DMA Connections

Each DMA controller is connected to the rest of the system in a different way.
For memory to memory transfers you should use the DMA controller 2!

On the peripheral interface the following marked peripherals are accessible.
The red peripherals can request a DMA transfer (see table below).

	Stream 0	Stream 1	Stream 2	Stream 3	Stream 4	Stream 5	Stream 6	Stream 7
Channel 0	SPI3 RX		SPI3 RX	SPI2 RX	SPI2 TX	SPI3 TX		SPI3 TX
Channel 1	I2C1 RX		TIM7 Up		TIM7 Up	I2C1 RX	I2C1 TX	I2C1 TX
Channel 2	TIM4 Ch. 1		I2S3 Ext RX	TIM4 Ch. 2	I2S2 Ext TX	I2S3 Ext TX	TIM4 Up	TIM4 Ch. 3
Channel 3	I2S3 Ext RX	TIM2 Up TIM2 Ch. 3	I2C3 RX	I2S2 Ext RX	I2C3 TX	TIM2 Ch. 1	TIM2 Ch. 2 TIM2 Ch. 4	TIM2 Up TIM2 Ch. 4
Channel 4	UART5 RX	USART3 RX	UART4 RX	USART3 TX	UART4 TX	USART2 RX	USART2 TX	UART5 TX
Channel 5	UART8 TX	UART7 TX	TIM3 Ch. Up TIM3 Ch. 4	UART7 RX	TIM3 TRG TIM3 Ch. 1	TIM3 Ch. 2	UART8 RX	TIM3 Ch. 3
Channel 6	TIM5 Up TIM5 Ch. 3	TIM5 TRG TIM5 Ch. 4	TIM5 Ch. 1	TIM5 TRG TIM5 Ch. 4	TIM5 Ch. 2		TIM5 Up
Channel 7		TIM6 Up	I2C2 RX	I2C2 RX	USART3 TX	DAC1	DAC2	I2C2 TX

On the memory interface the following marked peripherals are accessible.

This DMA controller can access the same peripherals on the memory interface as on the peripheral interface.
The red peripherals can request a DMA transfer (see table below).

	Stream 0	Stream 1	Stream 2	Stream 3	Stream 4	Stream 5	Stream 6	Stream 7
Channel 0	ADC1	SAI1 A	TIM8 Ch. 1 TIM8 Ch. 2 TIM8 Ch. 3	SAI1 A	ADC1	SAI1 B	TIM1 Ch. 1 TIM1 Ch. 2 TIM1 Ch. 3
Channel 1		DCMI	ADC2	ADC2	SAI1 B	SPI6 TX	SPI6 RX	DCMI
Channel 2	ADC3	ADC3		SPI5 RX	SPI5 TX	CRYP Out	CRYP In	HASH In
Channel 3	SPI1 RX		SPI1 RX	SPI1 TX		SPI1 TX
Channel 4	SPI4 RX	SPI4 TX	USART1 RX	SDIO		USART1 RX	SDIO	USART1 TX
Channel 5		USART6 RX	USART6 RX	SPI4 RX	SPI4 TX		USART6 TX	USART6 TX
Channel 6	TIM1 TRG	TIM1 Ch. 1	TIM1 Ch. 2	TIM1 Ch. 1	TIM1 TRG TIM1 COM TIM1 Ch. 4	TIM1 Up	TIM1 Ch. 3
Channel 7		TIM8 Up	TIM8 Ch. 1	TIM8 Ch. 2	TIM8 Ch. 3	SPI5 RX	SPI5 TX	TIM8 TRG TIM8 COM TIM8 Ch. 4

DMA Connections

DMA controller 1

Peripheral Interface

Memory Interface

DMA controller 2

Peripheral/Memory Interface

CT Board