Problem related to Jtag VCC

[amburose]

hi,

im my PCB board Jtag pin im recive only 3.22 voltage,
but when im connected to xilinix ISE impact its not be connected and the shows the error
check the cable power supply.....

3.22 voltage acceptable for Jtag.......

kindly reply as soom as possible..........

 

[FvM]

herm300 jtag vcc?

Consider a +/- 5% tolerance of any supply voltage, thus 3.22 is O.K. The problem is most likely caused by any kind of wiring error. However, I'm not familiar with Xilinx tools and don't know, if the error may also indicate a not responding device, e. g. due to a missing core voltage.

 

[karikalan_t79]

Re: Related to Jtag VCC

just check out schmatic for jtag tdi and tck pin pull up and pull down