INTL 3:770/1 3:770/3
REPLYADDR kjambrose@gmail.com
REPLYTO 3:770/3.0 UUCP
MSGID: <0d636b16-7b74-4831-bec2-4efc2c538a33n@googlegroups.com> 67a4d8e3
REPLY: c6b429ba
PID: SoupGate-Win32 v1.05
On Friday, May 6, 2022 at 12:42:48 PM UTC-7, Paul Förster wrote:
> Hi,
> On 06. May, 2022 at 09:54:55 CEST, "Daniel Path" wrote:
>
> > SD2IEC works perfectly with a c128, but i think any other device will do.
:)
> I second that. I love my SD2IEC. ðŸ‘
>
> Cheers
> Paul
So my physical 1541 prevents the C128 from completing boot up when the drive
is powered on and serial cable connected. If I kill the power to the drive
while the 128 boot up is hung, the 128 completes booting. Same if I
disconnect the serial cable
while the 128 is hung on bootup. And the drive does not respond to load
command, 128 reports drive not ready.
I opened the drive case, board is internally very clean, and no burnt or
bloated caps. I am guessing one or more of the logic chips is bad. Looks
like the MOS chips are from 1984. I am using an aftermarket serial cable, the
cable pins look correct
when compared to online pics, and continuity pin to pin on each end is good.
I guess these serial cables are supposed to be pin to pin straight wired.
If I get some ambition in the next few days, I will use my scope to check for
activity on the logic chips. My understanding is that with the scope ground
on a chip ground and scope lead on address or data pins, I should see high
speed voltage
oscillation, indicating logic activity...
Hate to give up on all my floppies, even if I pick up an emulator...
--- SoupGate-Win32 v1.05
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