Hello every one
I want to read 8 digital inputs at the same time in Simulink but the Simulink did not read at the same time.
some years ago when I used the Arduino library in Simulink there was a block that name was "Real-Time Pacer", I think this block was solving this problem.
but now I could not find this block in the library of Arduino in simulink.
could you help me?
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What is "reading at the same time"?
A code could be like: int var1 = analogRead(aPin1); int var2 = analogRead(aPin2); int var3 = analogRead(aPin3);
Each reading takes some time.
Reading at exactly the same time calls for a lot of external electronics.
Thank you for answering
I will read by Simulink.
I am reading an absolute encoder. this absolute encoder has 10 outputs which I am reading through 10 inputs of Arduino in Simulink.
when I turn the encoder the outputs change. so if Simulink did not read all input at the same time the sum of the value of output will be rung for a short time and after it will be true. for example, assume now below output is on:
Pin0=0
Pin1=0
Pin2=0
Pin3=0
Pin4=0
Pin5=0
Pin6=0
Pin7=1
Pin8=0
Pin9=0
so the value of encoder is (01+02+04+08+016+032+064+1128+0256+0512) = 128
when i will turn absolute and assume next arrangemnet is as below:
Pin0=0
Pin1=0
Pin2=0
Pin3=0
Pin4=0
Pin5=0
Pin6=0
Pin7=0
Pin8=1
Pin9=0
now the value is 256
but because of not reading at the same time all input,
in a short time, Simulink read Pin7 = 1 and pin8 =1 so the output is 128+256=384 but after for example 0.1 sec the value goes to 256.
as I said before there was a block "Arduino pacer" and this block does this job. but now in the new version of the Arduino library, I don't find this block.
I think You've got it!
The only way to read "all inputs" at the very same time is reading an entire 8 bit port. 10 bits parallell reading, in an Arduino, looks impossible to me.
I don't know Simulink but it sounds like a simulator running on a Pc. What good is simulation if the microcontroller can't do the job fully?
I think I must in the microcontroller get all input and insert into a variable and then get variable value by Simulink. I don't know Simulink can do it or not.
but for me this is very interesting in old Arduino library for Simulink there was a block that name was pacer and this block did this job but know it is not in new library.
I just corrected the very last sentence in the previous reply!
It tells "can't do...".
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