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Author Topic: 6Mhz and more... (Read 22367 times)

Offline pear

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Re: 6Mhz and more...
« Reply #180 on: 2018.January.17. 12:06:53 »
On the Wiki will be a detailed description of the installation (under construction ;) ).
Firstly the card must work :)
« Last Edit: 2018.January.17. 12:12:12 by pear »

Offline pear

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Re: 6Mhz and more...
« Reply #181 on: 2018.January.17. 20:07:30 »
PCB project sent for production.

Initially I described the addressing and control of the card's status.

Offline Zozosoft

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Re: 6Mhz and more...
« Reply #182 on: 2018.January.17. 20:28:15 »
Initially I described the addressing and control of the card's status.
The System/EXDOS clocks are linked? Are just putted to same table?

Offline pear

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Re: 6Mhz and more...
« Reply #183 on: 2018.January.17. 20:40:27 »
There is a separate setting for each clock (look at CPLD config register no 3).
They are not rigidly linked (in CPLD logic).
The table shows the values of the clock for individual values of the selection register.
You will be able to force the settings of the clock pairs programmatically.

Offline pear

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Re: 6Mhz and more...
« Reply #184 on: 2018.January.18. 06:21:25 »
We can use the 7th bit of register no 2 in the CPLD (it is not utilized in the CPLD, but it can be used by the microcontroller) to set whether the clocks should be linked or not.
In the "linked mode", we can stored in the firmware which minimum value of the CLK SYS should be selected for current CLK EXDOS value.
Zozo, can you make for me such a table - value of CLK EXDOS and the corresponding minimum value of CLK SYS ? Please :)
« Last Edit: 2018.January.18. 07:11:08 by pear »

Offline Zozosoft

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Re: 6Mhz and more...
« Reply #185 on: 2018.January.19. 22:12:26 »
Zozo, can you make for me such a table - value of CLK EXDOS and the corresponding minimum value of CLK SYS ? Please :)
8/8
9.6/8
10/8
12/12
13.33/12
16/16

Offline pear

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Re: 6Mhz and more...
« Reply #186 on: 2018.January.20. 18:52:32 »
Thank you very much.
I have completed the information on the Wiki.

Offline pear

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Re: 6Mhz and more...
« Reply #187 on: 2018.January.25. 07:27:02 »
The project is slowly materializing.
A square hole in the middle of the board proved to be a challenge for manufacturer.
But finally PCBs are ready.
I'm waiting for the shipment

Offline Zozosoft

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Re: 6Mhz and more...
« Reply #188 on: 2018.January.25. 08:12:12 »
Wow!

Online gflorez

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Re: 6Mhz and more...
« Reply #189 on: 2018.January.25. 09:18:21 »
You have said it, it is amazing how you materialize your ideas....

Offline pear

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Re: 6Mhz and more...
« Reply #190 on: 2018.January.25. 13:18:10 »
The magic of creation :smt031
Maybe I'm making some bosons that give mass to projects :smt077

Offline pear

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Re: 6Mhz and more...
« Reply #191 on: 2018.February.09. 16:40:04 »
I have provided myself with another tool - the PQFP100 socket.
I bought three times cheaper CPLDs from China, but there is always a risk that the chips will be damaged or "repainted".
It would be a pity to mount such a chip on the PCB.
This time lucky - 5/5 chips work.

I'm still waiting for PCBs.

Online gflorez

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Re: 6Mhz and more...
« Reply #192 on: 2018.February.09. 18:03:47 »
You have redesigned the Lcon boards, but the old ones can still serve for classic memory expansions, to make easier its installation or removing.

Offline pear

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Re: 6Mhz and more...
« Reply #193 on: 2018.February.09. 18:09:35 »
If exists applicable to them, the old version are for taking (free).
For me they will not be useful.
Also for self-made (gerber files in attachment).

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Re: 6Mhz and more...
« Reply #194 on: 2018.February.09. 18:53:07 »
When you send me your next creation, I will ask you again...