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/* ... */
#include "main.h"
/* ... */
/* ... */
Includes
#define PRESSED_FIRST 0x00
Private define
uint8_t ubPressedButton = PRESSED_FIRST;
FATFS MSC_FatFs;
FIL MyFile;
char MSC_Path[4];
USBH_HandleTypeDef hUSBHost;
const uint32_t aBMPHeader[14]=
{0xB0364D42, 0x00000004, 0x00360000, 0x00280000, 0x01400000, 0x00F00000, 0x00010000,
0x00000020, 0xF5400000, 0x00000006, 0x00000000, 0x00000000, 0x00000000, 0x0000...};
typedef enum {
STORAGE_IDLE = 0,
STORAGE_READY,
...}MSC_ApplicationTypeDef;
MSC_ApplicationTypeDef Appli_state = STORAGE_IDLE;
Private variables
static void SystemClock_Config(void);
static void PicturePrepare(void);
static void Error_Handler(void);
static void SavePicture(void);
static void CAMERA_Capture(void);
static void USBH_UserProcess(USBH_HandleTypeDef *phost, uint8_t id);
#define RGB565_TO_R(pixel) (((pixel & 0x1F) << 3) | ((((pixel & 0x1F) << 3) & 0xE0) >> 5));
#define RGB565_TO_G(pixel) (((pixel & 0x7E0) >> 3) | ((((pixel & 0x7E0) >> 3) & 0xC0) >> 6));
#define RGB565_TO_B(pixel) (((pixel & 0xF800) >> 8) | ((((pixel & 0xF800) >> 8) & 0xE0) >> 5));
Private function prototypes
/* ... */
int main(void)
{
/* ... */
HAL_Init();
SystemClock_Config();
BSP_IO_Init();
BSP_LED_Init(LED1);
BSP_LED_Init(LED3);
USBH_Init(&hUSBHost, USBH_UserProcess, 0);
USBH_RegisterClass(&hUSBHost, USBH_MSC_CLASS);
USBH_Start(&hUSBHost);
BSP_PB_Init(BUTTON_KEY, BUTTON_MODE_GPIO);
FATFS_LinkDriver(&USBH_Driver, MSC_Path);
BSP_LCD_Init();
BSP_SDRAM_Init();
BSP_CAMERA_Init(RESOLUTION_R320x240);
BSP_CAMERA_ContinuousStart((uint8_t *)CAMERA_FRAME_BUFFER);
while (1)
{
USBH_Process(&hUSBHost);
switch(Appli_state)
{
case STORAGE_READY:
CAMERA_Capture();
break;
case STORAGE_READY:
case STORAGE_IDLE:
default:
break; default
}switch (Appli_state) { ... }
}while (1) { ... }
}{ ... }
/* ... */
void BSP_CAMERA_FrameEventCallback(void)
{
BSP_CAMERA_Suspend();
BSP_LCD_DrawRGBImage(0, 0, 320, 240, (uint8_t *)CAMERA_FRAME_BUFFER);
BSP_CAMERA_Resume();
}{ ... }
/* ... */
static void SavePicture(void)
{
FRESULT res1, res2;
uint32_t byteswritten;
static uint32_t counter = 0;
uint8_t str[30];
BSP_CAMERA_Suspend();
PicturePrepare();
sprintf((char *)str, "image_%lu.bmp", counter);
if(f_open(&MyFile, (const char*)str, FA_CREATE_ALWAYS | FA_WRITE) != FR_OK)
{
Error_Handler();
}if (f_open(&MyFile, (const char*)str, FA_CREATE_ALWAYS | FA_WRITE) != FR_OK) { ... }
else
{
res1 = f_write(&MyFile, (uint32_t *)aBMPHeader, 54, (void *)&byteswritten);
res2 = f_write(&MyFile, (uint16_t *)CAMERA_FRAME_BUFFER, (BSP_LCD_GetYSize()*BSP_LCD_GetXSize()*sizeof(uint32_t)), (void *)&byteswritten);
if((res1 != FR_OK) || (res2 != FR_OK) || (byteswritten == 0))
{
Error_Handler();
}if ((res1 != FR_OK) || (res2 != FR_OK) || (byteswritten == 0)) { ... }
else
{
f_close(&MyFile);
BSP_LED_On(LED1);
BSP_LCD_SetTextColor(LCD_COLOR_DARKGREEN);
BSP_LCD_DisplayStringAt(20, (BSP_LCD_GetYSize()-24), (uint8_t *)" Saved ", RIGHT_MODE);
HAL_Delay(2000);
counter++;
BSP_LED_Off(LED1);
}else { ... }
}else { ... }
}{ ... }
/* ... */
static void CAMERA_Capture(void)
{
while(1)
{
if(BSP_PB_GetState(BUTTON_KEY) != GPIO_PIN_RESET)
{
if(BSP_PB_GetState(BUTTON_KEY) != GPIO_PIN_SET)
{
SavePicture();
BSP_CAMERA_Resume();
}if (BSP_PB_GetState(BUTTON_KEY) != GPIO_PIN_SET) { ... }
}if (BSP_PB_GetState(BUTTON_KEY) != GPIO_PIN_RESET) { ... }
}while (1) { ... }
}{ ... }
/* ... */
static void PicturePrepare(void)
{
uint32_t address = CAMERA_FRAME_BUFFER;
uint16_t x = 0;
uint16_t y = 0;
uint16_t tmp = 0;
uint8_t aRGB[4];
address += ((BSP_LCD_GetXSize() * (BSP_LCD_GetYSize() - 1)) * 4);
for(y = 0; y < (BSP_LCD_GetYSize()); y++)
{
for(x = 0; x < (BSP_LCD_GetXSize()); x++)
{
tmp = BSP_LCD_ReadPixel(x, y);
aRGB[0] = RGB565_TO_R(tmp);
aRGB[1] = RGB565_TO_G(tmp);
aRGB[2] = RGB565_TO_B(tmp);
aRGB[3] = 0xFF;
if(BSP_SDRAM_WriteData(address, (uint32_t *)aRGB, 1) != SDRAM_OK)
{
Error_Handler();
}if (BSP_SDRAM_WriteData(address, (uint32_t *)aRGB, 1) != SDRAM_OK) { ... }
else
{
address += 4;
}else { ... }
}for (x = 0; x < (BSP_LCD_GetXSize()); x++) { ... }
address -= 8*BSP_LCD_GetXSize();
}for (y = 0; y < (BSP_LCD_GetYSize()); y++) { ... }
}{ ... }
/* ... */
static void USBH_UserProcess(USBH_HandleTypeDef *phost, uint8_t id)
{
switch (id)
{
case HOST_USER_SELECT_CONFIGURATION:
break;
case HOST_USER_SELECT_CONFIGURATION:
case HOST_USER_DISCONNECTION:
Appli_state = STORAGE_IDLE;
f_mount(NULL, (TCHAR const*)"", 0);
break;
case HOST_USER_DISCONNECTION:
case HOST_USER_CLASS_ACTIVE:
if(f_mount(&MSC_FatFs, (TCHAR const*)MSC_Path, 0) != FR_OK)
{
Error_Handler();
}if (f_mount(&MSC_FatFs, (TCHAR const*)MSC_Path, 0) != FR_OK) { ... }
else
{
Appli_state = STORAGE_READY;
}else { ... }
break;case HOST_USER_CLASS_ACTIVE:
}switch (id) { ... }
}{ ... }
/* ... */
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;
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
__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;
RCC_OscInitStruct.PLL.PLLR = 2;
HAL_RCC_OscConfig(&RCC_OscInitStruct);
HAL_PWREx_EnableOverDrive();
PeriphClkInitStruct.PLLSAI.PLLSAIM = 8;
PeriphClkInitStruct.PLLSAI.PLLSAIN = 384;
PeriphClkInitStruct.PLLSAI.PLLSAIP = RCC_PLLSAIP_DIV8;
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_CK48;
PeriphClkInitStruct.Clk48ClockSelection = RCC_CK48CLKSOURCE_PLLSAIP;
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
/* ... */
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
/* ... */
/* ... */