Boot Option; Clock Source; Reset Source; Table 4. Boot Related Switches (Boot0 And Boot1) - ST STM3210E-EVAL User Manual

UM0488
5.2

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 BOOT0 and BOOT1 switches.
Switch
BOOT0
BOOT1
5.3

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 its socket for STM32F103ZGT6 microcontroller, it can be
removed from the socket when the internal RC clock is used.
5.4

Reset source

The reset signal of the STM3210E-EVAL Evaluation board is active LOW and the reset
sources include:
•
Reset button B1
•
Debugging tools from the JTAG (CN7) and trace (CN9) connectors
•
Daughterboard from CN11
Jumper
JP19

Table 4. Boot related switches (Boot0 and BOOT1)

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
BOOT1 are set as shown to the right.
STM3210E-EVAL boot from System Memory when BOOT0 and
BOOT1 are set as shown to the right.

Table 5. Reset related jumper

Enables reset of the STM32F103ZGT6 embedded JTAG TAP controller each time a
system reset occurs. JP19 connects the TRST signal from the JTAG connection with the
system reset signal RESET#. The default setting is OFF.
UM0488 Rev 7
Hardware layout and configuration
Boot from
Description
Switch
configuration
Boot 0
0 < > 1
Boot 0
Boot 1
0 < > 1
Boot 0
Boot 1
0 < > 1
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