Search found 4110 matches

by exxos
Mon Nov 19, 2018 10:13 pm
Forum: STF REMAKE PROJECT
Topic: Video driver thoughts
Replies: 64
Views: 974

Re: Video driver thoughts

The 3 caps in the white strip are the 3 which go around the IC as close to possible. The 4 caps on the clear strip, go on the outside pads of the IC, and the 4th is next to the shifter.
by exxos
Mon Nov 19, 2018 8:34 pm
Forum: ST 16MHz V2.X SERIES BOOSTERS
Topic: V2.5 BOOSTER CURRENT PROTOTYPE STATUS (SEC BOOSTER)
Replies: 209
Views: 16812

Re: V2.5 BOOSTER CURRENT PROTOTYPE STATUS (SEC BOOSTER)

I can see there is an oscillator on the board but wouldn't be surprised if we would still need the buffer board so it plays nicely. The SEC booster wouldn't need the MEGA ST buffer board. Is all the Ram, Rom and Flash run at the same speed as the CPU Exxos? Yes, for arguments sake, all at 50MHz.
by exxos
Mon Nov 19, 2018 8:29 pm
Forum: ST 16MHz V2.X SERIES BOOSTERS
Topic: BOOSTER 2.2 REVISITED
Replies: 16
Views: 380

Re: BOOSTER 2.2 REVISITED

This booster now the V2.3 booster which need external ROM board.. To re-cap... The ROM board was done in order to reduce costs for the booster board itself.. Basically the original V2.2 booster had the on-board ROM, was also a 6 layer PCB, which was very expensive.. So in order to reduce costs, the ...
by exxos
Mon Nov 19, 2018 8:24 pm
Forum: ST 16MHz V2.X SERIES BOOSTERS
Topic: V2.5 BOOSTER CURRENT PROTOTYPE STATUS (SEC BOOSTER)
Replies: 209
Views: 16812

Re: V2.5 BOOSTER CURRENT PROTOTYPE STATUS (SEC BOOSTER)

Initially exxos wan't going to put the rom on but just a decode line out to the fast rom board. I haven't been watching that close so its nice he added the rom on. :excited: :excited: :excited: I think you are confusing this SEC booster with the V2.2. booster... The V2.2 booster needs a external RO...
by exxos
Mon Nov 19, 2018 7:16 pm
Forum: ST 16MHz V2.X SERIES BOOSTERS
Topic: BOOSTER 2.2 REVISITED
Replies: 16
Views: 380

Re: BOOSTER 2.2 REVISITED

PCB's arrived... need to find some time to start building one up for testing.. but need to get more STE boosters built up before I start on this one...

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by exxos
Mon Nov 19, 2018 7:07 pm
Forum: TF330
Topic: The TF330 is here
Replies: 17
Views: 156

Re: The TF330 is here

Judging by this.. Its the drill holes that are the problem. SMD pads are fine. in the next revision i'll tighten the trace to trace and give more clearance to the drill point. Probably trace to trace 6.5mil and Trace to pad 8mil. The 0.8mm holes look ok on my board, looks like the smaller drill hol...
by exxos
Mon Nov 19, 2018 7:04 pm
Forum: TF330
Topic: The TF330 is here
Replies: 17
Views: 156

Re: The TF330 is here

Mine isn't perfect, but not as bad as yours I think..

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by exxos
Mon Nov 19, 2018 6:51 pm
Forum: STF REMAKE PROJECT
Topic: Video driver thoughts
Replies: 64
Views: 974

Re: Video driver thoughts

Icky wrote:
Mon Nov 19, 2018 6:40 pm
Has anyone looked at the parts list especially the caps? Don't want to order the wrong size (footprint) as there are a few large ones in this design.
I'm going to send you guys the full kit....
by exxos
Mon Nov 19, 2018 6:50 pm
Forum: TF330
Topic: The TF330 is here
Replies: 17
Views: 156

Re: The TF330 is here

terriblefire wrote:
Mon Nov 19, 2018 6:41 pm
A little bit concerned about the process here. I think my choice to use a 7 mi clearance was wise... they only just managed it
wow! The last boards I got were from JLC.. will see if I can check quality on one later..
by exxos
Mon Nov 19, 2018 4:36 pm
Forum: STF REMAKE PROJECT
Topic: Video driver thoughts
Replies: 64
Views: 974

Re: Video driver thoughts

Icky wrote:
Mon Nov 19, 2018 4:23 pm
You do like to keep us (Remake guys as you called us or remakers) busy Exxos.
Indeed! Piles of projects and tests to be done with multiple things!