Welcome, Guest. Please login or register.


Author Topic: 6Mhz and more... (Read 19107 times)

Offline pear

  • EP lover
  • *
  • Posts: 627
  • Country: pl
  • Z80 only
  • OS:
  • Windows NT 6.3 Windows NT 6.3
  • Browser:
  • Firefox 58.0 Firefox 58.0
    • View Profile
Re: 6Mhz and more...
« Reply #210 on: 2018.March.07. 10:29:11 »
To tell you the truth, I hope that you and gflorez will want to test new equipment as before with EnterMice :ds_icon_cheesygrin:

Firmware for the MCU and configuration for the CPLD is possible reprogramm directly on the board.
In addition, the MCU can be removed from the socket (PLCC44) and programmed in an external programmer.
The PCB is adapted for MCU AT89S8253 or AT90S5315. The default chip is the first.
Both of them can be programmed in the system via the SPI interface.

For programming CPLD, you need a JTAG interface and Xillinx ISE software (exactly the same thing that I used for the EnterMice project).
« Last Edit: 2018.March.07. 12:04:54 by pear »

Online gflorez

  • EP addict
  • *
  • Posts: 2231
  • Country: es
  • OS:
  • Windows XP Windows XP
  • Browser:
  • Firefox 52.0 Firefox 52.0
    • View Profile
Re: 6Mhz and more...
« Reply #211 on: 2018.March.07. 12:39:08 »
I eagerly want....!

Offline Tutus

  • EP user
  • *
  • Posts: 344
  • Country: hu
  • OS:
  • Windows NT 10.0 Windows NT 10.0
  • Browser:
  • Firefox 58.0 Firefox 58.0
    • View Profile
    • Enterpress News
Re: 6Mhz and more...
« Reply #212 on: 2018.March.07. 13:43:20 »
I would also like to, but Zozo needs to be installed.
So Zozo will test it :D

Offline pear

  • EP lover
  • *
  • Posts: 627
  • Country: pl
  • Z80 only
  • OS:
  • Windows 7/Server 2008 R2 Windows 7/Server 2008 R2
  • Browser:
  • Firefox 59.0 Firefox 59.0
    • View Profile
Re: 6Mhz and more...
« Reply #213 on: 2018.March.18. 18:30:20 »
Far far away, behind the many errors, minor and major, behind the several corrections, there was the dream turbo card.
To the dream is still a lot missing, but finally something starts to work as planned :D
I tested about half of the CPLD function. In addition to the small details that I am regular correcting, everything works.
First hardware tests

Offline Tutus

  • EP user
  • *
  • Posts: 344
  • Country: hu
  • OS:
  • Mac OS X 10.13 Mac OS X 10.13
  • Browser:
  • Firefox 59.0 Firefox 59.0
    • View Profile
    • Enterpress News
Re: 6Mhz and more...
« Reply #214 on: 2018.March.18. 20:01:44 »
:smt038 :smt038 :smt038

Offline Zozosoft

  • EP addict
  • *
  • Posts: 12854
  • Country: hu
  • OS:
  • Windows 7/Server 2008 R2 Windows 7/Server 2008 R2
  • Browser:
  • Firefox 59.0 Firefox 59.0
    • View Profile
    • http://enterprise.iko.hu/
Re: 6Mhz and more...
« Reply #215 on: 2018.March.18. 20:39:07 »
Far far away, behind the many errors, minor and major, behind the several corrections,
This means new PCB version will coming for the final cards?
If yes, then the pull-up resistors for the data lines can be added?

Quote
First hardware tests
Nice! :smt038

Offline pear

  • EP lover
  • *
  • Posts: 627
  • Country: pl
  • Z80 only
  • OS:
  • Windows 7/Server 2008 R2 Windows 7/Server 2008 R2
  • Browser:
  • Firefox 59.0 Firefox 59.0
    • View Profile
Re: 6Mhz and more...
« Reply #216 on: 2018.March.18. 21:00:05 »
Isn't bad. There is one problem with the reset from the microcontroller to CPLD (active high).
I solved it using a free port in the microcontroller (after reset is always set as '1').

The second error is the lack of a resistor at the PWM output (in RC filter was only capacitor) for the LCD contrast voltage.
This could also be solved in a simple way (seen on the movie).
I do not know why, but I can not properly initialize the OLED display. For now, I do not care.
LCD displays work well (OLED theoretically should works the same).

The buses on the card works properly (despite the two-voltage power supply).

I immediately apply all the corrections to the new version of the board (ver 1.1), but for now I do not see the need to order a new version.

I should have new, corrected L-connectors this week (they are already after customs clearance).

A lot of work ahead of me.

Offline Tutus

  • EP user
  • *
  • Posts: 344
  • Country: hu
  • OS:
  • Windows NT 10.0 Windows NT 10.0
  • Browser:
  • Firefox 59.0 Firefox 59.0
    • View Profile
    • Enterpress News
Re: 6Mhz and more...
« Reply #217 on: 2018.March.26. 12:05:07 »
I'm ready to receive the Dream Turbo Card :)
10 Mhz Z80 :)


Offline Zozosoft

  • EP addict
  • *
  • Posts: 12854
  • Country: hu
  • OS:
  • Windows XP Windows XP
  • Browser:
  • Firefox 52.0 Firefox 52.0
    • View Profile
    • http://enterprise.iko.hu/
Re: 6Mhz and more...
« Reply #218 on: 2018.March.26. 13:10:36 »

Offline Tutus

  • EP user
  • *
  • Posts: 344
  • Country: hu
  • OS:
  • Windows NT 10.0 Windows NT 10.0
  • Browser:
  • Firefox 59.0 Firefox 59.0
    • View Profile
    • Enterpress News
Re: 6Mhz and more...
« Reply #219 on: 2018.March.26. 14:47:54 »

Offline Judge

  • EP fan
  • *
  • Posts: 106
  • OS:
  • Windows NT 10.0 Windows NT 10.0
  • Browser:
  • Chrome 65.0.3325.181 Chrome 65.0.3325.181
    • View Profile
Re: 6Mhz and more...
« Reply #220 on: 2018.March.26. 18:20:54 »
I have 10 pieces of this... :smt045

20592-0
√údv.Judge

Online gflorez

  • EP addict
  • *
  • Posts: 2231
  • Country: es
  • OS:
  • Windows XP Windows XP
  • Browser:
  • Firefox 52.0 Firefox 52.0
    • View Profile
Re: 6Mhz and more...
« Reply #221 on: 2018.April.12. 17:55:58 »
Hans Tillema [TMTLOGIC] has given me a tip for turbo charged Z80s.

20692-0

"The Z80 is not 100% accurate on its timings, sometimes the /IORQ is earlier than the /WR or /RD signals"

Online gflorez

  • EP addict
  • *
  • Posts: 2231
  • Country: es
  • OS:
  • Windows XP Windows XP
  • Browser:
  • Firefox 52.0 Firefox 52.0
    • View Profile
Re: 6Mhz and more...
« Reply #222 on: 2018.April.24. 10:39:41 »
A silly question: in case it uses any, what Z80 ports will use the Dream Turbo Card?

Offline pear

  • EP lover
  • *
  • Posts: 627
  • Country: pl
  • Z80 only
  • OS:
  • Windows NT 6.3 Windows NT 6.3
  • Browser:
  • Firefox 59.0 Firefox 59.0
    • View Profile
Re: 6Mhz and more...
« Reply #223 on: 2018.April.24. 11:05:48 »
Only RTC ports 0x7E and 0x7F.

Online gflorez

  • EP addict
  • *
  • Posts: 2231
  • Country: es
  • OS:
  • Windows XP Windows XP
  • Browser:
  • Firefox 52.0 Firefox 52.0
    • View Profile
Re: 6Mhz and more...
« Reply #224 on: 2018.April.24. 11:40:31 »
Thanks.

Of course the wiki..... I have to begin to translate it soon.