對於artix7系列，通常咱們使用需要使用以下電源軌：
參考文檔：DS181 (v1.22) April 13, 2017 Artix-7 FPGAs Data Sheet: DC and AC Switching Characteristics
1、各電源軌及最大值
2、電壓軌參考值
3、電源軌上下電順序
The recommended power-on sequence is VCCINT, VCCBRAM, VCCAUX, and VCCO to achieve minimum current draw and ensure that the I/Os are 3-stated at power-on. The recommended power-off sequence is the reverse of the power-on sequence. If VCCINT and VCCBRAM have the same recommended voltage levels then both can be powered by the same supply and ramped simultaneously. If VCCAUX and VCCO have the same recommended voltage levels then both can be powered by the same supply and ramped simultaneously.
For VCCO voltages of 3.3V in HR I/O banks and configuration bank 0:
• The voltage difference between VCCO and VCCAUX must not exceed 2.625V for longer than TVCCO2VCCAUX for each
power-on/off cycle to maintain device reliability levels.
• The TVCCO2VCCAUX time can be allocated in any percentage between the power-on and power-off ramps.
The recommended power-on sequence to achieve minimum current draw for the GTP transceivers is VCCINT, VMGTAVCC,
VMGTAVTT OR VMGTAVCC, VCCINT, VMGTAVTT. Both VMGTAVCC and VCCINT can be ramped simultaneously. The recommended power-off sequence is the reverse of the power-on sequence to achieve minimum current draw.
If these recommended sequences are not met, current drawn from VMGTAVTT can be higher than specifications during powerup and power-down.
• When VMGTAVTT is powered before VMGTAVCC and VMGTAVTT – VMGTAVCC > 150 mV and VMGTAVCC < 0.7V, the VMGTAVTT
current draw can increase by 460 mA per transceiver during VMGTAVCC ramp up. The duration of the current draw can be
up to 0.3 x TMGTAVCC (ramp time from GND to 90% of VMGTAVCC). The reverse is true for power-down.
• When VMGTAVTT is powered before VCCINT and VMGTAVTT – VCCINT > 150 mV and VCCINT < 0.7V, the VMGTAVTT current draw can increase by 50 mA per transceiver during VCCINT ramp up. The duration of the current draw can be up to
0.3 x TVCCINT (ramp time from GND to 90% of VCCINT). The reverse is true for power-down.
There is no recommended sequence for supplies not shown.
4、關於各個電源軌的電流，數據表中提供了靜態和上電電流。
如下表靜態電流：
如下表 Artix7上電電流值：
工作電流根據實際情況使用功率評估軟件可以獲得。進一步提供電源設計的數據支撐。
進一步瞭解可以參考以下數據手冊：
ug440-xilinx-power-estimator
ug907-vivado-power-analysis-optimization
ug997-vivado-power-analysis-optimization-tutorial