opp

Dependencies:   mbed

Fork of LAB11_Oppgave01 by EL-POM1001

Committer:
rlanghbv
Date:
Tue Nov 10 13:25:36 2015 +0000
Revision:
1:2d9d32fc4f5d
Parent:
0:81fa0e3e8a6c
Child:
2:3d70a9ba2a58
First commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rlanghbv 0:81fa0e3e8a6c 1 #include "mbed.h"
rlanghbv 0:81fa0e3e8a6c 2
rlanghbv 1:2d9d32fc4f5d 3 I2C i2cBus(I2C_SDA, I2C_SCL);
rlanghbv 0:81fa0e3e8a6c 4
rlanghbv 0:81fa0e3e8a6c 5 int main()
rlanghbv 0:81fa0e3e8a6c 6 {
rlanghbv 1:2d9d32fc4f5d 7 i2cBus.frequency(100000);
rlanghbv 1:2d9d32fc4f5d 8
rlanghbv 1:2d9d32fc4f5d 9 int i2cAddres=0x68; // Address of DS1307 is 0x68 (7 bit address)
rlanghbv 1:2d9d32fc4f5d 10 int i2c8BitAddres= i2cAddres <<1; // Convert to 8bit addressing used by mbed
rlanghbv 1:2d9d32fc4f5d 11
rlanghbv 1:2d9d32fc4f5d 12 int result=i2cBus.write(i2c8BitAddres, NULL, 0);
rlanghbv 1:2d9d32fc4f5d 13
rlanghbv 1:2d9d32fc4f5d 14 //0 on success (ack), non-0 on failure (nack)
rlanghbv 1:2d9d32fc4f5d 15 if (result==0)
rlanghbv 1:2d9d32fc4f5d 16 printf("I2C device found at address 0x%02X \r\n", i2cAddres);
rlanghbv 1:2d9d32fc4f5d 17 else
rlanghbv 1:2d9d32fc4f5d 18 printf("I2C device Not found at address 0x%02X \r\n", i2cAddres);
rlanghbv 0:81fa0e3e8a6c 19 }
rlanghbv 0:81fa0e3e8a6c 20