Search found 10 matches

by bobgardner
Wed Jun 05, 2019 11:26 am
Forum: EVE2 & EVE3 SPI TFT's
Topic: Make EVE2-29A look like a green crt display
Replies: 16
Views: 974

Re: Make EVE2-29A look like a green crt display

Good explanation of scaling. Either add that to the manual, or make it a sticky note at the top of the forum. Now that I have demonstrated a 'proof of concept', we will buy a used KLN90 from ebay and pull the crt and power supply and the gps rf stuff out of it and stick in the eve tft. Waiting for t...
by bobgardner
Tue May 28, 2019 2:11 pm
Forum: EVE2 & EVE3 SPI TFT's
Topic: Make EVE2-29A look like a green crt display
Replies: 16
Views: 974

Re: Make EVE2-29A look like a green crt display

Thanks for that reply. I spent a while over the holiday converting the wr32 style to the Send_CMD style, and I did notice that if we use BILINEAR instead of NEAREST it got rid of the lines that had scaled to 2 pixels when trying to scale it up. How in the heck did you get the equation for transform ...
by bobgardner
Thu May 23, 2019 6:57 pm
Forum: EVE2 & EVE3 SPI TFT's
Topic: Make EVE2-29A look like a green crt display
Replies: 16
Views: 974

Re: Make EVE2-29A look like a green crt display

Hi Daniel. 8:30 Thurs evening, at home. I see how you did the scaling. I left the rig on my bench at work, will load it tomorrow. The target hardware will receive 2 udp pkts ea with half the screen. This is essentially the point right after the raw file is loaded from the sd. I tried a bunch of edit...
by bobgardner
Thu May 23, 2019 1:06 pm
Forum: EVE2 & EVE3 SPI TFT's
Topic: Make EVE2-29A look like a green crt display
Replies: 16
Views: 974

Re: Make EVE2-29A look like a green crt display

Notice how I got it to flip 180 deg?
by bobgardner
Thu May 23, 2019 1:05 pm
Forum: EVE2 & EVE3 SPI TFT's
Topic: Make EVE2-29A look like a green crt display
Replies: 16
Views: 974

Re: Make EVE2-29A look like a green crt display

Picture of screen attached
by bobgardner
Thu May 23, 2019 11:13 am
Forum: EVE2 & EVE3 SPI TFT's
Topic: Make EVE2-29A look like a green crt display
Replies: 16
Views: 974

Re: Make EVE2-29A look like a green crt display

What I have working is loading the raw file from sd using your make_bitmap_dl example. I cant get the scale to work yet. ---------------------------------------------------- case SCR_KLNFLASH: MakeScreen_KlnFlash(); //loads 208x86 klntestrawh.c from flash no work file attached break; case SCR_KLNFLA...
by bobgardner
Wed May 22, 2019 5:51 pm
Forum: EVE2 & EVE3 SPI TFT's
Topic: Make EVE2-29A look like a green crt display
Replies: 16
Views: 974

Display 208x86 1bpp on 320x102 eve2-29a

I have seen a black and white bitmap on the eve screen. Here's how to replicate this experiment. My original file was a 1bpp tif. Use irfanview to save this as a png. The 208x86 file is 2236 bytes, has a stride of 26 bytes. You then run it thru "img_cvt -i test.png -f 1" and it makes test.rawh. This...
by bobgardner
Tue May 21, 2019 1:27 pm
Forum: EVE2 & EVE3 SPI TFT's
Topic: Make EVE2-29A look like a green crt display
Replies: 16
Views: 974

Re: Make EVE2-29A look like a green crt display

Hi Daniel. I have been trying to display that 208x86 welcomepage.tif onto the eve display. I used irfanview to cvt it to welcompage.png. It was still the same size, about 3k. (should be 2236 bytes, 8 pixels per byte. This is L1 format right?). I ran img_cvt -i welcomepage.png -f 1 -d (I thought the ...
by bobgardner
Tue May 14, 2019 6:20 pm
Forum: EVE2 & EVE3 SPI TFT's
Topic: Make EVE2-29A look like a green crt display
Replies: 16
Views: 974

Make EVE2-29A look like a green crt display

Howdy to Daniel and Henri and anyone who has an idea how to solve this problem. I have a green crt that is 208x86 (17888pix, 2236 bytes). I have a bunch of screenshots that I receive in 2 hunks, 1118 bytes each. These dots fill the crt screen nicely. The Matrix Orbital EVE2-29A TFT fits into the spo...
by bobgardner
Thu May 09, 2019 12:07 pm
Forum: EVE2 & EVE3 SPI TFT's
Topic: EVE2-29A-BLM-TPN Configuration
Replies: 15
Views: 3255

Re: EVE2-29A-BLM-TPN Configuration

I just got an eve2-29a and right on the package it said Caution! 3.3V power only. I read all the msgs in this thread and the MO dudes didnt aks the question about what did the voltmeter say when you put it across vcc. If it said 5.0V, no woder they dont work.