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Altera_Forum
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17 years ago

jtag interface from user aplication

Hi, I'm trying to access the jtag port inside the fpga with the alt_jtag_atlantic block (also used in the jtag_uart for the niosII processor). I need access to the jtag port from a custom...
Altera_Forum's avatar
Altera_Forum
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17 years ago

I rembered your post, when I stumbled upon the same enum issue with MSVC. I can supply now a small example application, including the MSVC import library and modified include file.

Best regards,

Frank

P.S.: As another comment, jtag_atlantic.dll is only seeing JTAG UART (NODE_ID 0x80) virtual JTAG functions. To interface any other virtual JTAG node type, you have to go through jtag_client.dll. According to the exported functions, sld_hapi.dll is providing an interface similar to virtual JTAG tcl commands provided by quartus_stp, as documented in TclScriptRefMnl.pdf. Unfortunately there's no interface documentation for both DLLs.

Another option is using generic JTAG interfaces and implementing the virtual JTAG protocol, as discussed in other threads.