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msp430f4152的烧写问题



jtag口烧写149、417都好好的,4152死活不行,接线除了多加一根test,其他都一样。用MspFet和iar都不行,显示no device。硬件用的是fet430uif。

也试过bsl,同样是149可以,4152不行,硬件上p1.1 p2.2已换成p1.0 p1.1了,串口DTR接RST,RTS接TEST(接TCK也试过),显示同步错误

芯片换了两批,确保是没问题的,编程器也没问题,到底是什么原因啊,快疯掉了!!