/**
* @brief Read the OV9655 Camera identity.
* @param DeviceAddr: Device address on communication Bus.
* @retval the OV9655 ID
*/
uint16_t ov9655_ReadID(uint16_t DeviceAddr)
{
/* Initialize I2C */
CAMERA_IO_Init();
/* Get the camera ID */
return (CAMERA_IO_Read(DeviceAddr, OV9655_SENSOR_PIDH));
}
/**
* @brief Initializes the OV9655 CAMERA component.
* @param DeviceAddr: Device address on communication Bus.
* @param resolution: Camera resolution
* @retval None
*/
void ov9655_Init(uint16_t DeviceAddr, uint32_t resolution)
{
uint32_t index;
/* Initialize I2C */
CAMERA_IO_Init();
/* Prepare the camera to be configured by resetting all its registers */
CAMERA_IO_Write(DeviceAddr, OV9655_SENSOR_COM7, 0x80);
CAMERA_Delay(200);
/* Initialize OV9655 */
switch (resolution)
{
case CAMERA_R160x120:
{
for(index=0; index<(sizeof(OV9655_QQVGA)/2); index++)
{
CAMERA_IO_Write(DeviceAddr, OV9655_QQVGA[index][0], OV9655_QQVGA[index][1]);
CAMERA_Delay(2);
}
break;
}
case CAMERA_R320x240:
{
for(index=0; index<(sizeof(OV9655_QVGA)/2); index++)
{
CAMERA_IO_Write(DeviceAddr, OV9655_QVGA[index][0], OV9655_QVGA[index][1]);
CAMERA_Delay(2);
}
break;
}
case CAMERA_R480x272:
{
/* Not supported resolution */
break;
}
case CAMERA_R640x480:
{
for(index=0; index<(sizeof(OV9655_VGA)/2); index++)
{
CAMERA_IO_Write(DeviceAddr, OV9655_VGA[index][0], OV9655_VGA[index][1]);
CAMERA_Delay(2);
}
break;
}
default:
{
break;
}
}
}
/**
* @brief Read the OV2640 Camera identity.
* @param DeviceAddr: Device address on communication Bus.
* @retval the OV2640 ID
*/
uint16_t ov2640_ReadID(uint16_t DeviceAddr)
{
if(Is_I2C_Initialized == 0)
{
/* Initialize I2C */
CAMERA_IO_Init();
Is_I2C_Initialized = 1;
}
/* Prepare the sensor to read the Camera ID */
CAMERA_IO_Write(DeviceAddr, OV2640_DSP_RA_DLMT, 0x01);
/* Get the camera ID */
return (CAMERA_IO_Read(DeviceAddr, OV2640_SENSOR_PIDH));
}
/**
* @brief Initializes the OV2640 CAMERA component.
* @param DeviceAddr: Device address on communication Bus.
* @param resolution: the Camera resolution
* @retval None
*/
void ov2640_Init(uint16_t DeviceAddr, uint32_t resolution)
{
uint32_t index;
if(Is_I2C_Initialized == 0)
{
Is_I2C_Initialized = 1;
/* Initialize I2C */
CAMERA_IO_Init();
}
/* Prepare the camera to be configured */
CAMERA_IO_Write(DeviceAddr, OV2640_DSP_RA_DLMT, 0x01);
CAMERA_IO_Write(DeviceAddr, OV2640_SENSOR_COM7, 0x80);
CAMERA_Delay(200);
/* Initialize OV2640 */
switch (resolution)
{
case CAMERA_R160x120:
{
for(index=0; index<(sizeof(OV2640_QQVGA)/2); index++)
{
CAMERA_IO_Write(DeviceAddr, OV2640_QQVGA[index][0], OV2640_QQVGA[index][1]);
CAMERA_Delay(1);
}
break;
}
case CAMERA_R320x240:
{
for(index=0; index<(sizeof(OV2640_QVGA)/2); index++)
{
CAMERA_IO_Write(DeviceAddr, OV2640_QVGA[index][0], OV2640_QVGA[index][1]);
CAMERA_Delay(1);
}
break;
}
case CAMERA_R480x272:
{
for(index=0; index<(sizeof(OV2640_480x272)/2); index++)
{
CAMERA_IO_Write(DeviceAddr, OV2640_480x272[index][0], OV2640_480x272[index][1]);
CAMERA_Delay(2);
}
break;
}
case CAMERA_R640x480:
{
for(index=0; index<(sizeof(OV2640_VGA)/2); index++)
{
CAMERA_IO_Write(DeviceAddr, OV2640_VGA[index][0], OV2640_VGA[index][1]);
CAMERA_Delay(2);
}
break;
}
default:
{
break;
}
}
}
