Boot Option; Clock Source; Reset Source - STMicroelectronics STM3210E-EVAL User Manual

Hardware layout and configuration
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Boot option

The STM3210E-EVAL evaluation board can boot from:
Embedded user Flash
System memory with boot loader for ISP
Embedded SRAM for debugging
The boot option is configured by setting the switches BOOT0 and BOOT1.
Table 2. Boot related switches
Switch
STM3210E-EVAL boots from User Flash when BOOT0 is set as shown
to the right. BOOT1 is not required in this configuration.
(Default setting)
STM3210E-EVAL boot from Embedded SRAM when BOOT0 and
BOOT0
BOOT1 are set as shown to the right.
BOOT1
STM3210E-EVAL boot from System Memory when BOOT0 and
BOOT1 are set as shown to the right.

Clock source

Two clock sources are available on the STM3210E-EVAL evaluation board for STM32F103
and RTC.
X2, 32KHz crystal for embedded RTC.
X1, 8MHz crystal with socket for STM32F103ZGT6 microcontroller, it can be removed
from socket when internal RC clock is used.

Reset source

The reset signal of the STM3210E-EVAL evaluation board is low active and the reset
sources include:
Reset button B1
Debugging tools from JTAG connector CN7 and trace connector CN9
Daughterboard from CN11
Table 3. Reset related jumper
Jumper
Enables reset of the STM32F103ZGT6 embedded JTAG TAP controller each time a
JP19 system reset occurs. JP19 connects the TRST signal from the JTAG connection with the
system reset signal RESET#. Default setting: not fitted
Boot from
Description
Doc ID 14220 Rev 5
UM0488
Switch
configuration
Boot 0
0 < > 1
Boot 0
Boot 1
0 < > 1
Boot 0
Boot 1
0 < > 1