Random

[jgu1]

Hi everyone!

Can anyone help me with an example how to make a random generator with readout on a display or Led output
I've tried with an example from Ver. 3 but it does not work in flowcode v4.

Thanks in advance


Jgu1

[DavidA]

Hello,

If you could include the v3 example you are trying to make work it may be easier to see why that one is not working.

[medelec35]

Hi jgu1,
This might help:
http://www.matrixmultimedia.com/mmforum ... 25&p=23004

[jgu1]

Hello again!

Thank you for your prompt response and examples and they work fine too.
But the example I use is from Bert V. Damm 's book chapter 4.1 in the flow code 3 (Very simple) I have imported and chance the Pic to an Eico 40 in Flow Code v4 and get the following message when I compilers it Eico:


C:\Flow4examples\Random\Random C.c(592:9): error: unknown identifier 'tmr0'
C:\Flow4examples\Random\Random C.c(592:8): error: arguments of 'srand' don't match the parameters of call
C:\Flow4examples\Random\Random C.c(592:2): error: failed to generate expression
Random C.c success

failure

Return code = 1

Flowcode var ude i stand til at kompilere flowchart's C kode pågrund af følgende fejl:


If dit flowchart indeholder C kode, review det nøje. Hvis dit flowchart ikke indeholder C-kode og du virkelig har reviewed koden, kontakt Teknisk.


Can anyone tell what I'm doing wrong.

Thank´s in advance!

Best regard

Jgu1

[medelec35]

Hi jgu1
Just add letter l to C code Block.
Instead of srand (tmr0);
Change to srand (tmr0l);

Some Microcontrollers use tmr0 whist others in particular the newer ones use tmr0l

Note: Since using A cblock containing FCV_RANDOM = rand ();
Simulation result will always be 0 as simulator does not simulate C.


Martin

[jgu1]

Hi medelec!

Unfortunately, it did not work. I get the same error when I try to compile to the Eico.

Regard


jgu1

[medelec35]

Hmm. Odd Compiles for me OK
If this fails then maybe you require an update?

Can you post your Random C.c file and Random C.msg, after compiling with this updated Flowchart.

[Benj]

Hello,

You could try changing the C code icon from "srand (tmr0);" to "srand (tmr0l);"

I think the problem may be due to the fact that the timer0 on the ECIO is a 16-bit timer so there is a high and a low count register instead of a single count register.

[Spanish_dude]

If you're not using the EEPROM of the ECIO you could try my way of having random numbers ?

http://www.matrixmultimedia.com/mmforum ... 004#p22825

[jgu1]

Hi everybody!

Medelec´s example works fine. What I have done wrong, I do not know. I am very grateful for everyone's interest and help.

Thank´s guy´s

jgu1