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AuthorTopic: New Minimig cores available  (Read 13410 times)

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Offline boing4000

Re: New Minimig cores available
« Reply #135 on: October 01, 2008, 03:55:54 PM »
Contact your dealer for a replacement PIC with tinybootloader inside.
My first Minimig from Vesalia (build by ACube) also had no bootloader and I got the same update problem as found here.
Vesalia told ACube about this matter and both agreed to exchange the PIC against a new one for all customers.
In my understanding AmigaKit will do the same service!

Offline boing4000

Re: New Minimig cores available
« Reply #136 on: October 19, 2008, 07:49:58 PM »
To any core builders (especially Jakub ;-)): Please do not implement SuperHires denise (ID $FC) in minimig core. This will cause well known problems as in real ECS Amiga 500/600/2000 to some program.
I gave it a try by simply setting the denise id to ECS and found some strange results.
Im aware that real S-Hires mode is unable to work at this way, but due to the chip-id the registers of denise will be used by (some) kickstart/demo/intro/game copperlist. In many cases this will show a weird screen or altering colortable etc.

ECS agnus in minimig is absolute right working and in fact even more compatible then the real ECS chipset itself.

Offline boing4000

Re: New Minimig cores available
« Reply #137 on: October 20, 2008, 06:50:34 PM »
I did an adjustment in the FPGA core to shift the picture a bit to the right. I used a real A500, kickstart V1.3 and an initial cli screen with standard preferences (no devs:system-configuration file) to have native screen orientation on both system.

The new setting in Beamcounter.v at line #59 is:
Code: [Select]

parameter hsstrt = 25;  // front porch = (uncalculated)us (25)

Now the horizontal screen start is 100% accurate to an ocs/ecs Amiga.
Also the H-Sync signal now has 15.52KHz as on a real Amiga (before it was 15.62KHz).
Would be nice if you can implement this setting in your next core :)

Offline peyo64

Re: New Minimig cores available
« Reply #138 on: November 30, 2010, 02:31:36 PM »
Hello, I've a problem with my PIC Firmware
I've a pb during the booting of my miniming, I have made a picture as below. Do I forget something or do I need to update the PIC Firmware and how? :confused:

Pb solved, I used the bad version of "minimig1", I changed the old by the latest and now it's work.
« Last Edit: November 30, 2010, 09:22:44 PM by peyo64 »