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我想咨询一下TMS320F28P55x 128Pin的这个芯片的上电顺序是先VDDIO 然后再 VDD 吗 ？也就是3.3V先上电之后在1.2V吗
您好，
已经收到了您的案例，调查需要些时间，感谢您的耐心等待。
顺序是正确的，先VDDIO 然后再 VDD。
具体可以参考数据手册的6.14.1.4.3 Supply Pins Power Sequence
