sorry for the bother, but i've tried to read the FAQ for this info,
and have even posted this question on the massena newsgroups without
any response. could someone help me out with either a few pointers
or some info ???
thanks in advance !!!
> quoting myself (from a message to the massena newsgroup programmer.palm)
>
> first, i apologize for the longish nature of this message, but i
> have a couple of questions regarding screen display attributes for the
> palm III/V series. i have looked high and low, and i believe i have
> culled together accurate information, but some affirmation would be
> nice before i get too invested in the development work. a justification
> (so someone with more experience can talk me out of my reasons for doing
> this in the first place) appears at the end for those who care.
>
> as i understand it, the grayscale specs for the III/V series are
> something like:
>
> gray bpp processor
> palm III: 2 dragonball
> palm IIIe: 2 dragonball
> palm IIIx: 4 dragonball EZ
> palm IIIxe: 4 ? dragonball EZ ?
> palm V: 4 ? dragonball EZ
> palm IIIc: 8 (color) dragonball EZ ?
>
> the reason i even bother to include the processor info is because,
> as i understand it, the change to the EZ allowed the move up from 2
> bpp to 4 bpp on the IIIx (and presumeably the IIIxe). thus, if i know
> the IIIxe has a dragonball EZ i know it has a 4 bpp grayscale screen.
> correct ?
>
> next question: how do the screens on the palm V and the palm III
> compare. i have read that the palm V screen is higher contrast than
> the palm III screen, and i am wondering how grayscale display qualities
> might differ between the two units. tidbits like "the sixteen gray
> levels are clearly distinguishable on the palm V screen, while on the
> palm III screen only six or eight gray levels are distinct enough
> to use" would be most helpful.
>
> why do i want this info ? well, i am a (very) new palm developer,
> currently using gcc under linux and strictly emulated (POSE) hardware.
> i am mocking up an application to determine if grayscale is a reasonable
> way to display my data, or if i should just suck it up and go color.
>
> i have access to a palm V for actual testing purposes, but would
> eventually be purchasing a III series, either IIIxe or IIIc, for
> development. this explains the need for information on comparing the
> palm V display to the palm III display. as for the need for grayscale
> ... i believe i will need at least six distinct "grays", but i will
> also be experimenting with various bit mapped representations as well,
> so that number isn't hard and fast. i would like to get this to work in
> grayscale both from the perspective of the number of grayscale machines
> and to control overall cost. if it makes the app more informative or
> drastically easier to use i have no problem requiring that a color
> device be used. the app is targetted at a niche where that is not
> only feasible, but reasonable.
>
> since i have so little (near zero) experience on the platform,
> any information or advice is _greatly_ appreciated. thanks.
>
Dr. erik vogan
Rosenstiel Basic Medical Research Center, room 609
Brandeis University
415 South Street
Waltham, Ma 02454 - USA
phone: (781) 736-4943
fax: (781) 736-2405
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