Work Status Indicator Lights
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Chapter 10 Work Status Indicator Lights
10.1 Indicate Error Code
10.1.1 Work Status Indicator Light
Working status of MPC6575 is indicated through the 8 LED indicator lights in MC card and 4
indicator lights in CPU card. Please refer to Chapter 4 to learn the position of the indicator lights.
Indicator lights in CPU card:
D1: indicate the working status of USB slave interface. It’s normally flash green quickly;
D2: indicate the working status of USB slave interface. It’s normally flash green slowly;
D3: indicate the operating status. It keeps shining green when processing graphics or
downloading data from USB stick, and stops shining when the processing or downloading is
stopped.
D4: No use
Indicator lights in MC card:
D1: When MPC6575 is powered on and started, D1 keeps shining;
D2: indicate pulse output status of Z axis. D2 keeps shining when Z axis is outputting pulses,
and stops shining when outputting stopped.
D3: indicate pulse output status of Y axis. D3 keeps shining when Y axis is outputting pulses,
and stops shining when outputting stopped.
D4: indicate pulse output status of X axi. D4 keeps shining when X axis is outputting pulses, and
stops shining when outputting stopped.
D8: When the CPU mainloop of CPU card works normally, D8 flashes.
D7: When PAD03 is communicating with the MPC6575, D7 flashes.
10.1.2 Error Code Description
If there’s any system error, D1 to D8 indicator lights in MC card will indicate the error code as
following coding rules:
D1 to D8 indicate an 8-bit status and form 1-byte, i.e.: when D8, D7 and D6 keep shining, and
the other indicator lights are off, the corresponding error code is 0xe0; when D1 to D4 are off, D5 to
D8 are shining, the corresponding error code is 0xf0.
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