SD Card disk drive for C-64?

Jim Brain brain at
Sat Jan 23 18:33:21 CST 2016

On 1/23/2016 6:28 PM, Eric Christopherson wrote:
> On Sat, Jan 23, 2016, Jim Brain wrote:
>> On 1/23/2016 2:18 PM, drlegendre . wrote:
>>> First off, my bad - I thought the OP was wanting to change the device ID
>>> (which is not the drive number, btw**) on a genuine 1541. I'd have no idea
>>> how it's done with one of the SD-based drive emulators.
>> Google is still a friend:
>> There are no external switches on some of these drives.
>> But, the BASIC commands used to switch device numbers on the 1541 also work
>> on these units, and putting an extra char at the end of the command will
>> make the changes permanent, as I recall.
>> Jim
> Jim, don't you sell a device that's useful for temporarily switching off
> specific drives so the device numbers can be changed more easily?
QuadPortIEC, but you can also just switch the ATN line on the cable.  
Disabling the ATN (Attention) line means the drive will not respond to 
any commands.


Jim Brain
brain at

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