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 /* The example program for the u-blox C030 boards. It sets up
00018  * - the GNSS module  for automatic fix
00019  * - the I2C3 Bus to access bq27441 Battery Charger
00020  * - the bq27441 Battery Charger.
00021  *
00022  */
00023 
00024 #include "mbed.h"
00025 #include "gnss.h"
00026 #include "battery_gauge_bq27441.h"
00027 #include "UbloxCellularDriverGen.h"
00028 #include "onboard_modem_api.h"
00029 
00030 // Set the Baudrate for mcu(pc) and modem(dev)
00031 #define BAUDRATE 115200
00032 
00033 // Set the minimum input voltage limit for the bq27441 to 3.8 Volt
00034 #define MIN_INPUT_VOLTAGE_LIMIT_MV  3880
00035 
00036 
00037 // User LEDs
00038 DigitalOut ledRed(LED1, 1);
00039 DigitalOut ledGreen(LED2, 1);
00040 DigitalOut ledBlue(LED3, 1);
00041 
00042 // Ethernet socket LED 
00043 DigitalOut ledYellow(LED4,1);
00044 
00045 // User Button
00046 #ifdef TARGET_UBLOX_C027
00047     // No user button on C027
00048     InterruptIn userButton(NC);
00049 #else
00050     InterruptIn userButton(SW0);
00051 #endif
00052 
00053 // GNSS
00054 GnssSerial gnss;
00055 
00056 // i2c3 Bus
00057 I2C i2c3(I2C_SDA_B, I2C_SCL_B);
00058     
00059 // Battery Charger bq27441
00060 BatteryGaugeBq27441 charger;
00061 
00062 RawSerial  pc(PD_5, PD_6);
00063 RawSerial  dev(PA_9, PA_10);
00064 
00065 // Delay between LED changes in second
00066 volatile float delay = 0.5;
00067 
00068 // To check if the user pressed the User Button or not
00069 void threadBodyUserButtonCheck(void const *args){
00070     float delayToggle = delay;
00071     while (1){
00072         if (userButton.read() == 1 ) {
00073         // User Button is pressed 
00074             delay = 0.1;
00075             // Indicate with the Yellow LED on Ethernet socket 
00076             ledYellow = 0;
00077         }
00078         else { 
00079         // User button is released
00080             delay = 0.5;
00081             // Turn off the Yellow LED on Ethernet socket
00082             ledYellow = 1;
00083         }
00084     }
00085 }
00086  
00087 void dev_recv()
00088 {
00089     while(dev.readable()) {
00090         pc.putc(dev.getc());
00091     }
00092 }
00093  
00094 void pc_recv()
00095 {
00096     while(pc.readable()) {
00097         dev.putc(pc.getc());
00098     }
00099 }
00100 
00101 /*
00102 ** Out of the Box Demo for C030 variants
00103 ** 
00104 */
00105 int main()
00106 {
00107     printf("u-blox C030-R410M Bring-up baseline using Out-of-the-Box Demo\n\r");
00108 
00109     // GNSS initialisation
00110     if(gnss.init()) {
00111         printf("GNSS initialized.\n\r");
00112     }
00113     else {
00114         printf("GNSS initialization failure.\n\r");
00115     }
00116     
00117     // The battery charger initialisation
00118     if(charger.init(&i2c3)) {
00119         printf("Battery charger initialized.\n\r");
00120     } 
00121     else {
00122         printf("Battery charger initialization failure.\n\r");
00123     }  
00124     printf("\n\r"); 
00125      
00126     // The modem initialisation
00127     onboard_modem_init();
00128     
00129     // Power up the modem
00130     onboard_modem_power_up();
00131     
00132     // Create threadUserButtonCheck thread
00133     Thread threadUserButtonCheck(threadBodyUserButtonCheck);
00134 
00135     // Set the LED states
00136     ledRed = 0;
00137     ledGreen = 1;
00138     ledBlue = 1;
00139     
00140     pc.baud(BAUDRATE);
00141     dev.baud(BAUDRATE);
00142  
00143     pc.attach(&pc_recv, Serial::RxIrq);
00144     dev.attach(&dev_recv, Serial::RxIrq);
00145     
00146     // Main loop
00147     while(1) {
00148         wait(delay);
00149         // Shift the LED states
00150         int carry = ledBlue;
00151         ledBlue = ledRed;
00152         ledRed = ledGreen;
00153         ledGreen = carry;
00154     }
00155 }
00156 
00157 // End Of File
00158