[sdiy] OT? MIDI to RS232 converter box?

Chromatest J. Pantsmaker chromatest at azburners.org
Sat Jan 20 23:22:17 CET 2018


I've used some of the fakes. You just need to download the old driver. I
don't know which driver version off hand though.
On Jan 20, 2018 12:05 PM, <sleepy_dog at gmx.de> wrote:

>
> Beware of fake FT232 chips from eBay,
>> though. They may not support all the functionality of the genuine
>> chips.
>>
>
> I think the fakes don't work anymore at all, FTDI added something to the
> driver a while ago that bricks fakes, so those of the ebay china sellers
> who are selling fakes won't have good ratings for long.
> There was quite a controversy about that strategy, I won't go into it
> further ;)
>
> - Steve
>
>
> Am 20.01.2018 um 19:48 schrieb Ove Ridé:
>
>> FT232 (and maybe other  USB serial chips as well) can set custom baud
>> rates. Using this, it should be possible to directly connect to the
>> synth with a terminal emulator, assuming it can set custom baud rates.
>> That should completely remove the need for any additional
>> "intelligence". All you should need is a breakout board containing an
>> FT232 chip, a couple of resistors, and an optocoupler, which could be
>> fitted on some protoboard. Beware of fake FT232 chips from eBay,
>> though. They may not support all the functionality of the genuine
>> chips.
>>
>> On 20 January 2018 at 19:30, MTG <grant at musictechnologiesgroup.com>
>> wrote:
>>
>>> I'm looking to BUY a "simple" converter box that takes 5-pin DIN MIDI at
>>> one
>>> end and on the other true DB-9 serial (at say 38.4kbaud). So this would
>>> entail a microcontroller with a couple of circular buffers and 2 UARTs.
>>> NOT
>>> just a level-shifter-to-current-loop thing.
>>>
>>> I don't really want to build it from scratch if I don't have to. I don't
>>> want any other intelligence, but other baud rates and/or USB virtual
>>> serial
>>> would be fine. All I can see online is a $600 box and a bunch of
>>> etch-your-own board PIC kits. Oh and some DMX ones, but not sure about
>>> them.
>>>
>>> Reason: to run an old EPROM monitor in an old synth. The monitor utilizes
>>> the existing physical layer of 5-pin DIN MIDI, but on the host side the
>>> monitor is operated via a COM Port Terminal program like TeraTerm.
>>>
>>> I would have thought there were at least some old half-baked solutions
>>> for
>>> people that didn't want to pony up the big bucks for a MPU-401.
>>>
>>>
>>> _______________________________________________
>>> Synth-diy mailing list
>>> Synth-diy at synth-diy.org
>>> http://synth-diy.org/mailman/listinfo/synth-diy
>>>
>>
>>
>>
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