AN2586 Datasheet, PDF (22/28 Pages) STMicroelectronics – Getting started with STM32F10xxx hardware development

Reference design
6
Reference design
AN2586
6.1
6.1.1
6.1.2
6.1.3
Note:
6.1.4
Note:
6.1.5
Description
The reference design shown in Figure 14, is based on the STM32F103ZE(T6), a highly
integrated microcontroller running at 72 MHz, that combines the new Cortex^™-M3 32-bit
RISC CPU core with 512 Kbytes of embedded Flash memory and up to 64 Kbytes of high-
speed SRAM.
This reference design can be tailored to any other STM32F10xxx device with different
package, using the pins correspondence given in Table 6: Reference connection for all
packages.
Clock
Two clock sources are used for the microcontroller:
● LSE: X1– 32.768 kHz crystal for the embedded RTC
● HSE: X2– 8 MHz crystal for the STM32F10xxx microcontroller
Refer to Section 2: Clocks on page 11.
Reset
The reset signal in Figure 14 is active low. The reset sources include:
● Reset button (B1)
● Debugging tools via the connector CN1
Refer to Section 1.3: Reset and power supply supervisor on page 8.
Boot mode
The boot option is configured by setting switches SW2 (Boot 0) and SW1 (Boot 1). Refer to
Section 3: Boot configuration on page 15.
In low-power mode (more specially in Standby mode) the boot mode is mandatory to be
able to connect to tools (the device should boot from the SRAM).
SWJ interface
The reference design shows the connection between the STM32F10xxx and a standard
JTAG connector. Refer to Section 4: Debug management on page 17.
It is recommended to connect the reset pins so as to be able to reset the application from
the tools.
Power supply
Refer to Section 1: Power supplies on page 6.
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Doc ID 13675 Rev 7