1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
28
29
32
33
36
37
38
39
40
46
47
48
49
50
51
52
53
54
55
56
57
64
65
66
71
93
94
99
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
153
154
155
156
157
158
159
160
164
165
166
167
184
185
186
189
190
/* ... */
#include "main.h"
/* ... */
/* ... */
Includes
uint32_t uwIncrementState = 0;
Private variables
static void SystemClock_Config(void);
static void Error_Handler(void);Private functions
int main(void)
{
/* ... */
HAL_Init();
SystemClock_Config();
BSP_LED_Init(LED2);
BSP_PB_Init(BUTTON_KEY, BUTTON_MODE_EXTI);
while(1)
{
HAL_Delay(500);
BSP_LED_Toggle(LED2);
}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 Error_Handler(void)
{
while(1)
{
}while (1) { ... }
}{ ... }
/* ... */
void SystemClock_Config(void)
{
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitTypeDef RCC_OscInitStruct;
__HAL_RCC_PWR_CLK_ENABLE();
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
#ifdef HSE_CRYSTAL
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
#elif defined (HSE_BYPASS)
RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
#endif
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 400;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
RCC_OscInitStruct.PLL.PLLQ = 7;
if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { ... }
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_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if(HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3) != HAL_OK)
{
Error_Handler();
}if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3) != HAL_OK) { ... }
}{ ... }
#ifdef USE_FULL_ASSERT
/* ... */
void assert_failed(uint8_t* file, uint32_t line)
{
/* ... */
}assert_failed (uint8_t* file, uint32_t line) { ... }
/* ... */
#endif
/* ... */
/* ... */