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Digital control board debugging notes (view source)
Revision as of 19:41, 23 July 2009
, 19:41, 23 July 2009→Solution
=== Solution ===
=== Solution ===
The crystal oscillator was replaced with a FOX FXO-HC53 HCMOS oscillator running at 20 Mhz.
The crystal oscillator was replaced with a FOX FXO-HC53 HCMOS oscillator running at 20 Mhz. The output from the oscillator was connected to pin 27 on the FPGA. The load of having both the oscillator and the Ethernet controller connected to the output of the oscillator was to large. The clock input for the Ethernet controller Pin 28 was connected to pin 37 of the FPGA.
Schematic:[[Image:osc.png]]
Schematic:[[Image:osc.png]]