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TMS320C6748 供电问题



最近有两块新板子(没烧录过程序),第一次上电,C6748的1.8V供电都被拉高到3V,不知道怎么回事?测了1.8V网络与GND和3.3V网络的电阻都是正常的,未出现短路。不知道有没有人遇到和我同样的问题。

之前有一块板子,第一次上电,电源正常;在线仿真后1.8V电源也被拉高到3V。