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In RVT2, the layout of the RVT2 front panel is as shown in the following figure:
The components comprise LEDs and trace probe connectors.
The LEDs on the front panel of the RVT2 unit have the following functions:
The PWR LED indicates that the RVT2 unit is powered up. This is always lit when the unit is powered from its own external power supply. When RVT2 is powered by RVI, the Power LED is lit only when RVI is initializing the RVT2 unit.
The BUS LED indicates module initialization and RVI expansion bus power. It lights up when RVI is initializing the RVT unit, and remains lit while the RVI expansion bus is powered. The BUS LED flashes on a module connected to RVI through the expansion bus if an error is detected in trying either to identify the module or to provide power to it. Modules might require more power than RVI can provide, in which case the module must be separately powered. If the module is separately powered and this LED flashes, it indicates a problem in identifying the module.
The DATA LED indicates that the RVT2 module has data in its buffer.
The FULL LED indicates that the RVT2 module data buffer is full.
The TRC LED indicates that the RVT2 module has enabled the buffer for capture.
The TRIG LED indicates that the RVT2 module has triggered.
The OVR LED indicates that the streaming trace has overrun the available USB bandwidth. When this occurs, this LED flashes.
The TGT LED indicates if there is a problem with the target. If the target present line is low, or if there is no clock, this LED flashes.
ARM® RVI™ and RVT™ System and Interface Design Reference: