如题 急用,最好是F4的。QAQ
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自己写了驱动,在调整参考电压输入的时候想使用内部参考电压,
手册上写的REFMUX寄存器的5-3位配置差分输入的POSITIVE输入,
当其被配置为000时是:
Internal 2.5 V reference - P (default) |
2-0位配置为000时NEGATIVE输入为
Internal 2.5 V reference - N (default) |
想问问这是什么意思?