zhangyu198530 发表于 2014-9-3 10:10 
我现在有个问题想请教香版主。使用ADC1，Regular通道的顺序为Ch0,Ch1,Ch2,Ch3，启动Scan模式，并启动DMA ...
我觉得应该是一个通道转换完成了就会触发对应的DMA传输。
F1的手册上说：
Since converted regular channels value are stored in a unique data register, it is necessary
to use DMA for conversion of more than one regular channel. This avoids the loss of data
already stored in the ADC_DR register.
Only the end of conversion of a regular channel generates a DMA request, which allows the
transfer of its converted data from the ADC_DR register to the destination location selected
by the user. |
