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]. For more options, visit this group at http://groups.google.com/group/jallib?hl=en.
freejalduino4.jal
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seven_segment.jal
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scroll_on_seven_seg.jal
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