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AN4031 Datasheet(PDF) 1 Page - STMicroelectronics |
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1 / 36 page  February 2014 DocID022648 Rev 1 1/36 AN4031 Application note Using the STM32F2 and STM32F4 DMA controller Introduction This application note describes how to use the STM32F2xx and STM32F4xx direct memory access (DMA) controller. The STM32F2xx/F4xx DMA controller features, the system architecture, the multi-layer bus matrix and the memory system contribute to provide a high data bandwidth and to develop very low latency response-time software. This application note also describes some tips and tricks to allow developers to take full advantage of these features and ensure correct response times for different peripherals and subsystems. STM32F2xx and STM32F4xx are referred to as “STM32F2/F4 devices” and the DMA controller as “DMA” throughout the document. This application note applies to the products listed in Table 1. This application note should be read in conjunction with the STM32F2/F4 reference manuals (RM0031, RM0090 and RM0368). Table 1. Applicable products Type Part numbers Microcontrollers STM32F2xx (STM32F205, STM32F207, STM32F215, STM32F217) STM32F4xx (STM32F401, STM32F405, STM32F407, STM32F415, STM32F417, STM32F427, STM32F429, STM32F437, STM32F439) www.st.com |
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