Алексей

Can there be someone to make a board for ATARI at once with all these improvements? So many improvements and wires

I'll be ordering boards for the new release soon.

I added a keyboard click.

update Recorded for comparison - DAC, PWM & real POKEY 1787036068_FivetoFive(mono)DAC.mkv 675098133_FivetoFive(mono)PWM.mkv 1813749285_FivetoFive(mono)realPOKEY.mkv

Found music in which there is a noticeable difference in the mixing of audio channels. Recorded on PWM version & real POKEY 1606962288_FivetoFive(mono)realPOKEY.mkv 1198921907_FivetoFive(mono).mkv

TMC 2.00/2.0H player does not work with Quadro. When I select Quadro, TMC slows down music playback and data is entered only for 8 voices, not 16. TMC20H.zip

The sound is better and cleaner, because I did the mixing differently than it is implemented in the original POKEY chip. In the original POKEY chip, voices 3 and 4 are inverted at the output. Because of this, there is a moment when the amplitude and impulses in channels 1 - 3 and 2 - 4 clearly coincide, due to the inversion, when the voices are summed, silence is obtained. The voices are subtracted. In voices 1-2 and 3-4, the same moment can also occur. I made it so that the voices only summed up. Therefore, the sound is more pleasant. I made a quad POKEY chip. Where can I download music in TM2 format for 16 voices?

I solved this problem. I bought an NTSC 600XL computer with a GTIA SECAM chip. Therefore, the image is black and white and only 8 shades are visible.

My NTSC machine only shows 8 shades. Most likely, the GTIA chip is faulty.

The latest status of your package - Handed over to the courier, May 08, 2023, 07:20, USA. USA does not block incoming parcels

Are GTIA chips of PAL and NTSC versions compatible with each other? My NTSC machine has a completely different color palette. The NTSC GTIA test shows only 8 color gradations, while the PAL GTIA shows 16 gradations. Is that how it should be?

this is the address of the virtual warehouse I live in Moscow. I visited 61 cities in Europe. Traveled a lot. Everything is fine, except for the 50 km/h car speed limit for the city. In Moscow, inside the city is from 80 to 120 km/h car speed limit. In a big city, this is very convenient. Now I observe that all the parcels sent by me to Europe are at customs for more than 1 month. Quickly delivered only to Budapest in 12 days from Moscow. Previously, only Germany and the Czech Republic detained. One parcel was at the customs of the Czech Republic for exactly 4 months. In fact, the export of electronics manufactured in Russia, microcircuits, resistors and capacitors is prohibited from Russia. At the same time, electronics from Russia pass customs without any problems.

In fact, everything is completely different. I can't talk about it in this forum.

It looks like the parcel will be in customs for a long time.

yes, 01 may 2023 I made a mistake

yes, with this speaker no problem. Your device has been in the USA since 01 may 2023.

You can connect speakers to both versions. Headphones are low-impedance loads. The output current of the DAC version is low and there will be a quiet sound.

Work for PAL/SECAM/NTSC 600XL/800XL machines. I did debugging on NTSC 600XL machine. The CPLD chip does not want to work normally at frequencies below 8 MHz. Clock Frequency on the PBI bus - 1.7734375 MHz PAL and 1.79 MHz NTSC. When using the clock frequency from the PBI bus, extraneous harmonics appear. For example, in the demo Perestroyka. I had to add a 28.375 MHz generator. 28.375 / 16 = 1.7734375 = PAL 28.636 / 16 = 1.78975 = NTSC Almost all software is written for PAL machine. On NTSC machine music for PAL machine will play correctly, but with an acceleration of 20%. There is a player that slows down by 20% when playing SAP files on NTSC machine. But, if the music is written purely for the NTSC machine, then it will be played with an error in frequencies, as in PAL machine. The vast majority of people won't notice it. Only professional musicians. The console sound was not specifically brought out. I disabled the sound output on the internal POKEY chip and left the console sound. I noticed in the photo that the manual stereo mode is on. It is better to enable automatic detection. When the stream is mono, audio is played on the left and right channels. If there is a data flow to the second chip, which is determined by writing to its registers during 65536 processor cycles, or the volume of any channel is greater than 0, then the first chip will be for the left channel, and the second for the right. When auto stereo playback, the green LED will light up. The difference between the DAC and PWM versions will not be heard even by a professional musician. Only the oscilloscope will show it. The output volume of both versions is the same. But, the PWM version has more current and you can directly connect headphones. Recorded music from both versions: https://drive.google.com/drive/folders/15ughVu-Ay1X7gZcosUdb_GTBbKz411Ff?usp=share_link С уважением, Алексей

В вашем эмуляторе совершенно неверно работает счётчик 5 bit poly. Если Вам интересно, могу написать, что необходимо сделать для получения правильной последовательности счётчика, которая на выходе получается не 31, а 62 бит.