Hello all,
My customer is evaluating TDC1000-TDC7200EVM.
They want to measure the air mass flow in the prepared sensor, but it does not work properly.
【Issue】
・Start and stop signal does not appear on an oscilloscope.
・Regardless of the presence or absence of the flow,There is no change in the value of the
TOF AVG VALUE on the TDC1000-TDC7200EVM GUI.
【Customer configuration】
TDC1000_Config0 47
TDC1000_Config1 41
TDC1000_Config2 12
TDC1000_Config3 08
TDC1000_Config4 1F
TDC1000_TOF-1 E4
TDC1000_TOF-0 32
TDC1000_Error_Flags 00
TDC1000_Timeout 03
TDC1000_Clock_Rate 01
TDC1000_Conts_Trigger 01
TDC7200_Config1 02
TDC7200_Config2 40
TDC7200_Interrupt_Status 07
TDC7200_Interrupt_Mask 07
TDC7200_Coarse_Cntr_Ov_H FF
TDC7200_Coarse_Cntr_Ov_L FF
TDC7200_Clock_Cntr_Ov_H FF
TDC7200_Clock_Cntr_Ov_L FF
TDC7200_Clock_Cntr_Stop_Mask_H 00
TDC7200_Clock_Cntr_Stop_Mask_L 00
TRIGGER_UPDATE_FREQ 0001
TDC_AVG/STDEV_NUM_ELEMS 0032
SAVE_GRAPH_DATA_TO_FILE 00
FLOW_MODE_SELECT 00
Y-SCALE_CENTER FFFF
X-SCALE_RANGE 0032
MEASURE_RTD1 00
SAVE_RESULT_REGR_TO_FILE 00
GRAPH_MULTI_STOPS 00
TDC_SELECT 00
TEMP_RTD_SELECT 00
TEMP_RTD_MODE 01
TEMP_AVG/STDEV_NUM_ELEMS 000A
SAVE_TEMP_DATA 00
GRAPH_YMAX_DATA 0000000000001788
GRAPH_YMIN_DATA FFFFFFFFFFFE178A
TDC1000-HV_DRV_EN1 01
TDC1000-HV_DRV_EN2 01
HV_DRV_EN1_Period 0064
HV_DRV_EN2_Period 0064
ENABLE_POWER_CYCLE 00
CLK_FREQ_(1-16MHz) 1.600000
CLK_SOURCE_SEL 02
CPU_CLK_FREQ 09
CPU_CLK_EN 01
TDC1000-HV_BST_PWR_EN 00
HV_BST_PWR_EN_Period 000F
FWD2REV_FLOW_DELAY 0000
TDC1000-IMPE_MATCH_EN 00
Evaluation environment is as follows:
・TDC1000-TDC7200EVM
・Ultrasonic Sensor UT1612MPR/UR1612MPR
(Please see attached the document for sensor specifications.)
TDC1000_Ultrasonic Sensor specifications.pdf
・Two sensors are fixed to face each other on the side of the pipe.
Please let me know if there are any mistakes in that.
Best regards,
Seishin
