Honored ContributorI used power analyzer tool to estimate the power consumption of my design (a vcd file). I find the current flow into VCCINT is nearly 7mA, Since I inserted a resistor in the power supply rail of the VCCINT, and I measured the current flow through the resistor is nearly 12mA. Can someone tell me why there is a big difference between these two values? Thank you very much.
Honored ContributorThank you for your replr. I find there are some unconstrains path,like altera_reserved_tdo,tdi,tms these staffs, how to solve these? And will these influence the power analyzer result? Thank you.
Honored Contributorno, those are the jtag interface and it isn't important.
Honored ContributorI have used power analyzer toll to estimate the power. But there are some values seems strange. One is when I reduced RETI instructions (only 3.48), it significant reduced much current ( the biggest reduced in those instructions), while in the resource usage report, it didnot reduced so much resouce, like logic elements or registers. Why it will reduce so much current? What possible cause this result? Another value is when I reduced all the instructions (3.72) which didnot been used in my test program, it didnot reduce the more current consumption than when I just reduced one of those instructions (like 3.53, 3.48 ) or some part which related to ALU (3.5), how could this happen? ALL the value on the garph are the value get by the power analyzer tool when reduced part of the microcontroller, like unused instructions, unused registers, unused hardware multipliers. The first "all" in the graph means nothing reduced, others are all values after reduced. Thank you very much.
