SignalTap feature to drive internal signals

Altera_Forum · ‎08-22-2012

Xilinx ChipScope has Virtual IO core, which can monitor and drive internal FPGA signals.

Here is its spec (http://www.xilinx.com/support/documentation/ip_documentation/chipscope_vio.pdf).

I wonder if Altera tools have something similar. I was unsuccessfully trying to find in SignalTap documentation.

Thanks,

Evgeni

Altera_Forum · ‎08-23-2012

sources and probes. there is a megafunction

Altera_Forum · ‎08-23-2012

Source and probe offers part of the functionality: Drive signals quasi-statically, not changing at design speed.

A real time stimulus generator would be an interesting extension to SignalTap, but isn't yet available from Altera. For the time being, you need to design similar test tools yourself. You can e.g. download stimuli to a block RAM through the memory editor tool and replay it by a simple state machine.

The SignalTap trigger out feature can be used to synchronize a stimulus generator.

Altera_Forum · ‎08-23-2012

Which type of RAM is most suitable for this purpose?

Altera_Forum · ‎08-23-2012

Thanks for all your responses.

Here is the link to sources & probes megafunction. (http://www.altera.com/literature/hb/qts/qts_qii53021.pdf)

Evgeni