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need help with TC74 digital thermal sensor
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pdswar



Joined: 18 Jul 2006
Posts: 33
Location: Maryland, USA

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PostPosted: Mon Sep 18, 2006 7:35 am     Reply with quote

Not reading the datasheet for TC74 was the source of my errors. I am using TC74A0-5.0VCT but I was copying codes written for TC74A5-5.0VCT

Everything worked when I replaced

i2c_start();
i2c_write(0x9A);
i2c_write(0x00);

i2c_start();
i2c_write(0x9B);
temp = i2c_read(0);
i2c_stop();

with correct address for TC74A0-5.0VCT (changed 0x9A->0x90 and 0x9B->0x91)

i2c_start();
i2c_write(0x90); //For
i2c_write(0x00);

i2c_start();
i2c_write(0x91);
temp = i2c_read(0);
i2c_stop();

[/b]

Thank you all for your help.
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