Ordering the Alpha board

Post by **Icky** » 28 Aug 2018 20:54

Wow Exxos that is quite a feat of engineering. I just compared your new board to my 520 STM board.

IMG_2992.png

Post by **exxos** » 28 Aug 2018 20:57

Icky wrote: 28 Aug 2018 20:54 Wow Exxos that is quite a feat of engineering. I just compared your new board to my 520 STM board.

Cool! well actually base form as STF of course :) but all that now "blank space" will be where all the expansion ports will go :)

Post by **rubber_jonnie** » 28 Aug 2018 22:26

exxos wrote: 28 Aug 2018 16:17 Well I am shipping sockets for them all anyway. Problem is, if a chip gets red hot , then unsoldering it will be a pain.. also if something is wrong somewhere, might need leg bending, track cutting etc...

Soldering direct is best for sure, but not a good idea on a test board..

Cool, sockets it is then :)

alienkidmj12 · Post by **alienkidmj12** » 29 Aug 2018 19:49

Picked mine up this morning ;)

Superb.

poobah · Post by **poobah** » 31 Aug 2018 21:18

"Probably won't work edition" has landed in Ohio. =D

Cyprian · Post by **Cyprian** » 01 Sep 2018 12:42

Icky wrote: 28 Aug 2018 20:54 Wow Exxos that is quite a feat of engineering. I just compared your new board to my 520 STM board.

IMG_2992.png

congrats Exxos, a new motherboard looks so cool

Post by **exxos** » 01 Sep 2018 14:01

Glad you are all getting them pretty quick! Thanks for everyone's support! :cheers:

I will be listing 4 more boards in my store shortly... those are the last ones... I'm not producing anymore of these boards as of course it is un-tested.

See the roadmap for clues on whats to happen over the next year... https://www.exxosforum.co.uk/forum/viewt ... =19&t=1028

Post by **exxos** » 02 Sep 2018 18:13

I will list the last 3 boards in my store later today.. but please don't order any other parts as I can only send the board in a jiffy bag and can't pack other items in there as well (not without being crushed)..

PaulJ · Post by **PaulJ** » 23 Sep 2018 15:36

Chris I've been looking for the schematics for the board, I have enough parts to start building. I want to check the resistance on the pullups prior to starting full build up. Also is the DiagROM image up some where? Maybe we could have a thread for debug tools. Hope to have power on by next week end. The memory board and processor I just ordered from your store is going to be my long pole.

Thx

Post by **Icky** » 23 Sep 2018 19:35

PaulJ wrote: 23 Sep 2018 15:36 Chris I've been looking for the schematics for the board, I have enough parts to start building. I want to check the resistance on the pullups prior to starting full build up. Also is the DiagROM image up some where? Maybe we could have a thread for debug tools. Hope to have power on by next week end. The memory board and processor I just ordered from your store is going to be my long pole.

Thx

Hi PaulJ

When building the board I used a combination of the following to help:

Schematics diagram is here - https://www.exxosforum.co.uk/forum/viewt ... f=19&t=199
Parts List is here - https://www.exxosforum.co.uk/forum/viewt ... 1040#p7982
Silk screen layer image to help with placement (in parts list area) - https://www.exxosforum.co.uk/forum/viewt ... 1040#p7984

I found that printing the schematic out and the silk screen layer (inverting so black background is white) helped when working on the board

Icky

exxos's Atari, Amiga & retro forum

Ordering the Alpha board

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