AN4206 datasheet(28/34 Pages) STMICROELECTRONICS

28 / 34 page

Reference design

AN4206

28/34

DocID023944 Rev 4

Reference design

7.1

Description

The reference design shown in Figure 13, is based on the STM32F3xx, a highly integrated

microcontroller running at 72 MHz, that combines the Cortex®-M4 FPU 32-bit RISC CPU

core with embedded Flash and SRAM memories.

This reference design can be tailored to any other STM32F3xx device with a different

package, using the pins correspondence given in the corresponding datasheet.

7.1.1

Clock

Two clock sources are used by the microcontroller:



LSE: X1– 32.768 kHz crystal for the embedded RTC



HSE: X2– 8 MHz crystal for the STM32F3xx microcontroller

Refer to Section 2: Clocks on page 16.

7.1.2

Reset

The reset signal in Figure 13 is active low. The reset sources include:



Reset button (B1)



Debugging tools via the connector CN1.

Refer to Section 1.2: Reset and power supply supervisor on page 13.

7.1.3

Boot mode

The boot option is configured by setting switch SW1 (Boot 0) and option bit nBoot1. Refer to

Section 3: Boot configuration on page 19.

7.1.4

SWJ interface

The reference design shows the connection between the STM32F3xx and a standard JTAG

connector. Refer to Section 4: Debug management on page 20.

Note:

It is recommended to connect the reset pins so as to be able to reset the application from

the development tools.

7.1.5

Power supply

Refer to Section 1: Power supplies on page 6.

7.1.6

Pinouts and pin descriptions

Please refer the corresponding STM32F3xx datasheet available on ww.st.com for the pinout

and pin description.

AN4206 датащи(PDF) 28 Page - STMicroelectronics

AN4206 датащи(HTML) 28 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

датащи скачать

ссылки URL