Perfect. This will be included in the next release. Thank you.
On Thu, Nov 1, 2012 at 2:32 PM, Maxime Soulé <[email protected]>wrote:
> Hi Paul,
>
> I just tested the feature, sorry for the delay, and it does not work.
>
> The attached patch correct the problems :
>
> 1. as specified in the documentation I set redefchar and redefchar_hex
> under LCD_H directory, as LCD did not exist;
>
> 2. redefchar_hex was not declared with the correct data length
> (LCD_REDEFCHAR_LENGTH_HEX);
>
> 3. in FS_redefchar_hex the buffer passed to OW_redefchar was not the
> converted one.
>
> Best regards,
>
> Max.
>
> Le 27.05.2012 00:11, Paul Alfille a écrit :
> > Thank you. It's always great to get a patch, especially for a new
> > feature like this.
> >
> > Added to the next release, with a slight change. Instead of a single
> > string that includes the character number, we will have an array of 8,
> > one for each user-redefinable character. This matches owfs style better.
> >
> > Paul Alfille
> >
> > On Sun, Mar 11, 2012 at 7:48 AM, Maxime Soulé <[email protected]
> > <mailto:[email protected]>> wrote:
> >
> > Hi,
> >
> > This patch add a new file to the DS2408 LCD_H/ directory: redefchar
> >
> > It allows to redefine up to 8 chars corresponding to the ASCII codes
> > 0 to 7. Once the chars are redefined, they can be displayed with
> > screen* functions.
> >
> > The format of the entry follows:
> > - each character definition is 17 bytes long (several characters can
> > be defined at one time by concatenating their definition)
> > - first char is the index of the redefined character: '0' -> '7'
> > (human form) or '\0' -> '\10' (binary form)
> > - 16 others define the 8 lines of each character, a pair of
> > hexadecimal digit for each char between "00" and "1F" (or "1f", but
> > see the note at the end). When a bit is set the corresponding pixel
> > is on. For example:
> >
> > 18421 <- bits columns
> > ..... => "00"
> > ..#.. => "04"
> > .#.#. => "0A" (because 8 + 2)
> > #...# => "11"
> > #...# => "11"
> > .#.#. => "0A" (because 8 + 2)
> > ..#.. => "04"
> > ..... => "00"
> >
> > So to define this character on ascii code '\1', we will use the
> > string: "100040A11110A0400"
> >
> > Other examples:
> > - an empty square on char '\6': "61F1111111111111F"
> > ##### => "1F"
> > #...# => "11"
> > #...# => "11"
> > #...# => "11"
> > #...# => "11"
> > #...# => "11"
> > #...# => "11"
> > ##### => "1F"
> >
> > - a hourglass on char '\3' : "31F1F0E04040E1F1F"
> > ##### => "1F"
> > ##### => "1F"
> > .###. => "0E"
> > ..#.. => "04"
> > ..#.. => "04"
> > .###. => "0E"
> > ##### => "1F"
> > ##### => "1F"
> >
> > - both in one write : "__61F1111111111111F31F1F0E04040E__1F1F"
> >
> > Note that if redefined chars are already displayed on the LCD,
> > redefining them again will change all of them on the display. This
> > behavior is hard-coded in the LCD.
> >
> > Note that one can redefine the character '\0' but it is not always
> > easy to manipulate it and/or to display it due to libraries or
> > interfaces constraints (like null terminated string handling)...
> >
> > Lastly, this code use the function hex_digit() in ow_bae.c. This
> > function does not work well for lower case hexadecimal digits,
> > except if you apply the "ow_bae.c patch" I posted this morning.
> >
> > Best regards,
> >
> > Max.
> >
> >
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