From 368bc18eeff26b93e50c67d1e59e9d74899e45f6 Mon Sep 17 00:00:00 2001
From: Loic Delattre <loicdelattre38@gmail.com>
Date: Fri, 28 Apr 2023 14:40:09 +0200
Subject: [PATCH 1/2] CMR func

---
 Matlab/determineArduinoUnoInterruptSettings.m | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 Matlab/determineArduinoUnoInterruptSettings.m

diff --git a/Matlab/determineArduinoUnoInterruptSettings.m b/Matlab/determineArduinoUnoInterruptSettings.m
new file mode 100644
index 0000000..1e948e8
--- /dev/null
+++ b/Matlab/determineArduinoUnoInterruptSettings.m
@@ -0,0 +1,33 @@
+## Copyright (C) 2023 Loic
+##
+## 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 <https://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn {} {@var{retval} =} determineArduinoUnoInterruptSettings (@var{input1}, @var{input2})
+##
+## @seealso{}
+## @end deftypefn
+
+## Author: Loic <Loic@LAPTOP-1F7SF0F7>
+## Created: 2023-04-28
+
+function retval = determineArduinoUnoInterruptSettings (Fs)
+
+freqClock = 16*10^6;
+preDiv = [1, 8, 32, 64, 128, 256, 1024];
+CMR = [];
+
+for i = 1:length(preDiv)  
+  CMR(i) = freqClock/(preDiv(i)*Fs)-1;
+endfunction

From 6de8ddfbc9ee82ecd2050ad45a0598dc6da4cc41 Mon Sep 17 00:00:00 2001
From: Loic Delattre <loicdelattre38@gmail.com>
Date: Fri, 28 Apr 2023 15:03:38 +0200
Subject: [PATCH 2/2] function done and script

---
 Matlab/determineArduinoUnoInterruptSettings.m | 25 ++++++++++++++++---
 Matlab/testArduinoUnoInterruptSettings.m      |  8 ++++++
 2 files changed, 29 insertions(+), 4 deletions(-)
 create mode 100644 Matlab/testArduinoUnoInterruptSettings.m

diff --git a/Matlab/determineArduinoUnoInterruptSettings.m b/Matlab/determineArduinoUnoInterruptSettings.m
index 1e948e8..afd69d9 100644
--- a/Matlab/determineArduinoUnoInterruptSettings.m
+++ b/Matlab/determineArduinoUnoInterruptSettings.m
@@ -22,12 +22,29 @@
 ## Author: Loic <Loic@LAPTOP-1F7SF0F7>
 ## Created: 2023-04-28
 
-function retval = determineArduinoUnoInterruptSettings (Fs)
+function sol = determineArduinoUnoInterruptSettings (Fs, bitSize)
 
 freqClock = 16*10^6;
-preDiv = [1, 8, 32, 64, 128, 256, 1024];
-CMR = [];
+preDiv8 = [1, 8, 64, 256, 1024];
+preDiv16 = [1, 8, 32, 64, 128, 256, 1024];
+if bitSize == 16
+  preDiv = preDiv16;
+elseif bitSize == 8
+  preDiv = preDiv8;
+endif 
+
+sol = [];
+itr = 1;
 
 for i = 1:length(preDiv)  
-  CMR(i) = freqClock/(preDiv(i)*Fs)-1;
+  CMR = freqClock/(preDiv(i)*Fs)-1;
+  if round(CMR)-CMR == 0 && CMR < (2^bitSize -1)
+    CMR
+    sol(itr) = preDiv(i);
+    itr ++;
+  endif
+endfor
+if itr == 1
+  disp("no solution");
+endif
 endfunction
diff --git a/Matlab/testArduinoUnoInterruptSettings.m b/Matlab/testArduinoUnoInterruptSettings.m
new file mode 100644
index 0000000..8fffbd7
--- /dev/null
+++ b/Matlab/testArduinoUnoInterruptSettings.m
@@ -0,0 +1,8 @@
+clear all
+close all
+clc
+
+Fs = 2000; %Hz
+bitSize = 8; %bitset
+
+determineArduinoUnoInterruptSettings (Fs, bitSize)
\ No newline at end of file