Hardware Braille Simulator / Mbed 2 deprecated minimal_i2c_mother

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Dependencies:   mbed

Fork of minimal_i2c_mother by Nathan Hansen

master.cpp@0:d3bdf717512e, 2014-11-20 (annotated)

Committer:
nghansen
Date:
Thu Nov 20 16:13:26 2014 +0000
Revision:
0:d3bdf717512e
Child:
1:92677fbab5f1
initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nghansen 0:d3bdf717512e 1 #include "mbed.h"
nghansen 0:d3bdf717512e 2
nghansen 0:d3bdf717512e 3 I2C Bus(p28, p27);
nghansen 0:d3bdf717512e 4 int slaveAddress;
nghansen 0:d3bdf717512e 5
nghansen 0:d3bdf717512e 6 Serial Usb(USBTX, USBRX);
nghansen 0:d3bdf717512e 7 char buffer[16] = {'T', 'e', 's', 't', 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
nghansen 0:d3bdf717512e 8 int ack;
nghansen 0:d3bdf717512e 9
nghansen 0:d3bdf717512e 10 DigitalOut sent(LED1);
nghansen 0:d3bdf717512e 11 DigitalOut received(LED2);
nghansen 0:d3bdf717512e 12
nghansen 0:d3bdf717512e 13 void resetBus()
nghansen 0:d3bdf717512e 14 {
nghansen 0:d3bdf717512e 15 Bus.stop();
nghansen 0:d3bdf717512e 16 Bus.start();
nghansen 0:d3bdf717512e 17 return;
nghansen 0:d3bdf717512e 18 }
nghansen 0:d3bdf717512e 19
nghansen 0:d3bdf717512e 20 int main()
nghansen 0:d3bdf717512e 21 {
nghansen 0:d3bdf717512e 22 slaveAddress = 0x02;
nghansen 0:d3bdf717512e 23 resetBus();
nghansen 0:d3bdf717512e 24
nghansen 0:d3bdf717512e 25 while (1)
nghansen 0:d3bdf717512e 26 {
nghansen 0:d3bdf717512e 27 for(int i = 0; i < sizeof buffer; buffer[i++]=0x00);
nghansen 0:d3bdf717512e 28 Usb.scanf("%s", buffer);
nghansen 0:d3bdf717512e 29 Usb.printf("%s \n\r", buffer);
nghansen 0:d3bdf717512e 30
nghansen 0:d3bdf717512e 31 ack = Bus.write(slaveAddress & 0xFE, buffer, 16);
nghansen 0:d3bdf717512e 32 if(ack == 0)
nghansen 0:d3bdf717512e 33 Usb.printf(" ...Ack \n\r");
nghansen 0:d3bdf717512e 34
nghansen 0:d3bdf717512e 35 ack = Bus.write(0, buffer, 16);
nghansen 0:d3bdf717512e 36 if(ack == 0)
nghansen 0:d3bdf717512e 37 Usb.printf("Ack from broadcast \n\r");
nghansen 0:d3bdf717512e 38
nghansen 0:d3bdf717512e 39 Bus.read(slaveAddress | 1, buffer, 16, 0);
nghansen 0:d3bdf717512e 40 Usb.printf("Received: %s \n\r", buffer);
nghansen 0:d3bdf717512e 41 }
nghansen 0:d3bdf717512e 42 }