AN4661 datasheet(20/33 Pages) STMICROELECTRONICS

Part #	AN4661

Description	This application note is intended for system designers

PDF	33 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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Boot configuration

AN4661

20/33

DocID027559 Rev 1

4.2

Boot pin connection

Figure 12 shows the external connection required to select the boot memory of the

STM32F756xx.

Figure 12. Boot mode selection implementation example

1. Resistor values are given only as a typical example.

4.3

System bootloader mode

The embedded bootloader code is located in system memory. It is programmed by ST

during production. It is used to reprogram the Flash memory using one of the following serial

interfaces.

Table 4 shows the supported communication peripherals by the system bootloader.

Table 4. STM32F746xx/STM32F756xx bootloader communication peripherals

Bootloader peripherals

STM32F746xx/STM32F756xx

DFU

USB OTG FS (PA11 / PA12) in device mode

USART1

PA9 / PA10

USART3

PB10 / PB11 and PC10 / PC11

CAN2

PB5 / PB13

I2C1

PB6 / PB9

I2C2

PF0 / PF1

I2C3

PA8 / PC9

AN4661 Datasheet(PDF) 20 Page - STMicroelectronics