Thanks for your subs :) There is nothing very difficult in this, it only take times to check and understand everything. You need to be very patient, study functionnality step by step and of course never give up!

@@Z80System At 41 my wife is attempting to get my ADHD amongst other *isms under control. Actually need to get checked for Autism. but as a kiddo, you had the Aderall Parents or the Raised by the Belt Parents... I was the belt. So Learning and teaching myself pcs with Trash picked & flea market finds, was a challenge in itself. One Day, until then, I will Gawk & Complement Your Accomplishments LOL

yes it is in French :)

Thanks, yes I use a lookup table for sin/cos values to make 3D going faster.

Thank you very much!

Hello, It is a song made by Fynns Arcade, here is his KZfaq Channel : www.youtube.com/@FynnsArcade

Hello, Yes, all the program I've made are available for anyone who want it. You can download it from the Dropbox web site (the link is on the video description).

Thanks for your message ! Yes, I have lot of idea for upgrading the Z80 computer. Wait and see ;)

Hello; yes I can put the gerber files on Dropbox if you want. But this keyboard will be upgraded some day : I want to use real keys (cherry MX switch) and a bigger space bar.

Hello, Thanks for support. It is not yet finish and still far from my dream Z80 computer, it is more a "in progress" works. For example, the 8 I/O port are too close to each other, and the reset LED is unfortunatly reversed (going off when Reset is activate). I have port 5 and 6 not working in Read mode (I have to check why) : It was a first PCB try, but I learn a lot then from my mistake. So please be patient to give me time to accomplish the final Z80 complet machine :)

Many thanks :) Yes I try to use all possibility of the computer each time. I bought the PCB on jlcpcb website. it is not expensive, but I have to wait 2-3 weeks to received it.

Thanks for your support !

Thank you!

Hello, you are right, I will think of a more standardized key value for next time.

Thank you very much

Thank you :)

Thank you, Yes creativity is open to all with 8bit computer !

Thanks!

Thanks very much :)

Thanks very much

Hi Alex, the paper mask ink is transfert into the copper plate by using hot Iron. it take about 5-10 minutes to be done, by pressing very strong on the iron (with all your strenght).

Hello, Yes I used Bresenham Algo for drawing lines. Check my Z80 video Part 3, it is explained (algo @1"12).

@@Z80System i have found the processing a bit slow even for a 2mhz z80. Did you used pure asm or there is also 'C' code?

@@Z80System Ah, OK. now i see. It's C code so slower than could be

Hello, Thank you very much. I'm a bit busy this days, but I'm working on a homemade keyboard. It may be ready (PCB/soldering/test/program) in september, I hope so :)

@@Z80System Thank you for your attention responding to the post. I'll be waiting for news from your channel. Sorry, I'm using google translator.

Hello, Nothing very special, just connect the EEPROM address & data lines to the corresponding Z80 pin. Then, when starting, the Z80 will request info on the $0000 address and the EEPROM will reply (corresponding code) on the data line. After each instruction the Z80 increment the address line requested by 1 (except if you write a jump address). To program the Z80 (meaning to add some code into the EEPROM so that the Z80 will understand it when reading), use a Z80 compiler and copy the binary code result into the ROM using a EEPROM programer tool.

Thank you very much

Bonjour, Merci beaucoup pour ton message! Je suis heureux que cela intéresse d'autres personnes :)

Thanks :)

Thanks!

Hello, It is just that I initially used a 555 timer and so I didn't have high speed Clock at that time. But in the following video, I changed the 555 chip by a 4 pin Quartz Crystal that finally run the CPU at 8 Mhz.

Thank you very much :)

Thanks for the sub!

Dito 👍

Yes, Z80 is still amazing :)

Thanks very much