Matej Posted February 17, 2021 Share Posted February 17, 2021 There is new 4usd Rpi Pico and its amazing for emulation: BBC: NES: What about ATARI 800 emulator or TURBOCARTRIDGE as Atmel Tomek8: https://youtu.be/iW_6zF1TMP0 https://youtu.be/3Uqtxvnk8f0 https://youtu.be/udMW9aeF-sk https://youtu.be/iW_6zF1TMP0 1 Quote Link to comment Share on other sites More sharing options...
TGB1718 Posted February 18, 2021 Share Posted February 18, 2021 Quote Link to comment Share on other sites More sharing options...
ivop Posted February 18, 2021 Share Posted February 18, 2021 Yes, just like the Zero. Install Raspbian. apt-get install atari800, and you're good to go! Or install RetroPie. Quote Link to comment Share on other sites More sharing options...
gozar Posted February 19, 2021 Share Posted February 19, 2021 On 2/18/2021 at 12:24 PM, ivop said: Yes, just like the Zero. Install Raspbian. apt-get install atari800, and you're good to go! Or install RetroPie. The Pico is a microcontroller, there is no Raspbian or apt-get. ? Quote Link to comment Share on other sites More sharing options...
Wrathchild Posted February 19, 2021 Share Posted February 19, 2021 On 2/17/2021 at 8:07 PM, Matej said: TURBOCARTRIDGE as Atmel Tomek8 The UNO Cart can do such things 1 Quote Link to comment Share on other sites More sharing options...
ivop Posted February 19, 2021 Share Posted February 19, 2021 2 hours ago, gozar said: The Pico is a microcontroller, there is no Raspbian or apt-get. ? Yeah, sorry. I thought the Pico was a smaller Zero for a while, but I see it's a different beast. Quote Link to comment Share on other sites More sharing options...
777ismyname Posted February 20, 2021 Share Posted February 20, 2021 12 hours ago, Wrathchild said: The UNO Cart can do such things The demos on your YouTube channel using the UnoCart as an accelerator of sorts is amazing. It buy another UnoCart to use for that purpose...if I knew how to utilize it Quote Link to comment Share on other sites More sharing options...
Wrathchild Posted February 20, 2021 Share Posted February 20, 2021 (edited) I mod'd by board to use pins rather than the receptacles that it normally came with, but so long as you can knock up a cable to attach to them, re-programming via an ST-LINK USB dongle or a cheap dev-kit board, e.g. NUCLEO-F411RE I have seen there is also this on Ebay from Slovakia so wonder if the power and 2 lines on this is enough for an external programmer, is the manufacturer on Atariage (seller=laco0042)? So in the same way people have added an adapter to the AVG Cart board for the SIO, the same could be done here for a re-programming cable. (I like too that its a full SD, not micro) Regarding the Pico, it runs as 133MHz which is not enough for the bus-sniffing (stm32f407 runs at 168MHz and over-clockable higher than that) Edited February 20, 2021 by Wrathchild added example dev-board 1 Quote Link to comment Share on other sites More sharing options...
TGB1718 Posted February 20, 2021 Share Posted February 20, 2021 2 hours ago, Wrathchild said: Regarding the Pico, it runs as 133MHz which is not enough for the bus-sniffing (stm32f407 runs at 168MHz and over-clockable higher than that) I'm pretty sure the document I read said the Pico can be over clocked too, not sure to what, but I'm sure someone will do it and let us know. Quote Link to comment Share on other sites More sharing options...
Wrathchild Posted February 20, 2021 Share Posted February 20, 2021 Yes, normally it 48MHz but clockable to 133Mhz Quote Link to comment Share on other sites More sharing options...
HiassofT Posted February 20, 2021 Share Posted February 20, 2021 6 hours ago, Wrathchild said: Regarding the Pico, it runs as 133MHz which is not enough for the bus-sniffing (stm32f407 runs at 168MHz and over-clockable higher than that) Instead of bus-sniffing in software you should be able to offload that to the programmable I/O (PIO) state machines - a really nice feature! so long, Hias 1 Quote Link to comment Share on other sites More sharing options...
Wrathchild Posted February 20, 2021 Share Posted February 20, 2021 Does look nice, getting my brain to think that way is akin to the effects of drinking a Pan Galactic Gargle Blaster though Also a side effect utilised by the bus-sniffing is that it doesn't respond when the ARM is busy off doing other things and so generally the bus reads high as the A8 needs its answer the cycle's window. So having a FIFO approach could confuse things. But if someone can pull that off then we could have a cheap solution. Quote Link to comment Share on other sites More sharing options...
777ismyname Posted February 20, 2021 Share Posted February 20, 2021 ...evidently the PICO has lots of overclocking headroom. The guys at the Raspberry Pi forums are saying it will hit 436Mhz ? Thank you for the info on how to prepare the UnoCart board for low cost programming The biggest issue for me is that I have no clue how to interact with the accelerator version of the UnoCart. I understand where in memory regular carts are mapped, TRIG3, etc., but I wouldn’t what to do from there. Quote Link to comment Share on other sites More sharing options...
Wrathchild Posted February 20, 2021 Share Posted February 20, 2021 General principles can be found on github, my fork of Robin's original work broke the code out into more discrete areas and so easier to peruse https://github.com/Wrathchild70/UnoCart/tree/firmware-split/source/STM32firmware/AtariCart/src Quote Link to comment Share on other sites More sharing options...
E474 Posted February 27, 2021 Share Posted February 27, 2021 What's the thinking on using the round hole connectors? All my connector cables are the square (DuPont (?)) type, and I either have to unsolder the shipped connectors and put pins in like @Wrathchildhas, solder together some sort of round pin to square pin bridge, or track down some cables that have round pins at one end that I can use with an ST-link USB dongle? Am I missing an easy way to do this? Quote Link to comment Share on other sites More sharing options...
Ropgar77 Posted April 1, 2021 Share Posted April 1, 2021 I've put together code for a NES emulator for Raspberry Pi Pico as well. In my project it can run several ROMs using Mappers 0, 1, 2, 3, 4 and 7 (90% of the games). It can do 60 frames per second on VGA and emulates APU and PPP perfectly well. It uses a PS/2 Keyboard as controller (I have no NES controller here with me). Sound is very impressive and there no glitches on video and backgound game music. Is it of interest of this community to have an Atari 800/5200 emulated on this board as well? I'm pretty sure I could get it done in a couple of months or so.. It's very impressive for such a small ARM Cortex M0+ microcontroller. Video of Castlevania demonstration can be foud at 1 Quote Link to comment Share on other sites More sharing options...
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