Re: [time-nuts] HP 3314A ROMs
In message BANLkTi=fpfeupw+vl8rszz1r7bsa4nk...@mail.gmail.com, Joseph Gray wr ites: No luck so far. I wired up an adapter and tried reading the Mostek part as a 2764. All I got was zeros. I read that sometimes this is due to not enough power to read the old parts, so I plugged a wall wart into my programmer for extra juice (it's USB powered normally). This didn't help. I guess I'll have to wait until I get a proper definition for the software to read this part. Check if the MK36* need more than a single +5V supply... Old EPROMS usually needed two or even three different supplies. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] HP 3314A ROMs
In message BANLkTi=fpfeupw+vl8rszz1r7bsa4nk...@mail.gmail.com, Joseph Gray wr ites: No luck so far. I wired up an adapter and tried reading the Mostek part as a 2764. All I got was zeros. I read that sometimes this is due to not enough power to read the old parts, so I plugged a wall wart into my programmer for extra juice (it's USB powered normally). This didn't help. I guess I'll have to wait until I get a proper definition for the software to read this part. Check if the MK36* need more than a single +5V supply... Old EPROMS usually needed two or even three different supplies. On Mon, Apr 18, 2011 at 2:32 AM, Poul-Henning Kamp p...@phk.freebsd.dk wrote: Check if the MK36* need more than a single +5V supply... ?Old EPROMS usually needed two or even three different supplies. -- Poul-Henning Kamp ? ? ? | UNIX since Zilog Zeus 3.20 The Motorola MCM68766 is listed as a direct pip-for-pin replacement for the Mostek device. If your programmer can handle the Motorola part, you should be able to read the Mostek devices and write the data into a Motorola part. I bought a supply of the MCM68766 EPROMs a few years ago (Ebay), and still have a few. Jameco used to stock them, but apparently, no longer. I checked Ebay just now... there are several vendors selling them. One vendor is offerring ten in a package deal for $20 + S/H (Item # 350344738234). Cheers, David dgminala at mediacombb dot net ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] HP 3314A ROMs
It is 5 V only My goal would be to put all of the eproms into 1 modern one. On Mon, Apr 18, 2011 at 12:56 PM, Dave M dgmin...@mediacombb.net wrote: In message BANLkTi=fpfeupw+vl8rszz1r7bsa4nk...@mail.gmail.com, Joseph Gray wr ites: No luck so far. I wired up an adapter and tried reading the Mostek part as a 2764. All I got was zeros. I read that sometimes this is due to not enough power to read the old parts, so I plugged a wall wart into my programmer for extra juice (it's USB powered normally). This didn't help. I guess I'll have to wait until I get a proper definition for the software to read this part. Check if the MK36* need more than a single +5V supply... Old EPROMS usually needed two or even three different supplies. On Mon, Apr 18, 2011 at 2:32 AM, Poul-Henning Kamp p...@phk.freebsd.dk wrote: Check if the MK36* need more than a single +5V supply... ?Old EPROMS usually needed two or even three different supplies. -- Poul-Henning Kamp ? ? ? | UNIX since Zilog Zeus 3.20 The Motorola MCM68766 is listed as a direct pip-for-pin replacement for the Mostek device. If your programmer can handle the Motorola part, you should be able to read the Mostek devices and write the data into a Motorola part. I bought a supply of the MCM68766 EPROMs a few years ago (Ebay), and still have a few. Jameco used to stock them, but apparently, no longer. I checked Ebay just now... there are several vendors selling them. One vendor is offerring ten in a package deal for $20 + S/H (Item # 350344738234). Cheers, David dgminala at mediacombb dot net ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] HP 3314A ROMs
If you read the auction carefully it says AUCTION PRICE IS FOR ONE(1) PIECE. So check with vendor if price is for (1) or (20)!!! Dave -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Dave M Sent: 18 April 2011 17:56 To: time-nuts@febo.com Subject: Re: [time-nuts] HP 3314A ROMs I bought a supply of the MCM68766 EPROMs a few years ago (Ebay), and still have a few. Jameco used to stock them, but apparently, no longer. I checked Ebay just now... there are several vendors selling them. One vendor is offerring ten in a package deal for $20 + S/H (Item # 350344738234). Cheers, David dgminala at mediacombb dot net ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] HP 3314A ROMs
As promised in another thread, I'm trying to read the ROMs on my working 3314A. The six ROMs are Mostek MK36000, a 24-pin 8K x 8 part. My programmer doesn't list these. A little Googling shows that this part should be pin compatible with both the 2364 ROM and the 68766 EPROM. Neither one of these is in the list of supported devices for my programmer. I am awaiting an answer on how to add any of these chips to the software for my programmer. Once I have read the ROMs, I will upload to KO4BB. Joe Gray W5JG ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
