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| author | vikle012 <viktor.leek@liu.se> | 2019-09-11 13:57:14 +0200 |
|---|---|---|
| committer | vikle012 <viktor.leek@liu.se> | 2019-09-11 13:57:14 +0200 |
| commit | e66efbbe8df2dd4e7de0a1e9bd129cf92e00f92f (patch) | |
| tree | 5ec35be0c219a2e6b017e12e450e76157b9de044 /Kod/bilbana/IOFunctions/get_car_position.m | |
| download | tfyy51-e66efbbe8df2dd4e7de0a1e9bd129cf92e00f92f.tar.gz | |
Initializes repo.
Diffstat (limited to 'Kod/bilbana/IOFunctions/get_car_position.m')
| -rw-r--r-- | Kod/bilbana/IOFunctions/get_car_position.m | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/Kod/bilbana/IOFunctions/get_car_position.m b/Kod/bilbana/IOFunctions/get_car_position.m new file mode 100644 index 0000000..ef68fc2 --- /dev/null +++ b/Kod/bilbana/IOFunctions/get_car_position.m @@ -0,0 +1,81 @@ +function [add_lap,add_check_point,elapsed_time_check_point] = get_car_position(track)
+%GET_CAR_POSITION Reads the current values of the lap and check point
+%counters, and resets them if they are not equal to zero.
+%
+% Tobias Lindell 2013-02-13
+
+global mytaskh
+global lib
+
+switch nargin
+ case 1
+ add_lap = [];
+ add_check_point = [];
+ elapsed_time_check_point = [];
+
+ if isempty(mytaskh)
+ disp(['User needs to initialize counters for track ',num2str(track),' before getting car position!'])
+ clearvars -global mytaskh lib
+ return
+ end
+
+ switch track
+ case 1
+ if isfield(mytaskh,'ctr_1')
+ add_check_point = DAQmxReadCounterScalarU32(lib,mytaskh.ctr_1);
+ add_lap = DAQmxReadCounterScalarU32(lib,mytaskh.ctr_2);
+ read_ticks = DAQmxReadCounterScalarU32(lib,mytaskh.ctr_3);
+ else
+ disp(['User needs to initialize counters for track ',num2str(track),' before getting car position!'])
+ return
+ end
+ case 2
+ if isfield(mytaskh,'ctr_5')
+ add_check_point = DAQmxReadCounterScalarU32(lib,mytaskh.ctr_5);
+ add_lap = DAQmxReadCounterScalarU32(lib,mytaskh.ctr_6);
+ read_ticks = DAQmxReadCounterScalarU32(lib,mytaskh.ctr_7);
+ else
+ disp(['User needs to initialize counters for track ',num2str(track),' before getting car position!'])
+ return
+ end
+
+ otherwise
+ disp('Wrong track number sent to get_car_position!')
+ return
+ end
+
+ if add_check_point || add_lap
+ elapsed_time_check_point = read_ticks / 100;
+ start_race(track);
+ clear read_ticks
+ end
+ otherwise
+ disp('Wrong number of input arguments sent to get_car_position(track)! Should be 1!')
+end
+end
+
+function Data = DAQmxReadCounterScalarU32(lib,taskh)
+% function taskh = DAQmxReadCounterScalarU32(lib,taskh)
+%
+% this function reads a counter value from previously setup task
+%
+% inputs:
+% lib - .dll or alias (ex. 'myni')
+% taskh - taskhandle of analog inputs
+%
+%
+% written by Tobias Lindell
+% inspired by Nathan Tomlin (nathan.a.tomlin@gmail.com)
+% v0 - 1302
+
+DAQmx_Val_WaitInfinitely = -1.0;
+
+reserved = [];
+reserved_ptr = libpointer('uint32Ptr',reserved);
+Data = 1;
+data_ptr = libpointer('uint32Ptr',Data);
+calllib(lib,'DAQmxReadCounterScalarU32',taskh,DAQmx_Val_WaitInfinitely,data_ptr,reserved_ptr);
+counter = get(data_ptr);
+Data = counter.Value;
+end
+
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