Re: [time-nuts] Looking for IEEE-488 codes and formats for Datum 9700AT Programmable Time System

2018-04-09 Thread Bob kb8tq
Hi Yes, there is what appears to be a socketed ROM on the board. Next step seems to be to dump the ROM and see what’s inside. Bob > On Apr 9, 2018, at 3:55 PM, Forrest Christian (List Account) > wrote: > > Just curious, is there by chance a removable eprom or other

Re: [time-nuts] Looking for IEEE-488 codes and formats for Datum 9700AT Programmable Time System

2018-04-09 Thread Forrest Christian (List Account)
Just curious, is there by chance a removable eprom or other programmable device on these boards? Assuming a fairly verbose scpi like command interface, I've occasionally had luck reverse engineering a command set by looking through an eprom dump for a list of commands? Also, does this by chance

Re: [time-nuts] Looking for IEEE-488 codes and formats for Datum 9700AT Programmable Time System

2018-04-09 Thread Bill
I have two of these with 488 interfaces. Would appreciate any 488 info you get. br...@otelco.net -Original Message- From: Bob kb8tq Sent: Saturday, April 07, 2018 10:27 PM To: lee...@aol.com ; Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Looking for

Re: [time-nuts] Looking for IEEE-488 codes and formats for Datum 9700AT Programmable Time System

2018-04-07 Thread Bob kb8tq
Hi Actually the manual is moot on any sort of remote control. The RS-232 section refers you to an insert in the back of the manual. I’d guess that the 488 stuff was done the same way. Nasty question: Are you sure you have the 488 option installed? It would not be the first piece of gear