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TDC1000-GASEVM: configurations tdc-1000-GASEVM

Andre Ribeiro77
Prodigy 50 points

Part Number: TDC1000-GASEVM

Hello. I am trying to get the TDC-1000-GASEVM to work. The problem seems to be in the configurations. When i connect it to the Oscilloscope i can see all the signals mentioned in the user guide, but i can't get the system to make sense. The system seems to generate TOF - measurement without having recived a stop signal. when i push air through the measuring device i get no response, always show zero flow. My transducers are 352 kHz, jumper is placed on CPU clock. Attached are screenshots of my configuration

Can someone help me figure out what is wrong in my configurations.

André Ribeiro

  • 0
    TI__Mastermind 31655 points
    Hi Andre,

    Can you please post a screenshot of the TDC7200 tab, and save your configuration file then upload it here as well?

    Thanks,
  • 0
    Prodigy 50 points

    Part Number: TDC1000-GASEVM

    Hi Scott, Here are the files you requested.

    André

    TDC1000_Setup_GASS_4.txt 
    TDC1000_Config0                         2F
TDC1000_Config1                         47
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                     0000
TDC_AVG/STDEV_NUM_ELEMS                 0001
SAVE_GRAPH_DATA_TO_FILE                 00
FLOW_MODE_SELECT                        01
Y-SCALE_CENTER                          0032
X-SCALE_RANGE                           0032
MEASURE_RTD1                            00
SAVE_RESULT_REGR_TO_FILE                00
GRAPH_MULTI_STOPS                       00
TDC_SELECT                              01
TEMP_RTD_SELECT                         00
TEMP_RTD_MODE                           01
TEMP_AVG/STDEV_NUM_ELEMS                000A
SAVE_TEMP_DATA                          00
GRAPH_YMAX_DATA                         0000000000000032
GRAPH_YMIN_DATA                         FFFFFFFFFFFFFFCE
TDC1000-HV_DRV_EN1                      01
TDC1000-HV_DRV_EN2                      01
HV_DRV_EN1_Period                       00C8
HV_DRV_EN2_Period                       00C8
ENABLE_POWER_CYCLE                      00
CLK_FREQ_(1-16MHz)                      1.411800
CLK_SOURCE_SEL                          03
CPU_CLK_FREQ                            07
CPU_CLK_EN                              01
TDC1000-HV_BST_PWR_EN                   01
HV_BST_PWR_EN_Period                    0000
FWD2REV_FLOW_DELAY                      0000
TDC1000-IMPE_MATCH_EN                   00
ENABLE_UART_STREAM                      00
ENABLE_MSP430TIMER_TDC                  00

  • 0 in reply to Andre Ribeiro77
    TI__Mastermind 31655 points

    Hi Andre,

    Thank you. Please start by setting the NUMBER OF STOPS setting on the TDC7200 tab to five in addition to your current register settings.

    Regards,

  • 0 in reply to Scott Cummins
    Prodigy 50 points

    Hei Scott. 

    The configurations does not work properly. Do you have any other configurations i can try. 

    Or an idea about what might be wrong?

    André,

  • 0 in reply to Scott Cummins
    Prodigy 50 points

    Hi Scott, i have experimented with different config.The system is not functioning propperly, i assume it lies in2262.scope_pictures.docxthe configuration. It seams that the TDC1000-GASEVM create stop pulses without having received an ultrasonic signal. attached are some scope pictures during meassurement, the stop signals generate randomly and differ in number of created pulses. Can you think off what else might be the problem?

    Regards,

    André