colt45
Member level 1
Hey,
i have daisy chained 2 FPGAs and 1 EEPROM but i cannot program them using JTAG mode. The error says" DONE pin did not go high". I have checked my circuit many times and i am sure that by now it's working fine but still the problem persists.
I am using the 2.5V settings i.e. no series resistors. The design is like this:
EEPROM -> XC3S4000 -> XC3S4000
i have connected EEPROM's TDO to first FPGAs TDI and so on.
Can anyone give me some pointers or any solution ?
also it would be nice to tell me the daisy chain configuration so that i can compare whether i am doing the right thing.
thanks
i have daisy chained 2 FPGAs and 1 EEPROM but i cannot program them using JTAG mode. The error says" DONE pin did not go high". I have checked my circuit many times and i am sure that by now it's working fine but still the problem persists.
I am using the 2.5V settings i.e. no series resistors. The design is like this:
EEPROM -> XC3S4000 -> XC3S4000
i have connected EEPROM's TDO to first FPGAs TDI and so on.
Can anyone give me some pointers or any solution ?
also it would be nice to tell me the daisy chain configuration so that i can compare whether i am doing the right thing.
thanks