Hi, I think there is not possiblity to improve that in soft. Could you confirm that you can not add a 7-segment drivers? BR Bertrand Rozier www.pragmatec.net PICOS18 Solutions Selon Andre Miller : > Hi, >=20 > If I increase the 'on' time for a display, wont this then also increase= the > 'off' time for the other displays, thereby negating the benefit? I shou= ld be > able to get this same effect by increasing the prescaler on my timer > interrupt that drives the displays. I tried changing this and the lower > frequency of updating didn't seem to make a difference, except that it > starts to flicker noticibly when its too low :-). >=20 > _____=20 >=20 > Andr=E9 Miller =09 >=20 >=20 > -----Original Message----- > From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.ED= U] On > Behalf Of Spehro Pefhany > Sent: 17 March 2004 12:31 PM > To: PICLIST@MITVMA.MIT.EDU > Subject: Re: [PIC:] Multiplexing seven segment displays, correct resist= or > values? >=20 > At 08:12 PM 3/17/2004 +1000, you wrote: >=20 > > If you have the time to spare, leave the leds on for a while, few mS= ,=20 > >then switch to the next segment, and so on. > > In other words, increase the "on" time compared to the off time. > > Only works if your chip hasn't much else to do. >=20 > He's using interrupts, so his program can walk and chew gum at the same > time, no problem. It shouldn't use more than a couple percent of the > processor throughput. >=20 > Best regards, >=20 > Spehro Pefhany --"it's the network..." "The Journey is the > reward" > speff@interlog.com Info for manufacturers: http://www.trexo= n.com > Embedded software/hardware/analog Info for designers: http://www.spef= f.com >=20 > -- > http://www.piclist.com hint: PICList Posts must start with ONE topic: > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads >=20 -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads