Hardware Braille Simulator / Mbed 2 deprecated minimal_i2c_mother

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   mbed

Fork of minimal_i2c_mother by Nathan Hansen

master.cpp

Committer:
rrbeauch
Date:
2014-12-02
Revision:
1:92677fbab5f1
Parent:
0:d3bdf717512e
Child:
2:4709985cf716

File content as of revision 1:92677fbab5f1:

#include "mbed.h"
#define ROWSIZE     (3)
#define SELECTSIZE  (0x04)

//BusOut toCells(p5,p6,p7,p8,p9,p10,p11,p12);
//BusOut select(p13,p14,p15);
 
I2C Bus(p28, p27);
//I2CSlave Self(p9, p10);

int slaveAddressRow1;
int slaveAddressRow2;

Serial Usb(USBTX, USBRX);
char buffer[16] = {0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x00};
int ack;

char slaveBuffer[16];
DigitalOut sent(LED1);
DigitalOut received(LED2);

void resetBus()
{
    Bus.stop();
    Bus.start();   
    return; 
}

int main() 
{
    slaveAddressRow1 = 0x02;
    //slaveAddressRow2 = 0x04;
    //Self.address(slaveAddressRow2);
    resetBus();
    
    while (1) 
    {
        //for(int i = 0; i < sizeof buffer; buffer[i++]=0x00);
        //Usb.scanf("%s", buffer);
        //Usb.printf("%s \n\r", buffer);
        
        wait(1);
        
        int ack1 = Bus.write(slaveAddressRow1 & 0xFE, buffer, 16);
        if(ack1 == 0)
            Usb.printf("Row one sent\n\r");
        else
            Usb.printf("No Ack");
        //ack2 = Bus.write(slaveAddressRow2 & 0xFE, buffer, 16);             
        //if(ack2 == 0)
          //  Usb.printf("Row two sent\n\r");
        
        /*int i = Bus.receive();
        switch (i) 
        {
            case I2CSlave::ReadAddressed:
                Bus.write(slaveBuffer, 16);
                PC.printf("wrote: %s \n\r", buffer);
                break;
            case I2CSlave::WriteGeneral:
                Bus.read(slaveBuffer, 16);
                PC.printf("received broadcast: %s \n\r", buffer);
                break;
            case I2CSlave::WriteAddressed:
                Bus.read(slaveBuffer, 16);
                PC.printf("received message: %s \n\r", buffer);
                break;
        }
        
        char cell = SELECTSIZE;
        for(j = 0; j < ROWSIZE; j++)
        {
            toCells = buffer[j];
            select = cell;
            cell >>= 1;
            wait(0.1);
            select = 0x00; 
        }
          */  
    }
}