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Analog output

ramib
Associate II
Posted on October 29, 2008 at 12:56

Analog output

5 REPLIES 5
ramib
Associate II
Posted on May 17, 2011 at 12:49

Please help me,

I'm a new developer on embeded system,i've STM32-SK board and my project is to read from serial port and execute request, the request could be read and write from\to digital and analog output.till now i finished digitAL I\O and analog input BUT i cant find how can i write to analog output, analog output value is a constant value and must be stable how can i do that?

ramib
Associate II
Posted on May 17, 2011 at 12:49

Thanks to your effort,

My herware engineer disigned pins PA8 and PA9 to be analog aoutput in range of 4-20mA, can i execute an analog signal through those pins? if yes how can i do it?

Thank again.

16-32micros
Associate III
Posted on May 17, 2011 at 12:49

Hi,

DAC peripheral in High density devices is able to output analog signals

with dedicated pins.

Cheers,

STOne-32.

[ This message was edited by: STOne-32 on 29-10-2008 12:48 ]

st3
Associate II
Posted on May 17, 2011 at 12:49

If he designed it, then your hardware engineer should be able to tell you how to use it!

ivanov-i
Associate II
Posted on May 17, 2011 at 12:49

May be he considered using PWM from timer 1. There should be also a low-pass filter.