Loop problems?

[Rabbit]

Hello,
I wrote a little Programm (FC5) for switching LEDs on/off.
The delay between on/off is 1 second. A loop while was inserted after "start" and before "end".
The simulation is running well. Compiler message is ok.
My problem: the real LEDs are continous on.
It seems the loop will be ignored at the PIC 16F88.

What may be wrong?

Thank you very much in advance.
Rabbit

[JonnyW]

Hello.

I think what is most likely the case is you do:

Code: Select all

  loop
    led_on
    delay
    led_off
  end_loop

In this case there is a delay before 'off' but not one before 'on' - on HW this will appear to be continuously on. Add a second delay after 'led_off' to sort this. Like below.

Code: Select all

  loop
    led_on
    delay
    led_off
    delay
  end_loop

If this is not the issue, please post your flowchart and we can have a look.

Cheers,

Jonny

[Rabbit]

Hello Jonny,
Thanks for your answer. I have two "wait" in my little programm.

How can I post my flowchart here in the forum?

Now I changes the delay-time from 1 second to 1 millisecond and the LEDs are flashing with about 1 Hz.
So I think there is a little bug at the compiler.
I use flowcode V5.1.0.0 (10.02.2012)

Best regards
Rabitt

[Benj]

Hello,

My guess is that your settings in Flowcode are not set up correctly for your hardware. Please check the clock speed specified in the project options window and also check the configuration settings are correct for your hardware setup.

[Rabbit]

Hello,
I've found my bug: the missing OUT-channel RB3 was used as ICSP-programming-pin in the project options.
I disabled low-voltage-programming and all output-pins at Port-B are available.

Regards Rabbit