unicore UFirebirdII-UC6580 User manual
INSTALLATION AND OPERATION
USER MANUAL
WWW.UNICORECOMM.COM
Copyright© 2009-2023, Unicore Communications, Inc.
Data subject to change without notice.
UFirebirdII-UC6580
Evaluation Kit
UC6580 EVK User Manual
i
Revision History
Version
Revision History
Date
R1.0
First release
Apr.,2023
ii
Legal Right Notice
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in part.
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UC6580 EVK User Manual
iii
Foreword
This document describes the use of the UC6580 evaluation kit (EVK) for the function
and performance test of the chip.
Target Readers
This document applies to technicians who are familiar with GNSS receivers.
I
Content
1Overview ................................................................................................1
2EVK Introduction ....................................................................................2
2.1 Block Diagram..................................................................................................................2
2.2 Power Supply ...................................................................................................................3
2.3 Configuration ...................................................................................................................3
3Interface.................................................................................................4
3.1 USB Interface ...................................................................................................................5
3.2 Antenna Interface ............................................................................................................5
3.3 Button ...............................................................................................................................5
3.4 Communication Mode Selection ....................................................................................5
3.5 Status Indicator ...............................................................................................................6
3.6 GNSS Power Supply Interface ........................................................................................6
4Positioning and Power Consumption Test...............................................7
4.1 Positioning Test ...............................................................................................................7
4.2 Power Consumption Test................................................................................................8
4.2.1 Power Consumption in Running Mode.......................................................................8
4.2.2 Power Consumption in V_BACK Mode .....................................................................10
5Firmware Upgrade ................................................................................11
6Remark.................................................................................................11
UC6580 EVK User Manual
UC-08-C43 EN R1.0 Overview 1
1Overview
UC6580 evaluation kit (EVK) has two parts: bottom board and GNSS adapter. The
bottom board connects to the GNSS adapter via the connector. The EVK is mainly used
in the function and performance test of the chip UC6580 for the convenience of the
users.
2
1
Figure 1-1 UC6580 EVK
(1)
Bottom Board
(2)
GNSS Adapter
2 EVK Introduction UC-08-C43 EN R1.0
2EVK Introduction
2.1 Block Diagram
GNSS
Connector
DC/DC
(LM22679)
5V
LDO
(SGM2037)
3.8V
3.3V Backup
Battery
VCC V_BCKP
USB To UART
(FT232RL)
UART1
USB2-TypeC USB To UART
(FT232RL)UART2
USB1 UART
USB2 UART2
SPI
IIC_Slave
Test Point
RST Button
SPEED
FWD
GPIO
FB2S-EVK Bottom Board
GNSS_RST
USB1-TypeC
JTAG
Figure 2-1 Block Diagram of Bottom Board
GNSS
Connector
FB2S
(UC6580)
TCXO
(26M)
RTC
(32.768K)
FLASH
SQI*
SAW LNA SMA
UART2
UART1
SPI*
IIC_Host*
IIC_Slave*
VCC
V_BCKP
RF_IN
IIC_0
RST
1PPS
FWD
SPEED
GNSS Adapter
UART0
UART1
SENSER
(A+G/Barometer)
IIC_1
Figure 2-2 Block Diagram of GNSS Adapter
*: Supported later.
UC6580 EVK User Manual
UC-08-C43 EN R1.0 EVK Introduction 3
2.2 Power Supply
The EVK can be powered by a 5 V supply via the USB2.0 interface J17 or J6. You can
directly connect it to the PC to communicate as well as supplying power.
2.3 Configuration
The bottom board provides many interfaces, such as two USB interfaces, a FWD signal
SMA interface and a SPEED signal SMA interface. And on the GNSS adapter, there is the
GNSS RF interface J4, the power interfaces VDDIO/DCDC_IN/V_BACK, and the antenna
feed interface VANT etc.
4 Interface UC-08-C43 EN R1.0
3Interface
12
3
4
5
6 7 8
9
10
11
12
13
14
15
16
Figure 3-1 EVK
(1)
FWD Signal SMA Interface (J12)
(2)
SPEED Signal SMA Interface (J16)
(3)
SPI/I2C Mode Selection (J25)
(4)
SPI/I2C/PPS Test Point
(5)
GNSS Antenna SMA Interface (J4)
(6)
Status Indicator
(7)
USB1 Interface (COM1,J17)
(8)
USB2 Interface (COM2,J6)
(9)
SPEED Signal Phase Selection (J20)
(10)
GNSS Reset Button (K4)
(11)
VDDIO Jumper (J1)
(12)
Backup Battery V_BACK Jumper (J9)
(13)
VDET Jumper (J11)
(14)
DCDC_IN Jumper (J10)
(15)
VQPS Jumper (J8)
(16)
Antenna Feed Jumper (J3)
UC6580 EVK User Manual
UC-08-C43 EN R1.0 Interface 5
3.1 USB Interface
The EVK supports two Type-C USB2.0 interfaces J17 and J6. See Figure 3-1 (7) and (8).
USB1 and USB2 respectively correspond to UART1 and UATR2 of the GNSS adapter.
Both of the two UARTs can be used to communicate with the host, but only UART1 can
be used for firmware upgrade.
3.2 Antenna Interface
The bottom board has two SMA interfaces: J16 (SPEED signal) and J12 (FWD signal).
The voltage of the two signals should be no more than 15 V and no less than 5 V. The
SPEED signal supports phase switch, which is controlled by the jumper J20; the signal
is positive when pin 1 and 2 are connected and negative when pin 2 and 3 are
connected. The pin 1 and 2 are connected by default.
The antenna interface on the GNSS adapter is used to connect the GNSS antenna. When
you use an external active antenna, you need to install the jumper cap to the J11 (VDET
jumper) and J3 (VANT jumper). The antenna voltage is (VDDIO-0.1V).
3.3 Button
On the bottom board, there is a chip reset button K4.
3.4 Communication Mode Selection
J25 on the bottom board supports the communication mode selection. Installing the
jumper cap (ON) is the SPI
1
mode while removing (OFF) is the UART and I2C_slave1
mode. By default, it is OFF.
When the SPI mode is selected, SPI_SCK is the SCL testing point and SPI_CS is the SDA
testing point.
1
Supported later.
6 Interface UC-08-C43 EN R1.0
3.5 Status Indicator
Indicator Symbol
Name
Description
D71
UART1-RX
Light on when receiving data; otherwise off
D72
UART1-TX
Light on when sending data; otherwise off
D73
UART2-RX
Light on when receiving data; otherwise off
D74
UART2-TX
Light on when sending data; otherwise off
D80
Power indicator
Light on when there is power supply;
otherwise off
D66
PPS status indicator
Light on with low level voltage; off with
high level voltage
3.6 GNSS Power Supply Interface
GNSS adapter has three power supply interfaces.
Symbol
Description
Pin 1
Pin 2
J1
VDDIO interface
3.3 V power supply
from the bottom
board
VDDIO power supply interface
J9
Backup battery interface
V_BACK power supply interface
J10
DCDC_IN interface
DCDC_IN power supply interface
Each interface has two pins. Pin 1 is connected to the 3.3 V power on the bottom board,
and pin 2 is connected to different power domains. By default, the jumper caps are
installed and the adapter is supplied by the power on the board. If you use an external
voltage to power the interfaces, connect the power to pin 2.
UC6580 EVK User Manual
UC-08-C43 EN R1.0 Positioning and Power Consumption Test 7
4Positioning and Power Consumption Test
4.1 Positioning Test
1. Connect the GNSS antenna to the interface J4 on the adapter and fix the
antenna in a non-occluded area.
2. Connect the EVK to the PC through the USB interface. Then the power indicator
is on.
3. Start the UPrecise on the PC, select the correct port and baud rate 115200 to
make sure the receiver is connected.
Then the positioning related information appears on the screen, and in the
situation of open sky, the CN0 is normally above 40. Refer to
UPrecise User
Manual
for more details.
Figure 4-1 Connecting EVK to PC
8 Positioning and Power Consumption Test UC-08-C43 EN R1.0
4.2 Power Consumption Test
4.2.1 Power Consumption in Running Mode
To power the GNSS adapter, you can use an external voltage or the power from the
bottom board. See 4.2.1.1 and 4.2.1.2 for the procedures to test the power consumption
in the running mode with different power source.
4.2.1.1 Powered by Bottom Board
When the adapter is powered by the bottom board. Follow the procedures below to test
the power consumption in the running mode.
1. Remove the VDDIO and DCDC_IN jumper caps before power on.
2. Use two test wires, one end of which inserted to the VDDIO jumper, and the other
end connected to the multimeter (see Figure 4-2).
3. Do step 2 again with another two wires and a multimeter but insert the wires to
DCDC_IN jumper.
4. Turn the multimeters to current mode.
5. Connect the EVK to the PC through the USB interface. Then the EVK is powered.
6. Connect the signal source to the antenna SMA interface J4. Set the signal strength
to -130 dBm.
7. Start the UPrecise and make sure that the positioning is successful.
8. Read the current values of VDDIOcurrent and DCDC_INcurrent.
9. Compute the power consumption, which is equal to
3.3 V × (VDDIOcurrent
+ DCDC_INcurrent).
UC6580 EVK User Manual
UC-08-C43 EN R1.0 Positioning and Power Consumption Test 9
Figure 4-2 Testing Power Consumption
If you just have one multimeter, you can measure the current VDDIOcurrent and
DCDC_INcurrent respectively. Make sure that when you measure either one of the
current values, the other jumper cap is installed.
4.2.1.2 Powered by External Voltage
When you use the external voltage to power the adapter, the power consumption is
tested as follows.
1. Remove the jumper caps of DCDC_IN (J10) and VDDIO (J1).
2. Connect the positive end (red) of the external power device to the pin 2 of DCDC_IN
(J10) and VDDIO (J1). Here, you can use a one to two cable.
3. Connect the negative end (black) to the GND.
4. Connect the EVK to the PC through the USB interface. Then the EVK is powered.
5. Connect the signal source to the antenna SMA interface J4. Set the signal strength
to -130 dBm.
6. Start the UPrecise and make sure that the positioning is successful.
7. Read the current values of DCDC_INcurrent. and VDDIOcurrent.
10 Positioning and Power Consumption Test UC-08-C43 EN R1.0
Figure 4-3 Testing DCDC_INcurrent
8. Compute the power consumption, which is equal to
External Voltage × (VDDIOcurrent
+ DCDC_INcurrent).
Similarly, if you do not have the one to two cable, you can measure the current
VDDIOcurrent and DCDC_INcurrent respectively.
4.2.2 Power Consumption in V_BACK Mode
To test the power consumption of V_BACK, do the following steps:
1. Remove the jumper caps of VDDIO and DCDC_IN.
2. Use two test wires, one end of which inserted to the VDDIO jumper, and the other
end connected to the multimeter.
3. Do the steps 4 to 7 in section 4.2.1.1 again.
4. Read the current values of V_BACKcurrent.
5. Compute the power consumption, which is equal to 3.3V × V_BACKcurrent.
UC6580 EVK User Manual
UC-08-C43 EN R1.0 Firmware Upgrade 11
5Firmware Upgrade
1. Connect the EVK to PC through USB1 following the procedures described in section
4.1.
2. Start the UPrecise.
3. Click Receiver Upgrade to do the upgrade. Refer to
UPrecise User Manual
for more
details.
6Remark
After connecting the PC, if a confliction between the serial port and the mouse happens,
you can remove the serial enumerator in the advanced settings of the serial port
property.
Figure 6-1 Removing Serial Enumerator
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