Ublox EVK-ANNA-B4, Руководство пользователя, Страница: 25 / 42

UBX-21008123 - R02 Interfaces and peripherals Page 25 of 42
C1-Public
5 Interfaces and peripherals
5.1 Buttons and LEDs
Figure 14: Position of the push buttons and LEDs on the evaluation board
Annotation Function Description
SW0 Reset button Connected directly to the ANNA RESET_N pin.
SW1 User button Push button for application use. Connected directly to the ANNA SWITCH_1 (IO_32) pin
SW2 User button Push button for application use. Connected directly to the ANNA SWITCH_2 (IO_40) pin.
Table 9: EVK-ANNA-B4 buttons
Annotation Function Description
DS1 CTS LED Connected to the ANNA UART_CTS (IO_37) pin through pin header connectorJ9
DS2 RTS LED Connected to the ANNA UART_RTS (IO_36) pin through pin header connector J9
DS3 Interface MCU LED Blinks on USB enumeration and activity, lit when the Interface MCU is connected
through USB
DS4 Interface MCU LED Error LED
DS5 DTR LED Connected to the ANNA UART_DTR (IO_27) pin on pin header connector J9
DS6 DSR LED Connected to the ANNA UART_DSR (IO_28) pin on pin header connector J9
DS7 RXD LED Connected to the ANNA UART_RXD (IO_20) pin via pin header connector J9
DS8 TXD LED Connected to the ANNA UART_TXD (IO_19) pin on pin header connector J9
DS9 Status LED Connected to the ANNA RED (IO_31), GREEN (IO_32) and BLUE (IO_33) pins on pin
header connector J19. The Status LED shows the status for the
u-connect applications.
☞
See also the ANNA-B412 data sheet [ 4 ].
DS10 Power LED Connected to 3V3 power net.
Table 10: EVK-ANNA-B4 LED indicators
SW0
SW1
SW2
DS6 DS5
DS1 DS2
DS7 DS8 DS9
DS3
DS4
DS10
Buttons and LEDs
SW0 Reset
User button
User button
SW1
SW2
DS3
Interface MCU LED
DS10 Power LED
Interface MCU LED
Status LED
DS4
TXD LED
RXD LED
RTS LED
CTS LED
DTR LED
DSR LED
DS9
DS8
DS7
DS2
DS1
DS5
DS6