Texas Instruments TSW12QJ1600, User Manual

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17 SLAU796 – July 2020
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Troubleshooting the TSW12QJ1600EVM
Chapter 5
SLAU796 – July 2020
Troubleshooting the TSW12QJ1600EVM
Table 5-1 lists some troubleshooting procedures.
Table 5-1. Troubleshooting
Issue Troubleshoot
General problems
• Verify the test setup shown in Figure 3-1 , and repeat the setup procedure as described in this
document.
• Check power supply to EVM and TSW14J58EVM. Verify that the power switch is in the on
position.
• Check signal and clock connections to EVM.
• Visually check the top and bottom sides of the board to verify that nothing looks discolored or
damaged.
• Ensure the board-to-board FMC connection is secure.
• Try pressing the CPU_RESET button on the TSW14J58EVM. Also try clicking Instrument
Options → Reset Board after changing the ADC configuration.
• Try power-cycling the external power supply to the EVM, and reprogram the LMK and ADC
devices.
Configuration GUI is not
working properly
• Verify that the USB cable is plugged into the EVM and the PC.
• Check the computer device manager 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 it is not lit,
click the Reconnect FTDI button.
• Try restarting the configuration GUI.
Configuration GUI is not
able to connect to the EVM
• Use the free FT_PROG software from FTDI chip and verify that the onboard FTDI chip is
programmed with the product description ADC12QJxx00 RD.
HSDC Pro software is not
capturing good data or
analysis results are
incorrect.
• Verify that the TSW14J58EVM is properly connected to the PC with a mini-USB cable and that
the board serial number is properly identified by the HSDC software.
• Check that the proper ADC device mode is selected. The mode should match in HSDC Pro and
the ADC GUI.
• Check that the analysis parameters are properly configured.
HSDC Pro 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 correctly set in the HSDC software.
• Try pressing the CPU_RESET button on the TSW14J58EVM. Also try clicking Instrument
Options → Reset Board after changing the ADC configuration. Try to recapture again.
• Select Instrument Options → Download Firmware and download
'TSW14J58_64B66B_12G_16G_REFCLKBY64_IID_28.rbf'. Try to capture again.
Sub-optimal measured
performance
• Try clicking Cal Triggered/Running button 2× to re-calibrate the ADC in the current operating
conditions. It is located on the Control tab of the configuration GUI.
• 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.