1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
30
31
32
33
34
35
39
40
41
46
47
48
54
55
56
57
58
59
60
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
101
102
103
108
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
152
157
158
159
164
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
248
249
250
253
254
/* ... */
#include "main.h"
/* ... */
/* ... */
Includes
static DMA2D_HandleTypeDef hdma2d_eval;
static void SystemClock_Config(void);
static void Error_Handler(void);
static void LCD_LL_ConvertFrameToARGB8888(void *pSrc, void *pDst);Private function prototypes
/* ... */
int main(void)
{
/* ... */
HAL_Init();
SystemClock_Config();
/* ... */
BSP_AUDIO_OUT_Init(OUTPUT_DEVICE_SPEAKER, 0, 0);
AUDIO_IO_Write(AUDIO_I2C_ADDRESS, 0x200, 0);
AUDIO_IO_Write(AUDIO_I2C_ADDRESS, 0x300, 0x6010);
BSP_LCD_Init();
BSP_LCD_LayerDefaultInit(1, LCD_FRAME_BUFFER);
BSP_LCD_DisplayOn();
BSP_LCD_SelectLayer(1);
BSP_LCD_Clear(LCD_COLOR_WHITE);
BSP_CAMERA_Init(RESOLUTION_R480x272);
HAL_Delay(1000);
BSP_CAMERA_SnapshotStart((uint8_t *)CAMERA_FRAME_BUFFER);
while (1)
{
}while (1) { ... }
}{ ... }
/* ... */
void BSP_CAMERA_FrameEventCallback(void)
{
LCD_LL_ConvertFrameToARGB8888((uint32_t *)CAMERA_FRAME_BUFFER, (uint32_t *)LCD_FRAME_BUFFER);
}{ ... }
/* ... */
static void LCD_LL_ConvertFrameToARGB8888(void *pSrc, void *pDst)
{
__HAL_RCC_DMA2D_CLK_ENABLE();
hdma2d_eval.Init.Mode = DMA2D_M2M_PFC;
hdma2d_eval.Init.ColorMode = DMA2D_ARGB8888;
hdma2d_eval.Init.OutputOffset = 0;
hdma2d_eval.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d_eval.LayerCfg[1].InputAlpha = 0xFF;
hdma2d_eval.LayerCfg[1].InputColorMode = DMA2D_INPUT_RGB565;
hdma2d_eval.LayerCfg[1].InputOffset = 0;
hdma2d_eval.Instance = DMA2D;
if(HAL_DMA2D_Init(&hdma2d_eval) == HAL_OK)
{
if(HAL_DMA2D_ConfigLayer(&hdma2d_eval, 1) == HAL_OK)
{
if (HAL_DMA2D_Start(&hdma2d_eval, (uint32_t)pSrc, (uint32_t)pDst, BSP_LCD_GetXSize(), BSP_LCD_GetYSize()) == HAL_OK)
{
HAL_DMA2D_PollForTransfer(&hdma2d_eval, 30);
}if (HAL_DMA2D_Start(&hdma2d_eval, (uint32_t)pSrc, (uint32_t)pDst, BSP_LCD_GetXSize(), BSP_LCD_GetYSize()) == HAL_OK) { ... }
}if (HAL_DMA2D_ConfigLayer(&hdma2d_eval, 1) == HAL_OK) { ... }
}if (HAL_DMA2D_Init(&hdma2d_eval) == HAL_OK) { ... }
else
{
Error_Handler();
}else { ... }
}{ ... }
/* ... */
static void Error_Handler(void)
{
BSP_LED_On(LED3);
while(1)
{
}while (1) { ... }
}{ ... }
/* ... */
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 = 25;
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
/* ... */
/* ... */