FPGA and DS18B20 sensor reading

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esdat35

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ds18b20 fpga

hi everyone , I want to design a temperature controller circuit by using DS18B20 sensor with spartan 3A DSP FPGA. I read temperature from one sensor but now ı have to read 4 sensor with one-wire bus. Can anyone has a source code and post me ?

thanx for your helps...
 

is not there anyone help me ?
 

Hello,

This is a very old subject, but maybe you can answer to my question. I want to connect a DS18B20 temperature sensor to Spartan 3E starter kit but I'm not sure if I should use an external pull-up resistor as mentioned in DS18B20 datasheet for microcontrollers or connect throughly without any resistor. Should I add a pull-up in constraints file?

Thanks....
 

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