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PSoC 5, 3 & 1 MCU

New Contributor

when i read  the AN2163 ,

The document does not clearly mention the physical connection of 18b20
My connection method is shown in the figure,pin16,pin17
Connect them together, and then connect to the 18b20 signal line,Is this right?27443-1820.png
 
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Moderator
Moderator

Can you kindly attach your project which I suppose is based on CY8C27443. Since the example project is based on CY8C28645, which has the OneWire on P4_4 and P5_0, I would be unable to confirm your question. Kindly refer to the AN2163 on page 13, section 13, where it is mentioned that these two pins have to be shorted. If you have the OneWire User module connecting to chip pins 16 and 17, then what you have done is correct, by shorting these two pins together, and connecting it to DS18x20 DQ pin.

Best regards,

Sampath Selvaraj

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