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GARTHWILSON
PostPosted: Sun Sep 20, 2015 6:22 am 
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Joined: Fri Aug 30, 2002 1:09 am
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The dead bus cycles are predictable. In the data sheet (you might have to look at the '816 data sheet to get the info on what happens in every cycle of every addressing mode), it shows dead bus cycles as "IO" for "internal operation." In the case of reset, the 65c02 reset process that it carries out after the RST\ line comes up takes 7 clocks, and it fetches the reset vector in numbers 6 and 7.

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http://WilsonMinesCo.com/ lots of 6502 resources
The "second front page" is http://wilsonminesco.com/links.html .
What's an additional VIA among friends, anyhow?
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banedon
PostPosted: Sun Sep 20, 2015 9:09 am 
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Location: A missile silo somewhere under southern England
beholder wrote:
Hi Banedon.

I figured out why it wasn't working on 115200, the serial window has a dropdown option box where you choose which rate.
Didn't know I had to set the arduino project and the serial window :oops: ....


I find out things this way all the time with electronics :).
Sounds like you're doing well with your project. As Garth says; That boot sequence sounds normal.
I've just booted up my latest creation and it gave:
Code:
Address bus  Data bus  Notes
-----------  --------  -----
$FFFF        $EF       
$FA43        $00       
$01FF        $5F        access the stack/stack initialisation
$01FE        $AF        access the stack/stack initialisation
$01FD        $FD        access the stack/stack initialisation
$FFFC        $00        load LSB of reset vector
$FFFD        $F0        load MSB of reset vector
$F000                   jump to reset vector & start of my main code at $F000
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Michael
PostPosted: Sun Sep 20, 2015 3:01 pm 
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Joined: Wed Feb 13, 2013 1:38 pm
Posts: 589
Location: Michigan, USA
banedon wrote:
I find out things this way all the time with electronics :).
Sounds like you're doing well with your project. As Garth says; That boot sequence sounds normal.
I've just booted up my latest creation and it gave:
Code:
Address bus  Data bus  Notes
-----------  --------  -----
$FFFF        $EF       
$FA43        $00       
$01FF        $5F        access the stack/stack initialisation
$01FE        $AF        access the stack/stack initialisation
$01FD        $FD        access the stack/stack initialisation
$FFFC        $00        load LSB of reset vector
$FFFD        $F0        load MSB of reset vector
$F000                   jump to reset vector & start of my main code at $F000

Which CPU are you using? Rockwell 65C02, WDC 65C02, or WDC 65C816?
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banedon
PostPosted: Mon Sep 21, 2015 11:34 am 
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Joined: Sun Sep 08, 2013 10:24 am
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Location: A missile silo somewhere under southern England
Michael wrote:
banedon wrote:
I find out things this way all the time with electronics :).
Sounds like you're doing well with your project. As Garth says; That boot sequence sounds normal.
I've just booted up my latest creation and it gave:
Code:
Address bus  Data bus  Notes
-----------  --------  -----
$FFFF        $EF       
$FA43        $00       
$01FF        $5F        access the stack/stack initialisation
$01FE        $AF        access the stack/stack initialisation
$01FD        $FD        access the stack/stack initialisation
$FFFC        $00        load LSB of reset vector
$FFFD        $F0        load MSB of reset vector
$F000                   jump to reset vector & start of my main code at $F000

Which CPU are you using? Rockwell 65C02, WDC 65C02, or WDC 65C816?

Mine is a WDC W65C02S. I think beholder's one is, too.
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