Navia ML8088s Operating Manual Download

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Navigation Receiver

ML8088s

Evaluation Board

Operating Manual

Version 2.0

St. Petersburg

2013

Summary of Contents for ML8088s

Page 1: ...Navigation Receiver ML8088s Evaluation Board Operating Manual Version 2 0 St Petersburg 2013...

Page 2: ...ion Board 9 The Evaluation Board Circuit Diagram 11 Navia GLONASS GPS Application 12 The Board Activation 13 Application Configuration 13 The Application Operation 16 Restart 17 Data Output redirectio...

Page 3: ...asurement channels the signals of space navigation system spacecraft GLONASS in the frequency range L1 PT code GPS frequency L1 C A code and GALILEO at the frequency E1 The navigation receiver ML8088s...

Page 4: ...on of the old model evaluation board is available in the document Evaluation board ML8088s RE v1_0 pdf Please see Figure 2 for the appearance of the evaluation board Fig 2 The appearance of a evaluati...

Page 5: ...nterface USB Type of interface converters used FT2232D USB interface connector USB B F Number of PC communication channels 1 Number of displayed COM ports 2 Primary purpose of COM 1 communication chan...

Page 6: ...ion of indication and switching elements on the evaluation board of ML8088s receiver The figure shows antenna connector Antenna cable connector USB signal LED GNSS receiver power supply voltage LED PW...

Page 7: ...that attach the module with electronic components of a evaluation board with external devices or left unconnected The purpose of the switch pins is shown in Table 2 Table 2 Signal Pin Explanation Com...

Page 8: ...8 9 7 8 remove GNSS status 11 10 11 11 12 Rx0 14 13 14 13 14 14 15 TX0 17 16 17 16 17 17 18 GND 20 always connected V_BAT 23 VCC_3 3V 26 25 26 25 26 26 27 RST 29 28 29 28 29 29 30 28 29 Notes Move a j...

Page 9: ...arget device being developed and test how the module functions as a part of the target device without material installation of the module This allows considerable acceleration of the new device develo...

Page 10: ...603 R12 0 smd 0603 R13 NC smd 0603 Quartz crystal resonators BQ1 6MHz HC49US low profile Transistors VT1 MMUN2111LT1G sot23 VT2 BC 847 C sot23 LED HL1 KP3216SEC smd 1206 HL2 KPK3216VGC smd 1206 HL3 KP...

Page 11: ...Board of ML8088s Receiver Operating Manual 2 0 11 The Evaluation Board Circuit Diagram The ML8088s receiver evaluation board circuit diagram is presented in Figure 6 Fig 6 The evaluation board circui...

Page 12: ...site at the address http www ftdichip com Drivers VCP htm where you have to select the driver matching the operation system of the user s computer Further this document describes the interaction of Na...

Page 13: ...onnected to the computer This is necessary because after the application has been started it checks all the available serial ports of the user computer If the board is connected to the computer throug...

Page 14: ...age Data exchange port is not specified Figure 9B Data exchange port quick search window Figure 9C The message Data exchange port has been identified The board operation can require changing the port...

Page 15: ...the Data Source port and Debugging Information Port numbers should not coincide and then click the Save button All the configuration can also be done manually To do this open the Settings menu tab see...

Page 16: ...ads and analyses the input data and displays a number of parameters numbers of detected satellites the signal strength of detected satellites numbers of satellites participating in the decision making...

Page 17: ...et and restart the module The TTTF parameter Time To First Fix indicates the time elapsed from running the restart command until receiving the correct position coordinates Data Output redirection Fig...

Page 18: ...on Two ways to define used satellite group exist with parameter save and without parameter save Saving parameters allows using previously saved satellite group on furhter application launch This setti...

Page 19: ...nt window tab This tab shows the layout graph of coordinate s distribution indication Coordinates are shown as point set The first point always located in the coordinate origin The red dot indicates t...

Page 20: ...e PDOP VDOP HDOP GDOP exceeds the threshold the navigation solution is treated incorrect invalid ST AGPS mode Fig 19 NAVIA GLONASS GPS application 1PPS signal level window tab This tab allows to switc...

Page 21: ...tion of position precision only in the Western region of Russia in the other regions its use will be at least useless Parameters Fig 21 GLONASS GPS application reciever s read and write parameter wind...

Page 22: ...88s Receiver Operating Manual 2 0 22 Miscellaneous Fig 22 GLONASS GPS application reciever firmware version window tab This tab shows module s navigation library version and the text string for firmwa...

Page 23: ...6 17 GND Antenna connection jack Analog 21 IN_RF DC 3 3V Power 13 V_IN Backup battery circuit Power 12 V_RTC UART1 OUT NMEA In Out 4 TX1 UART1 IN NMEA In Out 5 RX1 UART0 OUT In Out 2 TX0 UART0 IN In...

Page 24: ...ure to connect and disconnect external battery on the fly allows developer to evaluate battery power impact on the design of the device The ML8088s operation method WITHOUT battery connected is as fol...

Page 25: ...the pin 18 IN RST This line is shown as RESET In on the graph This is necessary for the correct selection of the built in microcontroller mode operation operation or the firmware write to build in fla...

Page 26: ...leaks may include the leaks through the pull down resistors or through the overvoltage protections circuits in case of protection voltage threshold lower than Vdd Maximum leak current is 2 mkA The bre...