SLWU087E november 2013 – june 2023
Disconnect the HSDC Pro from master board, and connect the software to slave. The user must select the device under test on the slave board again as the GUI does not keep track when using multiple boards.
Once the device is selected from the drag down menu, the message in Figure 3-15 will occur. Click OK to continue.
In the GUI main panel, enter the sampling rate for the correct FFT processing. Once this value is entered, the captured data from the trigger event is displayed.
For the TSW14J5x, there is an advanced option available for Master/Slave triggering that is synchronized with the SYSREF signal used by the JESD204B interface. This mode enables a Master/Slave triggering synchronized with SYSREF rising edges. In master mode, a hardware output trigger is generated on the TRIG_OUT_A/B/C SMAs at the first rising edge of SYSREF that occurs after the user presses the ‘Capture’ button. The data is captured at the next rising edge of SYSREF.
In the slave triggering mode, the capture occurs at the first SYSREF rising edge following the trigger input rising edge on the TRIG_IN SMA input. This way both Master and Slave will start capturing data at the same SYSREF edge in a Synchronized manner.
Software Changes Required: (The following steps are applicable for both ADC and DAC)
To put the TSW14J5x boards in Sysref-Based Master Slave Triggering mode, add the following INI parameter just below the [Version 1.0] entry in the corresponding master and slave device INI files, as shown in Figure 3-16.
In the HSDC Pro GUI, select the Trigger Option menu under Data Capture Options.
For the master board, select Trigger mode enable and Arm on next capture button press.
For the slave board, select Trigger mode enable in the Trigger Option window.
HSDC Pro GUI is now configured for SYSREF-Based Master Slave Triggering. Go back to the master board and the software will do a capture on the next rising edge detected on EXT_TRG_INPUT/TRIG_IN connectors after the user clicks on the "capture" button.