I Have to represent one 16 bit integer variable "count" and to transform it in bcd (denied) to control 6 contraves of a receiver.
Every contraves has 4 terminals and they are connected with four multiplexer 4512BE.
My problem is:
1- It's usefull to use pic 16f877A while connecting a lot of CPU pins (6x4=24 terminals) in order to obtain
in output the direct command of the contraves or
2- to use an external converter binary/BCD or
3- to serializzare all (with 74HC595).
Surely it is also necessary to use a buffer for having 5V of output.
I use miKrobasic or in alternative the c.
Thanks of the eventual suggestion or clarification.
Every contraves has 4 terminals and they are connected with four multiplexer 4512BE.
My problem is:
1- It's usefull to use pic 16f877A while connecting a lot of CPU pins (6x4=24 terminals) in order to obtain
in output the direct command of the contraves or
2- to use an external converter binary/BCD or
3- to serializzare all (with 74HC595).
Surely it is also necessary to use a buffer for having 5V of output.
I use miKrobasic or in alternative the c.
Thanks of the eventual suggestion or clarification.