tag:blogger.com,1999:blog-5261990937291835648.post613564169048603660..comments2023-12-13T12:21:47.178+02:00Comments on Peten Paja: ERIC-1: Homebrew ComputerAnonymoushttp://www.blogger.com/profile/16877976762002867526noreply@blogger.comBlogger13125tag:blogger.com,1999:blog-5261990937291835648.post-33807130949843258612017-06-08T07:53:31.014+03:002017-06-08T07:53:31.014+03:00i really like this information .
please visit here...i really like this information .<br />please visit here<br /><a href="http://gctrh.com" rel="nofollow">gclub จีคลับ</a><br /><a href="http://www.gtzng.com" rel="nofollow">gclub online</a><br /><a href="https://www.gclub-casino.com/baccarat/" rel="nofollow">baccarat</a><br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5261990937291835648.post-79560518800156654892014-12-13T23:28:15.067+02:002014-12-13T23:28:15.067+02:00Ah, the colour scheme mislead me to think it's...Ah, the colour scheme mislead me to think it's some old OrCAD - I used to use it many years ago (DOS version, only for schematics, with Tango for PCBs).<br /><br />These days I use DipTrace, I just can't stand Eagle's UI. And Altium is way too expensive :-/Przemyslaw Wegrzynhttps://www.blogger.com/profile/07203984764870134448noreply@blogger.comtag:blogger.com,1999:blog-5261990937291835648.post-86144332420335299472014-12-12T16:05:41.432+02:002014-12-12T16:05:41.432+02:00Sounds like a good plan then! The ATmega2560 runs ...Sounds like a good plan then! The ATmega2560 runs at 16 MHz, right? I think it should be possible to run the 6502 close to 1 MHz, the bottleneck being ram accesses. Have fun! Anonymoushttps://www.blogger.com/profile/16877976762002867526noreply@blogger.comtag:blogger.com,1999:blog-5261990937291835648.post-61001647519253340772014-12-12T15:57:47.526+02:002014-12-12T15:57:47.526+02:00The Arduino Mega 2560 has 8k RAM and 54 I/O pins, ...The Arduino Mega 2560 has 8k RAM and 54 I/O pins, easily enough to connect to every 6502 pin, I was thinking of making a crude 'shield' & letting the Mega 2560 generate the clock signal, supply ROM and RAM data as the 6502 needs it. <br /><br />I'm not worried about the speed or the RAM size as I'm not intending to do anything more serious than play about - IF I do it at all!<br /><br />There may be problems I haven't thought of. Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5261990937291835648.post-14654691107530607232014-12-12T13:36:09.771+02:002014-12-12T13:36:09.771+02:00I'm using free version of Eagle. It's pret...I'm using free version of Eagle. It's pretty good once you get used to its user interface.<br />Anonymoushttps://www.blogger.com/profile/16877976762002867526noreply@blogger.comtag:blogger.com,1999:blog-5261990937291835648.post-77963949784011929612014-12-12T13:35:16.858+02:002014-12-12T13:35:16.858+02:00Hi! Thanks for the comment! I also thought about u...Hi! Thanks for the comment! I also thought about using a microcontroller to emulate an SRAM but unfortunately the AVR chips are too slow to emulate a SRAM. Unless of course the 6502 is clocked very slow.<br />Anonymoushttps://www.blogger.com/profile/16877976762002867526noreply@blogger.comtag:blogger.com,1999:blog-5261990937291835648.post-12616704959163914032014-12-12T02:02:57.230+02:002014-12-12T02:02:57.230+02:00What's the tool that you use to draw the schem...What's the tool that you use to draw the schematics?Przemyslaw Wegrzynhttps://www.blogger.com/profile/07203984764870134448noreply@blogger.comtag:blogger.com,1999:blog-5261990937291835648.post-33898421750078288782014-12-12T01:16:18.180+02:002014-12-12T01:16:18.180+02:00I recognised the name as an Oric-1 reference but t...I recognised the name as an Oric-1 reference but then I have one in the loft.<br /><br />I've also got a 6502 chip and was considering using an external processor (maybe an Arduino) to generate clock and simulate/emulate I/O and memory for the 6502, so a bit simpler than yours as you're using real RAM.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5261990937291835648.post-43790464448664015302014-12-11T14:05:18.150+02:002014-12-11T14:05:18.150+02:00Thank you! Oops, there seems to be slight errors i...Thank you! Oops, there seems to be slight errors in the schematic. Some signals connecting to IC 1 have been misnamed. I've updated the schematic. Thank you for spotting this!<br />Anonymoushttps://www.blogger.com/profile/16877976762002867526noreply@blogger.comtag:blogger.com,1999:blog-5261990937291835648.post-6042656232258140742014-12-11T13:59:33.611+02:002014-12-11T13:59:33.611+02:00Ops... Now I got it, I saw the project upgrade. Re...Ops... Now I got it, I saw the project upgrade. Really nice job!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5261990937291835648.post-65042195814128625132014-12-11T13:51:28.442+02:002014-12-11T13:51:28.442+02:00Hello PETRI, first of all, congratulations, this i...Hello PETRI, first of all, congratulations, this is a very interesting project. I have some questions about the schematic: (1) Where comes from the signals /WE (IC5) and NS4 (IC1 - Phi0)? (2) The CLK signal is connected on R/W (IC1), how this work? Great job! Cheers.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5261990937291835648.post-39775114517412744712014-11-29T14:14:29.410+02:002014-11-29T14:14:29.410+02:00Oh, yeah, the Kim-1. Totally forgot it. I'm to...Oh, yeah, the Kim-1. Totally forgot it. I'm too young to really know it (I think it was made in the 70s?) but I've certainly heard about its existence.Anonymoushttps://www.blogger.com/profile/16877976762002867526noreply@blogger.comtag:blogger.com,1999:blog-5261990937291835648.post-25333646680106212482014-11-29T14:05:49.104+02:002014-11-29T14:05:49.104+02:00I thought the name was because of the Kim-1 comput...I thought the name was because of the Kim-1 computer. It was the first thing i thought when I saw the display.Anonymousnoreply@blogger.com