Posté le 22/02/2015 18:06
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Citer : Posté le 22/02/2015 18:12 | #
Hi,
Please, refer to this :
http://www.planet-casio.com/Fr/forums/topic13413-1-Product-ID.html
Citer : Posté le 22/02/2015 18:13 | #
You can get my informations here (line 31).
By the way, have you published your OS database ? I'm always waiting for it
Citer : Posté le 22/02/2015 18:14 | #
More precisely, Dark Storm's calculator indicates :
→ OS Ver : 02.04.2201
→ Date O : 2014.0121.1701
→ Date A : 2011.0525.1010
Citer : Posté le 22/02/2015 18:24 | #
Thanks for this information. So it's just a Graph 75 ...
By the way, have you published your OS database ? I'm always waiting for it
Still working on the ClassPad 300 OS 1.00 dump.
I'm currently investigating some boot code routine doing the ECC correction.
Citer : Posté le 22/02/2015 18:36 | #
Do you know the address of model type ?
Citer : Posté le 22/02/2015 18:42 | #
This?
0xA0000300 or 0x80000300
Citer : Posté le 22/02/2015 18:46 | #
So it's located at the beginning of P1/P2 protected space.
Isn't there any « copy » in the ram ? I often noted that calculator information was present in ram.
Citer : Posté le 22/02/2015 18:55 | #
@TeamFx: ok, thanks for your help.
Citer : Posté le 22/02/2015 18:55 | #
So it's located at the beginning of P1/P2 protected space.
Isn't there any « copy » in the ram ? I often noted that calculator information was present in ram.
0xA....... means uncached access.
Slow but does not need the cache system.
0x8....... are cached addresses.
Fast but may have some side effects.
0xA0000000..0xA0010000 is the boot code area.
0xA0000300 resides within the boot code area.
There are a few on-chip memory variables like "is_g2_model" (4 bytes, boolean) at 0xA5603A98 (SH-3).
There might be more, but it's complicated...
Citer : Posté le 22/02/2015 19:03 | #
0xA....... means uncached access.
Slow but does not need the cache system.
0x8....... are cached addresses.
Fast but may have "side effects" like cache interrupts.
I knew for cached access. But what do you mean by « cache interrupts » ? Since I am currently working on a proper interrupt system, you'll understand I'am intersted in this kind of information.
I alors set vbr in P1 to avoid MMU operation.
There are a few (on-chip) RAM variables like "is_g2_model" (4 bytes, boolean) at 0xA5603A98 (SH-3).
There might be more, but it's complicated...
I was mainly talking about system variables, but it's true that the calculator model is not depending on the system...
Citer : Posté le 22/02/2015 19:22 | #
I was actually referring to some TLB events but these don't mess with the cache...
I don't know, there might be other things that have to be considered when using the cache system. I did not look into this.
Citer : Posté le 22/02/2015 19:29 | #
As far as I know, TLB events are not related with the cache, but with contention between two processes writing in the same virtual memory area...
Citer : Posté le 22/02/2015 19:43 | #
I was mainly talking about system variables...
It is a system variable. The OS uses this in the diagnostic routine.
Citer : Posté le 22/02/2015 19:51 | #
Well reasoned. But it exists regardless of the operating system, unlike language or configuration for example.
Citer : Posté le 26/02/2015 17:57 | #
To be absolutely sure that the Graph 75+ OS is identical with the official OS 2.04.2201, we need to check the OS checksum.
Press [OPTN]+[x10^x]+[AC/ON],[F1],[9],[+],[EXE]
OS SUM 0000 OK <- what is the hex value?
ABS SUM 0000 OK <- what is the hex value?
ABS is the boot code.
Citer : Posté le 26/02/2015 22:36 | #
I have changed my OS, so even if I have a G75+, it's OS is a 2.04.2201 get on Planete Casio
OS sum: 086F
ABS sum: A781
Citer : Posté le 27/02/2015 13:28 | #
Well, then it's useless...
Citer : Posté le 27/02/2015 20:39 | #
@Dark Storm : Didn't you create a backup of your original OS before erasing it ?
Citer : Posté le 27/02/2015 23:30 | #
I've tried, but didn't succeed. I couldn't imagine that Teamfx would ask me for infos about that.
Anyway, original OS was a 2.04.2201, I'm sure of that.
Citer : Posté le 11/02/2017 16:09 | #
It appears that I have such a new Graph 75+ (exam model) right now, so @TeamFX here is the information you requested:
- Top row information: [CY802A MAIN] 011
- OS Version: 02.05.2201
- DateO: 2015.0207.1639
- DateA: 2011.0531.1709
- OS sum: 45E7
- ABS sum: A78D
Does it confirm what you thought back then?