Search found 176 matches

by MCes
Wed Feb 21, 2018 12:40 am
Forum: Other Systems
Topic: New generation of PLA - PLAnkton
Replies: 92
Views: 5884

Re: New generation of PLA - PLAnkton

I think that it's clear that me and Eslapion, for different reasons, can't accept any analysis from each other. coming back to the topic: I think that the hardware bug of plankton is now sufficiently documented, with technical analysis and with measures in the real world. Now I wait technical opinio...
by MCes
Tue Feb 20, 2018 12:34 pm
Forum: Other Systems
Topic: New generation of PLA - PLAnkton
Replies: 92
Views: 5884

Re: New generation of PLA - PLAnkton

I think that the hardware bug of plankton is now sufficiently documented, with technical analysis and with measures in the real world.

Now I wait opinions and new elements of discussion by the others people of the forum, otherwise continuing this discussion is fruitless
by MCes
Tue Feb 20, 2018 9:15 am
Forum: Other Systems
Topic: New generation of PLA - PLAnkton
Replies: 92
Views: 5884

Re: New generation of PLA - PLAnkton

In the best of case you are an incompetent, in the other case you are a liar (or both). (if nature is not agree with Eslapion then Eslapion tell that nature is in error....) I think that it's clear that me and you, for different reasons, can't accept any analysis from each other. I think that the ha...
by MCes
Tue Feb 20, 2018 2:46 am
Forum: Other Systems
Topic: New generation of PLA - PLAnkton
Replies: 92
Views: 5884

Re: New generation of PLA - PLAnkton

Early versions of PLAnkton were equipped with a 20 Ohms resistor to drop the voltage. Current versions are (since jan. 2017) equipped with a 27 Ohms resistor. Why change something in a PERFECT project? Also note the voltage at the CPLD does not have a linear relation with the voltage at pin 28 -> 4...
by MCes
Mon Feb 19, 2018 7:43 am
Forum: Other Systems
Topic: New generation of PLA - PLAnkton
Replies: 92
Views: 5884

Re: New generation of PLA - PLAnkton

I swapped a PLA of mine for a planktn: now I can measure something... On my C64 motherboard I desoldered a side of L5 to feed the 5V line from another (variable) PSU, the results: (4.75-5.25 is the narrowest Recommended Operation Conditions (ROC) of C64 chips) V28-14 / Vcpld 4.75 / 3.52 4.85 / 3.595...
by MCes
Tue Feb 13, 2018 11:05 am
Forum: Programming
Topic: NTSC / PAL: sjload & easyload+
Replies: 0
Views: 88

NTSC / PAL: sjload & easyload+

I know that sjload work with jiffydos modified drive, so I suppose that with a real drive (as 1541) I need to find the sjload-NTSC version for NTSC systems and a sjload-PAL version for PAL system, is it right? and where can I find them? I know that easyload work with not-modified (real) drive, but d...
by MCes
Fri Feb 09, 2018 2:02 pm
Forum: Other Systems
Topic: New generation of PLA - PLAnkton
Replies: 92
Views: 5884

Re: New generation of PLA - PLAnkton

5.25V is the limit of the TTL chip, not of the board: feed the C64 Vcc line to read 5,25V on pin 14-28 of plankton an then read the Vcc on CPLD. Pics will be appreciated 2- I won't go to 7V as this would destroy the DRAM chips. All memory datasheets that I found declare a "Recommended Operating...
by MCes
Fri Feb 09, 2018 1:11 pm
Forum: Other Systems
Topic: New generation of PLA - PLAnkton
Replies: 92
Views: 5884

Re: New generation of PLA - PLAnkton

Funny! People that make everything but not simply to measure with a voltmeter the Vcc on the CPLD! If eslapion trust in it's opinion he can supply a C64 with 5,25V (or 7V) mesuring this voltage between pin 14 and 28 of the plankton and posting the pics of relative measuring of the Vcc onto CPLD insi...
by MCes
Fri Feb 09, 2018 1:02 pm
Forum: Other Systems
Topic: New generation of PLA - PLAnkton
Replies: 92
Views: 5884

Re: New generation of PLA - PLAnkton

reporting fact = troll strange equations.... Thanks for the crappy memory card that almost anyone could make on a breadboard in 5 minutes. I think PLAnkton is in another league and you just can't grasp it therefore you are a jealous jerk about it. what a clear technical analysis! On TV I watched To...
by MCes
Fri Feb 09, 2018 12:24 pm
Forum: Other Systems
Topic: New generation of PLA - PLAnkton
Replies: 92
Views: 5884

Re: New generation of PLA - PLAnkton

Look. It's not my fault if you're ignorant. not enough to trust in you I was sure: Eslapion escape from testing the own project.... I have problem with the English, you with people that you try to trick! P.S. in wich product of yours I can find my name and a honey words? RHddDH9.jpg pic from https:...
by MCes
Fri Feb 09, 2018 11:29 am
Forum: Other Systems
Topic: New generation of PLA - PLAnkton
Replies: 92
Views: 5884

Re: New generation of PLA - PLAnkton

Eslaption read of a datasheet only the single line that (apparently) is not in contrast with it's own project! very funny! Normally TTL chips and memory chips of C64 need a nominal voltage of supply of 5V, the most restrictive chip into C64 indicate that the performance are guarantee inside the &quo...
by MCes
Fri Feb 09, 2018 3:37 am
Forum: Other Systems
Topic: New generation of PLA - PLAnkton
Replies: 92
Views: 5884

Re: New generation of PLA - PLAnkton

Each eprom datasheet declare the output stable until the input vector is stable. If one input line change, then immediately all output have to be considered indeterminated and need wait the access time to guarantee the right outputs. During the cycle time of the C64 (when are needed stable PLA outpu...
by MCes
Fri Feb 09, 2018 2:44 am
Forum: Other Systems
Topic: New generation of PLA - PLAnkton
Replies: 92
Views: 5884

Re: New generation of PLA - PLAnkton

groepaz is your troll eslapion, best just to ignore him. He is just trying to get you riled up. We know PLAnkton is the best PLA substitute. No need to rehash the past. reporting fact = troll strange equations.... i know at least one guy who purchased them directly from you and well... they didnt. ...
by MCes
Wed Feb 07, 2018 1:42 pm
Forum: Hardware and Tech
Topic: 8K or 16K?
Replies: 2
Views: 96

Re: 8K or 16K?

the vic 20 recognize at startup 3 possibility: 1) default memory asset 2) +3k (low basic) ram expansion 3) contiguous ram expansion from first 8K expandable ram (8,16,24K) so if the game need a 8k expansion ram it can be loaded into a 8k or 16k or 24k expanded VIC20.... http://sleepingelephant.com/d...

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