Programming a MaxII and have an error 44

Altera_Forum · ‎06-20-2011

Hi

I'm trying to program my CPLD, but when I plug the USB blaster and start the tool Programmer, I have the error 44. What can I do with that?

Maybe I've made some mistake with the VCCint and VCCIO pins. On my proto all the VCC are linked, is this a mistake? I've done this because I power the CPLD in 3.3V and my outs are in 3.3 too.

I've seen that all the VCC pins must be connected.

I don't remember if TCK TMS need a pull up or down resistor, maybe it is my mistake.

Thanks for helping

Altera_Forum · ‎06-21-2011

I've forgotten to put ground and VCC of the JTAG but it did not work anyway.

Altera_Forum · ‎06-21-2011

I put the entire error message

Error: Can't access JTAG chain

Error: Unexpected error in JTAG server -- error code 44

Error: Operation failed

Maybe it can help

Altera_Forum · ‎07-22-2011

hi,

i have an EPM570GT100C5N MAX II CPLD and get exactly the same errors on Quartus II 9.0, 9.1 and 11.0.

Could you solve the problem meanwhile, please?

Cheers

MIchael

Altera_Forum · ‎08-27-2012

Have you solved this problem?

I'm getting the same error with MAX V, 5M570ZT100C4N , My VCCIO and JTAG at 3.3V

Anything?

Altera_Forum · ‎08-27-2012

Yes, you have to add pull resistor, check if your programmer need that target CPLD is powered before programming.

example schematic (http://elecfreaks.com/store/download/datasheet/dev%20platform/fpga/epm240.pdf)

Connecting Vio and Vint together is ok, check if there are enough decoupling capacitor