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AN4088 Datasheet(PDF) 18 Page - STMicroelectronics |
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AN4088 Datasheet(HTML) 18 Page - STMicroelectronics |
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18 / 71 page  Peripheral migration AN4088 18/71 DocID023072 Rev 3 3.5 DMA interface STM32F1 and STM32F0 series use the same fully compatible DMA controller. The STM32F03x/05x product families use one 5-channel and the STM32F07x family uses one 7-channel DMA controller. The STM32F09x family uses a 7-channel DMA controller and an additional 5-channel DMA2 controller, while the STM32F1 series uses two 5-channel DMA controllers. Each channel is dedicated to managing memory access requests from one or more peripherals. The tables below present the correspondence between the DMA requests of the peripherals in STM32F1 series and STM32F0 series. Table 12. DMA request differences between STM32F1 series and STM32F09x family(1) Peripheral DMA request STM32F1 series STM32 F09x family ADC1 / ADC ADC1 / ADC DMA1_Channel1 DMA1_Channel1 / DMA1_Channel2 / DMA2_Channel5 ADC3 ADC3 DMA2_Channel5 NA DAC DAC_Channel1 / DAC DMA2_Channel3 / DMA1_Channel3(*) DMA1_Channel3 / DMA2_Channel3 SPI1 SPI1_Rx SPI1_Tx DMA1_Channel2 DMA1_Channel3 DMA1_Channel2 / DMA2_Channel3 DMA1_Channel3 / DMA2_Channel4 SPI2 SPI2_Rx SPI2_Tx DMA1_Channel4 DMA1_Channel5 DMA1_Channel4 / DMA1_Channel6 DMA1_Channel5 / DMA1_Channel7 SPI3 SPI3_Rx SPI3_Tx DMA2_Channel1 DMA2_Channel2 NA USART1 USART1_Rx USART1_Tx DMA1_Channel5 DMA1_Channel4 DMA1_Channel1 / DMA1_Channel3 / USART2 USART2_Rx USART2_Tx DMA1_Channe6 DMA1_Channel7 DMA1_Channel1 / DMA1_Channel3 / DMA1_Channel5 / DMA1_Channel6 / DMA2_Channel2 / DMA2_Channel3 DMA1_Channel2 / DMA1_Channel4 / DMA1_Channel7 / DMA2_Channel1 / DMA2_Channel4 / DMA2_Channel5 USART3 USART3_Rx USART3_Tx DMA1_Channe3 DMA1_Channel2 DMA1_Channel1 / DMA1_Channel3 / |
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