![]() Development Board: Wildfire Challenger STM32H743IIT6.Because both the stm32 serial RDR and TDR registers are 8-bit valid, we often need to define the transmission protocol (such as frame header, frame length, frame CMD, data frame, frame tail, and so on) in a frame data.We want to receive one frame at a time and decode it.The above tasks can be effectively accomplished by using DMA+Serial idle interrupt. ![]() This chapter will solve this problem, sometimes data transfer between devices is required. The general use of serial ports has been described in the previous chapter. Serial DMA idle interrupt variable-length send and receive with custom packaging and unpacking Preface
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