MAX 7219 Cascading Problems
Archiver
Posts: 46,084
Hi
>
>I'm having the same problem as a few people in the eGroup Archieves,
can you help ?
>
>I have 16 MAX 7219 cascaded and have random data after about the 8th
max7219's
>
>Is there a reason for this and a solution ?
>
>My thoughts where,
>
>1. may be my data bus was to long and picking up noise
>2. Need more Decoupling at the BS2 to drive the paralleled CLK and
>LOAD
>
>Require a solution urgently, any help would be appreaciated.
>
>P.s MAXIM tell me there should be no limit to the number of MAX you
>can Casacade
>
>Cheers Chris
>
>I'm having the same problem as a few people in the eGroup Archieves,
can you help ?
>
>I have 16 MAX 7219 cascaded and have random data after about the 8th
max7219's
>
>Is there a reason for this and a solution ?
>
>My thoughts where,
>
>1. may be my data bus was to long and picking up noise
>2. Need more Decoupling at the BS2 to drive the paralleled CLK and
>LOAD
>
>Require a solution urgently, any help would be appreaciated.
>
>P.s MAXIM tell me there should be no limit to the number of MAX you
>can Casacade
>
>Cheers Chris