AW: [En-Nut-Discussion] I2C questions

[Kowalsky, Richard]

Andreas,

   Thank you very much for your help, I will give your suggestions a try
as soon as possible.  I think I am close to getting it working.  I can
see the clock and data lines strobing when I issue my commands.  Right
now I am double-checking all my electrical interface hardware.  Your
suggestion below is excellent!

Thanks again for your help,

Richard


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Hi Richard,

I forgot - maybe you use the wrong adress of your I2C devices ?

this a a very dirty piece of code to find resonding devices (active
adresses) by returncode rc 

void TestTWI (void)
{
 unsigned char lbuf[10];
 unsigned char retb[10];
 lbuf[0]=0xf0; // dummy
 unsigned char a = 0;
 int rc;
 for(a=0; a<256; a++)
 {
 rc = TwMasterTransact(a, lbuf, 1, retb, 1, 1000);
 printf("Adress : Dez: %d Hex: %02X       RC:%d\n",a,retb[0],rc);
 NutSleep(50);
 }

Andreas

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