Broadcom
- 8 -
ACPL-C799 Evaluation Kit Board
User Guide
PCB Modifications
PCB Modifications
1.
Vdd1 is supplied from the 5V/5V isolated dc/dc converter. You can also supply Vdd1 from a 9V battery through the
L78L05ACUTR LDO regulator. To do that, ensure that R45 is disconnected.
2.
The ACPL-C799 Vdd2 is supplied from the 3.3V regulator. If you need to check the performance or troubleshoot the ACPL-C799
component only at Vdd2=5V, you can mount a 0
R47 resistor. In this instance, the Vdd2 is supplied directly from the USB
power, 5VCC. Note that you have to remove R18, R19, and R20 because the FPGA I/O pins may not be able to take 5V.
3.
The green LED1 signals the detection of ACPL-C799.
4.
LED2, LED3, and LED4 are not defined. If you want to modify the FPG, you can use these LED indicators for other functions.
5.
The H1 and H2 connector pins are physically connected to the FPGA. If you want to modify the FPGA, you can make use of
these connector pins for input (I/P) or input/output (I/O).
Troubleshooting
1.
After switching on SW1, if the green DONE LED does not come on, reset the FPGA by pressing
SW2
once. If the problem still
does not go away, perform a full board reset by pressing
SW3
once.
2.
Each evalboard sent to the customer is functionally checked and tested. If the problem does not go away, consult a Broadcom
Application Engineer. If need be, Broadcom will send a new board.
Содержание ACPL-C799
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Страница 10: ...Broadcom 10 ACPL C799 Evaluation Kit Board User Guide Appendix Schematic Diagram...
Страница 11: ...Broadcom 11 ACPL C799 Evaluation Kit Board User Guide Appendix...
Страница 12: ...Broadcom 12 ACPL C799 Evaluation Kit Board User Guide Appendix...
Страница 13: ...Broadcom 13 ACPL C799 Evaluation Kit Board User Guide Appendix PCB Layout...
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