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Digital control board debugging notes (view source)
Revision as of 19:07, 23 July 2009
, 19:07, 23 July 2009→Cause
=== Cause ===
=== Cause ===
FPGA pin 5 (labelled SPI) is connected to DIN on the ADC, and DOUT of the temperature sensor. FPGA pin 96 (labelled AD7928/DOUT) is connected to DOUT on the ADC. SPI designates that all slave device DOUT traces be connected together. Chip select and HiZ logic are used to prevent devices from fighting over the signal line.
FPGA pin 5 (labelled SPI) is connected to DIN on the ADC, and DOUT of the temperature sensor. FPGA pin 97 (labelled AD7928/DOUT) is connected to DOUT on the ADC. SPI designates that all slave device DOUT traces be connected together. Chip select and HiZ logic are used to prevent devices from fighting over the signal line.
=== Solution ===
=== Solution ===