Project of Megachip for Amiga

[Tuxbar81]

Payment received from mattsoft. Package sent yesterday morning. I'll send the tracking information when I'll back home.
Payment received from keith1 today.

 

[Tuxbar81]

Package sent to Keith on 27th July. (Arrived in UK on 28th)

PM to Pgovotsos. Megachip assembled. Will go to ultrasonic cleaner tomorrow & tested when I'll back home.

 

[Pgovotsos]

Tuxbar81 I tried to send you a PM but your mailbox is full.

 

[Tuxbar81]

Tuxbar81 I tried to send you a PM but your mailbox is full.

Hello Pgovostos! Sorry... I've just removed some PMs.

 

[Tectron]

I'm putting my hand up first in line for the next project..... Megachip for A1000 ;-)

Same here. Hint Hint.

 

[cpiace64]

payment sent

 

[km-l]

Interested 1 Kit for CDTV with a PGA84 socket.

 

[BLTCON0]

Which AGNUS do you need?

The board is designed for the AGNUS 8375. It has been tested with the revision 390544-01 (PAL). As the pinout of all 8375 revisions are the same, the Megachip should run with all of them. List below from a post of fordav1:

Agnus (2MB) 8375 R0 318069-18 A500+ (PAL), A600 (PAL)
Agnus (2MB) 8375 R2 318069-10 A500+ (PAL), A600 (PAL)
Agnus (2MB) 8375 318069-11 A500+(NTSC) and A600(NTSC)
Agnus (2MB) 8375 318069-19 A3000 (NTSC), A3000T (NTSC)
Agnus (2MB) 8375 390544-01 A500+ (PAL), A600 (PAL)
Agnus (2MB) 8375 390544-02 A500+ (NTSC), A600 (NTSC)

318069-18/-19 are PAL/NTSC specific replacements for the 8372(A)B in the A3000 and are not pin compatible to the 390544-01 / 390544-02, they should be taken off the compatibility list.

318069-10/11 models (8375 R2) are pin compatible to the 390544-01/02 (8375 R0) with the exception of pin40, which instead of 14M (R0) is Vbb (R2) and ideally a 0.1 - 0.33 uF capacitor should be placed between it and ground (i.e. pin41). It may work stable enough without it (I assume in the current megachip design pin41 connects to nothing, just like on the A500+), but on A500+ models using the 318069-10/11 variants they factory-installed the cap (on the underside of the board) so there must be some merit to it

 

[At800]

Any update on the progress?

 

[Tuxbar81]

The PCB needed to be modified. The footprint of the Ram chips were a little to large.
It works fine, but now it's much better for the assembling.

Production will be launch before the end of the month with also the A2000 version of the Megachip and the new design of my switcher which supports now the KS3.9.

 

[cpiace64]

arrived today, feedback soon

 

[Tuxbar81]

Glad to hear!

 

[smokwawelski]

I know you said do not put interest in A2000 version here. But I am verry interested and just wondering when would it be available and another question... is it possible to buy it fully assembled including agnus? Dont have one thats why Im asking. Thanks

 

[likanen]

I'm interested, however I don't have an Agnus chip. This is for CDTV.

 

[Schuimpy]

Payment sent for my assembled Megachip

 

[cpiace64]

positive feedback sent

 

[Tuxbar81]

positive feedback sent

Thanks a lot my friend! Nice transaction as usually. Positive feedback sent.

 

[kirk_m]

Payment sent.

 

[Surfer]

Hello, any news on second batch? Thanks for update

 

[optiguy]

Any news on an A 2000 version?

Sent from my SM-G930P using Tapatalk