/**
* @brief Initialize image capture process (start its thread)
* @param None
* @retval None
*/
void IPCAM_ImageCaptureInit(void)
{
/* Initializes the DCMI interface (I2C and GPIO) used to configure the camera */
OV2640_HW_Init();
/* Read the OV9655/OV2640 Manufacturer identifier */
OV9655_ReadID(&OV9655_Camera_ID);
OV2640_ReadID(&OV2640_Camera_ID);
if(OV9655_Camera_ID.PID == 0x96)
{
IPCAM_ImageBuffer.Camera = OV9655_CAMERA;
}
else if(OV2640_Camera_ID.PIDH == 0x26)
{
IPCAM_ImageBuffer.Camera = OV2640_CAMERA;
}
else
{
ETHERNET_UpdateCameraInit();
return;
}
if (IPCAM_ImageBuffer.ImageFormat == BMP_QQVGA)
{
/* Initialize the camera structure */
IPCAM_ImageBuffer.ImageHeaderLen = 159;
IPCAM_ImageBuffer.ImageHeader = (uint8_t*)QQVGAImageHeader;
IPCAM_ImageBuffer.ImageLen = (160*120*2);
IPCAM_ImageBuffer.MaxImageLen = (160*120*3);
IPCAM_ImageBuffer.ImageData = (uint8_t*)FSMC_SRAM_ADDRESS;
IPCAM_ImageBuffer.BufferStatus = BUFFER_EMPTY;
}
else if (IPCAM_ImageBuffer.ImageFormat == BMP_QVGA)
{
/* Initialize the camera structure */
IPCAM_ImageBuffer.ImageHeaderLen = 160;
IPCAM_ImageBuffer.ImageHeader = (uint8_t*)QVGAImageHeader;
IPCAM_ImageBuffer.ImageLen = (320*240*2);
IPCAM_ImageBuffer.MaxImageLen = (320*240*3);
IPCAM_ImageBuffer.ImageData = (uint8_t*)FSMC_SRAM_ADDRESS;
IPCAM_ImageBuffer.BufferStatus = BUFFER_EMPTY;
}
/* Configure camera module mounted on STM322xG-EVAL board */
eth_Camera_Config();
/* Clears the DCMI's and DMA's pending bits */
DCMI_ClearITPendingBit(DCMI_IT_FRAME | DCMI_IT_OVF);
DMA_ClearITPendingBit(DMA2_Stream1, DMA_IT_TCIF1 | DMA_IT_TEIF1);
/* Enable DMA2 stream 1 and DCMI interface then start image capture */
DMA_Cmd(DMA2_Stream1, ENABLE);
DCMI_Cmd(ENABLE);
DCMI_CaptureCmd(ENABLE);
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
files (startup_stm32f40_41xxx.s/startup_stm32f427_437xx.s/startup_stm32f429_439xx.s)
before to branch to application main.
*/
/* SysTick end of count event each 10ms */
RCC_GetClocksFreq(&RCC_Clocks);
SysTick_Config(RCC_Clocks.HCLK_Frequency / 100);
/* Initialize LEDs mounted on EVAL board */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_LEDInit(LED3);
STM_EVAL_LEDInit(LED4);
STM_EVAL_LEDOn(LED1);
/* Initialize the LCD */
LCD_Init();
LCD_Clear(Black);
LCD_SetTextColor(White);
LCD_LOG_SetHeader((uint8_t*)"STM32 Camera Demo");
LCD_LOG_SetFooter ((uint8_t*)" Copyright (c) STMicroelectronics" );
/* ADC configuration */
ADC_Config();
/* Initializes the DCMI interface (I2C and GPIO) used to configure the camera */
OV2640_HW_Init();
/* Read the OV9655/OV2640 Manufacturer identifier */
OV9655_ReadID(&OV9655_Camera_ID);
OV2640_ReadID(&OV2640_Camera_ID);
if(OV9655_Camera_ID.PID == 0x96)
{
Camera = OV9655_CAMERA;
sprintf((char*)abuffer, "OV9655 Camera ID 0x%x", OV9655_Camera_ID.PID);
ValueMax = 2;
}
else if(OV2640_Camera_ID.PIDH == 0x26)
{
Camera = OV2640_CAMERA;
sprintf((char*)abuffer, "OV2640 Camera ID 0x%x", OV2640_Camera_ID.PIDH);
ValueMax = 2;
}
else
{
LCD_SetTextColor(LCD_COLOR_RED);
LCD_DisplayStringLine(LINE(4), (uint8_t*)"Check the Camera HW and try again");
while(1);
}
LCD_SetTextColor(LCD_COLOR_YELLOW);
LCD_DisplayStringLine(LINE(4), (uint8_t*)abuffer);
LCD_SetTextColor(LCD_COLOR_WHITE);
Delay(200);
/* Initialize demo */
ImageFormat = (ImageFormat_TypeDef)Demo_Init();
/* Configure the Camera module mounted on STM324xG-EVAL/STM324x7I-EVAL boards */
Demo_LCD_Clear();
LCD_DisplayStringLine(LINE(4), (uint8_t*)"Camera Init.. ");
Camera_Config();
sprintf((char*)abuffer, " Image selected: %s", ImageForematArray[ImageFormat]);
LCD_DisplayStringLine(LINE(4),(uint8_t*)abuffer);
/* Enable DMA2 stream 1 and DCMI interface then start image capture */
DMA_Cmd(DMA2_Stream1, ENABLE);
DCMI_Cmd(ENABLE);
/* Insert 100ms delay: wait 100ms */
Delay(200);
DCMI_CaptureCmd(ENABLE);
LCD_ClearLine(LINE(4));
Demo_LCD_Clear();
if(ImageFormat == BMP_QQVGA)
{
/* LCD Display window */
LCD_SetDisplayWindow(179, 239, 120, 160);
LCD_WriteReg(LCD_REG_3, 0x1038);
LCD_WriteRAM_Prepare();
}
else if(ImageFormat == BMP_QVGA)
{
/* LCD Display window */
LCD_SetDisplayWindow(239, 319, 240, 320);
LCD_WriteReg(LCD_REG_3, 0x1038);
LCD_WriteRAM_Prepare();
}
while(1)
{
/* Blink LD1, LED2 and LED4 */
STM_EVAL_LEDToggle(LED1);
STM_EVAL_LEDToggle(LED2);
STM_EVAL_LEDToggle(LED3);
STM_EVAL_LEDToggle(LED4);
/* Insert 100ms delay */
Delay(10);
/* Get the last ADC3 conversion result data */
uhADCVal = ADC_GetConversionValue(ADC3);
/* Change the Brightness of camera using "Brightness Adjustment" register:
For OV9655 camera Brightness can be positively (0x01 ~ 0x7F) and negatively (0x80 ~ 0xFF) adjusted
For OV2640 camera Brightness can be positively (0x20 ~ 0x40) and negatively (0 ~ 0x20) adjusted */
if(Camera == OV9655_CAMERA)
{
OV9655_BrightnessConfig(uhADCVal);
}
if(Camera == OV2640_CAMERA)
{
OV2640_BrightnessConfig(uhADCVal/2);
}
}
}
