Texas Instruments ADS58J64 EVM, Руководство пользователя, Страница: 9 / 20

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Quick Start Guide
9 SBAU284 – January 2017
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ADS58J64 EVM
2.4 Quick Start Troubleshooting
Table 2 lists tips which can be used to assist with problems that may have occurred during the quick start
procedure.
Table 2. Troubleshooting Tips
Issue Troubleshooting Tips
General problems
Verify the test setup shown in Figure 2 , and repeat the setup
procedure as described in this document.
Check power supplies to the EVM and TSW14J56EVM. Verify
that the power switches are in the ON position.
Check signal and clock connections to the EVM.
Check that all boards are properly connected together.
Try pressing the CPU_RESET button on the TSW14J56EVM.
Try power-cycling the external power supply to the EVM and
reprogram the LMK and ADC devices.
TSW14J56 LEDs are incorrect:
D1, D5 – N/A
D2, D4 – Flashing
D3, D6, D7 – OFF
D8, D28 – ON
Verify the settings of the configuration switches on the
TSW14J56EVM.
Verify that the EVM configuration GUI is communicating with the
USB, and that the configuration procedure was followed.
LEDs not flashing – reprogram the LMK device.
Try pressing the CPU_RESET button on the TSW14J56EVM.
Try capturing data in HSDC Pro to force an LED status update.
Device GUI is not working properly.
Verify that the USB cable is plugged into the EVM and the PC.
Check the Device Manager of the computer, and verify that a
USB Serial Device is recognized when the EVM is connected to
the PC.
Verify that the green USB Status LED light in the top-right corner
of the GUI is lit. If the LED is not lit, press the Reconnect FTDI
button.
Try restarting the configuration GUI.
Check default jumper connections as shown in Appendix A .
HSDC Pro Software is not capturing good data or analysis
results are incorrect.
Verify that the TSW14J56EVM is properly connected to the PC
with a mini-USB cable, and that the board serial number is
properly identified by the HSDP software.
Check that the proper ADC device is selected. In default
conditions,
ADS58J64_LMF_4841_mode01 must be selected.
Check that the analysis parameters are properly configured.
HSDP Software gives a time-out error when capturing data.
Try to reprogram the LMK device and reset the JESD204 Link.
Verify that the ADC sampling rate is correct in the HSDC Pro
software.
Sub-optimal measured performance
Try pressing the Calibrate ADC button on the INTRO tab, to
repeat the configuration GUI procedure for programming the
EVM
Check that the spectral analysis parameters are properly
configured.
Verify that bandpass filters are used in the clock and input signal
paths, and that low-noise signal sources are used.