Antix
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Posts posted by Antix
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Thanks Thorsten for your reply
as usual you are very kind
Often the more you break your head on the wall the more simple is the solution of the problem
After a lot of evening trying to make work my circuit I noticed that the problem is the programmer and the 16F series.
I made a lot of midiboxes with my programmer without any problem but 16F877 wants Vdd during programming
and as you can see in the schematic the "P" ( programming ) position cuts Vdd. ( the "E" position is for evaluation board function )
With Pic 18F452 or 4620 or 4685 I never had this problem an succesfully programmed in P position
Probably I am a stupid and forgive me if all of you already knows that 877 needs Vdd during the programming but may be useful share this information about older PIC.
I was deceived from the random operation , as you can see the picture the circuit worked occasionally.
Thanks again to TK
Best regards
Antonio
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hi,
Recently I bought a JX-8P and decided to program it with a nice looking MidiboxPlus ( no matter the age :))
I am using:
16F877-20/P
20 MHz xtal
mplus_pcb_v1.brd redesigned board which is consistent with the final schematic
succesfully burned and verified PIC with ME-Prog from Micro Engineering using Epic Programmer ( I made a lot of Midibox with this programmer )
midibox_plus_v1910.zip is the firmware with the 16 pot variant
now the pain
I powered up about 50 or 60 times and LCD visualized the right screen only 3 times. ( as you can see in the attached image )
the other times a line of blank character .
It seems to me something like a bad LCD initializing ( am going to buy another LCD in the case the one I have may be too slow)
Please does anyone reported strange behaviour like this on MidiboxPlus or other possible cause of malfunction? ( I am searching in the forum but have not a solution yet )
Thanks for any help or information
Best regards
Antonio
P.S.
I am going to buy new LCD from different manufacturers but if someone reported of slow LCD ( initializing ) please I will be glad for any help
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Hi Peter,
Nice track
( a little headache for the fast cam moving
)
I noticed of your ESI samplers , I bought a ESI2000 for 30 euro in a local flea market and I am very happy about it
greetings from Italy
Antonio
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On 13/9/2015 at 8:35 AM, latigid on said:
It's been a little while since the forum upgrade and there are still issues. Hopefully they can be collated here for fixing. We're appreciative of this great place but it can be made better!
- There's a problem with some gallery images displaying a black screen
At my side there is the same problem.
Sorry if I opened a tread about this issue after this one after LatigidOn
Best regards
Antix
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Hi,
Volume potentiometer of my beloved Blofeld and Virus are going "wobbly"...I dont like this
may anyone suggest to me the part number ( Mouser or RS or other supplier ) of the volume pots for Blofeld and Virus C ?
Thanks and regards
Antonio
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Hi guys,
I noticed a strange behaviour in the forum gallery.
If I click on a pic at the top of main page I am normally readdressed to the gallery but if I try to use the arrows tho change the pics I
obtain only blank. ( some pictures are displayed but some not )
It's only at my side ?
Thanks and regards
Antonio
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Hi Antonio,
you would have to add following snipped into the source code (src/main.inc) after the USER_SR_Service_Finish label:
USER_SR_Service_Finish clrf MIOS_PARAMETER1 movlw 0x00 ; first SR call MIOS_DOUT_SRSet movlw 0x01 ; second SR call MIOS_DOUT_SRSet movlw 0x02 ; third SR call MIOS_DOUT_SRSet ;; etc... add more MIOS32_DOUT_SRSet based on the same scheme if desiredBest Regards, Thorsten.
Hi Thorsten,
Finally I completed the boards for MIDIO128 and modified the code as you suggested me.
To achieve the 1ms pulse I added not this code after USER_SR_Service_Finish label but I have added after USER_SR_Service_Finish_End
It works but I have an analog scope so I cant measure the time of the pulse with high precision , anyway , comparing the pulse to the scale on the CRT of the scope it seems to me about 1ms .
Best regards
Antonio
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I have not experienced electrical or airflow noise whit a "silent fan" ( powered at 5v instead of 12v )
Anyway I have disconnected it
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I used heatsinks for DIP devices sticked with AKASA thermal biadesive tape and have disconnected the fan
and drilled some additional holes in the bottom of the case
P.S.
I am not advertising for the brand of the tape...it is only what I used for
feel free to use any other thermal tape you want :smile:
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I need it too please
It will be the same for me without sequencer ( a 3U rack only for pots and switches )
Illustrator or FPD or corel or DXF
Many thanks for any help
Antonio
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Sold
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sorry! we cant find the track :no:
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Hi Tim,
I PMed you about a shipping test to Italy
Please let me know
Best regards
Antonio
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the best build i eve seen for a mb6582 !!
very well done .
Thanks Reboot :smile:
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the aluminium panels are made in laser workshop
then a primer substrate and yellow acrylic painting made by me
silk screen for graphics in workshop
transparent acrylic painting made by me to protect all the graphics
that's all
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Hi ,
I am going to sell one of my MB6582
It is fully stuffed with 8 x 6581 some from Androsid and some bougth by me in el-parts shop and was never used ( NOS )
the chips are cooled with heatsinks sticked with Akasa Thermal Tape .
Here some pics of the interior and the panels.
The board are flux free and all the parts I used ( resistors , Caps etc. ) are high quality.
I am asking 650 euros plus shipping and I can ship the power supply too.
I think I spent the same euros to build it....
payment thru Paypal
P.S. I assumed that for this single selling I already have permission so , please , TK if it is not OK just let me know
Best regards
Antonio
P.P.S. The LCD has a Lexan window that i made with a CNC milling machine
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Hi Peter,
I noticed that your neighbor :cheer: who sang so well is still alive...
despite the alien :alien: had ate her
it seems to me to hear her voice again in this track
Tanti Saluti
Antonio
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Wow !!
The track is beautyful as usual but I am very impressed from the flyght sequence
do you made it with your drone?
fantastic
Antonio
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Patience....my second name
Thorsten are there some schematic to see how velocity will work .
DACs will drive VCAs ?
Best regards
Antonio
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Hi ,
Probably Thorsten can tell you what is the forum name of Al Spitzley .
Try to ask him.
Best regards
Antonio
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Nice Trance :happy:
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Nice... a frontpanel too
I am very happy to see progress
Does velocity works with uLarge boards too?
best regards
Antonio
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Great job Peter :thumbsup:
Thanks for your effort
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Great job and I love this tune :thumbsup:
Antonio
[WTB] Heatsinks for SIDs
in Fleamarket
Posted
Hi
if the heathsink that you have ordered are not self adhesive I would suggest to you
akasa thermal tape
http://www.akasa.com.tw/update.php?tpl=product/product.detail.tpl&type=Accessories&type_sub=Thermal%20Interface&model=AK-TT12-80
I used it and is very good and reliable and... not expensive
greetings
Antonio