Analog Devices ADZS-U4050LF-EZKIT, Руководство пользователя

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UG-1163 ADZS-U4050LF-EZKIT User Guide
Rev. 0 | Page 6 of 31
Reset, Wake, Boot, and General-Purpose Push-Buttons
The ADZS-U4050LF-EZKIT board has five push-buttons (see
Figure 4) responsible for different operations.

The boot mode select switch (SW1) determines the boot
mode of the processor. By default, the processor boots
from the internal flash memory. When pressed, the UART
download mode is triggered. For full details, see the
ADuCM4050 EZ-Kit® Manual , Revision 1.0 for further
information, which can be found in the Documentation
section of the ADuCM4050 product page (this manual is
included in the downloadable board support package for
the
ADuCM4050 ).

The reset switch (SW2) resets the ADuCM4050 processor.

The wake switch (SW3) is connected to the processor wake
signals, and is used to wake up the processor during low
power modes. Depending on the configuration of JP10, the
different external interrupts to wake up the
microcontroller.

The PB1 switch (SW4) is a general-purpose switch connected
to general-purpose input/output (GPIO) P2_09.

The PB2 switch (SW5) is a general-purpose switch connected
to GPIO P2_06.

Table 4 shows which pins must be shorted on JP10 to choose
which external interrupt is connected to the WAKE switch.

The PB1 switch (SW4) is a general-purpose switch connected
to general-purpose input/output (GPIO) P2_09.

The PB2 switch (SW5) is a general-purpose switch connected
to GPIO P2_06.
Table 4. External Interrupt Choice for the WAKE Switch
Pin Number Signal Name
1, 2 SYS_WAKE0
3, 4 SYS_WAKE1
5, 6 SYS_WAKE2
7, 8 SYS_WAKE3
160
76-
0
04
Figure 4. ADZS-U4050LF-EZKIT Push-Buttons Located Near the LEDs