displays

[jcleaver]

looking for something that would provide txet display for those of us that have trouble seeing small type would like to drive from a pic have good brightness and size any suggestions?

same subject different track do the make something that can superimpose
text on a tv screen

again pic driven

thanks

[paul borgmeier]

http://www.blackboxcamera.com/Stv5730a/demo_code.htm
http://www.decadenet.com/bob2/bob2.html
http://www.icircuits.com/prod_osd232.html
http://home.surewest.net/dnh/io/vid3.html
http://www.linuxdocs.org/HOWTOs/Access-HOWTO-3.html (LaTeX)

some ideas?

[jcleaver]

great help appreicate you take the time
links were perfect to get me started

ty

[paul borgmeier]

In the last three years or so, one of the hobby journals (popular electronics, nuts and volts, circuit cellar, or every day practical electronics) had an article on adding text to video via microcontroller. I cannot remember the issue and will look - maybe someone else remembers?

[Archangel]

looking for something that would provide txet display for those of us that have trouble seeing small type would like to drive from a pic have good brightness and size any suggestions?

same subject different track do the make something that can superimpose
text on a tv screen

again pic driven

thanks

Vacuum Flourscent Displays - there are some available that are pin for pin interchangable with LCDs, if you want really large VFDs then get a POS display like the grocery store uses, cheap on ebay - rs232 compatable.
JS

[jcleaver]

thinking about going to 4 line display
know the first line 1 second line $c0
can someone help with the 3 and fourth line commands

dont see in manual pbp

[BobK]

Hi Jack,

Just like the RTC constants, you can set them for the displays:

I CON 254 'Control byte
Clr CON 1 'Clear the display
Line1 CON 128 'Point to start of Line 1
Line2 CON 192 'Point to start of Line 2
Line3 CON 148 'Point to start of Line 3
Line4 CON 212 'Point to start of Line 4

Example:

LCDOut I,Clr
LCDOut I,Line1,"Breckenridge Village"
LCDOut I,Line3+2, hex2 mon, "/", hex2 date, "/", hex2 yr, " ", HEX2 hr, ":", HEX2 MINs

Notice the "Line3+2" This says to move the cursor in 2 spaces

By the way, the project that this code example came from uses a Noritake VFD display. Nice and bright-you can miss it! It does draw power though, about 250ma if I remember properly.


HTH,

BobK

[jcleaver]

bob thanks for the info
however these lcd commands do not work with my pbp
get all type of errors
any ideas?
appreicate your help
example of mine is

lcdout $fe,1 first line
lcdout $fe,$c0 second line

seems to be hanging up on expression line 3+2
has this something to do with setting the display for 4 lines or?

never mind got it was not defineing var works now
going to glue my toes back on (ha ha)
thanks again for your time and effort

[mister_e]

Which error message you get?

        '
        '       LCD setup
        '       =========
        DEFINE LCD_DREG PORTB               ' LCD data port
        DEFINE LCD_DBIT 0                   ' LCD data starting bit
        DEFINE LCD_RSREG PORTB              ' LCD register select port
        DEFINE LCD_RSBIT 4                  ' LCD register select bit
        DEFINE LCD_EREG PORTB               ' LCD enable port
        DEFINE LCD_EBIT 5                   ' LCD enable bit
        DEFINE LCD_BITS 4                   ' LCD data bus size
        DEFINE LCD_LINES 4                  ' Number lines on LCD
        DEFINE LCD_COMMANDUS 2000           ' Command delay time in us
        DEFINE LCD_DATAUS 50                ' Data delay time in us

        Pause   500                         ' LCD startup delay        
        LCDOUT  $FE,  1,"LINE 1",_
                $FE,$C0,"LINE 2",_
                $FE,$94,"LINE 3",_
                $FE,$D4,"LINE 4"
SpinHere:
        goto spinhere

It's written black on white in the manual, or in the MicroCode Studio Help.

[jcleaver]

got this ok thanks for the different spin

another question
when i try to use mpsam for a assembler

get a whole bunch of error messages most error 113 symble no previously defined
complies fine not using mpsam dont know if this is a problem or not

again thanks to all of you that help us out

[Archangel]

bob thanks for the info
however these lcd commands do not work with my pbp
get all type of errors
any ideas?
appreicate your help
example of mine is

lcdout $fe,1 first line
lcdout $fe,$c0 second line

seems to be hanging up on expression line 3+2
has this something to do with setting the display for 4 lines or?

never mind got it was not defineing var works now
going to glue my toes back on (ha ha)
thanks again for your time and effort

Hi Jack,
if you have trouble dealing with hex use decimal like this:

LCDOUT 254,1    ' Clears Display
LCDOUT 254,128,"Here's how to output"
LCDOUT 254,192,"Strings from code"
LCDOUT 254,148,"space easily !"
LCDOUT 254,212,"Where you put it"

now say you want line three to move over 4 spaces, just add as so:
LCDOUT 254,152,"space easily!" same as LCDOUT 254,148 + 4,"space easily!"
JS