Xilinx SP601 User Manual download pdf (Page 34)

34 www.xilinx.com SP601 Hardware User Guide

UG518 (v1.1) August 19, 2009

Chapter 1: SP601 Evaluation Board

12. FPGA INIT and DONE LEDs

The typical Xilinx FPGA power up and configuration status LEDs are present on the

SP601. The INIT LED DS10 comes on after the FPGA powers up and completes its internal

power-on process. The DONE LED DS9 comes on after the FPGA programming bitstream

has been downloaded and the FPGA successfully configured.

X-Ref Target - Figure 1-21

Figure 1-21: FPGA INIT and DONE LEDs

INIT_B = 0, LED: ON

INIT_B = 1, LED: OFF

FPGA INIT B

FPGA DONE

VCC2V5

R23

4.7K

1/16W

R90

27.4

1/16W

R89

27.4

1/16W

R113

332

1/16W

LED-RED-SMT

LED-GRN-SMT

DS9

DS10

UG518_21_070809

Table 1-16: FPGA INIT and DONE LED Connections

FPGA U1 Pin Schematic Netname Controlled LED

U3 FPGA_INIT_B DS10 INIT

V17 FPGA_DONE DS9 DONE

X-Ref Target - Figure 1-22

NET "FPGA_INIT_B" LOC = "U3";

NET "FPGA_DONE" LOC = "V17";

Figure 1-22: UCF Location Constraints for FPGA INIT and DONE

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 54 55

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Xilinx SP601 User Manual Page 34