已经按照16F19XX的DATASHEET里的说明加了电压保护电路,可为什么打开项目后还是提示ICDWarn0068: This device has a VPP(max) below the minimum ICD2 VPP level of 12V. Please ensure that protection for MCLR is in place?
测得ICD 2的MCLR引脚电压为0V,但在MPLAB IDE的ICD2 Settings里进行自检都是Pass,而且Power项里显示Target Vdd为4.77,Target Vpp与MPLAB ICD2 Vpp都是11V左右。这是怎么回事啊? |