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git-svn-id: http://moon:8086/svn/matlab/trunk@99 801c6759-fa7c-4059-a304-17956f83a07c
2018-08-30 18:06:49 +00:00
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+## Copyright (C) 2017 Jens Ahrensfeld
+## 
+## This program is free software; you can redistribute it and/or modify it
+## under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 3 of the License, or
+## (at your option) any later version.
+## 
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+## 
+## You should have received a copy of the GNU General Public License
+## along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*- 
+## @deftypefn {Function File} {@var{retval} =} adc_eval (@var{input1}, @var{input2})
+##
+## @seealso{}
+## @end deftypefn
+
+## Author: Jens Ahrensfeld <ahrensfeld@w2ess001vm>
+## Created: 2017-03-07
+
+function [output] = adc_eval (nbits, input)
+
+Vref = 1.0;
+%output = adc_pipelined(Vref, nbits, input)
+output = adc_SAR(Vref, nbits, input)
+
+
+function output = adc_pipelined(VRref, nbits, input)
+	output = zeros(1, nbits);
+	for n=1:nbits,
+		if input >= Vref/2
+			output(n) = 1;
+			input = input - Vref/2
+		end
+		input = input * 2
+	end
+	
+function output = adc_SAR(VRref, nbits, input)
+	Vsar = 0;
+	VStep = VRref/2
+	output = zeros(1, nbits);
+	for n=1:nbits,
+		if input >= (Vsar + VStep)
+			output(n) = 1
+			Vsar = Vsar + VStep;
+		end
+		VStep = VStep / 2;
+	end