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by agranlund
Wed Oct 28, 2020 10:19 pm
Forum: MEMBER BLOGS
Topic: Granlunds FrankenSTein
Replies: 91
Views: 5248

Re: Granlunds FrankenSTein

Well that was "fun".. maybe that'll teach me to tripple check before starting to put down traces :lol:
Screenshot 2020-10-28 at 18.29.59.png
Screenshot 2020-10-28 at 18.29.59.png (164.11 KiB) Viewed 117 times
Blitter socket now on the top layer where it belongs, and the Phoenix blitter should fit.
Screenshot 2020-10-28 at 18.29.12.png
Screenshot 2020-10-28 at 18.29.12.png (302.72 KiB) Viewed 117 times
by agranlund
Wed Oct 28, 2020 10:08 pm
Forum: HARDWARE DISCUSSIONS
Topic: STM1 Laser upgrade
Replies: 7
Views: 155

STM1 Laser upgrade

Has anyone had any success with the STM1 optical mouse upgrade from amigastore.eu? I received mine today (version v2r0) and it's a bit pants really :/ Horizontal movement is super nice and the vertical one is too but only when it works as it should. If I move the mouse in one direction, stop for a b...
by agranlund
Wed Oct 28, 2020 9:56 pm
Forum: TF536 ST EDITION
Topic: It lives!
Replies: 19
Views: 235

Re: It lives!

Nice!

:dualthumbup:
by agranlund
Tue Oct 27, 2020 1:14 pm
Forum: MEMBER BLOGS
Topic: Granlunds FrankenSTein
Replies: 91
Views: 5248

Re: Granlunds FrankenSTein

Hahaha! My god... apparently I had the blitter socket facing down :dizzy:
Guess I have to rip up and redo the traces but I'm happy I spotted it.
Screenshot 2020-10-27 at 13.50.37.png
Screenshot 2020-10-27 at 13.50.37.png (344.78 KiB) Viewed 154 times
by agranlund
Tue Oct 27, 2020 10:10 am
Forum: MEMBER BLOGS
Topic: Granlunds FrankenSTein
Replies: 91
Views: 5248

Re: Granlunds FrankenSTein

Oh cool. Would assume ST RAM wouikdnt be fast enough for it, or have enough RAM for it ? But paired with a 030 with 64MB RAM.. That would be pretty interesting ;) I don't think memory bandwidth is an issue but the size certainly would be. An 128kbit/s MP3 is just 16KB/s (or roughly 328 bytes per fr...
by agranlund
Tue Oct 27, 2020 9:38 am
Forum: MEMBER BLOGS
Topic: Granlunds FrankenSTein
Replies: 91
Views: 5248

Re: Granlunds FrankenSTein

I did look into mp3 decoder chips a while ago. But couldn't find anything which would use external ram, they were all from SD card :( VLSI has a range of chips that can be feed with a bitstream from anything :) And they have a data-request pin that signals when the internal FIFO has at least 32byte...
by agranlund
Tue Oct 27, 2020 9:33 am
Forum: FPGA DEVELOPMENT
Topic: BLITTER RE-CREATION THOUGHTS
Replies: 318
Views: 60716

Re: BLITTER RE-CREATION THOUGHTS

Is it me being a noob, or the smd fpga has been replaced by a ball grid array ? That is correct the FPGA is now BGA based (UBGA to be precise) so it can fit within the Blitter socket space. One the chips are cheaper and two it enables us to get the board down to a reasonable size. As someone who kn...
by agranlund
Tue Oct 27, 2020 9:18 am
Forum: MEMBER BLOGS
Topic: Granlunds FrankenSTein
Replies: 91
Views: 5248

Re: Granlunds FrankenSTein

So much free space, the possibilities are endless! :lol: Screenshot 2020-10-26 at 22.36.32.png Was originally planning on having an ethernet controller there, and the circuitry does fit in the space, but I'm more and more leaning toward having that completely separate and connected to the ACSI bus i...
by agranlund
Sun Oct 25, 2020 10:11 pm
Forum: MEMBER BLOGS
Topic: Granlunds FrankenSTein
Replies: 91
Views: 5248

Re: Granlunds FrankenSTein

exxos wrote:
Sun Oct 25, 2020 10:05 pm
Looking good :) Traces, trying routing a motherboard or 3 :lol: :stars: :stars:
Haha I rather not, I have enough hatred for Eagle as it is :lol:
by agranlund
Sun Oct 25, 2020 9:55 pm
Forum: MEMBER BLOGS
Topic: Granlunds FrankenSTein
Replies: 91
Views: 5248

Re: Granlunds FrankenSTein

A couple of more evenings with Eagle left but it's getting there.
stblitter.png
stblitter.png (615.12 KiB) Viewed 100 times
So.. many.. traces.. :stars:

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