DMA (Direct Memory Access) is a mechanism for fast data transfer. Its advantage is that once the controller is initialized and data transfer begins, DMA can be separated from the CPU and complete data
[font=微软雅黑][size=3]Today is the first working day of 2019. A new year, a new beginning, a new atmosphere! [/size][/font][font=微软雅黑][size=3] [/size][/font][font=微软雅黑][size=3]We are no exception. [/size
[i=s]This post was last edited by skyworth74 on 2022-10-21 23:07[/i]1. Brief introduction of the work (100-200 words)(Design name, work photo, function introduction, etc.)
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1. Select pin function -- PxSEL, PxSEL2PxSEL2 PxSEL pin function0 0 Used as IO port0 1 Used as the first function pin1 0 Reserved, refer to the manual of the specific model1 1 Used as the second funct