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Camera.c
253 lines (216 loc) · 8.54 KB
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Camera.c
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#include "Camera.h"
#include "OV7670Cam.h"
#include "Communication.h"
/*
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 MCO1_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_ClockSecuritySystemCmd(ENABLE);
/* Enable GPIOs clocks */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource8, GPIO_AF_MCO);
/* Configure MCO (PA8) */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
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_PLLCLK, RCC_MCO1Div_3);
}
void DCMI_0V7670_PWDN_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable GPIOs clocks */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/*PWDN*/
GPIO_ResetBits(GPIOA, GPIO_Pin_2);
Delayms(10);
GPIO_SetBits(GPIOA, GPIO_Pin_2);
}
/**
* @brief Set the VGA size(640*320).
* @param None
* @retval None
*/
uint8_t DCMI_OV7670_Init(void)
{
uint8_t i;
// SCCB_GPIO_Config();
InitDCMI();
MCO1_Init();
//DCMI_0V7670_RST_PWDN_Init();
Delayms(0xfff);
// if(DCMI_SingleRandomWrite(OV7670_COM7, SCCB_REG_RESET)!=0)
if(MasterI2CWrite(I2C2, OV7670_ADD, 0, 0, OV7670_COM7, 1, (char *)SCCB_REG_RESET)==0)
return 0xff;
Delayms(0xfff);
for(i=0;i<CHANGE_REG_NUM;i++)
{
// if(DCMI_SingleRandomWrite(change_reg[i][0],change_reg[i][1])!=0)
if(MasterI2CWrite(I2C2, OV7670_ADD, 0, 0, change_reg[i][0], 1, &change_reg[i][1])==0)
{
return 0xff;
}
}
//OV7670_config_window(272,16,320,240);// set 240*320
Delayms(0xfff);
return 0;//Init ok
}
/**
* @brief Read the OV7670 Manufacturer identifier.
* @param OV7670ID: pointer to the OV7670 Manufacturer identifier.
* @retval None
*/
uint8_t DCMI_OV7670_ReadID(OV7670_IDTypeDef* OV7670ID)
{
uint8_t temp;
// if(DCMI_SingleRandomRead(OV7670_MIDH,&temp)!=0)
if(MasterI2CRead(I2C2, OV7670_ADD, 0, 0, OV7670_MIDH, 1, &temp)==0)
return 0xff;
OV7670ID->Manufacturer_ID1 = temp;
// if(DCMI_SingleRandomRead(OV7670_MIDL,&temp)!=0)
if(MasterI2CRead(I2C2, OV7670_ADD, 0, 0, OV7670_MIDL, 1, &temp)==0)
return 0xff;
OV7670ID->Manufacturer_ID2 = temp;
// if(DCMI_SingleRandomRead(OV7670_VER,&temp)!=0)
if(MasterI2CRead(I2C2, OV7670_ADD, 0, 0, OV7670_VER, 1, &temp)==0)
return 0xff;
OV7670ID->Version = temp;
// if(DCMI_SingleRandomRead(OV7670_PID,&temp)!=0)
if(MasterI2CRead(I2C2, OV7670_ADD, 0, 0, OV7670_PID, 1, &temp)==0)
return 0xff;
OV7670ID->PID = temp;
return 0;
}
/**
* @brief config_OV7660_window
* @param //(140,16,640,480) is good for VGA
* //(272,16,320,240) is good for QVGA
* @retval None
*/
void OV7670_config_window(uint16_t startx, uint16_t starty, uint16_t width, uint16_t height)
{
uint16_t endx=(startx+width);
uint16_t endy=(starty+height*2);// must be "height*2"
uint8_t temp_reg1, temp_reg2;
uint8_t state,temp;
state = state; //Prevent report warning
// state = DCMI_SingleRandomRead(0x03, &temp_reg1 );
state = MasterI2CRead(I2C2, OV7670_ADD, 0, 0, 0x03, 1, &temp_reg1);
temp_reg1 &= 0xC0;
// state = DCMI_SingleRandomRead(0x32, &temp_reg2 );
state = MasterI2CRead(I2C2, OV7670_ADD, 0, 0, 0x32, 1, &temp_reg2);
temp_reg2 &= 0xC0;
// Horizontal
temp = temp_reg2|((endx&0x7)<<3)|(startx&0x7);
// state = DCMI_SingleRandomWrite(0x32, temp );
state = MasterI2CWrite(I2C2, OV7670_ADD, 0, 0, 0x32, 1, &temp);
temp = (startx&0x7F8)>>3;
// state = DCMI_SingleRandomWrite(0x17, temp );
state = MasterI2CWrite(I2C2, OV7670_ADD, 0, 0, 0x17, 1, &temp);
temp = (endx&0x7F8)>>3;
// state = DCMI_SingleRandomWrite(0x18, temp );
state = MasterI2CWrite(I2C2, OV7670_ADD, 0, 0, 0x18, 1, &temp);
// Vertical
temp = temp_reg1|((endy&0x7)<<3)|(starty&0x7);
// state = DCMI_SingleRandomWrite(0x03, temp );
state = MasterI2CWrite(I2C2, OV7670_ADD, 0, 0, 0x03, 1, &temp);
temp = (starty&0x7F8)>>3;
// state = DCMI_SingleRandomWrite(0x19, temp );
state = MasterI2CWrite(I2C2, OV7670_ADD, 0, 0, 0x19, 1, &temp);
temp = (endy&0x7F8)>>3;
// state = DCMI_SingleRandomWrite(0x1A, temp );
state = MasterI2CWrite(I2C2, OV7670_ADD, 0, 0, 0x1A, 1, &temp);
}