SEPTENTRIO AsteRx-m Series, Руководство по оборудованию

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AsteRx-m OEM
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2.6 30-pin Connector
The I/O connector is the Hirose 30 pins DF40HC(3.5)-30DS-0.4V(51) connector.
The mating connector is Hirose DF40C-30DP-0.4V(51) which is available from Digikey
(order number H11622CT-ND).
Pin Description Pin Description
1 Vin: 3.3V +/- 5% 2 Vin: 3.3V +/- 5%
3 GND 4 GND
5 USB_D+ 6 USB_D-
7 USB_VBUS 8 nRST
9 TX1 10 RX1
11 GND 12 1PPS_OUT
13 TX2 14 RX2
15 TX3 16 RX3
17 GND 18 VANT
19 evtA 20 nPDN
21 Reserved 22 GPLED
23 GND 24 SPI1_nCS1
25 Button 26 SPI1_SCK
27 LOGLED 28 SPI1_MOSI
29 GND 30 SPI1_MISO
Conventions:
•
Pin Type: I=Input, O=Output, P=Power, LVTTL=3V3 Low Voltage TTL.
•
LVTTL means VI
L
≤ 0.8V, VI
H
≥ 2.0V, VO
L
≤ 0.4V, VO
H
≥ 2.4V.
•
PU: pulled up
•
The shaded pins are only available from board revision 07. The board revision
can be checked on the board label, e.g. GRB00231000AC
07 xx.
Pin# Name Type Level Description Connection Tips
1 Vin
P 3.3V
+/-5% Main power supply input Both Vin pins (pin#1 and pin#2) must be tied
together.
3 GND Gnd 0 Ground. All ground pins must be connected.
5 USB_D+ I/O USB USB data signal positive D+. Leave unconnected if USB not used.
7
USB_Vbus
I 4.35V
≤V≤
5.25V USB VBUS.
This pin cannot be used to power the receiver!
Leave unconnected if USB not used.
9 TX1 O LVTTL Serial COM 1 transmit line (inactive state is high) Leave unconnected if not used.
11 GND Gnd 0 Ground. All ground pins must be connected.
13 TX2 O LVTTL Serial COM 2 transmit line (inactive state is high) Leave unconnected if not used.
15 TX3 O LVTTL Serial COM 3 transmit line (inactive state is high) Leave unconnected if not used.
17 GND Gnd 0 Ground. All ground pins must be connected.
19
evtA
I, PU LVTTL Event A input (see Firmware User Manual for operation
instructions) Leave unconnected if not used.
21 Reserved Reserved Leave unconnected.
23 GND Gnd 0 Ground. All ground pins must be connected.
25 Button I, PU LVTTL Input can be connected to a push button used to control SD
card logging. Low state is interpreted as “button pressed”.
See section 2.7 for details. Debouncing must be done externally (no
debouncing circuit on board).
Leave unconnected if not used (internally
pulled up with 10k).