tag:blogger.com,1999:blog-7581307197111318645.post7761437371535799001..comments2023-05-27T08:59:22.970-07:00Comments on An Infinite Number of Cats on Keyboards: Parallax Propeller + COSMAC 1802: the Saga Continues...saundbyhttp://www.blogger.com/profile/05472603072142005189noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-7581307197111318645.post-16088247727340793292015-11-13T23:23:07.310-08:002015-11-13T23:23:07.310-08:00Did you give up on this project. I was looking for...Did you give up on this project. I was looking forward to more, and completion.<br /><br />For people who want to mess with a COSMAC Elf 1802-based system easily, they can play with my online simulator:<br /><br />http://www.donnelly-house.net/programming/cdp1802/simelf/Popperhttps://www.blogger.com/profile/08456303488174365321noreply@blogger.comtag:blogger.com,1999:blog-7581307197111318645.post-23067694447007368252012-12-02T11:06:33.081-08:002012-12-02T11:06:33.081-08:00Hello:
With a lot of microprocessers in our '...Hello:<br /><br />With a lot of microprocessers in our 'junk' boxes these days I am trying the same stuff with a Z80 that I have laying around. The propeller is great for this and I wonder if thier is other microprocessers out there that could benefit from such tinkerings.<br />jim Anonymoushttps://www.blogger.com/profile/14887324830650614366noreply@blogger.comtag:blogger.com,1999:blog-7581307197111318645.post-42296657466903736762012-09-14T20:43:31.768-07:002012-09-14T20:43:31.768-07:00I have been thinking along the same lines of doing...I have been thinking along the same lines of doing a Propeller with a 1802. Why not use one of the 16 PLL counters of the Propeller for the 1802 clock. Can you post your schematic?Trekkerhttps://www.blogger.com/profile/14428315981686124842noreply@blogger.comtag:blogger.com,1999:blog-7581307197111318645.post-13327841334673568172012-09-07T04:31:08.893-07:002012-09-07T04:31:08.893-07:00Mark, I have managed this in assembly. Cogs for c...Mark, I have managed this in assembly. Cogs for clock and managing a cycle in assembly, and the main one in spin to manage it all. The prop emulates ram, rom, ports, generates the clock, and provides i/o via the serial port. If you want the source code/general structure drop me a line: me@rogerblott.com.<br />Good luck,<br />Roger BlottAnonymoushttps://www.blogger.com/profile/18096266222315111893noreply@blogger.comtag:blogger.com,1999:blog-7581307197111318645.post-8382838767585351562012-08-16T16:12:39.458-07:002012-08-16T16:12:39.458-07:00Hi there! I just got here because of a retweet by ...Hi there! I just got here because of a retweet by @Parallaxinc of one of your tweets about this. Looks like you and I are working on very similar projects, except totally different because I'm using a 6502 instead of an 1802 :-)<br /><br />Spin is not going to help you much with high speed hardware control like in your project (and mine): you're going to have to throw in some Assembler.<br /><br />The main problem I have with Assembler and Spin is that you can't mix it on the same cog. That's why I'm in the process of switching to C as the main language (and SimpleIDE as the development tool) instead of Spin: that way, mundane tasks can still be written in a higher language but I can insert the Assembly loop in there as inline assembler.<br /><br />Anyway, if you need any help with the Assembly code, feel free to send me a DM on twitter or GooglePlus or something. Also feel free to use any of the code that I already have; it's on Github and licensed under MIT.<br /><br />My project is at http://www.propeddle.com.Anonymoushttps://www.blogger.com/profile/14655166318028587028noreply@blogger.com