Programming Devices Programmer Options Dialog Box You open this pageby clicking Tools > Options . in the Programmer window Programmer (Tools Menu) You open the Programmer window by clicking Tools > Programmer. Open JTAG Chain Log File Dialog Box You open this dialog box by clicking Open JTAG Chain Log on the JTAG Chain Debugging pane of the JTAG Chain Debugger. JTAG Chain Debugger Command (Tools Menu) You access this tool by clicking Tools > JTAG Chain Debugger. The JTAG Chain Debugger tool is available only when the Programmer window is open and you have a device connected through the JTAG chain.