Hi guys,
I'm using a Rockwell 65c02, or so it seems according to its logo. I bought it on Ebay so who knowns.. Just ordered what seems a WD.
I'm powering it, as well as the arduino, from the USB.
No, I'm not using the capacitor. Can you please suggest me the capacitor to use ?
Before welding it ...
Search found 7 matches
- Mon Mar 02, 2015 9:08 am
- Forum: Hardware
- Topic: Use of RDY pin for a VERY slow device
- Replies: 12
- Views: 2012
- Sun Mar 01, 2015 7:47 pm
- Forum: Hardware
- Topic: 28Cxxx EEPROM Programmer
- Replies: 268
- Views: 99092
Re: 28Cxxx EEPROM Programmer
Nice project !
Have you considered using a Mega ? In ebay you can have it for almost the price of the nano, or less if you want the genuine nano. It's price has dropped down as it is used to control 3d printers.
Have you considered using a Mega ? In ebay you can have it for almost the price of the nano, or less if you want the genuine nano. It's price has dropped down as it is used to control 3d printers.
- Sun Mar 01, 2015 7:42 pm
- Forum: Hardware
- Topic: Use of RDY pin for a VERY slow device
- Replies: 12
- Views: 2012
Re: Use of RDY pin for a VERY slow device
Here is my setup as it is now. Yesterday I was having erratic problems so I decided to weld the wires between the Arduino and the Arduino Mega. At the right hand side, the data and address busses. The mega has more than enough IO ports to control all the pins of the 6502 plus a display ...
- Sat Feb 28, 2015 11:12 am
- Forum: Hardware
- Topic: Use of RDY pin for a VERY slow device
- Replies: 12
- Views: 2012
Re: Use of RDY pin for a VERY slow device
Hi guys !!!
It seems it is working, thanks a lot !!!!
I ignored RDY pin and generate clock signals not at constant frequency but when Arduino is ready to do the next operation.
I'm not sure it is correct but it runs a loop with INX, STX in zero page and JMP. Can you see this screen capture ?
https ...
It seems it is working, thanks a lot !!!!
I ignored RDY pin and generate clock signals not at constant frequency but when Arduino is ready to do the next operation.
I'm not sure it is correct but it runs a loop with INX, STX in zero page and JMP. Can you see this screen capture ?
https ...
- Fri Feb 27, 2015 10:10 pm
- Forum: Hardware
- Topic: Use of RDY pin for a VERY slow device
- Replies: 12
- Views: 2012
Re: Use of RDY pin for a VERY slow device
Yes, I'm generating clock in (pin 37) with the Arduino.
But my 65C02 doesn't seem to be the WDC. I just tried setting LOW or HIGH pin 36 (BE in the WDC) and it doesn't make any difference, so I guess it isn't connected and therefore it is not the WDC.
What is a '816 ?
But my 65C02 doesn't seem to be the WDC. I just tried setting LOW or HIGH pin 36 (BE in the WDC) and it doesn't make any difference, so I guess it isn't connected and therefore it is not the WDC.
What is a '816 ?
- Fri Feb 27, 2015 7:24 pm
- Forum: Hardware
- Topic: Use of RDY pin for a VERY slow device
- Replies: 12
- Views: 2012
Use of RDY pin for a VERY slow device
Hi,
Just for fun, I'm trying to program a micro controller (arduino MEGA) to emulate the RAM/ROM memory that a 65C02 will need to run. The micro controller is connected to all pins of the 6502 except power, emulating RAM and ROM where needed.
My problem is that the microcontroller is way too slow ...
Just for fun, I'm trying to program a micro controller (arduino MEGA) to emulate the RAM/ROM memory that a 65C02 will need to run. The micro controller is connected to all pins of the 6502 except power, emulating RAM and ROM where needed.
My problem is that the microcontroller is way too slow ...
- Fri Dec 20, 2013 9:16 am
- Forum: Emulation and Simulation
- Topic: My Arduino-Based 6502 Simulation/Emulation...thing?
- Replies: 59
- Views: 12891
Re: My Arduino-Based 6502 Simulation/Emulation...thing?
Hi !
I'm new in this forum; actually I have just registered to be able to post here.
I'm becoming more and more interested about this project, I was wondering how much memory is needed by the emulator itself.
Would it be possible to run it with an Arduino Mega, without the memory expansion ?
My ...
I'm new in this forum; actually I have just registered to be able to post here.
I'm becoming more and more interested about this project, I was wondering how much memory is needed by the emulator itself.
Would it be possible to run it with an Arduino Mega, without the memory expansion ?
My ...