d2k Posted November 29, 2003 Report Share Posted November 29, 2003 Hi...I've got this schem done for the beats/smpte display on the LC/MC using 2 MAX7219's (as suggested on a thread from before as i remember)...Is it okay? If all is good I can test as soon as :)BestD Quote Link to comment Share on other sites More sharing options...
TK. Posted November 30, 2003 Report Share Posted November 30, 2003 I already wrote this in a PM, but it could be interesting for everybody:The 7219 gives you no advantage compared to the already existing solution (http://www.ucapps.de/mios/leddigits_16.pdf) which will be integrated into the MIDIbox LC sooner or later.The 7219 is something like a serial 16 bit register with command interface. Two of them allocate 32 bits in a serial chain, and this is exactly the same number which is allocated by the leddigits_16 module.But the driver for a 7219 is totally different - and thats an disadvantage.So, the use of a 7219 makes only sense if enough pins are free to drive this serial chain seperately. And this isn't the case for MIDIbox LC (assumed that a KS0108 display is connected).Btw.: the driver is similar to that used by mbhp_aoutBest Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
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