Re: Has anyone fully decoded the X9000 memory mapping?
@ Dennis,
You are still doing better than me...When it comes to this family of boards I'm in the "Everybody knows pie are round. Cornbread are square" camp.
A Pico as What kind of peripheral?
@
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swguest
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#306
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Re: Has anyone fully decoded the X9000 memory mapping?
Check this out.
https://github.com/electrickery/ROM-emulator
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Casey Crane
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#305
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Re: Has anyone fully decoded the X9000 memory mapping?
That was what I thought. You get the advantage of the robustness of the
differential lines as well. I wish the pins and cable assembly ends were
more plentiful. If we get that far the physical
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Casey Crane
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#304
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Re: Has anyone fully decoded the X9000 memory mapping?
You know, a cute way to talk to the Pi inside the radio would be to put
it on the SB9600 bus as a peripheral.
De
By
Dennis Boone
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#303
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Re: Has anyone fully decoded the X9000 memory mapping?
It sure would be interesting to see how it all works.
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Casey Crane
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#302
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Re: Has anyone fully decoded the X9000 memory mapping?
Guess I need to really dig into this beast instead of shooting off my
mouth! :)
De
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Dennis Boone
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#301
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Re: Has anyone fully decoded the X9000 memory mapping?
It appears I told a lie. The Micro Pi _isn't_ a linux box. But you
_can_ program it in C, which is the sane plan here.
De
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Dennis Boone
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#300
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Re: Has anyone fully decoded the X9000 memory mapping?
That sounds so much easier than I was thinking. I've got to take a close look at this DMA/state machine stuff
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swguest
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#299
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Re: Has anyone fully decoded the X9000 memory mapping?
Yea, it's not the processor it's who programmed it! I bow to the genius.
73's Skip WB6YMH
<swguest@...> wrote:
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Skip Hansen
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#298
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Re: Has anyone fully decoded the X9000 memory mapping?
@ Ship,
Isn't it amazing.
A lowly 35+ yo, 2 meg clocked processor can generate and decode sub audible frequency to tenth of a hz better than all these fast, powerful embedded uC's out there.
That just
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swguest
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#297
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Re: Has anyone fully decoded the X9000 memory mapping?
Actually ... You *could* do it in Python (or Basic if such a thing
exists) on the Pi Pico. The Pi Pico's programmable parallel port can
do **ALL** of the heavy lifting given the right program. Take
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Skip Hansen
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#296
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Re: Has anyone fully decoded the X9000 memory mapping?
Dang it Dennis,
That's another rabbit hole on the map.
I hadnt looked into it at all. All I picked up on for the Pico Pi....MicroPython...yadi yadi, to which I just just kinda glazed over......aka
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swguest
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#295
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Re: Has anyone fully decoded the X9000 memory mapping?
One of my other projects back in the day was "thelinkbox", which
is/was a PC based repeater controller and Viop thingy. I played with
software based PL and touch tone decoding at lot and while I got
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Skip Hansen
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#294
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Re: Has anyone fully decoded the X9000 memory mapping?
It's a mash up of headers and sockets soldered together. Basically it just
raises the chip up above things and has angled pins (bent two row headers)
that connect to the top socket pins and the outer
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Casey Crane
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#293
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Re: Has anyone fully decoded the X9000 memory mapping?
Don't waste your life trying to do this with python. You want to do it
in C. The timing will be too inconsistent. A Pi is just a Lunix box.
HD63A03YP has 256 bytes RAM, no internal ROM.
De
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Dennis Boone
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#292
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Re: Has anyone fully decoded the X9000 memory mapping?
@ Casey,
So what's the skinny on the DIP socket extender you fab'd up?
My actual develpment ended at that point. I had enough mega code to test the config I was going to use, but I had speed concerns
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swguest
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#291
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Re: Has anyone fully decoded the X9000 memory mapping?
I am familiar with squirrels, shiny object and rabbit holes, That's a fair amount of the reason it's taken a decade to get back to this. Seems like getting distracted is my life's motto
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swguest
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#290
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Re: Has anyone fully decoded the X9000 memory mapping?
I'm not trying to distract from the goal here either but have been mulling
over other options. I was sitting here thinking what all we need it to do.
In reality to me, and maybe I'm wrong, but really
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Casey Crane
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#289
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Re: Has anyone fully decoded the X9000 memory mapping?
Seems like it might be useful, for example, in working out what i/o
devices are where, and how they work. Knowing the instruction address
for various things might help with disassembly of the
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Dennis Boone
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#288
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Re: Has anyone fully decoded the X9000 memory mapping?
I had better qualify this.....
If Skip finds a JMP or JSR in the FW he can redirect to a big enough chunk of unused memory, there is not telling what will come of it.
Gotta love all those shiny
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swguest
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#287
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