PCM Hammer P12 development

[Gampy]

It is a beast ... 7782 bytes is what I have test ready. Shh, don't tell nobody, it's a full write kernel with write disabled.

Only one way to find out.

One thing is for sure, it ain't C4!
If it goes boom it ain't gonna kill anyone ...

I could put it on a asm diet if needed.

[Tazzi]

mainly it just depends on how much ram its got, I think. thats a big beast, if its got 8kb usable... fingers crossed.

Is the ram internal or external on these Motorola chips?

[antus]

I think 4kb of that is unused buffer space, but it still could be smaller.

ram is internal, flash is external, eeprom is non-existant - its a software implementation using both sram and flash, hence the shutdown procedure to write a new vin to flash.

[Gampy]

Nope, it's all code, the buffer is not in the resulting binary.

No point in transmitting empty space ...

[Tazzi]

I think 4kb of that is unused buffer space, but it still could be smaller.

ram is internal, flash is external, eeprom is non-existant - its a software implementation using both sram and flash, hence the shutdown procedure to write a new vin to flash.

ok,. well I couldnt work out what the actually starting offset is for the RAM, but its suppose to be 32Kbytes of SRAM (FASRAM). Which is huge.

[Gampy]

I'm more worried about stepping on some important toes ...

[antus]

yeah that, some of it is used as shared ram with other chips (the timer at least). if its 8kb of kernel then is plus 4kb of buffer. I think the P01/P59 are 16kb total so that leaves the top 4kb for shared memory. Could be wrong about that its been a while since I was poking around in there trying to figure it out. If this one has 32kb it should be fine in that regard.

[Tazzi]

I'm more worried about stepping on some important toes ...

Theres important toes?

[Tazzi]

yeah that, some of it is used as shared ram with other chips (the timer at least). if its 8kb of kernel then is plus 4kb of buffer. I think the P01/P59 are 16kb total so that leaves the top 4kb for shared memory. Could be wrong about that its been a while since I was poking around in there trying to figure it out. If this one has 32kb it should be fine in that regard.

Im thinking it might be 32kb. If it can be uploaded at FFFF 2000... so... 32kb would be 0x8000.. so... FFFF A0 00??
Or.. if it starts from FFFF 1000 or even FFFF 0000.. this would make it FFFF 0000 to FFFF 8000.
Either way.. there should be alot of wiggle room from the 2000 offset??

[Tazzi]

It is a beast ... 7782 bytes is what I have test ready. Shh, don't tell nobody, it's a full write kernel with write disabled.

Only one way to find out.

One thing is for sure, it ain't C4!
If it goes boom it ain't gonna kill anyone ...

I could put it on a asm diet if needed.

taps foot waiting....