看了NuMicro ISP Programming Tool user's Guide,其中里面有说到Two ISP types are supported, „ISP through COM port‟ and „ISP through USB‟. For either of these two types, the configuration bit „CBS‟ needs to be configured as Boot from LDROM and some specific I/O pin needs to be tied to ground.
其中最后一句说某些特殊的IO要接到地,到底说哪些特殊的IO需要接地貌似都没有说明,本人没用过这芯片,希望用过的大侠能指点一下 |