Search found 2711 matches

by duikkie
Thu Dec 14, 2017 2:03 pm
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

i ordered a raspberry zero v1.3 hope this give more luck , must solder header on it 6 euro.

if that faulty as well , my beeb has to do without a second processor.
by duikkie
Thu Dec 14, 2017 1:05 pm
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

i will try to look at the level shifter , and maybe look fore bad thinks , but i checked it over and over. i don't think it is or was the level shifter. maybe the pi was faulty at the start, it was second hand and maybe someone blow up something at the connector side , but still i had picture on the...
by duikkie
Thu Dec 14, 2017 12:08 pm
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

bad news my pi is broken :cry: first time i did get picture on my tv screen with pi software noob after trying for second time on beeb still nothing second time pi with software on tv no picture anymore what did go wrong no idea maybe pi was somewhere broken at connector end ?? 5volt-0.65volt-0.65vo...
by duikkie
Thu Dec 14, 2017 9:33 am
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

oke more time today to test my level shifter in the night it came to me , the ghost of beeb tomorrow if you solder 3 diodes from the 5 volt to the 3.3 volt pin on pi side then the 74lvc245a will get there power ( no pi connected) 5volt-0.65volt-0.65volt-0.65volt=about 3 volt if 5 volt from beeb. ( g...
by duikkie
Wed Dec 13, 2017 2:50 pm
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

the beeb boot up so tomorrow if i have time will check all lines on pi side it starts to look like the pi is not working on the connector ? or hole pi but playtime is over for today :( i know where d0 is :) ( i have switchs td0..td7 around but allso at the pi side ) pin 11 is td0 and pin 9 is d0 ( b...
by duikkie
Wed Dec 13, 2017 2:29 pm
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

i know where d0 is :) ( i have switchs td0..td7 around but allso at the pi side ) pin 11 is td0 and pin 9 is d0 ( beter that way in lining up with connector bbc side) if i put two 74hc245n in the shiftconvertor my beebs hangs if i connect pin 2/4 to pin 1 pi connector ( 5 volt on chips) if i remove ...
by duikkie
Wed Dec 13, 2017 2:19 pm
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

what must be the level on ttube and trw at startup ?
by duikkie
Wed Dec 13, 2017 2:16 pm
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

oke very strange thinks the x files ?? scanner online no virus on pc ?? but that is not the problem here if i put two 74hc245n in the shiftconvertor my beebs hangs if i connect pin 2/4 to pin 1 pi connector ( 5 volt on chips) if i remove u1 the data chip d0..d7 it boots with 5volt on chip2 , scoop t...
by duikkie
Wed Dec 13, 2017 1:50 pm
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

Oke then it is not the software

hoglet wrote:
duikkie wrote:but if you use the files does it run ?

Yes, I've just tried the files from the zip on a Pi 2, and they work and the system boots.

Dave
by duikkie
Wed Dec 13, 2017 1:31 pm
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

removed ?
by duikkie
Wed Dec 13, 2017 1:16 pm
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

i think it is very old software :) the zip software but if you use the files does it run ? or must i remove recycler dir first ? or do we need that ? upload running thing for pi 2 ? edit on sd card no recycler dir so it comes by zipping the hole sd-card ? no problems with virus on this very old wind...
by duikkie
Wed Dec 13, 2017 12:37 pm
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

the hole sd card :)
by duikkie
Wed Dec 13, 2017 12:33 pm
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

maybe software problem ?
problem , hold on :)
by duikkie
Wed Dec 13, 2017 12:28 pm
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

i do not know anything about raspberry pi :( so debug kernel for pitubedirect , i don't know what that means allso serial cable for the pi ???????) i only know from a few days ago that i put a sd with NOOB on it , and the raspberry pi did give picture on tv , so it did work many the raspberry pi con...
by duikkie
Wed Dec 13, 2017 11:57 am
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

first food :)
by duikkie
Wed Dec 13, 2017 11:56 am
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

the raspberry is not connected . first i have to check the lines :) and buffers i will look for normal 74ls245 chips for 5 volt check if i only connect the level buffer to tube , i get a mode 7 with all N or n what is running, if i connect the pi allso (yesterday) i get only a flashing cursor in the...
by duikkie
Wed Dec 13, 2017 11:51 am
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

the beeb start up with only u2 fitted :)

can not check the tube line from the beeb because i have a big board with rom/ram over chip ic 24 :)

adress line checked with eprom socket (15) also the data line they are good
2mhz, rst and rw checked on ic 89

so every line is at the buffers
by duikkie
Wed Dec 13, 2017 11:40 am
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

V
CC
Supply
voltage
range
–0.5
6.5
V

Operating
1.65
3.6
1.65
3.6
1.65
3.6
by duikkie
Wed Dec 13, 2017 11:35 am
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

something like that only version v1.1 with ta3 to gnd. but i have looked at datasheet 74lvc245an and it writes abolute power supply 6.5 volt , but further in recommened it writes 3.6 volt max ? can i use 5 volt without blowing up the 74lvc245 or is 3.6 absolute max ? Is this the design you have buil...
by duikkie
Wed Dec 13, 2017 10:49 am
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

i want first to check the level shifter , with signals from tube, first without the two 74lvc245 chips then with and signals on the outside if that is working without raspberry pi 2 , then i have to look at the raspberry if my thinking is correct if buffers get power from 5 volt ( pin 3.3 and pin 5 ...
by duikkie
Wed Dec 13, 2017 9:23 am
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

more time today :) , if only level shifter hangs on the tube then beeb do not startup normal all N over the screen ? note the chips get no power because the 3.3 from pi is not there but how to test my level shifter when i remove the buffer chips beeb start up normal so first how to check the signals...
by duikkie
Tue Dec 12, 2017 9:00 am
Forum: software: other
Topic: Mini Office II disk protection (Split from: Legacy of the BBC Micro User magazine / Database Publications Ltd)
Replies: 23
Views: 567

Re: Mini Office II disk protection (Split from: Legacy of the BBC Micro User magazine / Database Publications Ltd)

not read the hole item , but you can do strange things with 8271 chip what is not possible with 1770 all mine protection methodes are based on that , it is allso possible to have more then 18 sectors per track ( but i will not tell that yet :) ) the mean thing about protection is that you don't tell...
by duikkie
Sun Dec 10, 2017 6:27 pm
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

:( something is wrong , do not know what it is to late to look , but without pi and shift level beeb starts up oke, with
beeb and pi only cursor :(
by duikkie
Sun Dec 10, 2017 6:04 pm
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

oke then :)

BigEd wrote:unzip gives you about 4MB, not 4GB!!
by duikkie
Sun Dec 10, 2017 4:48 pm
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

can not be ??

i have 2gb card and unzip likes 4 gb ?
but do i need debug directorie ?




dp11 wrote:Any SD card will be fine.

Just plug pi and level shifter together and into Beeb. Insert SDCARD and turn the beeb on.
by duikkie
Sun Dec 10, 2017 4:30 pm
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

Re: how to do ? raspberry pi 2 and beeb b lost it

how big must sd card be ? 2gb or more ? less ? commands to activate ? PiTubeDirect releases can be found here: https://github.com/hoglet67/PiTubeDirect/releases Download the latest (currently Diamondback-RC2): https://github.com/hoglet67/PiTubeDirect/releases/download/diamondback-rc2/PiTubeDirect_Di...
by duikkie
Sun Dec 10, 2017 3:24 pm
Forum: hardware
Topic: how to do ? raspberry pi 2 and beeb b lost it
Replies: 40
Views: 484

how to do ? raspberry pi 2 and beeb b lost it

oke topic for pi co-processor is very long : to make it not longer starter Qeustions i have maked the level shifter , now i need software and where to put it something about cobra ? oke a zip file ? where to put it ( how big must the sd card be ) for in the raspberry pi2 what i think it must be on ?...
by duikkie
Thu Dec 07, 2017 8:57 am
Forum: hardware
Topic: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)
Replies: 1003
Views: 75362

Re: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)

oke it is a test pcb board what i use first looking if pi2 is working on beeb b. so i soldered b7 to pin 10 and b7 to pin 19 (green wire) and so on so i can chance it in the future :) is ta3 used ? or can i leave it to gnd ? To allow for future developments, A3 should be connected as well. It is not...
by duikkie
Thu Dec 07, 2017 8:24 am
Forum: hardware
Topic: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)
Replies: 1003
Views: 75362

Re: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)

oke shoot me , but i have a question , and i am building a board signal converter with old pcb board i found a drawing of pitube direct signal converter v1.1 somewhere now i see signal converter v1.3 with b7 ta3 what in v1.1 b7 is to gnd ? is ta3 used ? or can i leave it to gnd ? https://easyeda.com...
by duikkie
Sun Nov 26, 2017 6:18 pm
Forum: hardware
Topic: Turbo MMC - MMC card setup
Replies: 9
Views: 265

Re: Turbo MMC - MMC card setup

why using old turbo mmc rom ? and very new cards ? the problem with turbo mmc rom , it only works with FAT , only the first 8 files for beeb.mmb are checked, only bytes are used for transfer commando. new cards have block (512 bytes) transfer. if you want turbo mmc rom , also use old cards :) else y...

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