hi phys,
Do you have a circuit diagram to post.?
E
MCP1 is mcp4725 and the datasheet link http://ww1.microchip.com/downloads/en/devicedoc/22039d.pdfhi phys,
I cannot find a MCP1 IC on the web, for a data sheet.??
E
I measure my input signal I can't find SDA signal,Hi phys,
what is your load? Maybee the output current could be to high for the DAC. Can you also measure your input signal to be sure that the data bus works fine?
I'm using Arduino Unohi phys,
Which MCU are you using to drive the DAC?
and program language.?
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This is my code ,hi phys.
You posted that you could not see the SDA signal line switching, is that correct.?
Is the SDA pin secure in the Uno and DAC connections.?
Are you sure the SDA is being controlled correctly by your Sketch.?
Post your Sketch.
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I found the problem there is a short circuit and my board is blockedHi phys,
you could try and use an other Arduino if you have one (to be sure that your Arduino isn't defect). One more option is to disconnect your DAC from the Arduino and then measure the SDA signal (so that no load is connected).
To be sure that the code works fine you can plot your output value over serial.print to your pc.
by Aaron Carman
by Duane Benson
by Aaron Carman