Parallel port interfacing

[sirish]

Hi Friends,

How can i interface standard adc chips like adc0800 or adc 0808 to the parallel port of the computer. My application has one analog input.
Plz let me know which pins of the adc chips adc0800 or adc 0808  should be connceted to which pins of parallel port.
Plzzzzzz help me.

 

[windoze killa]

As far as which pins on the parallel port goes it will depend on your software that is going to read the port.

 

[sirish]

i  want to know where the pins soc(start of conversion) eoc ( end of conversion)
and oe (output enable) of adc chips like  adc0808 / 0800 should be connected to which pins of the parallel port.

The D0-D7 pins of adc chips will be connected to d0-d7 pins of parallel port.
I will be using visual basic 6 to read the data lines.

 

[windoze killa]

Grab the datasheet for the chip. It should be easy enough to work out from there. For OE, SOC and EOC pins you should be able to use any of the control lines ie. busy line, for these outputs.

 

[MP1]

D0 is LSB and D7 is MSB on Parallel port. Is this what you wanted to know? D0 on Parallel port connects to LSB on the ADC0808.

MP