1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
31
32
33
34
37
40
41
42
47
48
49
55
56
62
63
64
65
66
67
68
69
70
71
72
73
74
75
83
84
85
90
91
92
93
94
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
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
188
189
190
193
194
/* ... */
#include "main.h"
/* ... */
/* ... */
Includes
uint32_t uwIncrementState = 0;
Private variables
static void SystemClock_Config(void);
Private function prototypes
/* ... */
int main(void)
{
/* ... */
/* ... */
HAL_Init();
SystemClock_Config();
BSP_LED_Init(LED3);
BSP_LED_Init(LED4);
BSP_PB_Init(BUTTON_KEY, BUTTON_MODE_EXTI);
while (1)
{
HAL_Delay(1000);
BSP_LED_Toggle(LED3);
}while (1) { ... }
}{ ... }
/* ... */
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
if(GPIO_Pin == KEY_BUTTON_PIN)
{
if (uwIncrementState == 0)
{
HAL_SuspendTick();
uwIncrementState = 1;
}if (uwIncrementState == 0) { ... }
else
{
HAL_ResumeTick();
uwIncrementState = 0;
}else { ... }
}if (GPIO_Pin == KEY_BUTTON_PIN) { ... }
}{ ... }
/* ... */
static void SystemClock_Config(void)
{
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitTypeDef RCC_OscInitStruct;
__HAL_RCC_PWR_CLK_ENABLE();
/* ... */
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 360;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 7;
HAL_RCC_OscConfig(&RCC_OscInitStruct);
HAL_PWREx_EnableOverDrive();
/* ... */
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);
}{ ... }
#ifdef USE_FULL_ASSERT
/* ... */
void assert_failed(uint8_t* file, uint32_t line)
{
/* ... */
while (1)
{
}while (1) { ... }
}assert_failed (uint8_t* file, uint32_t line) { ... }
/* ... */#endif
/* ... */
/* ... */