MultiTech / Mbed 2 deprecated Dragonfly_DigitalIn_BusIn_Example

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Dependencies:   mbed

main.cpp@2:292acfb6a3af, 2016-02-26 (annotated)

Committer:
mfiore
Date:
Fri Feb 26 16:52:18 2016 +0000
Revision:
2:292acfb6a3af
Parent:
1:5770646ab65b 
Updated mbed library to revision 112, disable regulator's battery charger

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mfiore 1:5770646ab65b 1 /** Dragonfly DigitalIn and BusIn Example Program
mfiore 0:c7d463ff3deb 2 *
mfiore 0:c7d463ff3deb 3 * This program demonstrates how to read digital inputs using the
mfiore 0:c7d463ff3deb 4 * MultiTech Dragonfly and MultiTech UDK2 hardware. The only
mfiore 0:c7d463ff3deb 5 * additional hardware required is jumper wires.
mfiore 0:c7d463ff3deb 6 *
mfiore 0:c7d463ff3deb 7 * Pins are active low, so 0V = 0 and 5V/3.3V = 1.
mfiore 0:c7d463ff3deb 8 *
mfiore 0:c7d463ff3deb 9 * This program prints the new value of the BusIn each time it changes
mfiore 0:c7d463ff3deb 10 * and the new value of the DigitalIn each time it changes.
mfiore 0:c7d463ff3deb 11 */
mfiore 0:c7d463ff3deb 12
mfiore 0:c7d463ff3deb 13 #include "mbed.h"
mfiore 2:292acfb6a3af 14
mfiore 2:292acfb6a3af 15 // This line controls the regulator's battery charger.
mfiore 2:292acfb6a3af 16 // BC_NCE = 0 enables the battery charger
mfiore 2:292acfb6a3af 17 // BC_NCE = 1 disables the battery charger
mfiore 2:292acfb6a3af 18 DigitalOut bc_nce(PB_2);
mfiore 0:c7d463ff3deb 19
mfiore 0:c7d463ff3deb 20 int main() {
mfiore 2:292acfb6a3af 21 // Disable the battery charger unless a battery is attached.
mfiore 2:292acfb6a3af 22 bc_nce = 1;
mfiore 2:292acfb6a3af 23
mfiore 0:c7d463ff3deb 24 // read digital pins D9 and D10 as a 2 pin bus
mfiore 0:c7d463ff3deb 25 // the first pin is the LSB of the bus, the last is the MSB
mfiore 0:c7d463ff3deb 26 BusIn bus(D9, D10);
mfiore 0:c7d463ff3deb 27 // read digital pin D12
mfiore 0:c7d463ff3deb 28 DigitalIn din(D12);
mfiore 0:c7d463ff3deb 29
mfiore 0:c7d463ff3deb 30 int old_bus = -1;
mfiore 0:c7d463ff3deb 31 int old_din = -1;
mfiore 0:c7d463ff3deb 32
mfiore 0:c7d463ff3deb 33 while (true) {
mfiore 0:c7d463ff3deb 34 if (bus != old_bus) {
mfiore 0:c7d463ff3deb 35 old_bus = bus;
mfiore 0:c7d463ff3deb 36 printf("bus = %d\r\n", old_bus);
mfiore 0:c7d463ff3deb 37 }
mfiore 0:c7d463ff3deb 38 if (din != old_din) {
mfiore 0:c7d463ff3deb 39 old_din = din;
mfiore 0:c7d463ff3deb 40 printf("din = %d\r\n", old_din);
mfiore 0:c7d463ff3deb 41 }
mfiore 0:c7d463ff3deb 42
mfiore 0:c7d463ff3deb 43 wait_ms(100);
mfiore 0:c7d463ff3deb 44 }
mfiore 0:c7d463ff3deb 45 }