ByteBlasterMV programming with JTAG disabled

[Altera_Forum]

I’ve disabled JTAG so I can use the JTAG pins for I/O and used a JBC file to program an EPM7064S using ByteBlasterMV. Using a POF file doesn’t work. 

  As far as I can tell the programming seems to have work including the use of the JTAG pins for user I/O. Although the verify function doesn’t work.    How does this work?   Why doesn’t the verify work?   Is there anything I need to watch out for?  If I program all of the JTAG pins as O/P will it stop the JTAG programming from working?    Some of my settings ....    set_global_assignment -name DEVICE "EPM7064SLC44-10"  set_global_assignment -name LAST_QUARTUS_VERSION "9.1 SP2"  set_global_assignment -name MAX7000_DEVICE_IO_STANDARD TTL  set_global_assignment -name MAX7000_ENABLE_JTAG_BST_SUPPORT OFF  set_global_assignment -name SECURITY_BIT OFF  set_global_assignment -name GENERATE_JBC_FILE ON  Terry

[Altera_Forum]

If I understand right, your way of programming is a one way ticket. You can't neither verify nor reprogram the chip. If you want to, you need a programmer that supports a high voltage programming method, e.g. the Altera Programming Unit (APU).

[Altera_Forum]

--- Quote Start ---  If I understand right, your way of programming is a one way ticket. You can't neither verify nor reprogram the chip. If you want to, you need a programmer that supports a high voltage programming method, e.g. the Altera Programming Unit (APU).  --- Quote End ---     Hi thanks for your comment but I’ve found it does work.     I’ve programmed it with a good design and it works. I then programmed it with a bad design and it stopped working as I expect. I’ve programmed it with a good design and it works again.     I’ve not checked if the JTAG pins have been programmed correctly so it is possible it’s only been partial programmed. I will check this out later on when I have time and report back.    Terry