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→ **MyCalcs** profile · by **critor** » 08 Feb 2018, 22:21

For a 1st release, I think you should keep things as they are.

For another release, yes I think you should support as many Boot2 versions as possible, of course if there is no size limit issue for both currently available and missing features.

With nBoot+ControlX, the only limit I had was the SDRAM capacity.

→ **MyCalcs** profile · by **parrotgeek1** » 08 Feb 2018, 22:52

→ **MyCalcs** profile · by **critor** » 08 Feb 2018, 22:59

CM Boot2 can be useful too, yes.

→ **MyCalcs** profile · by **parrotgeek1** » 08 Feb 2018, 23:05

→ **MyCalcs** profile · by **parrotgeek1** » 09 Feb 2018, 00:33

→ **MyCalcs** profile · by **critor** » 09 Feb 2018, 14:27

Not related.

I've seen you added an automatic overclock yesterday, coping the Nlaunch* and ControlX config :
https://github.com/parrotgeek1/TI-Nspir ... ecd6708508
https://github.com/parrotgeek1/TI-Nspir ... 9b3bc461c0

A problem is that this config is taylored for CM, and CX HW A-V.

Original CM and CX HW A-V config :
Base=264MHz
CPU=132MHz
AHB=66MHz

CM and CX HW A-V next AHB-safe config :
Base=198MHz
CPU=198MHz
AHB=66MHz
We can't significantly increase the AHB, since it then starts silently corrupting your NAND content.
It's hard to figure out the limit value, but I know 80MHz for exemple is not safe.

The CX CR4+ (HW W+) original config is different, and the AHB being very important for memory access I think you may be slowing down these calculators by setting the above config :
Base=312MHz
CPU=156MHz
AHB=78MHz

The next AHB-safe config for CX CR4+ (HW W+) would be :
Base=234MHz
CPU=234MHz
AHB=78MHz

But unfortunately, not all calculators are going to be safe at 234MHz, at least for CM and CX HW A-V. I've seen some being unstable at 210MHz.

You might need to check the hardware if possible, and use two different configs.
Another solution which might be ok would be to set the CR4+ (HW W+) original config on all devices.

I knew I would have had to to work on this for a ControlX update, if a Boot1 4.0 based nBoot had been released.