NefMoto

Hi,

Anyone willing to share confirmed free ram variables in IRAM for 4Z7907551R/N? I'm using 0xFB8x adresses but they seems to be used somewhere which results in random ECU resets. Thanks in advance!

What are you doing?

Ida Shows you mostly if used or not.
But there is enought free

Not really, addresses used by pointers aren't shown in IDA

Most of upper extram is free, especially the part where the bootloader gets copied to.

I know about extram free locations, but thanks. Just wanted to go the lazy way and ask about confirmed free locations in internal ram. I'm porting the code I used in 551M and I'm too lazy to add those extp instructions ;)

Disassemble and confirm, only way.

Why do you need IRAM exactly?

I always go with Xref, if Xref show that variable is only used in my function, that is it. Works every time so far

That's a silly way due to few addressing methods, arrays, eeprom ram copy and so on
Best way is the Ida and log this var at warmup cycle

It's a 2 min deal if it's your own code with a sources  ;)

I am talking abot IDA, I write variable in custom code and press X, if is not used anywhere else I use it.
Work so far in various ECUs(at least 10 of them with different software) so it is was pre luck I don't know   ???

Yes it's luck.