View source for LPC1768: DAC Programming ← LPC1768: DAC Programming

[[category: LPC1768 Tutorials]]
=Objective=
In this tutorial we are going to discuss how to use the inbuilt LPC1768 DAC.<br>
Finally we will see how to use the ExploreEmbedded DAC libraries.<br><br><br><br>


=LPC1768 DAC Module=
Lpc1768 has in built DAC with following features.
#10-bit digital to analog converter
#Resistor string architecture
#Buffered output
#Power-down mode
#Selectable speed vs. power
#Maximum update rate of 1 MHz.

{| class="table table-striped table-hover table-condensed table-bordered"
|-class="info"
!Adc Channel || Port Pin || Pin Functions || Associated PINSEL Register
|-                                                              
|AD3|| P0.26  || 0-GPIO, 1-AD0[3], 2-<b>AOUT </b>, 3-RXD3||20,21 bits of PINSEL1 
|}
$$DAC Output = (Vref * InputValue)/MaxValue =  (3.3 * InputValue)/1023 = InputValue * 3.22 mv.$$
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=DAC Registers=
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=Steps=
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=Code=
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