On Fri, Jan 22, 2016 at 5:56 PM, drlegendre . <drlegendre at gmail.com> wrote: ?How are the jumper on the reak floppy to be set?? *Mike's ?*

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. "Given the potential flakiness of 1541 drives, why make permanent hardware changes when a basic program allows you to assign the drive to whatever you want for the temporary need of the day?" Though I'm not entirely sure it exists, any "potential flakiness" is probably a very good reason to make the change in hardware. Device IDs assigned via software (with a M-W command to the DOS) don't persist between drive resets and may not persist between serial bus resets either, for that matter. So if the drive does screw up and requires a power cycle, you're back to device 8 again afterwards. This means shutting off one drive, re-assigning the device ID to 9 or whatever, then powering on the second drive. If you're using more than two drives, it really becomes a hassle. In any event, just install a switch (or pair of them..) on each drive and all is well. (** Devices on the CBM serial bus (or IEC bus) have device IDs, with the disk drives usually being 8,9,10 and 11. Each device can actually have two physical drives, 0 and 1. Now in the later era (1540 and beyond) there's only one physical drive per device, which is device 0, the default. But in case you ever wondered why the correct syntax for a DOS command has this "extra" 0:, now you know - as in OPEN 15,8,15,"I0:". It's explicitly specifying drive 0.. as opposed to drive 1.) On Sat, Jan 23, 2016 at 8:00 AM, william degnan <billdegnan at gmail.com> wrote:

On 1/23/2016 2:18 PM, drlegendre . wrote: Google is still a friend: https://www.google.com/search?q=sd2iec+change+device+numbers&ie=utf-8&a… 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

On 01/23/2016 05:07 PM, william degnan wrote: So I hooked it up like *will *said ans changed the original olsskool floppy to 9 but when I put a disk in there and it calls for a save dist it tryes to grab from ,8 also I Have no clue on how to change disks on the SD floppy when it calls for a save disk like I use Fleet System 2+ doe my word processing and database needs and If I am just trying yo use the SD drive I can not change disks and all you get is 1 peice of paper for instructions and it pretty much says this... /These are my recommendations and not the ONLY way of using an SD2IEC. Id you are already a Commodore disk drive user, you'll get the hang of it in decondsif you have never used a reak disk drive, follow the instructions here, and you'll soon be useing your Commodore like a grown up! / *Breif **explanation of how to prepare an SD card, install file Browser and create a simple directory structure.* Format an SD card as fat16 or fat 32. In most circumstances a QUICK FORMAT will do. if you are having trouble useing your SD card with youir SD2IEC, use https://www.sdcard.org/download/formatter_4/ Download the latest version of file browser http://www.vic20.it/cbmfilebrowser/ and extract all of the content of "PROGRAMS" to the root of the of you blank SD card. Delete the txt file and trmove the extensions from the FB files.. eg.. fb.<NOTHING> FB16.<NOTHING> ect.. /to keep file structure neat, create directories for your files. somthing like thos... / /Volume in H is SD2MASTER Volume serial number is 1F81-c3D5 Directory of H:/ 23/4/2013 13:16 <DIR> C64 ///23/4/2013 13:26/ <DIR> C16 //23/4/2013 13:16 <DIR> VIC20 ///23/4/2013 13:16 18:56 792 fb ///23/4/2013 13:16 07:45 2,219 fb16 //23/4/2013 13:16 18:24 1,330 fb20 ///23/4/2013 13:16 18:24 2,079 fb20-3k ///23/4/2013 13:16 18:24 2,119 fb20-8k ///23/4/2013 13:16 18:24/ 3,023 fb20-mc //23/4/2013 13:16 18:24 2084 fb64 //23/4/2013 13:16 18:24 2,258 fb64dtv //23/4/2013 13:16 18:24 2,131 fb1218 //23/4/2013 13:16 18:24 279 thefuturewas8bit.txt 9 file(s) 18,134 bytes 4 Ddirs 168,607,744 bytes free I have done everything the instroctions have said it will load up but I am still havinf 2 problems 1, I have no Idea how to use disk swap on the sd caed and my ,9 floppy when I am in basid I can typr LOAD "*",9,1 AND IT WILL WORK BUT AS SOON AS IT ASKS YOU TO FLIP THE DISK IT TRYS TO READ GROM ,8??? AND THAT IS WHERE MY SD CARD ID. GRRRRRRRRRR /

On 1/23/2016 6:28 PM, Eric Christopherson wrote: 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 -- Jim Brain brain at jbrain.com www.jbrain.com

Pardon the quick re-post.. FYI, you don't actually need a BASIC program to change a drive ID. This 'one-liner' will do the job just fine: OPEN 15,8,15:PRINT#15,"M-W";CHR$(119);CHR$(0);CHR$(2);CHR$(*device number* +32)+CHR$(*device numver*+64):CLOSE 15 Again, this change will not persist between drive (and possibly IEC bus) resets. The drive will reset to its original hardware-assigned device number (8 on an unmodified drive) upon reset. On Sat, Jan 23, 2016 at 7:15 PM, drlegendre . <drlegendre at gmail.com> wrote:

Jim, That's an interesting and colorful narrative, and much of it makes good sense - in the giddy days of the 1980s home computer market, and for CBM in particular. But speaking as one who was fairly hot & heavy into the VIC-20 (and then almost immediately the C-64), this 'drive ID' issue has more-or-less dogged us since day one. While it's true that +most+ end-users couldn't or didn't buy a second 1541, it was very common to connect two or more drives to a single machine for demonstrations, software shows, user group meetings or what might have been the 1980's equivalent of the LAN party.. where we shared & swapped software. And on top of that, as time wore on, there were a number of programs that supported multiple drives. So we can agree that Jack, being Jack, had his reasons. But ultimately, I still see this decision as short-sighted. There's a reason that the circuit board jumper pads were well-publicized, as were the many text files on adding device ID switches to the 1541. On Sat, Jan 23, 2016 at 7:33 PM, Jim Brain <brain at jbrain.com> wrote:

On 1/23/2016 8:58 PM, Eric Christopherson wrote: The one I saw at the WoC was a 8" drive connected to a PSU and the cable attached to a small PCB that replaced the editor ROM in the PET. THe PCB mapped a controller into the address space and the editor ROM was patched to support a DOS. It was an interesting setup. Mike N (of 6502.org) had the unit. Steve Gray on here was there too and could provide more details. Jim -- Jim Brain brain at jbrain.com www.jbrain.com

I can't say much about the other brands, but so far as Apple was concerned, you're exactly correct. The Apple Disk II drives were quite 'dumb' and required a disk controller card (installed in a slot, on the motherboard) plus a software DOS (3.2, 3.3, etc.) loaded at startup from a bootable disc. If one weren't careful, it was no trouble to start up an Apple II machine, write a nice piece of BASIC code, and then be unable to save it to disc - as the DOS had not yet been loaded. Very annoying, but not a mistake you'd make more than once or twice.. as loading the DOS requires a system reset, losing anything in RAM at that time. On Sat, Jan 23, 2016 at 8:58 PM, Eric Christopherson < echristopherson at gmail.com> wrote:

On Sat, Jan 23, 2016, drlegendre . wrote: I'm feeling my C128 privilege here -- the 1571 and 1581 always had DIPs for just that purpose, and I never even realized the 1540/1 didn't. -- Eric Christopherson