10.3 Indicator Lights (LEDs)
The top of MPLAB ICE 4 unit has two light pipes butted against to each other, each illuminated by an LED.
The expected start-up sequence for the debugger is:
- Purple - steady on for approximately 3 seconds.
- Blue - flashing for approximately 2 seconds while the debugger runs a power-on self-test.
- Blue - steady on. The debugger is ready.
The following table advises how to read the indicator lights.
LED 1 | LED 2 | Description |
---|---|---|
Normal Modes | ||
Blue | Blue | Power is connected; debugger in standby; Network ready to connect |
White | Blue | Network connected |
White, slow blink | Blue | MPLAB X IDE/MPLAB IPE has initiated communication with ICE 4 over the network |
Red | Blue | Network connection failure/error |
Orange | Blue | Power target circuit from ICE 4 checked |
Green | Blue | Power target circuit from ICE 4 unchecked |
Green, slow blink | Blue | DGI connected |
Purple | Purple | Bootloader is running |
Yellow | Yellow | Debugger is busy |
Red | Red | An operation has failed |
Bootloader Errors | ||
Purple | Red, slow blink | Problem accessing the debugger’s serial EEPROM |
Purple | Red, fast blink | Bootloader API commands cannot be processed |
White, fast blink | White, fast blink | A runtime exception occurred in the tool firmware |