MPLAB PICkit 4 Help Previous Next


Operation : Target Communication Connections : Target Powered
Target Powered
In the following descriptions, only three lines are active to core debugger operation: pins 1 (Vpp/MCLR), 5 (PGC) and 4 (PGD). Pins 2 (Vdd) and 3 (Vss) are shown on Figure: Standard Connection To Target Circuitry for completeness. MPLAB PICkit 4 has two configurations for powering the target device: internal debugger and external target power.
The recommended source of power is external and derived from the target application (see Figure: Target Powered from External Source). In this configuration, target Vdd is sensed by the debugger to allow level translation for the target low voltage operation. If the debugger does not sense voltage on its Vdd line (pin 2 of the interface connector), it will not operate.
Figure: Target Powered from External Source
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Help Updated: 2019-09-24 09:36:22Z
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