AN2606 datasheet(20/155 Pages) STMICROELECTRONICS

Part #	AN2606

Description	STM32 microcontroller system memory boot mode

PDF	155 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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General bootloader description

AN2606

20/155

DocID13801 Rev 21

To use the I2C bootloader, connect the host (master) and the desired I2Cx interface (slave)

together via the data (SDA) and clock (SCL) pins. A 1.8 KOhm pull-up resistor has to be

connected to both (SDA) and (SCL) lines.

Figure 3. I2C Connection

Note:

+V typically 3.3 V.This value depends on the application and the used hardware.

To use the SPI bootloader, connect the host (master) and the desired SPIx interface (slave)

together via the (MOSI), (MISO) and (SCK) pins. The (NSS) pin must be connected to

(GND). A pull-down resistor should be connected to the (SCK) line.

Figure 4. SPI Connection

Note:

R value typically 10KOhm. This value depends on the application and the used hardware.

To use the CAN interface, the host has to be connected to the (RX) and (TX) pins of the

desired CANx interface via CAN transceiver and a serial cable. A 120 Ohm resistor should

be added as terminating resistor.

AN2606 Datasheet(PDF) 20 Page - STMicroelectronics