A Sub-circuit is a stand alone circuit function consisting of a software module and schematic.

Display 6-dig 7-seg (com anode)

Description
Six digit 7-segment multiplexed decoded common anode display.

Software functions

MUXD_PUTC(c)     : Print character to display.
Printable characters are: 0123456789.-Er<space><CR>
Cursor is auto incremented to the next digit except in 
the case of decimal point.
CR (0x0D) cariage return moves cursor to home position.
None-printable characters are shown as 3 horizontal bars
(segments a,g,d).

Example - the following will print "12.3456"
     MUXD_CURHOME();
     printf(MUXD_PUTC, "12.3456");

MUXD_CURHOME()   : Move cursor to home position
MUXD_DO()        : Refresh display. Call every 10mS (max)
MUXD_CLEAR()     : Clear display

I2C 4-Digit mux display

Description
I2C 4-Digit mux display derived from project I2CMUXD.QPR

Software functions

I2CMUXD_PUTC(c) : write character to display
ie ascii 0123456789.-Er<space><CR>

I2CMUXD_GETC() : read character last writen
I2CMUXD_CLEAR() : clear display
I2CMUXD_CURHOME() : home cursor

Schematic