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Messages - Zozosoft

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1
Hardver / Re: Az a fránya L2 tekercs...
« on: Today at 11:11 »
Kvaczko fotója: feleslegessé vált alkatrészek eltávolítva:
29680-0

2
Hardware / Re: SymbiFace3 is near your Enterprise...
« on: Yesterday at 12:50 »
What are the RSF3 extras? What the big screen do?

3
Hardware / Re: Enterprise Deployment Attempt Over FPGA.
« on: 2022.November.25. 15:31:34 »
(Sorry, I have explained Ron that Zozo is working on the SF3 driver and Bruce Tanner on EXDOS3.0)
Yes, most of work on EXDOS 3 done by Bruce. But now my previous EXDOS fixes and enhancements are officially included in the code.

4
Programming / Re: EXDOS 3.0
« on: 2022.November.19. 13:06:42 »
Ez már működik stabilan?
Ráérsz majd béta tesztelni?

Do you have time for beta testing?

5
Programming / Re: EXDOS 3.0
« on: 2022.November.18. 10:17:16 »
:ds_icon_cheesygrin:
29579-029581-129583-2

6
Hardware / Re: SymbiFace3 is near your Enterprise...
« on: 2022.November.17. 16:54:42 »
:ds_icon_cheesygrin:
29574-0

7
SOUND: / Re: MIDI
« on: 2022.November.14. 19:42:27 »
Csinálsz egy frissített Midi csomagot? Föltenném a klubos gépre.

8
Hardware / Re: 6Mhz and more...
« on: 2022.November.09. 14:26:10 »
Turbo EXDOS option also tested:
29550-029552-129554-2

9
Hardware / Re: 6Mhz and more...
« on: 2022.November.08. 15:57:07 »
and optionally the third to replace Nick complicated clock generator (broken L2 and can't get replacement problem).
Successfully tested: Nick can run from external clock source!
29538-029540-1

Just one cut needed for separate the original 14M clock circuit.
29542-229544-3

Kvaczko planning standalone small dauhterboard as Nick clock circuit replacement. Then will be possible repair machines with broken L2.
29546-429548-5

The planned turbo card also will have a Nick clock option.

10
Hardware / Re: 6Mhz and more...
« on: 2022.November.07. 18:54:38 »
6MHz and less... :lol: anti-turbo testing :ds_icon_cheesygrin:
29536-0
 

11
Hardware / Re: 6Mhz and more...
« on: 2022.November.07. 14:26:28 »
Does it smoothly change the clock step by step?
Yes. Then there is no need to discover the secret of the SMD Turbo erased chip labels :-D

12
Hardware / Re: 6Mhz and more...
« on: 2022.November.07. 10:49:55 »
This is just a first test of the Si5351A programable Clock generator module. It can be programmed via I2C bus, so a microcontroller is needed, which executes the task.
ESP8266 hacked to work as Arduino, then it just works as a simple microcontroller not as wifi.

The Si5351 has 3 independent clock outputs. The plan: one for the internal System bus (CPU), one for external System bus (Turbo EXDOS), and optionally the third to replace Nick complicated clock generator (broken L2 and can't get replacement problem).

13
Hardware / Re: 6Mhz and more...
« on: 2022.November.06. 13:00:38 »
29513-029515-129517-2

14
Welcome here!

This is screen: uninitialised Nick chip display power on garbage of video RAM.
It is means the system freeze before the ROM enter to the display initialisation phase.

Most possible problems:
-dead RAM chip. The original EXOS ROM have a bug: put the stack pointer to untested RAM, and if onboard memory faulty can't report the fault because using CALLs, which are never return.
For this situation I wrote small test, what I also recommended to others.
-faulty Z80. Already found some, all are Zilog type, made in Phillipines serie. Some are really crazy: can execute program, but when write to RAM one or more bits are faulty.
-defective Dave chip. One or more outputs are dead. If the /ROM signal dead can be replaced with few 74 series chip.

15
Hardware / Re: SymbiFace3 is near your Enterprise...
« on: 2022.October.19. 13:35:03 »
You can find the DFU file on the usual place on the Drive.
I found two DFUs here.
20210226 working.
20220328 not working (ERR).

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