uint8_t * OV7670_capture_image()
{
DCMI_InitTypeDef DCMI_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
/* DMA2 Stream1 Configuration */
DMA_DeInit(DMA2_Stream1);
DMA_InitStructure.DMA_Channel = DMA_Channel_1;
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)(&DCMI->DR);
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t) image_buffer;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
DMA_InitStructure.DMA_BufferSize = (IMG_SIZE/sizeof(uint32_t));
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
/* DMA2 IRQ channel Configuration */
DMA_Init(DMA2_Stream1, &DMA_InitStructure);
DMA_Cmd(DMA2_Stream1, ENABLE);
DCMI_Cmd(ENABLE);
DCMI_CaptureCmd(ENABLE);
int temp;
// Wait until DCMI DMA Rx transfer is complete
while (DMA_GetFlagStatus(DMA2_Stream1, DMA_FLAG_TCIF1) == RESET)
{
temp = DMA_GetCurrDataCounter(DMA2_Stream1);
temp = DCMI->CR;
temp = DCMI->RISR;
}
/* Clear all DMA Streams flags */
DMA_ClearFlag(DMA2_Stream1, DMA_FLAG_HTIF1 | DMA_FLAG_TCIF1);
/* Disable the DMA Rx Stream */
DMA_Cmd(DMA2_Stream1, DISABLE);
//Do not disable DCMI peripheral untill DMA disable command gets through
while(DMA_GetCmdStatus(DMA2_Stream1) == ENABLE)
{}
DCMI_Cmd(DISABLE);
return (uint8_t*) image_buffer;
}
void Dcmi::DisableDCMI(){
DCMI_CaptureCmd(DISABLE);
DCMI_Cmd(DISABLE);
DMA_Cmd(DMA2_Stream1, DISABLE);
DCMI_CROPCmd(DISABLE);
DCMI_ITConfig(DCMI_IT_FRAME, DISABLE);
}
/**
* @brief Disable DCMI DMA stream
*/
void dcmi_dma_disable()
{
/* Disable DMA2 stream 1 and DCMI interface then stop image capture */
DMA_Cmd(DMA2_Stream1, DISABLE);
DCMI_Cmd(DISABLE);
DCMI_CaptureCmd(DISABLE);
}
/**
* @brief Enable DCMI DMA stream
*/
void dcmi_dma_enable()
{
/* Enable DMA2 stream 1 and DCMI interface then start image capture */
DMA_Cmd(DMA2_Stream1, ENABLE);
DCMI_Cmd(ENABLE);
DCMI_CaptureCmd(ENABLE);
dma_it_init();
}
void Dcmi::EnableDCMI(){
DCMI_ITConfig(DCMI_IT_VSYNC, ENABLE);
DCMI_ITConfig(DCMI_IT_LINE, ENABLE);
DCMI_ITConfig(DCMI_IT_FRAME, ENABLE);
DCMI_ITConfig(DCMI_IT_OVF, ENABLE);
DCMI_ITConfig(DCMI_IT_ERR, ENABLE);
DMA_Cmd(DMA2_Stream1, ENABLE);
DCMI_Cmd(ENABLE);
}
/**
* @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);
}
void DMA_init() {
DMA_InitTypeDef DMA_InitStructure;
__IO
uint32_t Timeout = HSE_STARTUP_TIMEOUT;
RCC_AHB1PeriphClockCmd(DMA_Camera_STREAM_CLOCK, ENABLE);
DMA_DeInit(DMA_CameraToRAM_Stream);
while (DMA_GetCmdStatus(DMA_CameraToRAM_Stream) != DISABLE) {
}
DMA_InitStructure.DMA_Channel = DMA_Camera_Channel;
DMA_InitStructure.DMA_PeripheralBaseAddr = DCMI_DR_ADDRESS;
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t) RAM_Buffer;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
DMA_InitStructure.DMA_BufferSize = picture_x * picture_y * 2 / 4;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_Full;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_Init(DMA_CameraToRAM_Stream, &DMA_InitStructure);
Timeout = HSE_STARTUP_TIMEOUT;
while ((DMA_GetCmdStatus(DMA_CameraToRAM_Stream) != ENABLE)
&& (Timeout-- > 0)) {
}
// Check if a timeout condition occurred
if (Timeout == 0) {
// Manage the error: to simplify the code enter an infinite loop
while (1) {
// Dopísa program
}
}
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_InitStructure.NVIC_IRQChannel = DCMI_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
DCMI_ITConfig(DCMI_IT_FRAME, ENABLE);
DCMI_ITConfig(DCMI_IT_VSYNC, ENABLE);
DCMI_ITConfig(DCMI_IT_LINE, ENABLE);
// Enable DCMI Capture mode
DCMI_Cmd(ENABLE);
DCMI_CaptureCmd(ENABLE);
// DMA Stream enable
DMA_Cmd(DMA_CameraToRAM_Stream, ENABLE);
}
/**
* Interrupt Handler for DCMI
*/
void DCMI_IRQHandler() {
if (DCMI_GetFlagStatus(DCMI_FLAG_FRAMERI) == SET) {
DCMI_ClearFlag(DCMI_FLAG_FRAMERI);
#ifdef CAM
cam.ProcessData();
#endif
} else if (DCMI_GetFlagStatus(DCMI_FLAG_OVFRI) == SET) {
DCMI_ClearFlag(DCMI_FLAG_OVFRI);
} else if (DCMI_GetFlagStatus(DCMI_FLAG_ERRRI) == SET) {
DCMI_ClearFlag(DCMI_FLAG_ERRRI);
}
DCMI_CaptureCmd(DISABLE);
DCMI_Cmd(DISABLE);
DMA_Cmd(DMA2_Stream1, DISABLE);
DCMI_Cmd(DISABLE);
DCMI_ITConfig(DCMI_IT_FRAME, DISABLE);
image = true;
}
/**
* Taking Picture
*/
void Camera::takePicture() {
DCMI_ITConfig(DCMI_IT_FRAME, ENABLE);
DCMI_ITConfig(DCMI_IT_OVF, ENABLE);
DCMI_ITConfig(DCMI_IT_ERR, ENABLE);
//DCMI_ITConfig(DCMI_IT_VSYNC, ENABLE);
//DCMI_ITConfig(DCMI_IT_LINE, ENABLE);
DMA_Cmd(DMA2_Stream1, ENABLE);
DCMI_Cmd(ENABLE);
DCMI_CaptureCmd(ENABLE);
AT(NOW() + 10*MILLISECONDS);
image = false;
}
/**
* @brief Return the module main menu from Webserver page
* @param None
* @retval None
*/
static void return_from_webserver(void)
{
EthernetSettings.WebserverEnabled = 0;
EthernetSettings.InitDone = 0;
ETH_Stop();
vTaskPrioritySet(Task_Handle, (configMAX_PRIORITIES - 1));
if(ETH_Task_Handle != NULL)
{
vTaskDelete(ETH_Task_Handle);
ETH_Task_Handle = NULL;
}
if (Ethernet_xSemaphore != NULL)
{
vQueueDelete( Ethernet_xSemaphore );
Ethernet_xSemaphore = NULL;
}
if(TCPIP_Task_Handle != NULL)
{
vTaskSuspend(TCPIP_Task_Handle);
}
if(HTTP_Task_Handle != NULL)
{
vTaskDelete(HTTP_Task_Handle);
HTTP_Task_Handle = NULL;
}
if(DHCP_Task_Handle != NULL)
{
vTaskDelete(DHCP_Task_Handle);
DHCP_Task_Handle = NULL;
}
DMA_Cmd(DMA2_Stream1, DISABLE);
DCMI_Cmd(DISABLE);
DCMI_CaptureCmd(DISABLE);
netif_remove(&xnetif);
ETHERNET_SwitchPage(EthernetWebServerPage, ETHERNET_MAIN_PAGE);
EthernetWebServerPage = NULL;
}
int main()
{
SystemInit();
if (SysTick_Config(SystemCoreClock / 3119))//1ms
{
/* Capture error */
while (1);
}
STM_EVAL_LEDInit(LED3);
STM3240F_LCD_Init();
LCD_Clear(Black);
LCD_SetColors(Green,Black);
LCD_SetFont(&Font8x8);
if(OV9655_Configuration()==0xFF)
{
LCD_DisplayStringLine(0,0,"Camera Failed");
}else{
LCD_DisplayStringLine(0,0,"Camera OK!");
}
/* Start Image capture */
LCD_SetDisplayWindow(0, 0, 319, 239);
LCD_WriteRAM_Prepare();
DCMI_CaptureCmd(ENABLE);
/* Enable DMA transfer */
DMA_Cmd(DMA2_Stream1, ENABLE);
/* Enable DCMI interface */
DCMI_Cmd(ENABLE);
/* Start Image capture */
DCMI_CaptureCmd(ENABLE);
// Delay(2);
// DCMI_SingleRandomWrite(OV9655_DEVICE_WRITE_ADDRESS,0x8d, 0x10);//Camera Color Test Mode Enabled
// temp=DCMI_SingleRandomRead(OV9655_DEVICE_WRITE_ADDRESS,OV9655_COM15);
// sprintf(data,"Okunan Data=0x%02X",temp);
// LCD_DisplayStringLine(0,0,data);
while(1)
{
}
}
u8 Cam_Get_Image(void)
{
DCMI_Cmd(ENABLE);
DMA_Cmd(DMA2_Stream1, ENABLE);
DCMI_CaptureCmd(ENABLE);
jpegCaptureDoneITFLG = 0;
jpegCaptureTime = 0;
while(jpegCaptureDoneITFLG ==0)
{
if(jpegCaptureTime > CAMERA_IMGCAPTURE_TIMEOUT)
{
jpegTotalTime += CAMERA_IMGCAPTURE_TIMEOUT;//Camera image capture failed
SerComSendMessageUser("Camera Capture Timed out\r\n");
return 0;
}
}
jpegTotalTime += jpegCaptureTime; //store total capture time
return 1;
}
u8 Cam_click_images(u16 dly,u32 * nseq,u32 * fsz)
{
u8 err=0;
u8 sb[50];
u8 handle;
u32 seq;
u32 sz[2],i,k = 0;
jpegTotalTime = 0;
sz[0] = sz[1] = 0;
ENB_CAM1_ACCESS();
CamApi_Init_Regs();
if(Cam_Get_Image()==0)//capture image on DCMI
err |= ERROR_HARD_CAM1;
ENB_CAM2_ACCESS();
CamApi_Init_Regs();
//move image to buffer and calculate image size
if(JpegBuffer[0] == 0xFF && JpegBuffer[1] == 0xD8)
{
i=0;
while(i < JPEG_BUFFER_SZ)
{
if(i < OFFLOAD_BUFFER_1SZ)
{
Jpeg_b1[i] = JpegBuffer[i];//store in offload buffer 1
}
else
{
Jpeg_b2[ i - OFFLOAD_BUFFER_1SZ] = JpegBuffer[i];//store in offload buffer 2
}
if(i > 2 )
{
if(JpegBuffer[i] == 0xD9 && JpegBuffer[i-1] == 0xFF)
{
sz[0] = i+1;//store size of this image
break;
}
}
i++;
}
}
JpegBuffer[0] = 0;//clear jpeg header
DCMI_Cmd(DISABLE);//Prepare for next image capture
DCMI_CaptureCmd(DISABLE);
Cam_DCMI_Config();
Cam_DMA_Init();
//Reset DMA if required
if(Cam_Get_Image()==0) //capture image on DCMI
err |= ERROR_HARD_CAM2;
SLEEP_CAM12();
DMA_Cmd(DMA2_Stream1, DISABLE);
DCMI_Cmd(DISABLE);
DCMI_CaptureCmd(DISABLE);
Cam_DCMI_Config();
Cam_DMA_Init();
//Get size of second image
if(JpegBuffer[0] == 0xFF && JpegBuffer[1] == 0xD8)
{
for(i=0;i<JPEG_BUFFER_SZ;i++)
{
if(JpegBuffer[i] == 0xFF && JpegBuffer[i+1] == 0xD9)
{
sz[1] = i+2;
break;
}
}
}
if(sz[0] > 0 || sz [1] > 0 )
{
//Get a File Access
handle = FlashCreateNewFile(&seq);
i = 0;//This is the variabe to count bytes written
//Write debug imformation header , settings poplated on bootup
imgdebug.header= 0XABCDEF01;
imgdebug.captime = jpegTotalTime;
imgdebug.error = err;
imgdebug.filesz[0]=sz[1];
imgdebug.filesz[1]=sz[0];
imgdebug.seqno=seq;
imgdebug.footer = 0xFFFE;
FlashFileWrite(i,handle,(void*)&imgdebug.header,sizeof(imgdebug));
i = 512;//Leaving a 512 byte space to reduce RAM . TODO optimize this
if(sz[0] > 0 )//write Second file
{
i += FlashFileWrite(i,handle,JpegBuffer,sz[1]);
#ifdef UART_IMG_DUMP
SerComSendArrayUser(JpegBuffer,sz[1]);
#endif
}
if(sz[0] > 0 )//write First file
{
k = i%512; //Continue writing at 512 byte boundary
i += 512-k; //TODO optimize this
if( sz[0] < OFFLOAD_BUFFER_1SZ)
{
i += FlashFileWrite(i,handle,Jpeg_b1,sz[0]);
#ifdef UART_IMG_DUMP
SerComSendArrayUser(Jpeg_b1,sz[0]);
#endif
}
else
{
i += FlashFileWrite(i,handle,Jpeg_b1,OFFLOAD_BUFFER_1SZ);//This will automatically end at 512 boundary as it is multiple of 1024
i += FlashFileWrite(i,handle,Jpeg_b2,sz[0] - OFFLOAD_BUFFER_1SZ);
#ifdef UART_IMG_DUMP
SerComSendArrayUser(Jpeg_b1,OFFLOAD_BUFFER_1SZ);
SerComSendArrayUser(Jpeg_b2,sz[0] - OFFLOAD_BUFFER_1SZ);
#endif
}
}
FlashFileBytesWritten = i;
FlashCloseFile(handle,seq);//Close File Access
}
//update sequence and filesize variable
*nseq = seq;
*fsz = i;
//Report bytes written and sequence number
return err;
}
/**
* @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
file (startup_stm32f4xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f4xx.c file
*/
/* SysTick end of count event each 10ms */
RCC_GetClocksFreq(&RCC_Clocks);
SysTick_Config(RCC_Clocks.HCLK_Frequency / 100);
LIS302DL_Reset();
/* SET USER Key */
/* Configure EXTI Line0 (connected to PA0 pin) in interrupt mode */
EXTILine0_Config();
/* Initialize the LCD */
STM32f4_Discovery_LCD_Init();
LCD_Clear(LCD_COLOR_WHITE);
LCD_SetTextColor(LCD_COLOR_BLUE);
DCMI_Control_IO_Init();
LCD_DisplayStringLine(LINE(2), " Camera Init..");
/* OV9655 Camera Module configuration */
if (DCMI_OV9655Config() == 0x00)
{
LCD_DisplayStringLine(LINE(2), " ");
LCD_SetDisplayWindow(0, 0, 320, 240);
LCD_WriteRAM_Prepare();
/* Start Image capture and Display on the LCD *****************************/
/* Enable DMA transfer */
DMA_Cmd(DMA2_Stream1, ENABLE);
/* Enable DCMI interface */
DCMI_Cmd(ENABLE);
/* Start Image capture */
DCMI_CaptureCmd(ENABLE);
/*init the picture count*/
init_picture_count();
KeyPressFlg = 0;
while (1)
{
/* Insert 100ms delay */
Delay(100);
if (KeyPressFlg) {
KeyPressFlg = 0;
/* press user KEY take a photo */
if (capture_Flag == ENABLE) {
DCMI_CaptureCmd(DISABLE);
capture_Flag = DISABLE;
Capture_Image_TO_Bmp();
LCD_SetDisplayWindow(0, 0, 320, 240);
LCD_WriteRAM_Prepare();
DCMI_CaptureCmd(ENABLE);
capture_Flag = ENABLE;
}
}
}
} else {
LCD_SetTextColor(LCD_COLOR_RED);
LCD_DisplayStringLine(LINE(2), "Camera Init.. fails");
LCD_DisplayStringLine(LINE(4), "Check the Camera HW ");
LCD_DisplayStringLine(LINE(5), " and try again ");
/* Go to infinite loop */
while (1);
}
}
void DCMI_DMA_init(void) {
GPIO_InitTypeDef GPIO_InitStructure;
DCMI_InitTypeDef DCMI_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_DCMI, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE);
// GPIO config
// PA4 - HREF (HSYNC), PA6 - PCLK (PIXCLK)
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_6; //PA4 - HREF (HSYNC)
//PA6 - PCLK (PIXCLK)
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// PB6 - D5, PB7 - VSYNC, PB8 - D6, PB9 - D7
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
// PC6 - D0, PC7 - D1, PC8 - D2, PC9 - D3, PC11 - D4
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_11;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOC, &GPIO_InitStructure);
// GPIO AF config
GPIO_PinAFConfig(GPIOA, GPIO_PinSource4, GPIO_AF_DCMI);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource6, GPIO_AF_DCMI);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource6, GPIO_AF_DCMI);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource7, GPIO_AF_DCMI);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource8, GPIO_AF_DCMI);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource9, GPIO_AF_DCMI);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource6, GPIO_AF_DCMI);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource7, GPIO_AF_DCMI);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource8, GPIO_AF_DCMI);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource9, GPIO_AF_DCMI);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource11, GPIO_AF_DCMI);
// DCMI config
DCMI_DeInit();
DCMI_InitStructure.DCMI_CaptureMode = DCMI_CaptureMode_SnapShot; //DCMI_CaptureMode_SnapShot
DCMI_InitStructure.DCMI_ExtendedDataMode = DCMI_ExtendedDataMode_8b;
DCMI_InitStructure.DCMI_CaptureRate = DCMI_CaptureRate_All_Frame; //DCMI_CaptureRate_All_Frame;
DCMI_InitStructure.DCMI_PCKPolarity = DCMI_PCKPolarity_Rising;
DCMI_InitStructure.DCMI_HSPolarity = DCMI_HSPolarity_Low;
DCMI_InitStructure.DCMI_VSPolarity = DCMI_VSPolarity_High;
DCMI_InitStructure.DCMI_SynchroMode = DCMI_SynchroMode_Hardware;
DCMI_Init(&DCMI_InitStructure);
DCMI_ITConfig(DCMI_IT_FRAME, ENABLE);
DCMI_ITConfig(DCMI_IT_OVF, ENABLE);
DCMI_ITConfig(DCMI_IT_ERR, ENABLE);
// DMA config
DMA_DeInit(DMA2_Stream1);
DMA_InitStructure.DMA_Channel = DMA_Channel_1;
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t) (&DCMI->DR);
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t) frame_buffer;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
DMA_InitStructure.DMA_BufferSize = IMG_ROWS * IMG_COLUMNS / 2;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_Full;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_Init(DMA2_Stream1, &DMA_InitStructure);
DMA_ITConfig(DMA2_Stream1, DMA_IT_TC, ENABLE);
DMA_ITConfig(DMA2_Stream1, DMA_IT_TE, ENABLE);
/* DMA2 IRQ channel Configuration */
NVIC_InitStructure.NVIC_IRQChannel = DMA2_Stream1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
NVIC_InitStructure.NVIC_IRQChannel = DCMI_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
DMA_Cmd(DMA2_Stream1, ENABLE);
DCMI_Cmd(ENABLE);
DCMI_CaptureCmd(ENABLE);
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
//RCC_Config();
//GPIO_Config();
//RCC_MCO1Config(RCC_MCO1Source_PLLCLK,RCC_MCO1Div_1);
uint8_t tmpreg;
LIS302DL_InitTypeDef LIS302DL_InitStruct;
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f4xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f4xx.c file
*/
/* SysTick end of count event each 10ms */
RCC_GetClocksFreq(&RCC_Clocks);
SysTick_Config(RCC_Clocks.HCLK_Frequency / 100);
//NVIC_SetPriority(SysTick_IRQn, -1);
/* MEMS configuration and set int1/int2 pins*/
LIS302DL_InitStruct.Power_Mode = LIS302DL_LOWPOWERMODE_ACTIVE;
LIS302DL_InitStruct.Output_DataRate = LIS302DL_DATARATE_100;
LIS302DL_InitStruct.Axes_Enable = LIS302DL_XYZ_ENABLE;
LIS302DL_InitStruct.Full_Scale = LIS302DL_FULLSCALE_2_3;
LIS302DL_InitStruct.Self_Test = LIS302DL_SELFTEST_NORMAL;
LIS302DL_Init(&LIS302DL_InitStruct);
//Set INT1/INT2 pins
tmpreg = 0x40;
LIS302DL_Write(&tmpreg, LIS302DL_CTRL_REG3_ADDR, 1);
//Initialize the touchscreen
TSC_Init();
/* Initialize LEDs and push-buttons mounted on STM324xG-EVAL board */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
//STM_EVAL_LEDInit(LED3);
//STM_EVAL_LEDInit(LED4);
/* Initialize the LCD */
STM324xG_LCD_Init();
//STM_EVAL_LEDOn(LED1);
LCD_Clear(Black);
LCD_SetTextColor(White);
LCD_LOG_SetHeader("STM32 Camera Demo");
LCD_LOG_SetFooter (" Copyright (c) STMicroelectronics" );
/* ADC configuration */
ADC_Config();
/* Initializes the DCMI interface (I2C and GPIO) used to configure the camera */
//OV9655_HW_Init();
OV9712_HW_Init();
/* Read the OV9655/OV2640 Manufacturer identifier */
//OV9655_ReadID(&OV9655_Camera_ID);
OV9712_ReadID(&OV9712_Camera_ID);
//while(1);
if(OV9655_Camera_ID.PID == 0x96)
{
Camera = OV9712_CAMERA;
sprintf((char*)buffer, "OV9655 Camera ID 0x%x", OV9655_Camera_ID.PID);
ValueMax = 2;
}
else if(OV9712_Camera_ID.PIDH == 0x97)
{
Camera = OV9712_CAMERA;
sprintf((char*)buffer, "OV9712 Camera ID 0x%x", OV9712_Camera_ID.PIDH);
ValueMax = 2;
}
else
{
LCD_SetTextColor(LCD_COLOR_RED);
sprintf((char*)buffer, "OV Camera ID 0x%02x%02x", OV9655_Camera_ID.Version, OV9712_Camera_ID.PIDH);
LCD_DisplayStringLine(LINE(4), buffer);
while(1);
}
LCD_SetTextColor(LCD_COLOR_YELLOW);
LCD_DisplayStringLine(LINE(4), (uint8_t*)buffer);
LCD_SetTextColor(LCD_COLOR_WHITE);
Delay(200);
/* Initialize demo */
ImageFormat = (ImageFormat_TypeDef)BMP_QVGA;
/* Configure the Camera module mounted on STM324xG-EVAL board */
Demo_LCD_Clear();
LCD_DisplayStringLine(LINE(4), "Camera Init.. ");
Camera_Config();
sprintf((char*)buffer, " Image selected: %s", ImageForematArray[ImageFormat]);
LCD_DisplayStringLine(LINE(4),(uint8_t*)buffer);
LCD_ClearLine(LINE(4));
Demo_LCD_Clear();
if(ImageFormat == BMP_QQVGA)
{
/* LCD Display window */
LCD_SetDisplayWindow(60, 80, 160, 120);
ReverseLCD();
LCD_WriteRAM_Prepare();
}
else if(ImageFormat == BMP_QVGA)
{
/* LCD Display window */
LCD_SetDisplayWindow(0, 0, 320, 240);
ReverseLCD();
LCD_WriteRAM_Prepare();
}
{
int i, j;
for (j = 0; j < 16; j++)
{
LCD_SetDisplayWindow(0, (240 / 16) * j, 320, (240 / 16));
LCD_WriteRAM_Prepare();
for (i = 0; i < 320 * 240 / 16; i++)
{
LCD_WriteRAM(0x0003 << j);
}
}
}
/* 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);
while(1)
{
OV9655_BrightnessConfig(0x7F);//
//static int step = 0;
int i, block, begin;
unsigned short *p;
if (!bShot)
{
begin = (datablock - 11 + 48) % 48;
for (block = begin; block < begin + 11; block++)
{
p = (unsigned short *)(0x20000000 + (320 * 240 * 2 / 16) * ((block) % 12));
LCD_SetDisplayWindow(0, (block % 16) * (240 / 16), 320, (240 / 16));
//LCD_SetCursor(0, (block % 16) * (240 / 16));
LCD_WriteRAM_Prepare();
for (i = 0; i < 320 * 240 / 16; i++)
{
LCD_WriteRAM(*p++);
}
}
}
if (TSC_TouchDet())
{
int x, y;
TP_GetAdXY(&x, &y);
if (x > 300 && x < 2800 && y > 300 && y < 2800)
{
if (x < 1550 && y < 1550)
{
uint32_t StartSector = 0, EndSector = 0, Address = 0, SectorCounter = 0;
int m;
//拍照bShot
bShot = 1;
while(datablock % 16);
DMA_Cmd(DMA2_Stream1, DISABLE);
DCMI_Cmd(DISABLE);
//STM_EVAL_LEDOn(LED2);
DMA_ClearFlag(DMA2_Stream1, 0x2F7D0F7D);
DMA_ClearFlag(DMA2_Stream1, 0x0F7D0F7D);
DMA_ClearITPendingBit(DMA2_Stream1, DMA_IT_TCIF1);
datablock = 0;
DMA2_Stream1->M0AR = 0x20000000 + 9600 * (datablock % 12);
DMA_SetCurrDataCounter(DMA2_Stream1, (320 * 240 * 2 / 4) / 16);
DCMI_Cmd(ENABLE);
DMA_Cmd(DMA2_Stream1, ENABLE);
{
unsigned long *p, *q;
while(datablock < 4); //等待准备好前4块数据，就将这4块数据导入到0x10000000+0x50000之后。
q = (unsigned long *)(0x20000000);
p = (unsigned long *)(0x10000000 + 0x5000);
while (q < (unsigned long *)(0x20000000 + 4 * (320 * 240 * 2 / 16)))
{
*p = *q;
p++;
q++;
}
}
while(datablock < 16); //等待全部采集完成。
STM_EVAL_LEDOn(LED2); //LED2亮表示采集完成。
LCD_SetDisplayWindow(0, 0, 320, 240);
LCD_WriteRAM_Prepare();
LCD_Clear(Black);
//RAM位置
/*
序号 地址 大小
1: 0x10005000+9600*0 9600
2: 0x10005000+9600*1 9600
3: 0x10005000+9600*2 9600
4: 0x10005000+9600*3 9600
5: 0x20000000+9600*5 9600
6: 0x20000000+9600*6 9600
7: 0x20000000+9600*7 9600
8: 0x20000000+9600*8 9600
9: 0x20000000+9600*9 9600
10: 0x20000000+9600*10 9600
11: 0x20000000+9600*11 9600
12: 0x20000000+9600*0 9600
13: 0x20000000+9600*1 9600
14: 0x20000000+9600*2 9600
15: 0x20000000+9600*3 9600
*/
for (m = 0; m < 16; m++) //显示保存的图片
{
unsigned short *q;
if (m < 4)
{
q = (unsigned short *)(0x10000000 + 0x5000 + m * (320 * 240 * 2 / 16));
}
else
{
q = (unsigned short *)(0x20000000 + (m % 12) * (320 * 240 * 2 / 16));
}
LCD_SetDisplayWindow(0, m * (240 / 16), 320, (240 / 16));
LCD_WriteRAM_Prepare();
for (i = 0; i < 320 * 240 / 16; i++)
{
LCD_WriteRAM(*q++);
}
}
/* Erase the user Flash area ***********/
FLASH_Unlock();
/* Clear pending flags (if any) */
FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |
FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR|FLASH_FLAG_PGSERR);
/* Get the number of the start and end sectors */
StartSector = GetSector(FLASH_USER_START_ADDR);
EndSector = GetSector(FLASH_USER_END_ADDR);
for (SectorCounter = StartSector; SectorCounter < EndSector; SectorCounter += 8)
{
/* Device voltage range supposed to be [2.7V to 3.6V], the operation will
be done by word */
if (FLASH_EraseSector(SectorCounter, VoltageRange_3) != FLASH_COMPLETE)
{
/* Error occurred while sector erase.
User can add here some code to deal with this error */
while (1)
{
}
}
}
for (m = 0; m < 16; m++) //保存图片到flash
{
unsigned long *q;
Address = FLASH_USER_START_ADDR + m * (320 * 240 * 2 / 16);
if (m < 4)
{
q = (unsigned long *)(0x10000000 + 0x5000 + m * (320 * 240 * 2 / 16));
}
else
{
q = (unsigned long *)(0x20000000 + (m % 12) * (320 * 240 * 2 / 16));
}
while (Address < FLASH_USER_START_ADDR + (m + 1) *(320 * 240 * 2 / 16))
{
if (FLASH_ProgramWord(Address, *q) == FLASH_COMPLETE)
{
Address = Address + 4;
q++;
}
else
{
/* Error occurred while writing data in Flash memory.
User can add here some code to deal with this error */
while (1)
{
}
}
}
}
STM_EVAL_LEDOff(LED2);
LCD_SetDisplayWindow(0, 0, 320, 240);
LCD_WriteRAM_Prepare();
LCD_Clear(Black);
for (m = 0; m < 16; m++) //显示flash中的图片
{
unsigned short *q;
q = (unsigned short *)(FLASH_USER_START_ADDR + m * (320 * 240 * 2 / 16));
LCD_SetDisplayWindow(0, m * (240 / 16), 320, (240 / 16));
LCD_WriteRAM_Prepare();
for (i = 0; i < 320 * 240 / 16; i++)
{
LCD_WriteRAM(*q++);
}
}
/* Lock the Flash to disable the flash control register access (recommended
to protect the FLASH memory against possible unwanted operation) *********/
FLASH_Lock();
}
else if (x >= 1550 && y < 1550)
{
//righttop
STM_EVAL_LEDOff(LED1);
STM_EVAL_LEDOff(LED2);
bShot = 0;
datablock = 0;
DMA_Cmd(DMA2_Stream1, ENABLE);
DCMI_Cmd(ENABLE);
}
else if (x < 1550 && y >= 1550)
{
//righttop
//DMA_Cmd(DMA2_Stream1, ENABLE);
//DCMI_Cmd(ENABLE);
}
else if (x >= 1550 && y >= 1550)
{
//righttop
//DMA_Cmd(DMA2_Stream1, ENABLE);
//DCMI_Cmd(ENABLE);
}
}
}
//Delay(10);
}
}
/**
* @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);
}
}
}
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f4xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f4xx.c file
*/
/* SysTick end of count event each 10ms */
unsigned int line;
enum {
TYPE_UNKNOWN=0,
TYPE_RGB24,
TYPE_RGB16,
TYPE_YUV,
} image_type = TYPE_UNKNOWN;
RCC_GetClocksFreq(&RCC_Clocks);
SysTick_Config(RCC_Clocks.HCLK_Frequency / 100);
init_USART1(1048576);
USART_puts(USART2,"\nLoaded,");
image_type = TYPE_YUV;
frame_done=0;
// LIS302DL_Reset();
/* SET USER Key */
/* Configure EXTI Line0 (connected to PA0 pin) in interrupt mode */
// EXTILine0_Config();
// /* Initialize the LCD */
// STM32f4_Discovery_LCD_Init();
// LCD_Clear(LCD_COLOR_WHITE);
// LCD_SetTextColor(LCD_COLOR_BLUE);
// DCMI_Control_IO_Init();//funtion to configure reset and power pins of the camera **dont need for tw9910
// LCD_DisplayStringLine(LINE(2), " Camera Init..");
/* OV9655 Camera Module configuration */
// ****INIT the TW9910 in the following function
if (DCMI_OV9655Config() == 0x00)//configures pins of DCMI,I2C and DMA and the camera settings, if it returns a positive response
{
//Successful
// int fr=0;
USART_puts(USART2,"In TW9910\n");
// LCD_DisplayStringLine(LINE(2), " ");
// LCD_SetDisplayWindow(0, 0, 320, 240);
// LCD_WriteRAM_Prepare();
//initialise an array here for the Image and ensure it is set up in the DMA configuration
/* Enable DMA transfer */
DMA_Cmd(DMA2_Stream1, ENABLE);
/* Enable DCMI interface */
DCMI_Cmd(ENABLE);
/* Start Image capture */
DCMI_CaptureCmd(ENABLE);
/*init the picture count*/ //useless for tw9910 and our case
//init_picture_count(); // a function to initialise a variable from a counter file in the sdcard to name the new bmp file and file-xxx.bmp
while (1)
{
// int i;
//Delay(50);
// int i;
//for(i=0;i<1000;i++);
if (frame_done) {
// char s[5];
// fr++;
// USART_puts(USART2,"\nNewFrame\n");
// if (capture_Flag == ENABLE) {
DCMI_CaptureCmd(DISABLE);
USART_puts(USART2,"\njpeg2\n");
huffman_start(IMG_HEIGHT & -8, IMG_WIDTH & -8);
huffman_resetdc();
// USART_puts(USART2,"\njpeg\n");
//
// for(i=0;i<FULLIMAGESIZE;i++){
// sprintf(s,",%x",imagearray[i]);
// USART_puts(USART2,s);
// //USART_writebyte(USART2,&imagearray[i]);
//
// }
//
// USART_puts(USART2,"\nDone");
// capture_Flag = DISABLE;
// // Capture_Image_TO_Bmp();
//// LCD_SetDisplayWindow(0, 0, 320, 240);
//// LCD_WriteRAM_Prepare();
// capture_Flag = ENABLE;
// }
// USART_puts(USART2,"\njpeg2\n");
for (line=0; line<NUM_LINES; line++) {
uint8_t* line_buffer=(uint8_t *)&(imagearray[line*(IMG_WIDTH*IMG_HEIGHT*2/NUM_LINES)]);
// encode the line using appropriate encoder
switch (image_type) {
// case TYPE_RGB24: encode_line_rgb24(line_buffer, line); break;
// case TYPE_RGB16: encode_line_rgb16(line_buffer, line); break;
case TYPE_YUV: encode_line_yuv(line_buffer, line); break;
case TYPE_UNKNOWN:
default:break;
// fprintf(stderr, "error: %s, unsupported encoder for input '%s'\n", argv[0], argv[1]);
// exit(1);
}
}
// write .jpeg footer (end-of-image marker)
huffman_stop();
USART_puts(USART2,"\njpegends\n");
DCMI_CaptureCmd(ENABLE);
frame_done = 0;
//if(fr==2)
//while(1);
}
}
} else {
// LCD_SetTextColor(LCD_COLOR_RED);
// LCD_DisplayStringLine(LINE(2), "Camera Init.. fails");
// LCD_DisplayStringLine(LINE(4), "Check the Camera HW ");
// LCD_DisplayStringLine(LINE(5), " and try again ");
/* Go to infinite loop */
while (1);
}
}
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f4xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f4xx.c file
*/
/* SysTick end of count event each 10ms */
#ifndef YUVDEBUG
unsigned int line;
#endif
RCC_GetClocksFreq(&RCC_Clocks);
SysTick_Config(RCC_Clocks.HCLK_Frequency / 100);
init_USART1(1048576);
USART_puts(USART2,"\nLoaded,");
frame_done=0;
/*Camera configuration */
// ****INIT the TW9910 in the following function
if (DCMI_OV9655Config() == 0x00)//configures pins of DCMI,I2C and DMA and the camera settings, if it returns a positive response
{
//Successful
int fr=0;
USART_puts(USART2,"In TW9910\n");
/* Enable DMA transfer */
DMA_Cmd(DMA2_Stream1, ENABLE);
/* Enable DCMI interface */
DCMI_Cmd(ENABLE);
/* Start Image capture */
DCMI_CaptureCmd(ENABLE);
while (1)
{
// int i;
// Delay(50);
if (frame_done) {
char s[5];
int i;
fr++;
DCMI_CaptureCmd(DISABLE);
#ifndef YUVDEBUG
USART_puts(USART2,"\njpeg2\n");
huffman_start(IMG_HEIGHT & -8, IMG_WIDTH & -8);
huffman_resetdc();
#endif
#ifdef YUVDEBUG
USART_puts(USART2,"\nNewFrame\n");
for(i=0;i<FULLIMAGESIZE*2;i++){
sprintf(s,",%x",imagearray[i]);
USART_puts(USART2,s);
}
#endif
#ifndef YUVDEBUG
for (line=0; line<NUM_LINES; line++) {
uint8_t* line_buffer=(uint8_t *)&(imagearray[line*(IMG_WIDTH*8*2)]);
// encode the line using encoder
encode_line_yuv(line_buffer, line);
}
// write .jpeg footer (end-of-image marker)
huffman_stop();
#endif
// /* print the frame counter */
// sprintf(s,",%d",fr);
// USART_puts(USART2,s);
//USART_puts(USART2,"\njpegends\n");
DCMI_CaptureCmd(ENABLE);
frame_done = 0;
}
}
}
else {// Cant INIT the TW9910
USART_puts(USART2,"Cant Init TW9910");
/* Go to infinite loop */
while (1);
}
}
void DCMI_Interface_Init(void)
{
DCMI_InitTypeDef DCMI_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
/* Enable DCMI clock */
RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_DCMI, ENABLE);
/* DCMI configuration */
//DCMI捕捉模式的设置，默认是连续模式,会看到连续的移动图像
//用户在使用的时候可调整为SnapShot(抓拍)，也就是单帧
DCMI_InitStructure.DCMI_CaptureMode = DCMI_CaptureMode_Continuous;//DCMI_CaptureMode_SnapShot;
DCMI_InitStructure.DCMI_SynchroMode = DCMI_SynchroMode_Hardware;
DCMI_InitStructure.DCMI_PCKPolarity = DCMI_PCKPolarity_Falling;
DCMI_InitStructure.DCMI_VSPolarity = DCMI_VSPolarity_High;
DCMI_InitStructure.DCMI_HSPolarity = DCMI_HSPolarity_High;
DCMI_InitStructure.DCMI_CaptureRate = DCMI_CaptureRate_All_Frame;
DCMI_InitStructure.DCMI_ExtendedDataMode = DCMI_ExtendedDataMode_8b;
/* Configures the DMA2 to transfer Data from DCMI */
/* Enable DMA2 clock */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE);
/* DMA2 Stream1 Configuration */
DMA_DeInit(DMA2_Stream1);
DMA_InitStructure.DMA_Channel = DMA_Channel_1;
DMA_InitStructure.DMA_PeripheralBaseAddr = DCMI_DR_ADDRESS;
DMA_InitStructure.DMA_Memory0BaseAddr = FSMC_LCD_ADDRESS;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
DMA_InitStructure.DMA_BufferSize = 1;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_Full;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
//DCMI中断配置，在使用帧中断或者垂直同步中断的时候打开
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);
NVIC_InitStructure.NVIC_IRQChannel = DCMI_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x01;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x02;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
//使能DCMI中断
DCMI_ITConfig(DCMI_IT_VSYNC, ENABLE);
/* DCMI configuration */
DCMI_Init(&DCMI_InitStructure);
/* DMA2 IRQ channel Configuration */
DMA_Init(DMA2_Stream1, &DMA_InitStructure);
DMA_Cmd(DMA2_Stream1, ENABLE);
DCMI_Cmd(ENABLE);
}
int main() {
SysTick_Config(SystemCoreClock / 1000);
InitLeds();
GPIO_SetBits(GPIOD, GREEN_LED);
Delay(100);
GPIO_ResetBits(GPIOD, GREEN_LED);
GPIO_SetBits(GPIOD, ORANGE_LED);
Delay(100);
GPIO_ResetBits(GPIOD, ORANGE_LED);
GPIO_SetBits(GPIOD, RED_LED);
Delay(100);
GPIO_ResetBits(GPIOD, RED_LED);
GPIO_SetBits(GPIOD, BLUE_LED);
Delay(100);
GPIO_ResetBits(GPIOD, BLUE_LED);
/**
* USART
*/
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA | RCC_AHB1Periph_GPIOB | RCC_AHB1Periph_GPIOC, ENABLE);
GPIO_PinAFConfig(USART2_TX_PORT, USART2_TX_PIN_SOURCE, GPIO_AF_USART2);
GPIO_PinAFConfig(USART2_RX_PORT, USART2_RX_PIN_SOURCE, GPIO_AF_USART2);
/* Configure USART Tx as alternate function */
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Pin = USART2_TX_PIN;
GPIO_Init(USART2_TX_PORT, &GPIO_InitStructure);
/* Configure USART Rx as alternate function */
GPIO_InitStructure.GPIO_Pin = USART2_RX_PIN;
GPIO_Init(USART2_RX_PORT, &GPIO_InitStructure);
USART_InitTypeDef USART_InitStructure;
USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(USART2, &USART_InitStructure);
/* Enable USART */
USART_Cmd(USART2, ENABLE);
Serial_print(USART2, "Hello World! -- Compiled on: ");
Serial_print(USART2, __DATE__);
Serial_print(USART2, " - ");
Serial_println(USART2, __TIME__);
/**
* Interrupts
*/
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_InitStructure.NVIC_IRQChannel = DCMI_IRQn;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_Init(&NVIC_InitStructure);
DCMI_ClearITPendingBit(DCMI_IT_FRAME | DCMI_IT_OVF | DCMI_IT_ERR);
DCMI_ITConfig(DCMI_IT_FRAME | DCMI_IT_OVF | DCMI_IT_ERR, ENABLE);
NVIC_InitStructure.NVIC_IRQChannel = DMA2_Stream1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_Init(&NVIC_InitStructure);
DMA_ClearITPendingBit(DMA2_Stream1, DMA_IT_TCIF1 | DMA_IT_TEIF1);
DMA_ITConfig(DMA2_Stream1, DMA_IT_TC | DMA_IT_FE | DMA_IT_TE | DMA_IT_DME, ENABLE);
Serial_print(USART2, "Interrupts done. \r\n");
/** Camera Reset Pin & Power Down Pin */
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_Speed = GPIO_Low_Speed;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10 | GPIO_Pin_9;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_SetBits(GPIOA, GPIO_Pin_10);
GPIO_ResetBits(GPIOA, GPIO_Pin_9);
/**
* DCMI
*/
OV2640_HW_Init();
Serial_print(USART2, "HW_Init done. \r\n");
/* Print camera Id */
OV2640_IDTypeDef camera_id;
OV2640_ReadID(&camera_id);
Serial_print(USART2, "Camera ID: ");
Serial_print(USART2, camera_id.Manufacturer_ID1, 16);
Serial_print(USART2, " - ");
Serial_print(USART2, camera_id.Manufacturer_ID2, 16);
Serial_print(USART2, " - ");
Serial_print(USART2, camera_id.PIDH, 16);
Serial_print(USART2, " - ");
Serial_print(USART2, camera_id.PIDL, 16);
Serial_println(USART2, "");
OV2640_QQVGAConfig();
Serial_print(USART2, "QQVGAConfig done. \r\n");
// OV2640_BandWConfig(0x18); // BW
OV2640_Init(BMP_QQVGA);
Serial_print(USART2, "Init done. \r\n");
// Memset
int i;
for (i=0; i<160*120; i++) {
Targetbuffer[i] = 0xbeef;
}
DMA_Cmd(DMA2_Stream1, ENABLE);
while ( DMA_GetCmdStatus(DMA2_Stream1) != ENABLE )
;
Serial_print(USART2, "DMA Enable done. \r\n");
DCMI_Cmd(ENABLE);
Serial_print(USART2, "DCMI Enable done. \r\n");
DCMI_CaptureCmd(ENABLE);
Serial_print(USART2, "DCMI Capture start. \r\n");
Serial_print(USART2, "Print: \r\n.\r\n.\r\n");
Serial_print(USART2, "done. \r\n");
Delay(1);
// Clear screen
Serial_print(USART2, 0x1b);
Serial_print(USART2, "[2J");
while (1) {
while (DCMI_GetFlagStatus(DCMI_FLAG_FRAMERI) == RESET)
;
print_CameraData();
// Move cursor to home position.
Serial_print(USART2, 0x1b);
Serial_print(USART2, "[H");
}
}
void Cam_Init()
{
GPIO_InitTypeDef GPIO_InitStructure;
DCMI_InitTypeDef DCMI_InitStructure;
DCMI_CROPInitTypeDef DCMI_CROPInitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_DCMI, ENABLE);//DCMI
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE);//DMA2
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA | RCC_AHB1Periph_GPIOB |
RCC_AHB1Periph_GPIOC | RCC_AHB1Periph_GPIOE, ENABLE);//使能DCMI的GPIO时钟
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD,ENABLE);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource8, GPIO_AF_MCO);//MCO1:PA8
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
RCC_MCO1Config(RCC_MCO1Source_HSE, RCC_MCO1Div_1);//25MHz
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;//PE5:PWRDOWN
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP ;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_ResetBits(GPIOA, GPIO_Pin_7);//power on
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 ;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
// GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP ;
GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_SetBits(GPIOD, GPIO_Pin_7);//reset
delay_ms(10);
OV7670_RST(0); //复位OV7670
delay_ms(10);
OV7670_RST(1); //结束复位
GPIO_PinAFConfig(GPIOA, GPIO_PinSource4, GPIO_AF_DCMI);//DCMI_HSYNC
GPIO_PinAFConfig(GPIOA, GPIO_PinSource6, GPIO_AF_DCMI);//DCMI_PIXCLK
GPIO_PinAFConfig(GPIOB, GPIO_PinSource6, GPIO_AF_DCMI);//DCMI_D5
GPIO_PinAFConfig(GPIOB, GPIO_PinSource7, GPIO_AF_DCMI);//DCMI_VSYNC
GPIO_PinAFConfig(GPIOE, GPIO_PinSource5, GPIO_AF_DCMI);//DCMI_D6
GPIO_PinAFConfig(GPIOE, GPIO_PinSource6, GPIO_AF_DCMI);//DCMI_D7
GPIO_PinAFConfig(GPIOC, GPIO_PinSource6, GPIO_AF_DCMI);//DCMI_D0
GPIO_PinAFConfig(GPIOC, GPIO_PinSource7, GPIO_AF_DCMI);//DCMI_D1
GPIO_PinAFConfig(GPIOE, GPIO_PinSource0, GPIO_AF_DCMI);//DCMI_D2
GPIO_PinAFConfig(GPIOE, GPIO_PinSource1, GPIO_AF_DCMI);//DCMI_D3
GPIO_PinAFConfig(GPIOE, GPIO_PinSource4, GPIO_AF_DCMI);//DCMI_D4
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP ;
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6;
GPIO_Init(GPIOE, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 ;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_6;
GPIO_Init(GPIOA, &GPIO_InitStructure);
DCMI_CROPInitStructure.DCMI_CaptureCount=319;
DCMI_CROPInitStructure.DCMI_HorizontalOffsetCount=1;
DCMI_CROPInitStructure.DCMI_VerticalLineCount=119;
DCMI_CROPInitStructure.DCMI_VerticalStartLine=1;
DCMI_CROPConfig(&DCMI_CROPInitStructure);
DCMI_CROPCmd(ENABLE);
DCMI_InitStructure.DCMI_CaptureMode =DCMI_CaptureMode_Continuous;
DCMI_InitStructure.DCMI_SynchroMode = DCMI_SynchroMode_Hardware;
DCMI_InitStructure.DCMI_PCKPolarity = DCMI_PCKPolarity_Falling;
DCMI_InitStructure.DCMI_VSPolarity = DCMI_VSPolarity_High;
DCMI_InitStructure.DCMI_HSPolarity = DCMI_HSPolarity_Low;
DCMI_InitStructure.DCMI_CaptureRate = DCMI_CaptureRate_All_Frame;
DCMI_InitStructure.DCMI_ExtendedDataMode = DCMI_ExtendedDataMode_8b;
DCMI_Init(&DCMI_InitStructure);
DCMI_ITConfig(DCMI_IT_FRAME,ENABLE);//开启帧中断
DCMI_Cmd(ENABLE); //DCMI使能
DCMI_DMA_Init((u32)&jpeg_buf,jpeg_buf_size,DMA_MemoryDataSize_Word,DMA_MemoryInc_Enable);
NVIC_InitStructure.NVIC_IRQChannel = DCMI_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=NVIC_DCMI_P;//抢占优先级1
NVIC_InitStructure.NVIC_IRQChannelSubPriority =NVIC_DCMI_S; //子优先级2
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道使能
NVIC_Init(&NVIC_InitStructure); //根据指定的参数初始化VIC寄存器、
}
