I don't have a SMB board. Any available? If so I can look at options for both.
On Sat, Jun 7, 2014 at 12:25 PM, Tom Lafleur <[email protected]> wrote: > When you make the panel for the front, look at an option for us who may > want to install an SMB front panel board > > Thanks > > > ~~ _/) ~~~~ _/) ~~~~ _/) ~~~~ _/) ~~ > Sent from my Phone > > > On Jun 7, 2014, at 3:07 PM, Fabio Battaglia <[email protected]> wrote: > > This is great! > I'll definitely be interested in the chassis, multiple fpmini boards and > if someone does a group buy of paddles, those too. > > Fabio > On Jun 7, 2014 6:53 AM, "Don Caprio" <[email protected]> wrote: > >> Josh, Rich, and S-100 gang, >> >> The Imsai front panel S-100 (aka fp-mini) was stalled for quite some >> time. Family, work and >> remodel project left no spare time. >> >> Looks like we have new life on the project. Many, many thanks to Josh who >> got one of prototype >> boards and worked out the final bugs. Looks like The next prototype >> should be our last before >> production run. >> >> This board is a bit pricey due to the cost of the mini paddle switches. A >> completed set of paddle >> switches goes for ~ $125.00. My source for the toggles left the company >> so I'm finding a new >> contact and pricing. >> >> The FP-Mini and Josh's new 8080 board is going to make a fantastic, two >> board complete system. >> >> I'm working with a local sheet metal fabricator on a mini-chassis based >> around the fp-mini and the >> S-100 8 slot mother board. I needed a chassis design for the next board >> layout. We'll need to move >> switches around and provide mounting holes on the PCB. Anyone who has >> ideas or experience >> creating a photo mask for the Plexiglas section drop me a line. It may be >> as simple as printing a >> transparency on a laser printer. >> >> Once I get a final price on the chassis I'll send out a notice to see >> who's >> interested. The more we order the cheaper they are. I've mocked up a >> prototype of the chassis >> for your review and comments. >> >> Thanks. >> >> <mini-fp-chassis-small.jpg> >> >> <mini-fp-chassis-top-small.jpg> >> >> >> >> On 06/ 6/14 07:55 AM, Crusty OMO wrote: >> >> Thanks John, >> >> Andrew, >> >> That would be great if you could do a fill on the area around the >> regulator, or perhaps walk me through it? The other error about pads being >> next to each other doesn't matter, I just over rule the computer's >> objection. >> >> Cheers, >> Josh >> >> >> ------------------------------ >> From: [email protected] >> To: [email protected] >> Subject: RE: [N8VEM-S100:3991] ALTAIR/IMSAI 8080 CPU replacement board >> Date: Thu, 5 Jun 2014 21:26:15 -0700 >> >> Josh, Andrew may be able to brush it up. He is a marvel at that these >> things >> >> John >> >> >> >> >> >> *From:* [email protected] [mailto:[email protected] >> <[email protected]>] *On Behalf Of *Crusty OMO >> *Sent:* Thursday, June 5, 2014 8:29 PM >> *To:* [email protected] >> *Subject:* RE: [N8VEM-S100:3990] ALTAIR/IMSAI 8080 CPU replacement board >> >> >> >> Hi John, >> >> I uploaded the board, schematic(s), gerber files and firmware file to the >> Wiki site. >> Look in >> Board Information, S-100 boards, S-100 ALTAIR-IMSAI 8080 CPU Board >> >> The DRC produces 2 errors which I don't know how to suppress. >> 1 error is a drill pad next to a mounting pad for the SD card, I >> oversized the pads and they overlap. Neither pad is an active pin or >> conductor, the drill is just a pilot hole to position the SD card socket, >> the pad is just to solder the body of the socket. >> The other error(s) are from a bunch of traces I dumped around the voltage >> regulator to act as some extra heat sink. I should really do a "fill" in >> that area, but I don't know how and it's just easier for me to zig zag some >> wide traces to do the job. I ignore the errors, the gerber files look good. >> >> The firmware file is just a modification of my 8080 monitor program. >> It's been modified to use the 8250 UART's, and it also has the start of the >> SPI/SD card interface. I only got as far as receiving the 0x01 status byte >> from the SD card, which means it initialized successfully and I am able to >> talk to it. In the weeks to come, I'll return to working on the firmware >> to get it to boot CP/M from the SD card. But first, I must make some >> progress with my ELF projects. >> >> Cheers, >> Josh Bensadon >> >> >> >> ------------------------------ >> >> From: [email protected] >> To: [email protected] >> Subject: RE: [N8VEM-S100:3982] ALTAIR/IMSAI 8080 CPU replacement board >> Date: Thu, 5 Jun 2014 09:20:20 -0700 >> >> Josh, great work – you must have a lot of time on your hands! >> >> Could you put me down for 2 boards. >> >> Also could you point me to the most current schematic/board diagram >> >> Thanks >> >> John >> >> >> >> >> >> *From:* [email protected] [mailto:[email protected] >> <[email protected]>] *On Behalf Of *Crusty OMO >> *Sent:* Wednesday, June 4, 2014 7:20 PM >> *To:* [email protected] >> *Subject:* RE: [N8VEM-S100:3964] ALTAIR/IMSAI 8080 CPU replacement board >> >> >> >> Hi Guys, >> >> Well I'm finally done laying out this board. The autorouter only >> produced swiss cheese with over 900 via's. It looked terrible! >> Anyway, I scrapped everything the autorouter did initially, and proceeded >> to layout the traces manually. Once I got what I thought was all the hard >> parts done, I let the autorouter have another go at it. Again it did not >> work out so well and it was unable to complete the board, so I proceeded to >> undo it's changes and/or improve it's routing manually. I squeezed those >> traces in there tight, any tighter and they'll be popping off the board. >> Anyway, I'm working on the silkscreen layer and ready to do a run. >> Here's a picture of the board layout.... >> You can see the serial port connections on the top left, SD card to the >> right of the 27C256 EPROM, parallel ports next to that and the ALTAIR and >> IMSAI front panel connectors. There are also a few jumpers around the >> board to configure for CPU or Peripheral board only and ALTAIR/IMSAI mode. >> Firmware for the board will be my next project, but I have to make >> preparations for VCF-MW my priority. Dave Ruske and I will be doing a >> COSMAC 1802 exhibit there in September. >> >> >> >> <mime-attachment.jpg> >> >> >> >> Cheers, >> Josh Bensadon >> >> >> >> >> ------------------------------ >> >> From: [email protected] >> To: [email protected] >> Subject: RE: [N8VEM-S100:3711] ALTAIR/IMSAI 8080 CPU replacement board >> Date: Sun, 18 May 2014 00:57:20 +0000 >> >> Hi Guys, >> >> Well, this project has just reached a milestone. The hardware is tested >> and working. I had some rewiring to do to make it work for the ALTAIR, I >> thought the ALTAIR and IMSAI front panels were (near) identical, but they >> are not. >> There are some jumpers on the board to configure between ALTAIR and IMSAI. >> >> Here's a picture of my debugging and testing setup. The board is being >> tested in the ALTAIR. >> >> >> >> <mime-attachment.jpg> >> >> >> >> >> Now entering Phase 2... building a PCB. >> >> Cheers, >> Josh Bensadon >> ------------------------------ >> >> From: [email protected] >> To: [email protected] >> Subject: RE: [N8VEM-S100:3666] ALTAIR/IMSAI 8080 CPU replacement board >> Date: Tue, 13 May 2014 13:56:05 -0700 >> >> Very nice Josh! >> >> John >> >> >> >> *From:* [email protected] [mailto:[email protected] >> <[email protected]>] *On Behalf Of *Crusty OMO >> *Sent:* Tuesday, May 13, 2014 1:19 PM >> *To:* [email protected] >> *Subject:* RE: [N8VEM-S100:3664] ALTAIR/IMSAI 8080 CPU replacement board >> >> >> >> Hi Group, >> >> Well, I'm cooking up this board at the moment. I have all the hardware >> figured out to run like the original CPU boards. >> I need to do a little more testing of the hardware, then I'll proceed to >> building the boards. >> The Memory, I/O, UARTs and SPI interface to the SD card appear to all be >> working. >> 8K chunks of memory can become either ROM, RAM or mapped off the board. >> >> CPU: 8080A >> UARTS: 2x 8250 >> RAM: 2x 32K >> ROM: 32K >> I/O: 8 input, 6 output pins >> SPI to SD Card interface >> ALTAIR & IMSAI Front Panel Connectors. >> >> Where ROM is selected in a block it overlaps the RAM on reads, but writes >> go through to RAM. >> The ROM can then be disabled and reads will come from the RAM at that >> location. >> The firmware is copying itself to RAM then switching off the ROM. >> The CPU can be deselected with jumpers and the board will work as RAM/ROM >> and I/O for another CPU on the bus. >> >> Pictures attached. Yellow-Data, Brown-Address, Blue-I/O, >> Green-Control/Status & everything else. >> >> Regards, >> Josh Bensadon >> >> >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "N8VEM-S100" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "N8VEM-S100" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "N8VEM-S100" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "N8VEM-S100" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "N8VEM-S100" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "N8VEM-S100" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "N8VEM-S100" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> -- >> You received this message because you are subscribed to the Google Groups >> "N8VEM-S100" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> >> -- >> Don [email protected] >> >> -- >> You received this message because you are subscribed to the Google Groups >> "N8VEM-S100" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> > -- > You received this message because you are subscribed to the Google Groups > "N8VEM-S100" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "N8VEM-S100" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- ------------------------------- Don Caprio [email protected] http://www.uxpro.com (925) 240-UNIX -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
