logs archiveBotHelp.net / Freenode / #43oh / 2015 / August / 4 / 2
membiblio
I am. :)
Rickta59
i guess that explains the nap
: )
membiblio
I even played with a DEC pdp 8a and later 11 with a big assed hard drive
it was probably 1mb :)
Ya
Rickta59
i don't think i ever used one of those ..
pdp-11 ...
membiblio
Wait - are you older than me? I'm 51 born in 64
Rickta59
vax .. no pdp-8
membiblio
Were you born in 59?
Rickta59
yeah
membiblio
bi**h, you be older than me :)
Rickta59
i'm not taking a nap bi**h
membiblio
:)
Rickta59
:)
membiblio
Ok later gator
Rickta59
cya
membiblio
Ok you have me laughing
tty soon
Rickta59
hmm .. new libmsp430.so
vigs
Link doesn't work :|
MrMobius
so i hooked up four of those MCP23S17 to an MSP430
and i drive them or read them from a GUI
so i have 64 lines. hopefully no more random LEDs for various status things
like monitoring address buses and driving a data bus
Rickta59
25mA per pin?
* hadn't seen these before
MrMobius
Rickta59, they are very handy. i used them on my first 6502 project
yay, got this LCD running on the first try
username2
MrMobius, nice! which one?
MrMobius
3.2 inch TFT
username2
MrMobius, do you know which driver IC?
I use the SD1289 3.2s . there nice but poor viewing angle :(
MrMobius
ya SSD1289
its this one http://www.ebay.com/itm/281241885594?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
does yours run at 5v?
username2
Ahhh yup thats the one i'm referencing
those can be configured a lot of ways
mine runs @ 3V
but some run @ 5V
some colors don't show up depending on how you tilt the screen
looking for a better equivalent price alternative
MrMobius
it has a 5v pin and Gnd then 16 data pins then a few SPI pins for touch screen and a 3.3v pin
ya this is the first time ive done anything with one like this
username2
there a lot of other screens like it
MrMobius
is there any way to tell? it has a 5v pin and i would like to send 5v signals
username2
sad thing is, they ALL pretty much have different init sequences
umm
not a good way to tell
things not standardized. Maybe if your lucky you will find a datasheet
MrMobius
so what do you do? run it until it breaks?
username2
I run it at 3.3V :P
MrMobius
im hoping a 5v power pins means 5v signals are ok
username2
and I had a datasheet that said it was okay
Xark
I like https://www.tindie.com/products/mmm999/22-inch-serial-tft-spi-lcd-screen-module-hd-240-x-320-5110-compatible/ (3.3v with decent controller - and SD card slot). :)
MrMobius
ya i wouldnt worry about lower voltage as long as it works
username2
Xark, how is the viewing angle?
i've been eyeing that display for awhile
3.2 size is reallly nice to have though
kinda like the magic best size for hobby projects. 4.2 being overboard, 2.2 being just too small
Xark
username2: Pretty good. Really good horizontally and decent vertically (starts to get washed out, but still pretty readable).
Yeah, this is a tad small, but works nicely on breadboard.
I also like SPI interface (+ one DC line).
username2
Xark, makes sense. The SD1289 is an ancient driver. Usally the driver IC is reflective of the display age which is generally reflective of the quality
ILI9340C is a bit newer
Xark
Yeah. Handles rotation in hardware which is nice.
username2
well... u mean theres software registers you can write to in order to change the addressing system
which is common :)
be neat if there was a built in acceleromter to handle rotation haha
The PSP display is 4.2" and that is a verrrryy high quality modern display. There people selling those with a logic interface board for around 25usd if I remember correctly
Xark
Same controller as is in this shield (which is a bit bigger and higher quality - but $$). https://www.adafruit.com/products/1651
PSP is interlaced though...
username2
<Xark> wouldn't it still beat the crap out of these old PDA displays though?
Xark
Probably. :)
I haven't seen ones for MCU, just some FPGA hacks with PSP display.
I need a module, I do not want to have to fiddle with these flex cables. :)
username2
yea, so , can't remember the site, but there is a china site that sells the display + an interface board so its just your traditional parallel
no LVDS or anything fancy required
search displays on hackaday if your interested, someone was using it
Xark
Interesting. Have you seen http://www.buydisplay.com/ ?
Hmm, they have some displays similar to PSP one http://www.buydisplay.com/default/tft-display/4-3-inch
username2
hah woops 4.3*
yup that is the site
Xark
Yeah, looks just like what you were describing http://www.buydisplay.com/default/4-3-tft-lcd-display-module-controller-board-w-serial-spi-i2c-mcu
username2
yea, going to buy a bunch of displays off that site to see if there any gems
drives me nuts to see so many inane quality LCDs being sold on ebay for like 2 USD
but the driving is all properitary so you can't really easily use them
anyhow, time to sleep
Xark
I also have https://www.tindie.com/products/RobG/color-lcd-booster-pack-320x240-with-microsd-card-socket :)
Okay, nite.
username2
yup, I got one of those as well :)
good ole robGs booster packs
his nixy kit is insane, don't know how he finds the time to kit that
https://www.tindie.com/products/RobG/msp430-nixie-clock-kit/
super nice kit though, love mine
Xark
Neat. :)
MrMobius
username2, do you put an external resistor on the backlight?
username2
MrMobius, TBH I don't. I use PWM. However, I reccomend using a resistor... & PWM
Rickta59
got it working with your 6502 MrMobius ?
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