[hamei]

I have ordered new interface board ...

Might have been easier and cheaper to just get a new Dallas, with the serial number you want

[weblacky]

Really dumb question - the manuals keep saying Ctrl+T to go from console mode (passive output viewing only) to L1 command mode.

They both have capital letters after the Ctrl. Have you tried both Ctrl + t and Ctrl + Shift + t?

My Tezros are out of commission and no other machine I own uses an L1. But I find it odd that several system manuals do say that, I doubt it’s just an attention getter in the text.

So, just making sure you tried that.

[Irinikus]

I always start my Tezro using the serial console, using SerialTools on my Mac Pro 2013. (I'm obviously using a USB to Serial dongle on this machine.)

If my Tezro has been unplugged, then I usually have to type in: "Ctrl + d" to wake it up and then "Ctrl + t" to get an L1 prompt.

Usually I just have to type in Ctrl + t.

[weblacky]

ah, ok just checking- all the system manuals capitalize the D & T. Figured there must be a reason.

[Irinikus]

It's definitely a small "t" or "d".

[weblacky]

Well darn,
I’m extremely frustrated about this, it’s upsetting that we’ve seen a pattern across multiple posts that there is a chicken & egg problem with JUST Tezro. Where the L1 won’t become ready to accept input without some form of initialized RTC NVRAM!

Chip swap has shown it’s likely using a Fuel (which is presented in one source as being able to have L1 become ready on bad RTC data). To initialize a new RTC in a Fuel using the serial set command. But once tried in a Tezro, the serial is flagged invalid, but the Tezro L1 will still become ready and then you can again use the serial set command to correct the SSN in the Tezro.

Is this the only confirmed way? Does anyone else have a different experience with changing the RTC?

[weblacky]

Khral- since you have a node board coming, I assume you’ll be trying your backup/restore programmer on the chip it comes with. This is starting to sound like the only long-term solution....

When you do this could you please verify and report to us:

1. Selection of programmer IC profile that worked when you’re successful in replacement and SSN set.

2. If you used just the programmer or did you need a socket adapter, if so which one.

3. When you backup the replacement Nodeboard RTC, did you restore that backup into a new RTC and try it on the old nodeboard. What were the results?

4. If results were the L1 command prompt comes up, was there still a complaint about the SSN? Or did it accept the replacement board serial number as valid?

5. does it allow you to change the serial to your system’s native (sticker serial) using the serial set command, if so what steps worked?

6. If it did not allow you to save a new serial number and only the replacement image worked as-is, please let us know.


We really need to know a couple things, is there a way to end up with the correct system serial after all this? If not, then we’ll need to start backing up working RTCs now before failure.

[hamei]

I find it odd that several system manuals do say that, I doubt it’s just an attention getter in the text. 

Guessing that it's a leftover from using real terminals that don't have upper and lower case.

Just to confirm, lower case t and d work fine here too.

[jwhat]

Hi Hamei, Weblacky, Kral and co,

while Khral, has got new node board I am in process of getting my hands on Fuel.

This is kind of an expensive option though and no where as simple as being able to use a chip programmer.

If the Fuel option works as a repeatable process:

Dallas -- into --> Fuel (to initialise Dallas) -- into --> [ Chimera (O350/Tezro) || Numalink (to get around security) ]

Then could generate "standard" Fuel chips via programmer with no need to understand the details of the chip data layout and then just plugs these into any Chimera machine (Tezro or O350).

Cheers from Oz,


John.

[weblacky]

Yeah, however like you said...expensive option. After seeing this, I'm more open to "and once you have your Tezro RTC working and correct, back it up with a programmer...so you can clone it to new (even battery-modded) RTCs...forever." Because the Fuel might not work when you need it. But this is good info nonetheless!