval None *//* ... */ void HAL_SuspendTick(void) { /* Disable TIM6 update Interrupt */ __HAL_TIM_DISABLE_IT(&TimHandle, TIM_IT_UPDATE); }{ ... } /** * @brief Resume Tick increment. * @note Enable the tick increment by Enabling TIM6 update interrupt. * @param None * @retval None *//* ... */ void HAL_ResumeTick(void) { /* Enable TIM6 Update interrupt */ __HAL_TIM_ENABLE_IT(&TimHandle, TIM_IT_UPDATE); }{ ... } /** * @brief Period elapsed callback in non blocking mode * @note This function is called when TIM6 interrupt took place, inside * HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment * a global variable "uwTick" used as application time base. * @param htim : TIM handle * @retval None *//* ... */ void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) { HAL_IncTick(); }{ ... } /** * @brief This function handles TIM interrupt request. * @param None * @retval None *//* ... */ void TIM6_DAC_IRQHandler(void) { HAL_TIM_IRQHandler(&TimHandle); }{ ... }
Details
Show:
from
Types: Columns: