Hi Vasi, I like what you done. 2010/7/28 vasi vasi <[email protected]>
> Hi Joep and Vasile, > > This is the scrolling text: > "HELLO JOEP And VASILE _ THIS USE Your LibrArY" > > http://www.youtube.com/watch?v=RatJm6wGxpI > > I wanted to learn how to use 4 digits as a decent display and for this, I > used also timer0_isr_interval.jal (to light another 8 LED's at different > speed) because I don't know yet another method of "multitasking". > I use FreeJALduino with EvB 4.3 version 4 board (with already bricked > ATmega :( ) and entire assembly draws very much current, the onboard 5V > regulator gets very very HOT. An external source of 5V is obligatory for > this kind of application. > Anyway, the conclusion is: It is too much trouble and too many pins > allocated for this task. It require a separate microcontroller for this and > in this case, you can transmit data on serial. For 4 digits and 8 LEDs I > used all available pins on FreeJALduino and the DOT from digits remained > unconnected. But the experience gained is invaluable. > > The segments get lighted on 0 logic and also digit selection is made with 0 > logic (I don't know how to draw a schematic for this). The LED's are lighted > also on 0 logic (this is easy, but program inside is for 1 logic - I must > negate the byte). In the movie, the digits are lighted one at the time, > 350uS long each but I modified the program for 950uS each to get rid of that > echo. If is useful, I think it can be easily modified for Jaluino. All > required files attached. > -- > Vasi > > -- > You received this message because you are subscribed to the Google Groups > "jallib" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<jallib%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/jallib?hl=en. > -- You received this message because you are subscribed to the Google Groups "jallib" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/jallib?hl=en.
