Vectornav VN-200, User Manual

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VN-200 User Manual UM004
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Table 1 – VN-200 SMD Pin Assignments
Pin # Pin Name Description
1 GND Ground.
2 GND Ground.
3 GND Ground.
4 GND Ground.
5 TX2 Serial UART #2 data output. (sensor)
6 RX2 Serial UART #2 data input. (sensor)
7 TARE/RESTORE
Normally used to zero (tare) the attitude.
To tare, pulse high for at least 1 μs. During power on or device reset, holding
this pin high will cause the module to restore its default factory settings. As a
result, the pin cannot be used for tare until at least 5 ms after a
power on or reset. Internally held low with 10k resistor.
8 NC Not used.
9 SYNC_OUT Time synchronization output signal. See Section 5.12 for more details.
10 VIN 3.2 - 5.5 V input.
11 ENABLE
Leave high for normal operation. Pull low to enter sleep mode. Internally
pulled high with pull-up resistor.
12 TX1 Serial UART #1 data output. (sensor)
13 RX1 Serial UART #1 data input. (sensor)
14 RESV Reserved for future use. Leave pin floating.
15 SYNC_IN_2
Reserved for future use. For backwards compatibility with older hardware
revisions this pin can be configured in software to operate as the time
synchronization input signal. For new designs it is recommended that
SYNC_IN (pin 22) is used instead. See Section 5.12 for more details.
16 SPI_SCK SPI clock.
17 SPI_MOSI SPI input.
18 GND Ground.
19 SPI_MISO SPI output.
20 REPRGM
Used to reprogram the module. Must be left floating or set to low for normal
operation. Pull high on startup to set the VN-200 in reprogram mode.
Internally held low with 10k resistor.
21 NRST
Microcontroller reset line. Pull low for > 20 μs to reset MCU. Internally
pulled high with 10k.
22 SYNC_IN Time synchronization input signal. See Section 5.12 for more details.
23 SPI_CS SPI slave select.
24 GPS_PPS
GPS time pulse. One pulse per second, synchronized at rising edge. Pulse
width is 100 ms.
25 VBAT Optional GPS RTC battery backup. 1.4 V – 3.6 V input.
26 RESV Reserved for future use.
27 RESV Reserved for future use.
28 GND Ground.
29 GPS_RF
Optional GPS RF input for passive antenna. The surface-mount IPX (U.FL)
connector should be used with an active GPS antenna.
30 GND Ground.