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Altera_Forum
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16 years ago

Is there any virtual jtag C API functions?

Dear All, I am using Altera Virtual Jtag to develop my own debug tool on FPGA. I notice that on host PC, I have to write Tcl script and evaluated it through quartus_stp.exe shell prog...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

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Altera should officially undisclose a virtual JTAG API, because it's a strong Quartus feature that can be utilized as a competitive edge.

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I agree. So I can just wait for more information from Altera for its JTAG API.

I currently use quartus_stp.exe Tcl shell to access Virtual Jtag interface in FPGA, and my C application communicates the Tcl shell through a pipe. This works well, but I am afraid it is less efficient, since running a Tcl command is always slower than running a C command.