大家好，
我的板是3.3V供电(5V也试过），好像无法DEBUG。提示如下，请问是什么问题呢？
PIC16F505。
Connecting to MPLAB PICkit 3...
Currently loaded firmware on PICkit 3
Firmware Suite Version.....01.43.35
Firmware type..............Baseline
Target voltage detected
Target has invalid calibration data (0x00).
The following memory area(s) will be programmed:
program memory: start address = 0x0, end address = 0x3ff
configuration memory
Device Erased...
Programming...
Failed to program device
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楼主
