Neil Thiessen / Mbed 2 deprecated MCP4725_HelloWorld

A simple serial test program for the MCP4725 library.

Dependencies:   MCP4725 mbed

main.cpp@2:c96277b1deff, 2014-05-30 (annotated)

Committer:
neilt6
Date:
Fri May 30 18:58:09 2014 +0000
Revision:
2:c96277b1deff
Parent:
0:2c85cb83c9a7 
Updated MCP4725 library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
neilt6 0:2c85cb83c9a7 1 #include "mbed.h"
neilt6 0:2c85cb83c9a7 2 #include "MCP4725.h"
neilt6 0:2c85cb83c9a7 3
neilt6 0:2c85cb83c9a7 4 //Create an MCP4725 object at the default address (ADDRESS_0)
neilt6 0:2c85cb83c9a7 5 MCP4725 dac(p28, p27);
neilt6 0:2c85cb83c9a7 6
neilt6 0:2c85cb83c9a7 7 int main()
neilt6 0:2c85cb83c9a7 8 {
neilt6 0:2c85cb83c9a7 9 //Try to open the MCP4725
neilt6 0:2c85cb83c9a7 10 if (dac.open()) {
neilt6 0:2c85cb83c9a7 11 printf("Device detected!\n");
neilt6 0:2c85cb83c9a7 12
neilt6 0:2c85cb83c9a7 13 //Wake up the DAC
neilt6 0:2c85cb83c9a7 14 //NOTE: This might wake up other I2C devices as well!
neilt6 0:2c85cb83c9a7 15 dac.wakeup();
neilt6 0:2c85cb83c9a7 16
neilt6 0:2c85cb83c9a7 17 while (1) {
neilt6 0:2c85cb83c9a7 18 //Generate a sine wave on the DAC
neilt6 0:2c85cb83c9a7 19 for (float i = 0.0; i < 360.0; i += 0.1)
neilt6 0:2c85cb83c9a7 20 dac = 0.5 * (sinf(i * 3.14159265 / 180.0) + 1);
neilt6 0:2c85cb83c9a7 21 }
neilt6 0:2c85cb83c9a7 22 } else {
neilt6 0:2c85cb83c9a7 23 error("Device not detected!\n");
neilt6 0:2c85cb83c9a7 24 }
neilt6 0:2c85cb83c9a7 25 }