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Can you check how much ripple you are getting on the 8V supply?
I really can't think of what else to check. Your RAM is testing good now, right? Is anyone else having this problem? > Date: Thu, 26 Feb 2015 20:36:16 -0600 > From: litte...@mchsi.com > To: n8vem...@googlegroups.com > Subject: Re: [N8VEM-S100:6459] Re: CP/M running, But now what ? > > I'm using a working IMSAI chassis & power supply. > > Here's my session from cold power up; > > > ALTAIR/IMSAI 8080 CPU BOARD BOOT LOADER - Josh Bensadon (Jan 3, 2015) > <D> -Directory > <R> -RAM Test > <V> -View Load > >..... > BOOT BIOS.HEX, INIT_FAT > Init SD Type#2 ACMD41+MBR S Type06 PBR S VOL=NO NAME SYS=FAT16 > LOADING FILE BIOS.HEX -EXISTS > FILE SIZE=0x00004792 > > Execute at:DB00 > > ALTAIR/IMSAI 8080 CPU BOARD - Josh Bensadon v2.3 (Jan 2015) > > Init SD Type#2 ACMD41+MBR S Type06 PBR S VOL=NO NAME SYS=FAT16 > > M - Monitor > C - Boot CP/M > 1 - Disk A = DISK-A.BIN -EXISTS > 2 - Disk B = DISK-B.BIN -EXISTS > 3 - Disk C = DISK-C.BIN -EXISTS > 4 - Disk D = DISK-D.BIN -EXISTS > >c <user input ='c'> > ALTAIR/IMSAI CPU CARD. 61K CP/M 2.2 > > WBOOT > > a>dir <console dir> > A: MON-32K COM : ASM COM : BIOS ASM : STAT COM > A: CCSINIT COM : CCSYSGEN COM : CPM24CCS COM : DDT COM > A: DEBLOCK ASM : CBIOS ASM : CCBIOS ASM : CCBOOT ASM > A: DISKDEF LIB : DUMP ASM : DUMP COM : ED COM > A: GENMOD COM : MOVCPM COM : PIP COM : RLOCBIOS COM > A: STDBIOS ASM : SUBMIT COM : SYSGEN COM : XSUB COM > A: LOAD COM : -CCSCPM 251 > a>dir <RS-232 dir> > A: MON-32K COM > > a>b: > b>dir <console dir> > B: PIP COM : STAT COM : ZORK2 COM : ZORK1 COM > B: ZORK1 DAT : ZORK2 DAT > b>dir <RS-232 dir> > B: PIP COM > > b>c: > c>dir <console dir> > C: ZORK3 COM : ZORK3 DAT > c>dir <RS-232 dir> > C: ZORK3 COM > > c>b: <console> > b>dir > B: PIP COM : STAT COM : ZORK2 COM : ZORK1 COM > B: ZORK1 DAT : ZORK2 DAT > b>stat > A: R/W, Space: 72k > B: R/W, Space: 38k > C: R/W, Space: 151k > > > b>zork1 > > b> > > > > ----- Original Message ----- > From: "Crusty OMO" <cru...@hotmail.com> > To: n8vem...@googlegroups.com > Sent: Thursday, February 26, 2015 8:06:58 PM GMT -06:00 US/Canada Central > Subject: RE: [N8VEM-S100:6458] Re: CP/M running, But now what ? > > > Hi Todd, > > That is really weird! I don't have that trouble here. Both consoles produce the same results. > See picture below... all commands were entered by the Hyper terminal Console. > > What are you using for a back plane? Power supply? > > > > > > > > > > Date: Thu, 26 Feb 2015 19:19:54 -0600 > > From: litte...@mchsi.com > > To: n8vem...@googlegroups.com > > Subject: Re: [N8VEM-S100:6456] Re: CP/M running, But now what ? > > > > Josh, > > > > I run the console and terminal at the same time. > > > > I noticed this anomaly while doing "dir's" of Disk A,B,C& D > > as I looked for the X-modem/Zork files you mentioned. > > > > When I do DIR from the console I see all files on both displays. > > > > When I do DIR from the terminal I see just the first file in the > > directory on both displays. > > > > Otherwise they echo each other on display/keyboard. > > > > I found the Zork 1-3 files, D: was blank, but I found nothing > > on the X-modem. Also I can't get zork to load... I can switch > > to the drive, but when I type ZORKx it just loads from the SD and > > drops to the prompt. > > > > Todd > > > > > > > > > > > > > > > > > > > > > > > > ----- Original Message ----- > > From: "Crusty OMO" <cru...@hotmail.com> > > To: n8vem...@googlegroups.com > > Sent: Thursday, February 26, 2015 8:00:26 AM GMT -06:00 US/Canada Central > > Subject: RE: [N8VEM-S100:6453] Re: CP/M running, But now what ? > > > > > > Hi Jeffa, Todd, > > > > The latest image files on the wiki site include Martin Eberhard's X-Modem and some images with ZORK. > > > > Todd, I don't know why your RS-232 is only providing a partial directory.... that's very weird. Have you tried to connect the console I/O and the Terminal both at the same time? You can do this, and just watch the input from the other device. When you run DIR on the console I/O you should see the same output on both. Same goes for input from the terminal. > > > > The reason I prefer the terminal, is because you can use Martin's X-Modem in CP/M to upload/download files to the disk image. > > > > Yes, it would be nice to write some software that will read/write to the image files directly from windows, I just don't have the 16 hours to do this. Currently working on building a case for my Mark-8. > > > > Regards, > > Josh > > > > > > > > > > Date: Wed, 25 Feb 2015 20:02:46 -0800 > > From: jeffrey.h...@gmail.com > > To: n8vem...@googlegroups.com > > Subject: [N8VEM-S100:6453] Re: CP/M running, But now what ? > > > > > > > > > > > > I see the monitor has a XModem UL/DL feature, or will I have to create a "DISK-A" > > image and introduce my own files into it using a PC ? > > > > > > > > > > Ditto for me. :-) > > > > > > What is the procedure for introducing files into the DISKxxx images? It sure would be nice to have a chooser to copy files into the DISKxxx images from the local ms/dos, linux or osx file systems. > > > > > > Or how about in the ROM. You put a file on the SD card and hit some menu option to save it to the currently mounted A> (or x>) drive. > > > > > > - jeffa > > -- > > 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 n8vem-s100+...@googlegroups.com . > > 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 n8vem-s100+...@googlegroups.com . > > 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 n8vem-s100+...@googlegroups.com. > > 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 n8vem-s100+...@googlegroups.com . > 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 n8vem-s100+...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. |