int main( void )
{
u32 Point = 0;
u16 OV7725_ID = 0;
SystemInit();
GPIO_Config();
Delay_1ms(1);
SSD1963_Config();
Delay_1ms(50);
SSD1963_Init();
Delay_1ms(20);
TFT_Clear(WHITE);
// SCCB Init
SCCB_Init();
Delay_1ms(2);
// Read ID & Check
OV7725_ID = OV_ReadID();
while(OV7725_ID != 0x7721) {
LED_R = ~LED_R;
Delay_100ms(1);
}
// OV7725 Init
while(1==OV_Init());
Cam_Start();
while(1) {
LED_G = ~LED_G;
Delay_100ms(1);
}
}
void Init_OV7620_DMA()
{
MCF_GPIO_PTEPAR = 0;
MCF_GPIO_DDRTE = 0;
SCCB_Init();
SCCB_Bytewrite(0x42,0x14,0x24);
SCCB_Bytewrite(0x42,0x11,0x04);
MCF_DMA_DSR(0) |= MCF_DMA_DSR_DONE;//清空传输完成标志位
MCF_SCM_MPR = MCF_SCM_MPR_MPR(0x05);
MCF_SCM_DMAREQC = MCF_SCM_DMAREQC_DMAC0(0x04);//设定DMA0为DTIM0触发
MCF_DMA_SAR(0)=(uint32)0x40100030;//源地址为PTE
MCF_DMA_DAR(0)=(uint32)Image_Data[0];//目的地址为图像数组
MCF_DMA_BCR(0)=320;//传输长度为每行的长度，这里是320个像素
MCF_DMA_DCR(0)=MCF_DMA_DCR_INT//开启DMA中断
|MCF_DMA_DCR_SSIZE(1)
|MCF_DMA_DCR_DSIZE(1)//每次传输源地址和目的地址都为一字节
|MCF_DMA_DCR_DINC//每次传输之后源地址保持不变，目的地址加1
|MCF_DMA_DCR_D_REQ//每次传输结束之后关闭DMA外部请求
//|MCF_DMA_DCR_EEXT
|MCF_DMA_DCR_CS;//一次DMA请求传输一次
MCF_GPIO_PTCPAR|=MCF_GPIO_PTCPAR_DTIN0_DTIN0;//设定DTIN0端口的功能
MCF_DTIM0_DTMR=0;//重置STMR寄存器
MCF_DTIM0_DTMR=MCF_DTIM_DTMR_CE_RISE//捕捉上升沿
|MCF_DTIM_DTMR_CLK_DTIN;//时钟输入为DTIN
MCF_DTIM0_DTER|=MCF_DTIM_DTER_CAP;//边沿捕捉触发
MCF_DTIM0_DTXMR|=MCF_DTIM_DTXMR_DMAEN;//DMA请求使能
MCF_DTIM_DTMR(0) |= MCF_DTIM_DTMR_RST;//开启DTIM
MCF_INTC0_IMRL&=~MCF_INTC_IMRL_MASKALL;
MCF_INTC0_IMRL&=~MCF_INTC_IMRL_INT_MASK9;
MCF_INTC0_ICR09=MCF_INTC_ICR_IP(6)+MCF_INTC_ICR_IL(6);
EPORT_init();
}
int main(void)
{
HAL_Init();
BSP_LED_Init(LED3);
BSP_LED_Init(LED4);
Clocks_Config();
GPIOInit();
SCCB_Init();
DcmiDma_Init();
SpiDma_Init();
while(1);
}
u8 OV7670_Init(void)
{
u8 i,id;
Cam_Init();
SCCB_Init();
OV_Reset();
delay_ms(5);
id=OV_ReadID();
for(i=0;i<sizeof(ov7670_init_reg_tbl)/sizeof(ov7670_init_reg_tbl[0]);i++)
{
OV_WriteReg(ov7670_init_reg_tbl[i][0],ov7670_init_reg_tbl[i][1]);
}
OV7670_config_window(184+80*2,10+60*2,161,121);
return 0;
}
int main(void)
{
DelayInit();
GPIO_QuickInit(HW_GPIOE, 6, kGPIO_Mode_OPP);
UART_QuickInit(UART0_RX_PD06_TX_PD07, 115200);
printf("OV7620 test\r\n");
ili9320_init();
SRAM_Init();
/* 摄像头速度非常快 把FLexbus 总线速度调到最高 */
SIM->CLKDIV1 &= ~SIM_CLKDIV1_OUTDIV3_MASK;
SIM->CLKDIV1 |= SIM_CLKDIV1_OUTDIV3(0);
OV7620_Init();
SCCB_Init();
while(1)
{
GPIO_ToggleBit(HW_GPIOE, 6);
DelayMs(500);
}
}
int sensor_init()
{
/* Do a power cycle */
DCMI_PWDN_HIGH();
systick_sleep(10);
DCMI_PWDN_LOW();
systick_sleep(100);
/* Initialize the SCCB interface */
SCCB_Init();
systick_sleep(10);
/* Configure the external clock (XCLK) */
extclk_config(XCLK_FREQ);
systick_sleep(10);
/* Reset the sesnor state */
memset(&sensor, 0, sizeof(struct sensor_dev));
/* Some sensors have different reset polarities, and we can't know which sensor
is connected before initializing SCCB and reading the PID register, which in
turn requires pulling the sensor out of the reset state. So we try to read a
register with both polarities to determine line state. */
sensor.reset_pol = ACTIVE_HIGH;
DCMI_RESET_HIGH();
systick_sleep(10);
DCMI_RESET_LOW();
systick_sleep(10);
/* Check if we can read PID */
if (SCCB_Read(REG_PID) == 255) {
/* Sensor is held in reset, so reset is active high */
sensor.reset_pol = ACTIVE_LOW;
DCMI_RESET_LOW();
systick_sleep(10);
DCMI_RESET_HIGH();
systick_sleep(10);
}
/* Read the sensor information */
sensor.id.MIDH = SCCB_Read(REG_MIDH);
sensor.id.MIDL = SCCB_Read(REG_MIDL);
sensor.id.PID = SCCB_Read(REG_PID);
sensor.id.VER = SCCB_Read(REG_VER);
/* Call the sensor-specific init function */
switch (sensor.id.PID) {
case OV9650_PID:
ov9650_init(&sensor);
break;
case OV2640_PID:
ov2640_init(&sensor);
break;
default:
/* sensor not supported */
return -1;
}
/* Configure the DCMI DMA Stream */
if (dma_config() != 0) {
return -1;
}
/* Configure the DCMI interface. This should be called
after ovxxx_init to set VSYNC/HSYNC/PCLK polarities */
if (dcmi_config() != 0){
return -1;
}
/* init/re-init mutex */
mutex_init(&fb->lock);
return 0;
}
void initCamera(){
uint32_t i;
printf("OV7725 test\r\n");
//检测摄像头
if(SCCB_Init(I2C0_SCL_PB00_SDA_PB01))
{
printf("no ov7725device found!\r\n");
while(1);
}
printf("OV7620 setup complete\r\n");
//每行数据指针
for(i=0; i<OV7620_H+1; i++)
{
gpHREF[i] = (uint8_t*)&gCCD_RAM[i*OV7620_W/8];
}
DMA_InitTypeDef DMA_InitStruct1 = {0};
/* 场中断 行中断 像素中断 */
GPIO_QuickInit(BOARD_OV7620_PCLK_PORT, BOARD_OV7620_PCLK_PIN, kGPIO_Mode_IPD);
GPIO_QuickInit(BOARD_OV7620_VSYNC_PORT, BOARD_OV7620_VSYNC_PIN, kGPIO_Mode_IPD);
GPIO_QuickInit(BOARD_OV7620_HREF_PORT, BOARD_OV7620_HREF_PIN, kGPIO_Mode_IPD);
/* install callback */
GPIO_CallbackInstall(BOARD_OV7620_VSYNC_PORT, OV_ISR);
GPIO_ITDMAConfig(BOARD_OV7620_HREF_PORT, BOARD_OV7620_HREF_PIN, kGPIO_IT_FallingEdge, true);
GPIO_ITDMAConfig(BOARD_OV7620_VSYNC_PORT, BOARD_OV7620_VSYNC_PIN, kGPIO_IT_FallingEdge, true);
GPIO_ITDMAConfig(BOARD_OV7620_PCLK_PORT, BOARD_OV7620_PCLK_PIN, kGPIO_DMA_RisingEdge, true);
/* 初始化数据端口 */
for(i=0;i<8;i++)
{
GPIO_QuickInit(HW_GPIOE, BOARD_OV7620_DATA_OFFSET+i, kGPIO_Mode_IFT);
}
//DMA配置
DMA_InitStruct1.chl = HW_DMA_CH2;
DMA_InitStruct1.chlTriggerSource = PORTE_DMAREQ;
DMA_InitStruct1.triggerSourceMode = kDMA_TriggerSource_Normal;
DMA_InitStruct1.minorLoopByteCnt = 1;
DMA_InitStruct1.majorLoopCnt = ((OV7620_W/8) +1);
DMA_InitStruct1.sAddr = (uint32_t)&PTE->PDIR + BOARD_OV7620_DATA_OFFSET/8;
DMA_InitStruct1.sLastAddrAdj = 0;
DMA_InitStruct1.sAddrOffset = 0;
DMA_InitStruct1.sDataWidth = kDMA_DataWidthBit_8;
DMA_InitStruct1.sMod = kDMA_ModuloDisable;
DMA_InitStruct1.dAddr = (uint32_t)gpHREF[0];
DMA_InitStruct1.dLastAddrAdj = 0;
DMA_InitStruct1.dAddrOffset = 1;
DMA_InitStruct1.dDataWidth = kDMA_DataWidthBit_8;
DMA_InitStruct1.dMod = kDMA_ModuloDisable;
/* initialize DMA moudle */
DMA_Init(&DMA_InitStruct1);
}
int sensor_init()
{
/* Do a power cycle */
DCMI_PWDN_HIGH();
systick_sleep(10);
DCMI_PWDN_LOW();
systick_sleep(100);
/* Initialize the SCCB interface */
SCCB_Init();
systick_sleep(10);
/* Configure the sensor external clock (XCLK) to XCLK_FREQ (13MHz).
Note: The sensor's internal PLL (when CLKRC=0x80) doubles the XCLK_FREQ
(XCLK=XCLK_FREQ*2), and the unscaled PIXCLK output is XCLK_FREQ*4 */
extclk_config(XCLK_FREQ);
/* Uncomment this to pass through the MCO1 clock (HSI=16MHz) this results in a
64MHz PIXCLK output from the sensor.
Note: The maximum pixel clock input on the STM32F4xx is 54MHz,
the STM32F7 can probably handle higher input pixel clock.
*/
//(void) extclk_config;
//HAL_RCC_MCOConfig(RCC_MCO1, RCC_MCO1SOURCE_HSI, RCC_MCODIV_1);
/* Reset the sesnor state */
memset(&sensor, 0, sizeof(struct sensor_dev));
/* Some sensors have different reset polarities, and we can't know which sensor
is connected before initializing SCCB and reading the PID register, which in
turn requires pulling the sensor out of the reset state. So we try to read a
register with both polarities to determine line state. */
sensor.reset_pol = ACTIVE_HIGH;
DCMI_RESET_HIGH();
systick_sleep(10);
DCMI_RESET_LOW();
systick_sleep(10);
/* Check if we can read PID */
if (SCCB_Read(REG_PID) == 255) {
/* Sensor is held in reset, so reset is active high */
sensor.reset_pol = ACTIVE_LOW;
DCMI_RESET_LOW();
systick_sleep(10);
DCMI_RESET_HIGH();
systick_sleep(10);
}
/* Read the sensor information */
sensor.id.MIDH = SCCB_Read(REG_MIDH);
sensor.id.MIDL = SCCB_Read(REG_MIDL);
sensor.id.PID = SCCB_Read(REG_PID);
sensor.id.VER = SCCB_Read(REG_VER);
/* Call the sensor-specific init function */
switch (sensor.id.PID) {
case OV9650_PID:
ov9650_init(&sensor);
break;
case OV2640_PID:
ov2640_init(&sensor);
break;
default:
/* sensor not supported */
return -1;
}
/* Configure the DCMI DMA Stream */
if (dma_config() != 0) {
return -2;
}
/* Configure the DCMI interface. This should be called
after ovxxx_init to set VSYNC/HSYNC/PCLK polarities */
if (dcmi_config(DCMI_JPEG_DISABLE) != 0){
return -3;
}
/* init/re-init mutex */
mutex_init(&fb->lock);
// blocks usbdbg until the sensor is configured
fb->ready=0;
return 0;
}
