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);
}
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);
}
/**
* 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;
}
void Dcmi::DisableDCMI(){
DCMI_CaptureCmd(DISABLE);
DCMI_Cmd(DISABLE);
DMA_Cmd(DMA2_Stream1, DISABLE);
DCMI_CROPCmd(DISABLE);
DCMI_ITConfig(DCMI_IT_FRAME, DISABLE);
}
/**
* @brief Initialize/Enable DCMI Interrupt
*/
void dcmi_it_init()
{
NVIC_InitTypeDef NVIC_InitStructure;
/* Enable the DCMI global Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = DCMI_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 5;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
DCMI_ITConfig(DCMI_IT_FRAME,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;
}
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");
}
}
/**
* @brief Configures the DCMI/DMA to capture image from the OV9655 camera.
* @param ImageFormat: Image format BMP or JPEG
* @param BMPImageSize: BMP Image size
* @retval None
*/
void OV9655_Init(ImageFormat_TypeDef ImageFormat)
{
DCMI_InitTypeDef DCMI_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
/*** Configures the DCMI to interface with the OV9655 camera module ***/
/* Enable DCMI clock */
RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_DCMI, ENABLE);
/* DCMI configuration */
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_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;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
NVIC_InitStructure.NVIC_IRQChannel = DCMI_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
switch(ImageFormat)
{
case BMP_QQVGA:
{
/* DCMI configuration */
DCMI_Init(&DCMI_InitStructure);
/* DMA2 IRQ channel Configuration */
DMA_Init(DMA2_Stream1, &DMA_InitStructure);
break;
}
case BMP_QVGA:
{
/* DCMI configuration */
DCMI_Init(&DCMI_InitStructure);
/* DMA2 IRQ channel Configuration */
DMA_Init(DMA2_Stream1, &DMA_InitStructure);
break;
}
default:
{
/* DCMI configuration */
DCMI_Init(&DCMI_InitStructure);
/* DMA2 IRQ channel Configuration */
DMA_Init(DMA2_Stream1, &DMA_InitStructure);
break;
}
}
DCMI_ITConfig(DCMI_IT_FRAME, ENABLE);
DCMI_ITConfig(DCMI_IT_OVF, ENABLE);
DCMI_ITConfig(DCMI_IT_ERR, ENABLE);
DCMI_ITConfig(DCMI_IT_VSYNC, ENABLE);
}
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);
}
/*
D0 -- PC6
D1 -- PA10
D2 -- PC8
D3 -- PC9
D4 -- PE4
D5 -- PB6
D6 -- PE5
D7 -- PE6
PCK - PA6
HS -- PA4
VS -- PB7
*/
void InitDCMI(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
DCMI_InitTypeDef DCMI_InitStruct;
DMA_InitTypeDef DMA_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_DCMI, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA | RCC_AHB1Periph_GPIOB | RCC_AHB1Periph_GPIOC | RCC_AHB1Periph_GPIOE, ENABLE);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource4, GPIO_AF_DCMI); //HSYNC
GPIO_PinAFConfig(GPIOA, GPIO_PinSource6, GPIO_AF_DCMI); //PCLK
GPIO_PinAFConfig(GPIOB, GPIO_PinSource7, GPIO_AF_DCMI); //VSYNC
//RED
GPIO_PinAFConfig(GPIOC, GPIO_PinSource6, GPIO_AF_DCMI);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource10, GPIO_AF_DCMI);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource8, GPIO_AF_DCMI);
//Blue
GPIO_PinAFConfig(GPIOC, GPIO_PinSource9, GPIO_AF_DCMI);
GPIO_PinAFConfig(GPIOE, GPIO_PinSource4, GPIO_AF_DCMI);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource6, GPIO_AF_DCMI);
GPIO_PinAFConfig(GPIOE, GPIO_PinSource5, GPIO_AF_DCMI);
GPIO_PinAFConfig(GPIOE, GPIO_PinSource6, GPIO_AF_DCMI);
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_6 | GPIO_Pin_10;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStruct.GPIO_OType = GPIO_OType_OD;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_8 | GPIO_Pin_9;
GPIO_Init(GPIOC, &GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6;
GPIO_Init(GPIOE, &GPIO_InitStruct);
DCMI_InitStruct.DCMI_CaptureMode = DCMI_CaptureMode_Continuous;
DCMI_InitStruct.DCMI_SynchroMode = DCMI_SynchroMode_Hardware;
DCMI_InitStruct.DCMI_PCKPolarity = DCMI_PCKPolarity_Falling;
DCMI_InitStruct.DCMI_VSPolarity = DCMI_VSPolarity_High;
DCMI_InitStruct.DCMI_HSPolarity = DCMI_HSPolarity_High;
DCMI_InitStruct.DCMI_CaptureRate = DCMI_CaptureRate_All_Frame;
DCMI_InitStruct.DCMI_ExtendedDataMode = DCMI_ExtendedDataMode_8b;
DCMI_Init(&DCMI_InitStruct);
DCMI_ITConfig(DCMI_IT_VSYNC, ENABLE);
DCMI_ITConfig(DCMI_IT_LINE, ENABLE);
DCMI_ITConfig(DCMI_IT_FRAME, ENABLE);
DCMI_ITConfig(DCMI_IT_ERR, ENABLE);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
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);
/* Configures the DMA2 to transfer Data from DCMI to the LCD ****************/
/* 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 = 0xfffe;
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;
DMA_Init(DMA2_Stream1, &DMA_InitStructure);
}
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、
}
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);
}
void Cam_DCMI_Config(void)
{
/*Vision
HREF PA4
PCLK PA6
VSYN PB7
D0 PC6
D1 PC7
D2 PC8
D3 PC9
D4 PC11c
D5 PB6
D6 PB8
D7 PB9
*/
/*Vision*/
DCMI_InitTypeDef DCMI_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
DCMI_DeInit();
/* Enable DCMI GPIOs clocks */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA | RCC_AHB1Periph_GPIOB | RCC_AHB1Periph_GPIOC |
RCC_AHB1Periph_GPIOD | RCC_AHB1Periph_GPIOE, ENABLE);
/* Enable DCMI clock */
RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_DCMI, ENABLE);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource4, GPIO_AF_DCMI); //HSYNC
GPIO_PinAFConfig(GPIOA, GPIO_PinSource6, GPIO_AF_DCMI); //PCLK
GPIO_PinAFConfig(GPIOB, GPIO_PinSource7, GPIO_AF_DCMI); //VSYNC
GPIO_PinAFConfig(GPIOC, GPIO_PinSource6, GPIO_AF_DCMI); //DCMI0
GPIO_PinAFConfig(GPIOC, GPIO_PinSource7, GPIO_AF_DCMI); //DCMI1
GPIO_PinAFConfig(GPIOC, GPIO_PinSource8, GPIO_AF_DCMI); //DCMI2
GPIO_PinAFConfig(GPIOC, GPIO_PinSource9, GPIO_AF_DCMI); //DCMI3
GPIO_PinAFConfig(GPIOC, GPIO_PinSource11, GPIO_AF_DCMI);//DCMI4
GPIO_PinAFConfig(GPIOB, GPIO_PinSource6, GPIO_AF_DCMI); //DCMI5
GPIO_PinAFConfig(GPIOB, GPIO_PinSource8, GPIO_AF_DCMI); //DCMI6
GPIO_PinAFConfig(GPIOB, GPIO_PinSource9, GPIO_AF_DCMI); //DCMI7
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_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_11; //D0 - D4
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7| GPIO_Pin_8 | GPIO_Pin_9; //D5 - D7, VSYNC
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4; //HSYNC
GPIO_Init(GPIOA, &GPIO_InitStructure);
// PCLK(PA6)
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* DCMI configuration *******************************************************/
DCMI_InitStructure.DCMI_CaptureMode = DCMI_CaptureMode_SnapShot;
DCMI_InitStructure.DCMI_SynchroMode = DCMI_SynchroMode_Hardware;
DCMI_InitStructure.DCMI_PCKPolarity = DCMI_PCKPolarity_Rising;
DCMI_InitStructure.DCMI_VSPolarity = DCMI_VSPolarity_Low; //DCMI_VSPolarity_High
DCMI_InitStructure.DCMI_HSPolarity = DCMI_HSPolarity_Low; //DCMI_HSPolarity_High
DCMI_InitStructure.DCMI_CaptureRate = DCMI_CaptureRate_All_Frame;//DCMI_CaptureRate_All_Frame
DCMI_InitStructure.DCMI_ExtendedDataMode = DCMI_ExtendedDataMode_8b; //?
DCMI_Init(&DCMI_InitStructure);
DCMI_JPEGCmd(ENABLE);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
NVIC_InitStructure.NVIC_IRQChannel = DCMI_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
DCMI_ITConfig(DCMI_IT_FRAME, ENABLE);
}