Malcolm Lear wrote:
I was looking at the QL schematics a few weeks back and noticed the
Microdrives use a serial bus. I guess this is bit banged by the software
to transfer data. Could this be connected to the SD SPI serial interface
using level shifters (5V - 3.3V)?
As always, things are
On 12/01/2011 12:30, Peter wrote:
Malcolm Lear wrote:
I was looking at the QL schematics a few weeks back and noticed the
Microdrives use a serial bus. I guess this is bit banged by the software
to transfer data. Could this be connected to the SD SPI serial interface
using level shifters (5V -
- Original Message -
From: Ian Pine ilp...@tesco.net
To: ql-us...@q-v-d.com
Sent: Tuesday, January 11, 2011 2:33 PM
Subject: Re: [Ql-Users] QL SD/MMC-Card interface survey
- Original Message -
snipped
Anything which works on the Q40 would be good, but something which
On 12/01/2011 12:46, Tony Firshman wrote:
On 12/01/2011 12:30, Peter wrote:
Malcolm Lear wrote:
I was looking at the QL schematics a few weeks back and noticed the
Microdrives use a serial bus. I guess this is bit banged by the
software
to transfer data. Could this be connected to the SD SPI
Tony Firshman wrote:
Speaking from pretty little low level knowledge, how about abandoning
the microdrives completely (I thought you were)
So far, I could have used just one SD card interface, keeping one
microdrive.
Abandoning the microdrives completely is an option I could think about.
On 12/01/2011 13:48, Peter wrote:
Tony Firshman wrote:
Speaking from pretty little low level knowledge, how about abandoning
the microdrives completely (I thought you were)
So far, I could have used just one SD card interface, keeping one
microdrive.
Abandoning the microdrives completely is
If I remember right, emultating a microdrive completely is probably not a very
good idea - The electrical intarface to the drives is typical minimalist
Sinclair technology and consists of 3 adress lines to adress the drive (0-7),
a motor start line and a read and write line. There's no way to
