Question

把PICKIT3和MPLAB X软件，下载时出现错误，请问怎么办？谢谢。

BUILD SUCCESSFUL (total time: 25s)
Loading code from F:/Program/MicroChip/DevelopmentBoard/PICDEM2PlusPIC18F4520_1.X/dist/default/production/PICDEM2PlusPIC18F4520_1.X.production.hex...
Loading symbols from F:/Program/MicroChip/DevelopmentBoard/PICDEM2PlusPIC18F4520_1.X/dist/default/production/PICDEM2PlusPIC18F4520_1.X.production.cof...
Loading completed
Connecting to programmer...

The programmer could not be started: Could not connect to tool hardware: PICkit3PlatformTool, com.microchip.mplab.mdbcore.PICKit3Tool.PICkit3DbgToolManager

Answer 1

原因是需要调用指定的PICKIT3固件，在项目属性中点击PICkit 3中的Option categories: Firmware，取消Use LatestFirmware前面的勾选，在下方Firmware File中选择安装路径中的PICKIT3.jar，以MPLAB X IDE v3.35及windows 7 x86环境为例，位置在C:\Program Files/Microchip/MPLABX/v3.35/mplab_ide/mplablibs/modules/ext/PICKIT3.jar/PK3FW_014335.jam。断开目标板，重启编译环境，点击编程，等装好固件提示
“找不到目标器件。”时，连接目标板可正常使用。

Answer 2

可能你下载工具 没有选对 要选progrmer --> pickit3 然后确保连接上了