WM8510-EV1M
w
Rev 1.1 April 2006
40
APPENDICES
USB INTERFACE TROUBLESHOOTING
MESSAGE BOX EXPLANATIONS - COMMUNICATIONS ISSUES
This section describes the meaning of any message boxes displayed by the WM8510 control
software which indicate that a successful operation did not take place.
“2-WIRE DEVICE FAILED TO ACKNOWLEDGE ADDRESS”
Check the hardware settings on the WM8510 Evaluation Board. For example, removable links may
be connected to some of the control interface pins on the Wolfson Device to allow alternate
functions such as GPIO, etc. It is also a good idea to check the power supplies to the WM8510
device – a WM8510 device which is powered off may not acknowledge 2 wire communications.
“MORE THAN 1 WOLFSON USB BOARD DETECTED…”
It is only possible to access a maximum of 1 Wolfson evaluation board (of any device type) with a
USB interface from any PC.
“WOLFSON EVAL BOARD NOT CONNECTED…”
Please consult the section “USB Communications issues”
Содержание WM8510-EV1M
Страница 1: ...WM8510 EV1M Evaluation Board User Handbook Rev 1 1...
Страница 8: ...WM8510 EV1M w Rev 1 1 April 2006 8 INTERFACES Figure 1 Interfaces...
Страница 14: ...WM8510 EV1M w Rev 1 1 April 2006 14 WM8510 BLOCK DIAGRAM Figure 4 WM8510 Block Diagram...
Страница 29: ...WM8510 EV1M w Rev 1 1 April 2006 29 Figure 21 USB Controller Figure 22 Control Interface Level Shift...
Страница 30: ...WM8510 EV1M w Rev 1 1 April 2006 30 Figure 23 Audio Interface Level Shift Figure 24 Analogue Input...
Страница 31: ...WM8510 EV1M w Rev 1 1 April 2006 31 Figure 25 Analogue Output...
Страница 32: ...WM8510 EV1M w Rev 1 1 April 2006 32 Figure 26 WM8510...
Страница 33: ...WM8510 EV1M w Rev 1 1 April 2006 33 Figure 27 USB Power Supply Figure 28 External Power Supplies...
Страница 34: ...WM8510 EV1M w Rev 1 1 April 2006 34 PCB LAYOUT Figure 29 Silkscreen Top...
Страница 35: ...WM8510 EV1M w Rev 1 1 April 2006 35 Figure 30 Top Layer...
Страница 36: ...WM8510 EV1M w Rev 1 1 April 2006 36 Figure 31 Bottom Layer...
