/**
* @brief Configures the mt9v034 camera with two context (binning 4 and binning 2).
*/
void mt9v034_context_configuration(void)
{
/* Chip Control
*
* bits | 15 | ... | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
* -------------------------------------------------------------------
* current values | 0 | ... | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
*
* (0:2) Scan Mode (Progressive scan)
* (3:4) Sensor Operation Mode (Master mode)
* (5) Stereoscopy Mode (Disable)
* (6) Stereoscopic Master/Slave mode (not used)
* (7) Parallel Output Enable (Enable)
* (8) Simultaneous/Sequential Mode (Simultaneous mode)
* (9) Reserved
*
* (15)Context A (0) / Context B (1)
*
*/
uint16_t new_control;
if (global_data.param[PARAM_CALIBRATION_ON])
new_control = 0x8188; // Context B
else
new_control = 0x0188; // Context A
/* image dimentions */
uint16_t new_width_context_a = global_data.param[PARAM_IMAGE_WIDTH] * 4; // windowing off, row + col bin reduce size
uint16_t new_height_context_a = global_data.param[PARAM_IMAGE_HEIGHT] * 4;
uint16_t new_width_context_b = FULL_IMAGE_ROW_SIZE * 4; // windowing off, row + col bin reduce size
uint16_t new_height_context_b = FULL_IMAGE_COLUMN_SIZE * 4;
/* blanking settings */
uint16_t new_hor_blanking_context_a = MAX_IMAGE_WIDTH - new_width_context_a + MINIMUM_HORIZONTAL_BLANKING;
uint16_t new_ver_blanking_context_a = 10; // this value is the first without image errors (dark lines)
uint16_t new_hor_blanking_context_b = MAX_IMAGE_WIDTH - new_width_context_b + MINIMUM_HORIZONTAL_BLANKING;
uint16_t new_ver_blanking_context_b = 10;
/* Read Mode
*
* bits | ... | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
* -------------------------------------------------------------------
* current values | ... | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 |
*
* (1:0) Row Bin
* (3:2) Column Bin
* (9:8) Reserved
*
*/
uint16_t new_readmode_context_a = 0x30A ; // row + col bin 4 enable, (9:8) default
uint16_t new_readmode_context_b = 0x305 ; // row bin 2 col bin 4 enable, (9:8) default
/*
* Settings for both context:
*
* Exposure time should not affect frame time
* so we set max on 64 (lines) = 0x44
*/
uint16_t min_exposure = 0x0001; // default
uint16_t max_exposure = 0x01E0; // default
uint16_t new_max_gain = 64; // VALID RANGE: 16-64 (default)
uint16_t pixel_count = 4096; //64x64 take all pixels to estimate exposure time // VALID RANGE: 1-65535
uint16_t desired_brightness = 58; // default
uint16_t resolution_ctrl = 0x0203; // default
uint16_t hdr_enabled = 0x0100; // default
uint16_t aec_agc_enabled = 0x0003; // default
uint16_t coarse_sw1 = 0x01BB; // default from context A
uint16_t coarse_sw2 = 0x01D9; // default from context A
uint16_t shutter_width_ctrl = 0x0164; // default from context A
uint16_t total_shutter_width = 0x01E0; // default from context A
if(global_data.param[PARAM_IMAGE_LOW_LIGHT])
{
min_exposure = 0x0001;
max_exposure = 0x0060;
desired_brightness = 30; // VALID RANGE: 1-64
resolution_ctrl = 0x0303;
hdr_enabled = 0x0101; // on
aec_agc_enabled = 0x0303; // on
coarse_sw1 = 0x01BB; // default from context A
coarse_sw2 = 0x01D9; // default from context A
shutter_width_ctrl = 0x0164; // default from context A
total_shutter_width = 0x01E0; // default from context A
}
else
{
min_exposure = 0x0001;
max_exposure = 0x0080;
desired_brightness = 50; // VALID RANGE: 1-64
resolution_ctrl = 0x0202;
hdr_enabled = 0x0000; // off
aec_agc_enabled = 0x0303; // on
coarse_sw1 = 0x01BB; // default from context A
coarse_sw2 = 0x01D9; // default from context A
shutter_width_ctrl = 0x0164; // default from context A
total_shutter_width = 0x01E0; // default from context A
}
uint16_t row_noise_correction = 0x0000; // default
if(global_data.param[PARAM_IMAGE_ROW_NOISE_CORR])
row_noise_correction = 0x0101;
else
row_noise_correction = 0x0000;
uint16_t version = mt9v034_ReadReg16(MTV_CHIP_VERSION_REG);
if (version == 0x1324)
{
mt9v034_WriteReg16(MTV_CHIP_CONTROL_REG, new_control);
/* Context A */
mt9v034_WriteReg16(MTV_WINDOW_WIDTH_REG_A, new_width_context_a);
mt9v034_WriteReg16(MTV_WINDOW_HEIGHT_REG_A, new_height_context_a);
mt9v034_WriteReg16(MTV_HOR_BLANKING_REG_A, new_hor_blanking_context_a);
mt9v034_WriteReg16(MTV_VER_BLANKING_REG_A, new_ver_blanking_context_a);
mt9v034_WriteReg16(MTV_READ_MODE_REG_A, new_readmode_context_a);
mt9v034_WriteReg16(MTV_COLUMN_START_REG_A, (MAX_IMAGE_WIDTH - new_width_context_a) / 2 + MINIMUM_COLUMN_START); // Set column/row start point for lower resolutions (center window)
mt9v034_WriteReg16(MTV_ROW_START_REG_A, (MAX_IMAGE_HEIGHT - new_height_context_a) / 2 + MINIMUM_ROW_START);
mt9v034_WriteReg16(MTV_COARSE_SW_1_REG_A, coarse_sw1);
mt9v034_WriteReg16(MTV_COARSE_SW_2_REG_A, coarse_sw2);
mt9v034_WriteReg16(MTV_COARSE_SW_CTRL_REG_A, shutter_width_ctrl);
mt9v034_WriteReg16(MTV_V2_CTRL_REG_A, total_shutter_width);
/* Context B */
mt9v034_WriteReg16(MTV_WINDOW_WIDTH_REG_B, new_width_context_b);
mt9v034_WriteReg16(MTV_WINDOW_HEIGHT_REG_B, new_height_context_b);
mt9v034_WriteReg16(MTV_HOR_BLANKING_REG_B, new_hor_blanking_context_b);
mt9v034_WriteReg16(MTV_VER_BLANKING_REG_B, new_ver_blanking_context_b);
mt9v034_WriteReg16(MTV_READ_MODE_REG_B, new_readmode_context_b);
mt9v034_WriteReg16(MTV_COLUMN_START_REG_B, MINIMUM_COLUMN_START); // default
mt9v034_WriteReg16(MTV_ROW_START_REG_B, MINIMUM_ROW_START);
mt9v034_WriteReg16(MTV_COARSE_SW_1_REG_B, coarse_sw1);
mt9v034_WriteReg16(MTV_COARSE_SW_2_REG_B, coarse_sw2);
mt9v034_WriteReg16(MTV_COARSE_SW_CTRL_REG_B, shutter_width_ctrl);
mt9v034_WriteReg16(MTV_V2_CTRL_REG_B, total_shutter_width);
/* General Settings */
mt9v034_WriteReg16(MTV_ROW_NOISE_CORR_CTRL_REG, row_noise_correction);
mt9v034_WriteReg16(MTV_AEC_AGC_ENABLE_REG, aec_agc_enabled); // disable AEC/AGC for both contexts
mt9v034_WriteReg16(MTV_HDR_ENABLE_REG, hdr_enabled); // disable HDR on both contexts
mt9v034_WriteReg16(MTV_MIN_EXPOSURE_REG, min_exposure);
mt9v034_WriteReg16(MTV_MAX_EXPOSURE_REG, max_exposure);
mt9v034_WriteReg16(MTV_MAX_GAIN_REG, new_max_gain);
mt9v034_WriteReg16(MTV_AGC_AEC_PIXEL_COUNT_REG, pixel_count);
mt9v034_WriteReg16(MTV_AGC_AEC_DESIRED_BIN_REG, desired_brightness);
mt9v034_WriteReg16(MTV_ADC_RES_CTRL_REG, resolution_ctrl); // here is the way to regulate darkness :)
/* Reset */
mt9v034_WriteReg16(MTV_SOFT_RESET_REG, 0x01);
}
}
/**
* @brief Configures the mt9v034 camera with two context (binning 4 and binning 2).
*/
void mt9v034_context_configuration(void)
{
/* Chip Control
*
* bits | 15 | ... | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
* -------------------------------------------------------------------
* current values | 0 | ... | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
*
* (0:2) Scan Mode (Progressive scan)
* (3:4) Sensor Operation Mode (Master mode)
* (5) Stereoscopy Mode (Disable)
* (6) Stereoscopic Master/Slave mode (not used)
* (7) Parallel Output Enable (Enable)
* (8) Simultaneous/Sequential Mode (Simultaneous mode)
* (9) Reserved
*
* (15)Context A (0) / Context B (1)
*
*/
uint16_t new_control;
if (FLOAT_AS_BOOL(global_data.param[PARAM_VIDEO_ONLY]))
new_control = 0x8188; // Context B
else
new_control = 0x0188; // Context A
/* image dimentions */
uint16_t new_width_context_a = global_data.param[PARAM_IMAGE_WIDTH] * 4; // windowing off, row + col bin reduce size
uint16_t new_height_context_a = global_data.param[PARAM_IMAGE_HEIGHT] * 4;
uint16_t new_width_context_b = FULL_IMAGE_ROW_SIZE * 4; // windowing off, row + col bin reduce size
uint16_t new_height_context_b = FULL_IMAGE_COLUMN_SIZE * 4;
/* blanking settings */
uint16_t new_hor_blanking_context_a = 425 + MINIMUM_HORIZONTAL_BLANKING;// 709 is minimum value without distortions
uint16_t new_ver_blanking_context_a = 10; // this value is the first without image errors (dark lines)
uint16_t new_hor_blanking_context_b = MAX_IMAGE_WIDTH - new_width_context_b + MINIMUM_HORIZONTAL_BLANKING;
if (new_hor_blanking_context_b < 800) {
new_hor_blanking_context_b = 800;
}
uint16_t new_ver_blanking_context_b = 10;
/* Read Mode
*
* bits | ... | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
* -------------------------------------------------------------------
* current values | ... | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 |
*
* (1:0) Row Bin
* (3:2) Column Bin
* (9:8) Reserved
*
*/
uint16_t new_readmode_context_a = 0x30A ; // row + col bin 4 enable, (9:8) default
uint16_t new_readmode_context_b = 0x305 ; // row bin 2 col bin 4 enable, (9:8) default
/*
* Settings for both context:
*
* Exposure time should not affect frame time
* so we set max on 64 (lines) = 0x40
*/
uint16_t min_exposure = 0x0001; // default
uint16_t pixel_count = 4096; //64x64 take all pixels to estimate exposure time // VALID RANGE: 1-65535
uint16_t shutter_width_ctrl = 0x0164; // default from context A
uint16_t aec_update_freq = 0x02; // default Number of frames to skip between changes in AEC VALID RANGE: 0-15
uint16_t aec_low_pass = 0x01; // default VALID RANGE: 0-2
uint16_t agc_update_freq = 0x02; // default Number of frames to skip between changes in AGC VALID RANGE: 0-15
uint16_t agc_low_pass = 0x02; // default VALID RANGE: 0-2
uint16_t resolution_ctrl = 0x0303; // 12 bit adc for low light
uint16_t max_gain = global_data.param[PARAM_GAIN_MAX];
uint16_t max_exposure = global_data.param[PARAM_EXPOSURE_MAX];
uint16_t coarse_sw1 = global_data.param[PARAM_SHTR_W_1];
uint16_t coarse_sw2 = global_data.param[PARAM_SHTR_W_2];
uint16_t total_shutter_width = global_data.param[PARAM_SHTR_W_TOT];
uint16_t hdr_enabled = 0x0000;
bool hdr_enable_flag = global_data.param[PARAM_HDR] > 0;
if (hdr_enable_flag) {
hdr_enabled = 0x0100;
}
bool aec_enable_flag = global_data.param[PARAM_AEC] > 0;
uint16_t aec_agc_enabled = 0x0000;
if (aec_enable_flag) {
aec_agc_enabled |= (1 << 0);
}
bool agc_enable_flag = global_data.param[PARAM_AGC] > 0;
if (agc_enable_flag) {
aec_agc_enabled |= (1 << 1);
}
uint16_t desired_brightness = global_data.param[PARAM_BRIGHT];
uint16_t row_noise_correction = 0x0000; // default
uint16_t test_data = 0x0000; // default
if(FLOAT_AS_BOOL(global_data.param[PARAM_IMAGE_ROW_NOISE_CORR]) && !FLOAT_AS_BOOL(global_data.param[PARAM_IMAGE_TEST_PATTERN]))
row_noise_correction = 0x0101;
else
row_noise_correction = 0x0000;
if (FLOAT_AS_BOOL(global_data.param[PARAM_IMAGE_TEST_PATTERN]))
test_data = 0x3000; //enable vertical gray shade pattern
else
test_data = 0x0000;
uint16_t version = mt9v034_ReadReg16(MTV_CHIP_VERSION_REG);
if (version == 0x1324)
{
mt9v034_WriteReg16(MTV_CHIP_CONTROL_REG, new_control);
// Initialize frame control reg
mt9v034_WriteReg(0x72, 0x0000);
// Write reserved registers per Rev G datasheet table 8 recommendations
mt9v034_WriteReg16(0x13, 0x2D2E);
mt9v034_WriteReg16(0x20, 0x03C7);
mt9v034_WriteReg16(0x24, 0x001B);
mt9v034_WriteReg16(0x2B, 0x0003);
mt9v034_WriteReg16(0x2F, 0x0003);
/* Context A */
mt9v034_WriteReg16(MTV_WINDOW_WIDTH_REG_A, new_width_context_a);
mt9v034_WriteReg16(MTV_WINDOW_HEIGHT_REG_A, new_height_context_a);
mt9v034_WriteReg16(MTV_HOR_BLANKING_REG_A, new_hor_blanking_context_a);
mt9v034_WriteReg16(MTV_VER_BLANKING_REG_A, new_ver_blanking_context_a);
mt9v034_WriteReg16(MTV_READ_MODE_REG_A, new_readmode_context_a);
mt9v034_WriteReg16(MTV_COLUMN_START_REG_A, (MAX_IMAGE_WIDTH - new_width_context_a) / 2 + MINIMUM_COLUMN_START); // Set column/row start point for lower resolutions (center window)
mt9v034_WriteReg16(MTV_ROW_START_REG_A, (MAX_IMAGE_HEIGHT - new_height_context_a) / 2 + MINIMUM_ROW_START);
mt9v034_WriteReg16(MTV_COARSE_SW_1_REG_A, coarse_sw1);
mt9v034_WriteReg16(MTV_COARSE_SW_2_REG_A, coarse_sw2);
mt9v034_WriteReg16(MTV_COARSE_SW_CTRL_REG_A, shutter_width_ctrl);
mt9v034_WriteReg16(MTV_COARSE_SW_TOTAL_REG_A, total_shutter_width);
/* Context B */
mt9v034_WriteReg16(MTV_WINDOW_WIDTH_REG_B, new_width_context_b);
mt9v034_WriteReg16(MTV_WINDOW_HEIGHT_REG_B, new_height_context_b);
mt9v034_WriteReg16(MTV_HOR_BLANKING_REG_B, new_hor_blanking_context_b);
mt9v034_WriteReg16(MTV_VER_BLANKING_REG_B, new_ver_blanking_context_b);
mt9v034_WriteReg16(MTV_READ_MODE_REG_B, new_readmode_context_b);
mt9v034_WriteReg16(MTV_COLUMN_START_REG_B, MINIMUM_COLUMN_START); // default
mt9v034_WriteReg16(MTV_ROW_START_REG_B, MINIMUM_ROW_START);
mt9v034_WriteReg16(MTV_COARSE_SW_1_REG_B, coarse_sw1);
mt9v034_WriteReg16(MTV_COARSE_SW_2_REG_B, coarse_sw2);
mt9v034_WriteReg16(MTV_COARSE_SW_CTRL_REG_B, shutter_width_ctrl);
mt9v034_WriteReg16(MTV_COARSE_SW_TOTAL_REG_B, total_shutter_width);
/* General Settings */
mt9v034_WriteReg16(MTV_ROW_NOISE_CORR_CTRL_REG, row_noise_correction);
mt9v034_WriteReg16(MTV_AEC_AGC_ENABLE_REG, aec_agc_enabled); // disable AEC/AGC for both contexts
mt9v034_WriteReg16(MTV_HDR_ENABLE_REG, hdr_enabled); // disable HDR on both contexts
mt9v034_WriteReg16(MTV_MIN_EXPOSURE_REG, min_exposure);
mt9v034_WriteReg16(MTV_MAX_EXPOSURE_REG, max_exposure);
mt9v034_WriteReg16(MTV_MAX_GAIN_REG, max_gain);
mt9v034_WriteReg16(MTV_AGC_AEC_PIXEL_COUNT_REG, pixel_count);
mt9v034_WriteReg16(MTV_AGC_AEC_DESIRED_BIN_REG, desired_brightness);
mt9v034_WriteReg16(MTV_ADC_RES_CTRL_REG, resolution_ctrl); // here is the way to regulate darkness :)
mt9v034_WriteReg16(MTV_DIGITAL_TEST_REG, test_data);//enable test pattern
mt9v034_WriteReg16(MTV_AEC_UPDATE_REG,aec_update_freq);
mt9v034_WriteReg16(MTV_AEC_LOWPASS_REG,aec_low_pass);
mt9v034_WriteReg16(MTV_AGC_UPDATE_REG,agc_update_freq);
mt9v034_WriteReg16(MTV_AGC_LOWPASS_REG,agc_low_pass);
/* Reset */
mt9v034_WriteReg16(MTV_SOFT_RESET_REG, 0x01);
}
}
