EVK-F9P-00 - User guide
UBX-22038408 - R01
Device description
Page 10 of 23
C1- Public
•
SPI – In this selection the EVK operates only with the SPI interface. The RS232 (DB9) port is
switched off.
4.3.7
Pin header
This 14-pin test-connector provides additional functionality to the EVK, allowing access to the
interface pins and an ability to measure the current used by the ZED-F9P module. All pins are ESD
protected.
Pin no. Name
I/O Level
Description
14
V5_IN
I
4.75 - 5.25 V Power input – can be used instead of USB
13
GND
-
-
Common ground pin
12
CUR GPS1
O
5.0 V
Supply current measurement (Module current consumption) node 1. Current is
measured over a 1
Ω
1% tolerance resistor between pins 12 and 11. Pin 12
(CUR_GPS1) is at higher potential.
11
CUR GPS2
O
5.0 V
Supply current measurement (Module current consumption) node 2. See
description for pin 12.
10
TxD 2
O
-
Correction UART output
9
RxD 2
I
Correction UART input
8
TIMEPULSE 1 O
3.3V
Output signal for the timepulse1 signal
7
EXTINT
I
3.3 V
External interrupt or time-mark input (connected directly to the module pins)
6
RTK status
O
3.3 V
RTK status:
0 = RTK/PPP-RTK fixed
blinking = receiving and using corrections
1 = no corrections
5
SDA / CS
I/O
3.3 V
If slide switch on I2C, the DDC interface is selected; Function: data input /
output
If slide switch on SPI, the SPI interface is selected; chip select input – LOW
ACTIVE
4
SCL / CLK
I/O
3.3 V
Clock input / output (signals are pulled up and then straight to the module)
3
TxD / MISO
O
3.3 V
If slide switch on I2C, the DDC interface is selected / UART TxD (3.3 V level)
If slide switch on SPI, the SPI interface is selected; Master in Slave out (MISO)
2
RxD / MOSI
I
3.3 V
If slide switch on I2C, the DDC interface is selected / UART RxD (3.3V Level)
If slide switch on SPI, the SPI interface is selected; Master out Slave in (MOSI)
1
TX_READY
O
3.3 V
TX_Buffer full and ready for TX of data
Table 5: Connector pin description for EVK-F9P-00 (pins numbered from right to left on the front panel)
For accurate measurements, use a max 1 m cable.
shows an example of a power supply
connected to the test connector by using standard adapter cables from the manufacturer
Hirschmann.
shows an example for overall current measurement. When connecting the 3.3 V
digital interfaces RS232, SPI and DDC to your application, use a max 25 cm cable.
Figure 3: Example 5V DC power supply
V5_IN
GND
GND
V5_IN
Hirschmann
Part Nr.: 934160100
