Description:
A new unified Capture module was created to replace the older versions of both the Capture and Probe modules. In addition, new trigger features were introduced.
All Capture modules have a base feature set: Single-shot capture with the new trigger select, pre-trigger condition, and filter options. This Single-shot capture replaces the basic capture in prior FPGA versions. Some FPGAs support an additional Auto-arm mode. When enabled by software, Auto-arm uses a capture buffer memory to store multiple capture events (replaces the Probe module in prior FPGA versions).
The new trigger logic is common to all FPGAs (and slightly different to prior FPGA versions). Up to 32 trigger source inputs are available. The exact set of trigger source signals depends on the IO for each node. A trigger event can be selected from any input, with rising, falling, or both edges active. An optional filter function can be used to deglitch the signal. An optional pre-condition (based on the same trigger sources) can be specified: pre-condition high, low, rising edge, falling edge, or both.
For more information about using the new capture features, see Capture Objects. |
