Cellular module AT Serial interface passthrough to Debug COM port. This program can be used on the C030 boards excluding the C030 N2xx version.

main.cpp

Committer:
fahimalavi
Date:
15 months ago
Revision:
6:886ffd0f05fd
Parent:
1:f39e92fcdf5e

File content as of revision 6:886ffd0f05fd:

/* mbed Microcontroller Library
 * Copyright (c) 2017 u-blox
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/* The example program for the u-blox C030 boards. It sets up
 * - the GNSS module  for automatic fix
 * - the I2C3 Bus to access bq27441 Battery Charger
 * - the bq27441 Battery Charger.
 *
 */

#include "mbed.h"
#include "gnss.h"
#include "battery_gauge_bq27441.h"
#include "UbloxCellularDriverGen.h"
#include "onboard_modem_api.h"

// Set the Baudrate for mcu(pc) and modem(dev)
#define BAUDRATE 115200

// Set the minimum input voltage limit for the bq27441 to 3.8 Volt
#define MIN_INPUT_VOLTAGE_LIMIT_MV  3880


// User LEDs
DigitalOut ledRed(LED1, 1);
DigitalOut ledGreen(LED2, 1);
DigitalOut ledBlue(LED3, 1);

// Ethernet socket LED 
DigitalOut ledYellow(LED4,1);

// User Button
#ifdef TARGET_UBLOX_C027
    // No user button on C027
    InterruptIn userButton(NC);
#else
    InterruptIn userButton(SW0);
#endif

// GNSS
GnssSerial gnss;

// i2c3 Bus
I2C i2c3(I2C_SDA_B, I2C_SCL_B);
    
// Battery Charger bq27441
BatteryGaugeBq27441 charger;

RawSerial  pc(PD_5, PD_6);
RawSerial  dev(PA_9, PA_10);

// Delay between LED changes in second
volatile float delay = 0.5;

// To check if the user pressed the User Button or not
void threadBodyUserButtonCheck(void const *args){
    float delayToggle = delay;
    while (1){
        if (userButton.read() == 1 ) {
        // User Button is pressed 
            delay = 0.1;
            // Indicate with the Yellow LED on Ethernet socket 
            ledYellow = 0;
        }
        else { 
        // User button is released
            delay = 0.5;
            // Turn off the Yellow LED on Ethernet socket
            ledYellow = 1;
        }
    }
}
 
void dev_recv()
{
    while(dev.readable()) {
        pc.putc(dev.getc());
    }
}
 
void pc_recv()
{
    while(pc.readable()) {
        dev.putc(pc.getc());
    }
}

/*
** Out of the Box Demo for C030 variants
** 
*/
int main()
{
    printf("u-blox C030-R410M Bring-up baseline using Out-of-the-Box Demo\n\r");

    // GNSS initialisation
    if(gnss.init()) {
        printf("GNSS initialized.\n\r");
    }
    else {
        printf("GNSS initialization failure.\n\r");
    }
    
    // The battery charger initialisation
    if(charger.init(&i2c3)) {
        printf("Battery charger initialized.\n\r");
    } 
    else {
        printf("Battery charger initialization failure.\n\r");
    }  
    printf("\n\r"); 
     
    // The modem initialisation
    onboard_modem_init();
    
    // Power up the modem
    onboard_modem_power_up();
    
    // Create threadUserButtonCheck thread
    Thread threadUserButtonCheck(threadBodyUserButtonCheck);

    // Set the LED states
    ledRed = 0;
    ledGreen = 1;
    ledBlue = 1;
    
    pc.baud(BAUDRATE);
    dev.baud(BAUDRATE);
 
    pc.attach(&pc_recv, Serial::RxIrq);
    dev.attach(&dev_recv, Serial::RxIrq);
    
    // Main loop
    while(1) {
        wait(delay);
        // Shift the LED states
        int carry = ledBlue;
        ledBlue = ledRed;
        ledRed = ledGreen;
        ledGreen = carry;
    }
}

// End Of File