Search found 11 matches

by emax
Wed Sep 05, 2018 1:59 am
Forum: Other Retro Dev
Topic: AMT630A firmware for mini TFT screens
Replies: 49
Views: 73715

Re: AMT630A firmware for mini TFT screens

Yes, I guess so, too (concerning the first/second step). But 16x9/4x3 does affect the zoom (of the output), doesn't it? Though I guess it might add black borders or the like (when the zooming out too far, ie. when the input buffer did store data outside of the usual screen boundaries). Yeah, changi...
by emax
Fri Aug 24, 2018 12:43 am
Forum: Other Retro Dev
Topic: AMT630A firmware for mini TFT screens
Replies: 49
Views: 73715

Re: AMT630A firmware for mini TFT screens

for vertical scaling I change FD0Ah, now 9Dh and FCC5h/FCC4h = 43Ah.(only for 50Hz) The image is slightly reduced vertically and completely enters the screen. And I little adjust offset and crop. Changing 16x9/4x3 does not matter to zoom input image. In the scaler, as I understand it, there are two ...
by emax
Thu Aug 23, 2018 10:18 pm
Forum: Other Retro Dev
Topic: AMT630A firmware for mini TFT screens
Replies: 49
Views: 73715

Re: AMT630A firmware for mini TFT screens

Last news. 1.–°ombining the PLL multiplier and the total number of points in a line, I achieved a vertical scaling. But to scale horizontally, it is necessary to change the sampling frequency of the input analog signal. I do not know yet how. 2.Strange things: an unknown command (20h to reg FDD0h)all...
by emax
Wed Jul 04, 2018 9:31 pm
Forum: Other Retro Dev
Topic: AMT630A firmware for mini TFT screens
Replies: 49
Views: 73715

Re: AMT630A firmware for mini TFT screens

Do not worry! I have prepared a file to organize the data. About hardware. I have small 4.3" car monitor. Its native firmware - WD-888-V1.0 CRX441.zip Its keyboard have 3 buttons with resistors 1k, 2k, 4.7k, but in another order and another ADC input. Pull-up resistor 12k, so voltage on input of ADC...
by emax
Tue Jul 03, 2018 9:40 pm
Forum: Other Retro Dev
Topic: AMT630A firmware for mini TFT screens
Replies: 49
Views: 73715

Re: AMT630A firmware for mini TFT screens

last three files
by emax
Mon Jul 02, 2018 2:43 am
Forum: Other Retro Dev
Topic: AMT630A firmware for mini TFT screens
Replies: 49
Views: 73715

Re: AMT630A firmware for mini TFT screens

next files
by emax
Thu Jun 28, 2018 8:42 pm
Forum: Other Retro Dev
Topic: AMT630A firmware for mini TFT screens
Replies: 49
Views: 73715

Re: AMT630A firmware for mini TFT screens

Next five files.
by emax
Thu Jun 28, 2018 12:33 am
Forum: Other Retro Dev
Topic: AMT630A firmware for mini TFT screens
Replies: 49
Views: 73715

Re: AMT630A firmware for mini TFT screens

five files per day.
Why No$x51 do not understand asm51 command CJNE ?
by emax
Thu Jun 21, 2018 11:17 pm
Forum: Other Retro Dev
Topic: AMT630A firmware for mini TFT screens
Replies: 49
Views: 73715

Re: AMT630A firmware for mini TFT screens

Wow! It really work. It turns out the pinout AMT630 vs AMT630a is very different.I used the wrong datasheet. Now I have connected pin8 & pin9 with a soldering iron and added resistor between this input and 3.3v, so that the divider voltage falls within the required range. All three buttons work fine...
by emax
Wed Jun 20, 2018 10:15 pm
Forum: Other Retro Dev
Topic: AMT630A firmware for mini TFT screens
Replies: 49
Views: 73715

Re: AMT630A firmware for mini TFT screens

Hello from Russia! I have read about your problem and can help download files from the Russian site. It uses the points system. The beginner is given 50 points, download one file costs 2 points. I have 30 more points left. For uploading 1 file is given 1 point, firmware 5 points, etc. Now I'm workin...
by emax
Sat Jun 09, 2018 1:08 am
Forum: Other Retro Dev
Topic: AMT630A firmware for mini TFT screens
Replies: 49
Views: 73715

Re: AMT630A firmware for mini TFT screens

another one firmware for AMT630 with 1024x600 resolution.