78 lines
2.8 KiB
C++
78 lines
2.8 KiB
C++
/*
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Send UBX binary commands to enable RTCM sentences on Ublox NEO-M8P module
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By: Nathan Seidle
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SparkFun Electronics
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Date: September 7th, 2018
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License: MIT. See license file for more information but you can
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basically do whatever you want with this code.
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This example sends the command to enable the four RTCM messages needed for RTK. This
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is the first part of a larger tutorial and example to setup an RTK base station.
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These commands are only accepted by the NEO-M8P module.
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Feel like supporting open source hardware?
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Buy a board from SparkFun!
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ZED-F9P RTK2: https://www.sparkfun.com/products/15136
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NEO-M8P RTK: https://www.sparkfun.com/products/15005
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SAM-M8Q: https://www.sparkfun.com/products/15106
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Hardware Connections:
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Plug a Qwiic cable into the GPS and a BlackBoard
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If you don't have a platform with a Qwiic connection use the SparkFun Qwiic Breadboard Jumper (https://www.sparkfun.com/products/14425)
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Open the serial monitor at 115200 baud to see the output
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*/
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#include <Wire.h> //Needed for I2C to GPS
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#include "SparkFun_Ublox_Arduino_Library.h" //http://librarymanager/All#SparkFun_u-blox_GNSS
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SFE_UBLOX_GPS myGPS;
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void setup()
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{
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Serial.begin(115200);
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while(!Serial); //Wait for user to open terminal
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Serial.println("Ublox RTCM Enable Example");
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Wire.begin();
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Wire.setClock(400000); //Increase I2C clock speed to 400kHz
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if (myGPS.begin() == false) //Connect to the Ublox module using Wire port
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{
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Serial.println(F("Ublox GPS not detected at default I2C address. Please check wiring. Freezing."));
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while (1);
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}
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while(Serial.available()) Serial.read(); //Clear any latent chars in serial buffer
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Serial.println("Press any key to send commands to enable RTCM 3.x");
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while(Serial.available() == 0) ; //Wait for user to press a key
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myGPS.setI2COutput(COM_TYPE_UBX); //Set the I2C port to output UBX only (turn off NMEA noise)
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myGPS.saveConfiguration(); //Save the current settings to flash and BBR
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boolean response = true;
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response &= myGPS.enableRTCMmessage(UBX_RTCM_1005, COM_PORT_I2C, 1); //Enable message 1005 to output through I2C port, message every second
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response &= myGPS.enableRTCMmessage(UBX_RTCM_1077, COM_PORT_I2C, 1);
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response &= myGPS.enableRTCMmessage(UBX_RTCM_1087, COM_PORT_I2C, 1);
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response &= myGPS.enableRTCMmessage(UBX_RTCM_1230, COM_PORT_I2C, 10); //Enable message every 10 seconds
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if (response == true)
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{
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Serial.println("RTCM messages enabled");
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}
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else
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{
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Serial.println("RTCM failed to enable. Are you sure you have an NEO-M8P?");
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while(1); //Freeze
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}
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//RTCM is now enabled but we haven't done a 'survey-in'
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//See example 4 for the full Base RTK setup
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}
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void loop()
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{
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myGPS.checkUblox(); //See if new data is available. Process bytes as they come in.
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delay(250); //Don't pound too hard on the I2C bus
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}
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