xushan2003
Newbie level 5
Hello,
I am doing a FPGA kit using Xilinx XC3s200PQ208.
When VCCO0~7 are connected to 3.3v,the current is about 2.5A and voltage drop from 3.3v to 1.4v.
VCCAUX is 2.5v @ 170mA.
VCCINT is 1.2v @ 35mA, which I think are normal.
I checked the power pins they are all connected correctly.
And the other pins are all unconnected except configuration pins.
The resistance between VCCIO and GND is 12K when no power connected but when connected to 3.3V it seems to be 1.4V/2.5V<1ohm.
So where am I wrong? Any one could give me some suggestions?
best regards
I am doing a FPGA kit using Xilinx XC3s200PQ208.
When VCCO0~7 are connected to 3.3v,the current is about 2.5A and voltage drop from 3.3v to 1.4v.
VCCAUX is 2.5v @ 170mA.
VCCINT is 1.2v @ 35mA, which I think are normal.
I checked the power pins they are all connected correctly.
And the other pins are all unconnected except configuration pins.
The resistance between VCCIO and GND is 12K when no power connected but when connected to 3.3V it seems to be 1.4V/2.5V<1ohm.
So where am I wrong? Any one could give me some suggestions?
best regards