TDC1000-TDC7200EVM: TDC1000-TDC7200EVM

zunair khan

Part Number: TDC1000-TDC7200EVM

I just recently purchased the TI TDC1000-TDC7200 EVM and I am testing the Utrasonic transducer for level sensor that accompanies the kit. I am following the config file for TDC1000 from the following video tutorial

After installing the GUI and upgrading the firmware to 2.01 I loaded the config file which is probably the one used in this video tutorial , which is also provided in attachment

Fullscreen 5758.5657.RegisterFiles-TDC1000_7200_level_cells_saleskit_2_2015_1271GUI.txt Download

TDC1000_Config0                         41
TDC1000_Config1                         41
TDC1000_Config2                         00
TDC1000_Config3                         04
TDC1000_Config4                         5F
TDC1000_TOF-1                           03
TDC1000_TOF-0                           FF
TDC1000_Error_Flags                     00
TDC1000_Timeout                         23
TDC1000_Clock_Rate                      00
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                     0004
TDC_AVG/STDEV_NUM_ELEMS                 0032
SAVE_GRAPH_DATA_TO_FILE                 00
FLOW_MODE_SELECT                        00
Y-SCALE_CENTER                          0000
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                         0000000000029810
GRAPH_YMIN_DATA                         0000000000004E20
TDC1000-HV_DRV_EN1                      00
TDC1000-HV_DRV_EN2                      00
HV_DRV_EN1_Period                       001E
HV_DRV_EN2_Period                       001E
ENABLE_POWER_CYCLE                      00
CLK_FREQ_(1-16MHz)                      8.000000
CLK_SOURCE_SEL                          00
CPU_CLK_FREQ                            05
CPU_CLK_EN                              00
TDC1000-HV_BST_PWR_EN                   00
HV_BST_PWR_EN_Period                    0000
FWD2REV_FLOW_DELAY                      0000
TDC1000-IMPE_MATCH_EN                   00
ENABLE_UART_STREAM                      00
ENABLE_MSP430TIMER_TDC                  00

but unfortunately the EVM is not working as desired and does not respond to the change in water level. On further inspecting I measured the start signal using oscilloscope and result was a saw tooth wave rather than a proper square wave.

I have not yet tested the other signals . help will be much appreciated . Thanks

over 7 years ago

0 Scott Cummins over 7 years ago

TI__Mastermind 31655 points

That configuration file is most useful if you are using the exact same test cell used in the video. First you need to make sure that the transducer is properly mounted to your container per this application note: www.ti.com/.../snaa266a.pdf

Next, read the FAQ to learn how to configure the settings for your specific application: e2e.ti.com/.../3611.everything-you-need-to-know-for-ultrasonic-tof-liquid-coupled-collateral-tools-designs-faq

Regards,

0 zunair khan over 7 years ago in reply to Scott Cummins

Prodigy 70 points

Scott thanks for your reply I wanted to ask that the pulse generated by tdc1000 for start and stop are shown as saw tooth rather than a proper square wave as shown in the picture in the previous reply, is that normal?

0 zunair khan over 7 years ago in reply to Scott Cummins

Prodigy 70 points

also the voltage level of the pulse is around a couple of mV should not it be around 3.3 ?

0 zunair khan over 7 years ago in reply to Scott Cummins

Prodigy 70 points

here is how I have mounted the transducer which is the one delivered with the kit

0 zunair khan over 7 years ago in reply to Scott Cummins

Prodigy 70 points

Scott Cummins I would be really grateful if you could guide me and answer my queries.

Matt Minasi can you help ?

0 zunair khan over 7 years ago in reply to zunair khan

Prodigy 70 points

Scott Cummins can you at least reply to my query? I believe TI sent me a faulty EVM.

0 Scott Cummins over 7 years ago in reply to zunair khan

TI__Mastermind 31655 points

Please post a picture of your setup that was used to capture that scope image (the board with all connections to transducer and scope probes) and the configuration file if the one you are using is different from the one posted earlier.

Regards

0 zunair khan over 7 years ago in reply to Scott Cummins

Prodigy 70 points

Scott Cummins Sorry but I have, removed my setup I followed the procedures as described in the video by Matt Minasi. For information I am powering the TI EVM using the usb cable that came with it and using the default trasducer that is shipped with it, the transducer has yellow wire to tx1 and blue wire to ground, All the jumpers are in default place as they should be following the tutorial. I have connected by scope to the hook test point for start pulse and ground. I you still need to see the setup I will set it up again.

Thanks

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TDC1000-TDC7200EVM: TDC1000-TDC7200EVM