main.cpp

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2017 u-blox
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *     http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 
00017 #include "mbed.h"
00018 #include "gnss.h"
00019 #include "battery_charger_bq24295.h"
00020 #include "onboard_modem_api.h"
00021 
00022 // Set the minimum input voltage limit for the BQ24295 to 3.8 Volt
00023 #define MIN_INPUT_VOLTAGE_LIMIT_MV  3880
00024 
00025 // User LEDs
00026 DigitalOut ledRed(LED1, 1);
00027 DigitalOut ledGreen(LED2, 1);
00028 DigitalOut ledBlue(LED3, 1);
00029 
00030 //GNSS 1V8_MAX IO power
00031 DigitalOut GNSSOn(GNSSEN, 1);
00032 
00033 // Ethernet socket LED 
00034 DigitalOut ledYellow(LED4,1);
00035 
00036 // User Button
00037 #ifdef TARGET_UBLOX_C027
00038     // No user button on C027
00039     InterruptIn userButton(NC);
00040 #else
00041     InterruptIn userButton(SW0);
00042 #endif
00043 
00044 // GNSS
00045 GnssSerial gnss;
00046 
00047 // i2c3 Bus
00048 I2C i2c3(I2C_SDA_B, I2C_SCL_B);
00049     
00050 // Battery Charger BQ24295
00051 BatteryChargerBq24295 charger;
00052 
00053 // Delay between LED changes in second
00054 volatile float delay = 0.5;
00055 
00056 // To check if the user pressed the User Button or not
00057 void threadBodyUserButtonCheck(void const *args){
00058     while (1){
00059         if (userButton.read() == 1 ) {
00060         // User Button is pressed 
00061             delay = 0.1;
00062             //Indicate the button is pressed 
00063             ledYellow = 0;
00064         }
00065         else { 
00066         // User button is released
00067             delay = 0.5;
00068             //Turn off the Yellow LED on Ethernet socket
00069             ledYellow = 1;
00070         }
00071     }
00072 }
00073 
00074 /*
00075 ** Out of the Box Demo for C030 variants
00076 ** 
00077 ** Sets the modem then    
00078 */
00079 
00080 int main()
00081 {
00082     printf("u-blox C030 Out-of-the-Box Demo\n\r");
00083 
00084     // GNSS initialisation
00085     if(gnss.init()) {
00086         printf("GNSS initialised.\n\r");
00087     }
00088     else {
00089         printf("GNSS initialisation failure.\n\r");
00090     }
00091    
00092     // The battery charger initialisation
00093     charger.init(&i2c3);   
00094     charger.setInputVoltageLimit(MIN_INPUT_VOLTAGE_LIMIT_MV); 
00095     // Disable the battery charger's watchdog, otherwise it resets the battry charger
00096     charger.setWatchdog(0);
00097    
00098     // Initialised the modem
00099     onboard_modem_init();
00100     
00101     // Power up the modem
00102     onboard_modem_power_up();
00103     
00104     // Create threadUserButtonCheck thread
00105     Thread user_button(osPriorityNormal);
00106     user_button.start(callback(threadBodyUserButtonCheck, (void *)"User Button Thread"));
00107 
00108     
00109     //Set GNSS IO On
00110     GNSSOn = 1;
00111     
00112     // Set the LED states
00113     ledRed = 0;
00114     ledGreen = 1;
00115     ledBlue = 1;
00116     
00117     printf("u-blox C030 Out-of-the-Box Demo: LED loop\n\r");
00118     
00119     //Main loop
00120     while(1) {
00121         wait(delay);
00122         //Shift the LED states
00123         int carry = ledBlue;
00124         ledBlue = ledRed;
00125         ledRed = ledGreen;
00126         ledGreen = carry;
00127     }
00128 }
00129 
00130 // End Of File