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ULAPLUS finally!

PostPosted: 29 Jul 2014, 20:07
by lvd
Recently I've changed my mind and we have decided to add this really simple yet funny thing.
Fresh bleeding firmware from SVN: http://pentevo.googlecode.com/svn/avr/c ... evo_fw.bin
How to flash: http://www.nedopc.com/zxevo/rom/zxevo_f ... te_eng.pdf
Any problems? Report here.
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Re: ULAPLUS finally!

PostPosted: 30 Jul 2014, 12:36
by baxter
У меня не работает(

Re: ULAPLUS finally!

PostPosted: 30 Jul 2014, 16:11
by lvd
а какую версию прошивки показывает ers?

Re: ULAPLUS finally!

PostPosted: 31 Jul 2014, 03:11
by baxter
Извиняюсь, тупанул. Не в том порядке ресеты нажимал. :bang:

Re: ULAPLUS finally!

PostPosted: 01 Aug 2014, 18:05
by lvd
Факты:

TS-Labs wrote:Сообщение TS-Labs » 31 июл 2014, 18:20
...
Кроме того, отсутствует ридбек регистра данных. Софты, которые детектят сабж по ридбеку, не смогут его найти.


Code: Select all
pentevo$ svn info
...
Revision: 669
...
pentevo$ svn diff -r668
...
+               ULAPLUS: begin
+                       dout = up_lastwritten;
+               end
...
        // ULAPLUS ports
+       reg [7:0] up_lastwritten;
...
+       always @(posedge fclk) if( up_wr && a[14] )
+               up_lastwritten <= din;


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По-моему, кто-то лжёт.

Re: ULAPLUS finally!

PostPosted: 04 Aug 2014, 12:59
by lvd
http://www.zxshed.co.uk/sinclairfaq/ind ... le=ULAplus
It is left to the individual implementations to determine if reading the port returns the previous write or the floating bus.

Re: ULAPLUS finally!

PostPosted: 04 Aug 2014, 14:56
by lvd
УЛА+ должна читать палитру,

Хорошая выдумка, да.