Efficient data transfer and application based on STM32 DMA controller
With the development of technology,the demands for physical exploration equipment in physical ex-ploration production are increasingly high,with more and more peripherals connected to microprocessors and an increasing number of tasks to be processed.A significant amount of MCU work is devoted to data transmission,and efficient data transmission is particularly important due to the limited MCU memory.Direct Memory Access(DMA)enables the transmission of large amounts of data directly from peripherals or memory without consu-ming excessive MCU resources.This paper takes the STM32F407VET6 chip as an example,introduces DMA in detail,and applies it in combination with the UART serial port to NTRIP RTK data transmission.Practical ap-plications have demonstrated that reasonable DMA application can effectively enhance system efficiency.