Hello everyone.
Hevday Logic's Interactive Logic software is now available for free download from
For those of you who missed my first post, here are some of the features of Hevday Interactive Logic:
- The ability to view and modify signals and data directly on schematics in an entire multi level design while the circuit is running, paused or while stepping the circuit one clock at a time.
- Digital waveform style display of Data vs. Clock Cycles.
- Long time scale waveform display of signals over periods of continuous operation up to 7 days.
- Setting of breakpoints for debugging circuit state after predefined conditions.
- A novel approach for determining maximum allowable clock frequency, based on testing actual circuit functionality.
Hevday Interactive Logic has been designed for prototyping and small volume applications and uses Xilinx FPGAs.
For more information, please visit
All feedback welcome. Regards, Andrew Ward.