CONFIG ADCX - Revision history

Admin at 18:49, 7 February 2013

2013-02-07T18:49:12Z

Admin at 18:48, 7 February 2013

2013-02-07T18:48:42Z

Admin at 18:48, 7 February 2013

2013-02-07T18:48:07Z

Admin at 18:47, 7 February 2013

2013-02-07T18:47:32Z

Admin at 18:45, 7 February 2013

2013-02-07T18:45:48Z

Admin at 18:44, 7 February 2013

2013-02-07T18:44:52Z

Admin at 18:44, 7 February 2013

2013-02-07T18:44:06Z

Admin at 18:42, 7 February 2013

2013-02-07T18:42:40Z

Admin at 18:42, 7 February 2013

2013-02-07T18:42:06Z

Admin at 18:41, 7 February 2013

2013-02-07T18:41:29Z

@@ Line 945: / Line 945: @@
 This ADC calibration value copy should be done in a setup routine before using the ADC.
-See also&nbsp;[http://avrhelp.mcselec.com/readsig.htm READSIG]&nbsp;(reads a byte from the signature area in the XMEGA)
+See also&nbsp;[[READSIG]]&nbsp;(reads a byte from the signature area in the XMEGA)
 &nbsp;

@@ Line 963: / Line 963: @@
 &nbsp;
-[http://avrhelp.mcselec.com/notice.jpgTake http://avrhelp.mcselec.com/notice.jpgTake] care on the source impedance of the analog signal source. If the source impedance is too high, the internal sampling
+[[File:Notice.jpg|left]]Take care on the source impedance of the analog signal source. If the source impedance is too high, the internal sampling
 capacitor will not be charged to the correct level and the result will not be accurate.

@@ Line 980: / Line 980: @@
 |- valign="baseline" style="vertical-align: baseline;"
 | width="13" | <span style="font-size: 10pt; font-family: 'Arial Unicode MS', 'Lucida Sans Unicode', Arial;">•</span>
-| Switch off unused peripheral parts with&nbsp;[http://avrhelp.mcselec.com/config_power_reduction.htm CONFIG POWER_REDUCTION]&nbsp;to eliminate noise.
+| Switch off unused peripheral parts with&nbsp;[[CONFIG_POWER_REDUCTION|CONFIG POWER_REDUCTION]]&nbsp;to eliminate noise.
 |}
 </div><div style="padding: 0px; margin: 0px;">

@@ Line 1,013: / Line 1,013: @@
 &nbsp;
-[http://avrhelp.mcselec.com/notice.jpgThe http://avrhelp.mcselec.com/notice.jpgThe] external reference pin AREFA or AREFB is shared with the DAC module&nbsp;!
+[[File:Notice.jpg|left]]The external reference pin AREFA or AREFB is shared with the DAC module&nbsp;!
 &nbsp;
@@ Line 1,027: / Line 1,027: @@
 <span class="f_Header">For Maximum Performance use Event System and DMA Controller combined with ADC</span>
-See&nbsp;[http://avrhelp.mcselec.com/config_dma.htm config DMA],&nbsp;[http://avrhelp.mcselec.com/config_dmachx.htm config DMAchx],&nbsp;[http://avrhelp.mcselec.com/config_event_system.htm config Event_System]
+See&nbsp;[[CONFIG_DMA|config DMA]],&nbsp;[[CONFIG_DMACHX|config DMAchx]],&nbsp;[[CONFIG_EVENT_SYSTEM|config Event_System]]
 <span class="f_Header">&nbsp;</span>

← Older revision		Revision as of 18:45, 7 February 2013
Line 1,240:		Line 1,240:

	Don't forget to subtract the offset from the measured value as we use unsigned mode.		Don't forget to subtract the offset from the measured value as we use unsigned mode.
		+
		+	<br/><source lang="bascomavr">
		+	$regfile = "XM256A3BUDEF.DAT"
		+	$crystal = 32000000 '32MHz
		+	$hwstack = 64
		+	$swstack = 40
		+	$framesize = 80
		+
		+	Config Osc = Enabled , 32mhzosc = Enabled '32MHz
		+	'configure the systemclock
		+	Config Sysclock = 32mhz , Prescalea = 1 , Prescalebc = 1_1
		+
		+
		+	Config Portr.0 = Output
		+	Led0 Alias Portr.0 'LED 0
		+	Config Portr.1 = Output
		+	Led1 Alias Portr.1 'LED 1
		+
		+	Config Com5 = 57600 , Mode = Asynchroneous , Parity = None , Stopbits = 1 , Databits = 8
		+	Open "COM5:" For Binary As #1
		+
		+
		+	Dim B As Byte
		+	dim j as byte
		+
		+	'First print the complete signature row
		+	For J = 0 To 37
		+	b = Readsig(j) : Print #1, j ;" = " ; b
		+	Next
		+
		+	'Read calibration bytes from Signature row
		+	'ADCB
		+	B = Readsig(24) 'ADCB Calibration Byte 0
		+	ADCB_CALL = b 'write the value to the register
		+	Print #1 , "DCB Calibration Byte 0 = " ; B
		+	B = Readsig(25) 'ADCB Calibration Byte 1
		+	ADCB_CALH = b
		+	Print #1 , "DCB Calibration Byte 1 = " ; B
		+	'DACB
		+	B = Readsig(32) 'DACB Calibration Byte 0 (DACBOFFCAL)
		+	DACB_CH0OFFSETCAL = b 'write to the DACB offset register
		+	Print #1 , "DACB Calibration Byte 0 = " ; B
		+	B = Readsig(33) 'DACB Calibration Byte 1 (DACBGAINCAL)
		+	DACB_GAINCAL = b
		+	Print #1 , "DACB Calibration Byte 1 = " ; B
		+
		+
		+
		+	'Configure the DAC output to output
		+	Config Dacb = Enabled , Io0 = Enabled , Channel = Single ,INTERNAL_OUTPUT = enabled, Reference = Int1v , Interval = 64 , Refresh = 64
		+
		+
		+	Dim W As Word
		+	'--------------------------------------------------------------------------------
		+	'setup the ADC-B converter (there is no DAC A on ATXMEGA256A3BU)
		+	'For internal Measurements use Unsigned mode, 12 bit, Internal 1.00 V Reference
		+	Config Adcb = Single , Convmode = Unsigned , Resolution = 12bit , Dma = Off , Reference = Intvcc , Event_mode = None , Prescaler = 512 , _
		+	Ch0_gain = 1 , Ch0_inp = INTERNAL , Mux0 = &B0_0011_000 'configure MUX0 to measure internal DAC
		+
		+
		+
		+	Dacb0 = 4095 '1 V
		+
		+	Do
		+	Wait 1
		+	W = Getadc(adcb , 0 , &B0_0011_000) 'Measure DAC
		+	Print #1 , "W = " ; W
		+	Loop
		+
		+	End 'end program
		+	</source><br/>{{Languages}}
		+
		+	[[Category:BASCOM Language Reference]]

@@ Line 1,078: / Line 1,078: @@
 </source>
-= <span style="font-size: 19px; font-weight: bold;"></span><span style="font-size: 14pt; font-weight: bold;">Measure Offset in Single Ended Unsigned Mode</span> =
+= <span style="font-size: 14pt; font-weight: bold;">Measure Offset in Single Ended Unsigned Mode</span> =
 With this example we want to measure the offset in single ended unsigned mode and also the output of the internal 1.0 Voltage reference to DAC B PINB.2. Also the signature row with calibration byte is in the example.
@@ Line 1,144: / Line 1,144: @@
 |}
 </div>
+<br/><source lang="bascomavr">
+'(
+ Single ended input (unsigned mode)
+ In unsigned mode the negative input is connected to half of the voltage reference (Vref) voltage minus a fixed device specific negative offset
 = <span class="f_Header">Internal measure the DACB output with ADC B</span> =

@@ Line 1,048: / Line 1,048: @@
 '--------------------------------------------------------------------------------
 'setup the ADC-A converter
-Config Adca = Single , Convmode = Unsigned , Resolution = 12bit , Dma = Off , Reference = Int1v , Event_mode = None , Prescaler = 32 , Ch0_gain = 1 , Ch0_inp = Single_ended , Mux0 = 0 'you can setup other channels as well
+Config Adca = Single , Convmode = Unsigned , Resolution = 12bit , Dma = Off , Reference = Int1v , Event_mode = None , Prescaler = 32 ,
 W = Getadc(adca , 0)

@@ Line 1,045: / Line 1,045: @@
 = <span class="f_Header">Example for Single Conversion</span> =
-<span class="f_Header"></span>
+<br/><source lang="bascomavr">
 = <span class="f_Header"></span><span style="font-size: 19px; font-weight: bold;">Example for Free Running Mode</span> =

@@ Line 1,035: / Line 1,035: @@
 = <span class="f_Header">See also</span> =
-[http://avrhelp.mcselec.com/getadc.htm GETADC]&nbsp;,&nbsp;[http://avrhelp.mcselec.com/config_adc.htm CONFIG ADC],&nbsp;[http://avrhelp.mcselec.com/atxmega.htm ATXMEGA]
+[[GETADC]]&nbsp;,&nbsp;[[CONFIG_ADC|CONFIG ADC]],&nbsp;[[ATXMEGA]]
 <span style="font-family: Arial;">&nbsp;</span>