Riad_ Bajraktarevic / Mbed 2 deprecated 27_02_2020_Lab

I2C

Dependencies:   mbed

I2c.cpp@0:4ae0b37b2729, 2020-02-27 (annotated)

Committer:
riad
Date:
Thu Feb 27 18:35:29 2020 +0000
Revision:
0:4ae0b37b2729
I2C

Who changed what in which revision?

UserRevisionLine numberNew contents of line
riad 0:4ae0b37b2729 1 #include "mbed.h"
riad 0:4ae0b37b2729 2
riad 0:4ae0b37b2729 3 DigitalOut myled(LED1);
riad 0:4ae0b37b2729 4 I2C i2c (p28, p27);
riad 0:4ae0b37b2729 5
riad 0:4ae0b37b2729 6 const int addr = 0x90;
riad 0:4ae0b37b2729 7
riad 0:4ae0b37b2729 8 int main() {
riad 0:4ae0b37b2729 9 char cmd [2];
riad 0:4ae0b37b2729 10 while(1) {
riad 0:4ae0b37b2729 11 cmd [0] = 0x01;
riad 0:4ae0b37b2729 12 cmd [1] = 0x00;
riad 0:4ae0b37b2729 13 i2c.write(addr, cmd, 2);
riad 0:4ae0b37b2729 14 wait (0.5);
riad 0:4ae0b37b2729 15
riad 0:4ae0b37b2729 16 cmd[0] = 0x00;
riad 0:4ae0b37b2729 17 i2c.write(addr, cmd, 1);
riad 0:4ae0b37b2729 18 i2c.read(addr, cmd, 2);
riad 0:4ae0b37b2729 19
riad 0:4ae0b37b2729 20 float tmp = (cmd[0]<<8|cmd[1]) / 256.0;
riad 0:4ae0b37b2729 21 printf("Temp = %.2f\n", tmp);
riad 0:4ae0b37b2729 22
riad 0:4ae0b37b2729 23 }
riad 0:4ae0b37b2729 24 }