Nice one mark
PI/Arduino Processor Emulator
- Thread starter andrewsm
- Start date
Here is the 6502 Adapter schematic guys. It is for a Mark 2 but if used on the Mark 1 then route it though the VRAM mod that was given earlier. Again this will be on the website and Sarj will sort it out on a board for those who dont want to solder it up.
Cheers and have a Happy new Year when it comes
PS dont connect 5V from 6502 to tester! Also do connect ground from 6502 to B.25 of tester and A.25 if you want to as well.
andrewsm2016-12-31 11:23:36
Thanks, Mark.
Im currently looking at using a CPLD to create a sort of universal adapter. Ive ordered some parts to have a mess around with and will make up a new pcb too for testing. If all goes to plan then the target cpu can be changed using jtag programming and changing some jumpers for power. This will also give us freesom to change or add any extra circuitry by reprogramming instead of fabbing a new pcb.
It could all end in disaster but will be worth it if it works out
Im currently looking at using a CPLD to create a sort of universal adapter. Ive ordered some parts to have a mess around with and will make up a new pcb too for testing. If all goes to plan then the target cpu can be changed using jtag programming and changing some jumpers for power. This will also give us freesom to change or add any extra circuitry by reprogramming instead of fabbing a new pcb.
It could all end in disaster but will be worth it if it works out
Sounds good Jon
Unfortunately not Mark
I've spent christmas writing an interactive app to demonstrate A* and Dijkstra searching of directed graphs and tilemaps.
I hope to get round to it sometime this coming year
I've spent christmas writing an interactive app to demonstrate A* and Dijkstra searching of directed graphs and tilemaps.
I hope to get round to it sometime this coming year
Need a little help please.
Trying to update my tester software, currently on 1.30, I have pasted the update.bash file into the home/pi/update folder but cannot get it to run as described on the website:
"
First thing you will need to do is download update.bash from the Git which is located on the git in the same place as it will need to be placed on your Pi.
/home/pi/update/update.bash
make sure you place this file on your pi in the same place, and then Right Click the file and select Properties. from there select the drop down option of execute to make it "anyone" Once you have done this you can then Double Click the update file and when prompted click open in Terminal.
"
When the file is clicked nothing happens. using right click, open with and choosing terminal does nothing either. If I open a terminal window in this folder how do i run the file directly?
Thanks.
smarty2017-01-07 13:08:42
Trying to update my tester software, currently on 1.30, I have pasted the update.bash file into the home/pi/update folder but cannot get it to run as described on the website:
"
First thing you will need to do is download update.bash from the Git which is located on the git in the same place as it will need to be placed on your Pi.
/home/pi/update/update.bash
make sure you place this file on your pi in the same place, and then Right Click the file and select Properties. from there select the drop down option of execute to make it "anyone" Once you have done this you can then Double Click the update file and when prompted click open in Terminal.
"
When the file is clicked nothing happens. using right click, open with and choosing terminal does nothing either. If I open a terminal window in this folder how do i run the file directly?
Thanks.
smarty2017-01-07 13:08:42
I would personally download the .gz update file, and copy it to the Pi and unpack it there, then move the files/folders to the right location
Before you do anything I would strongly suggest you make a backup of the SD card prior to making any changes in case you break it.
There is a backup program on the Pi to allow you to easily do this
Before you do anything I would strongly suggest you make a backup of the SD card prior to making any changes in case you break it.
There is a backup program on the Pi to allow you to easily do this
Another update for everybody.
Ive been pretty busy with work just lately but still found time to fiddle with another thing on my to do list.
My tester has now successfully programmed a 2716, 2732 and a 2764 eprom using a small hardware addition. I have also added lots more into the tester code so a new update will be released soon. There is a bug which I am sorting just now so hopefully add this into the release.
Got stacks of boards to look at for some guys now so looks like Im going to be busy lol
Ive been pretty busy with work just lately but still found time to fiddle with another thing on my to do list.
My tester has now successfully programmed a 2716, 2732 and a 2764 eprom using a small hardware addition. I have also added lots more into the tester code so a new update will be released soon. There is a bug which I am sorting just now so hopefully add this into the release.
Got stacks of boards to look at for some guys now so looks like Im going to be busy lol
Very sorry to those people who might be waiting on me for the Z80 pcb.
I got sidetracked with the cpld test pcb and im currently knee deep in something thats gonna take a little while.
It will be finished but may take a bit longer than i originally wanted.
Sorry again. You can blame muddy!
I got sidetracked with the cpld test pcb and im currently knee deep in something thats gonna take a little while.
It will be finished but may take a bit longer than i originally wanted.
Sorry again. You can blame muddy!
No Problem, very busy myself
Just successfully programmed a 2708 on my tester. Working on the design now but will handle eproms from 2704 to 27512 plus allows ram testing of most static chips such as 6116 etc. Probably possible to read and program proms too but not looked at that yet.
On top of that Im working though some boards I have received to fix plus soon be checking out the Z80 emulator design. Half works just got the rest to sort
I have released new software for anyone that wants it. Again on website and from me direct. Its for the Mark 2 but will have the Mark 1 code soon. Also a few bugs fixed as been informed of a nasty addressing issue.
Just finished working on a few more improvements to the code. Now has eprom support built in plus a new diagnostic check which looks deeply at the address and data pins plus checks for clock signals. Also recoded the main routines that handle read/write so huge speed improvements are gained. Also added a command to dump a BIN file direct to memory or screen ram. So far all on Mark 2 but will shortly release the Mark 1 code.
Keep you posted.
On top of that Im working though some boards I have received to fix plus soon be checking out the Z80 emulator design. Half works just got the rest to sort
I have released new software for anyone that wants it. Again on website and from me direct. Its for the Mark 2 but will have the Mark 1 code soon. Also a few bugs fixed as been informed of a nasty addressing issue.
Just finished working on a few more improvements to the code. Now has eprom support built in plus a new diagnostic check which looks deeply at the address and data pins plus checks for clock signals. Also recoded the main routines that handle read/write so huge speed improvements are gained. Also added a command to dump a BIN file direct to memory or screen ram. So far all on Mark 2 but will shortly release the Mark 1 code.
Keep you posted.
Nice update mark.
Smarty gave me a quick demo/overview of his unit at the weekend. What a wonderful project! The in-circuit logic testing looks great.
If it gets to the stage where it helps me diagnose some of my 68k based boards, I will definitely be purchasing one.
If it gets to the stage where it helps me diagnose some of my 68k based boards, I will definitely be purchasing one.
Thats a processor thats deff on the cards, just when I find time and figure out how to do it lol
Thanks for the comments, appreciated as it shows me im doing something right for a change
Ive just release new code for anybody that wants it. New arduino code for both Mark 1 and Mark 2 plus new tester code. Lots of bugs sorted. The fast stuff has been held back for time being as still a little unstable.
Get in touch if you want it.
BTW My tester has made it across the big pond soon. Ones heading to USA tomorrow
andrewsm2017-01-25 17:42:30
Thanks for the comments, appreciated as it shows me im doing something right for a change
Ive just release new code for anybody that wants it. New arduino code for both Mark 1 and Mark 2 plus new tester code. Lots of bugs sorted. The fast stuff has been held back for time being as still a little unstable.
Get in touch if you want it.
BTW My tester has made it across the big pond soon. Ones heading to USA tomorrow
andrewsm2017-01-25 17:42:30
andrewsm said:
that's because your awesome
im about to go self employed as ive had no work for 2 month over xmas etc but if i had the cash i would have one in a heart beat.
love the men in a shed stuff and this really take's the biscuit.
keep up the good work my friend. fanfookintastic