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Hello there o/ I bring to your attention my little project "Astarta-ESP32" for Atari XE/XL. About project Astarta-ESP32 is a hardware emulator of some devices for ATARI 8bit: four independent disk drives with an opportunity read/write (D1-D4); tape recorder emulator with the ability to (only) read at standard speed; real time clock (RTC) via APE TIME protocol (supported by SpartaDOS). This implementation is the second version of the project and is based on the ESP-WROOM-32 microcontroller. The first version was implemented based on the Arduino DUE board. In addition to the ESP32 board itself, the ST7735 display, an SD card module, four buttons (for navigation), a pair of resistors for pairing 3.3 and 5 volts, and, of course, a SIO connector for connecting to an Atari computer are used. In addition to emulating Atari interfacing devices, the ESP32 can: connect to a dedicated WiFi hotspot with a password; synchronize the internal clock with an NTP server on the Internet; provide real-time access to the SD card through the implementation of an FTP server. The FTP server allows you to upload, download, rename, delete both files and directories. There are some restrictions when using ftp. Since, as it turned out, there is no single ftp standard for displaying a list of files, it is likely that some ftp clients may not correctly display a list of files. For example, Total Commander works correctly, creates and deletes files, and displays the correct creation date. There is also a restriction on the characters used, only ASCII is supported, however there are no restrictions on the use of spaces and long file names, the main thing is that the SD card is formatted in FAT32 format. At the moment, several disk image formats are supported: ATR, XFD, partially PRO format (2 of 5 types of protection), as well as XEX pseudo-format (during mounting, a micro-floppy disk is created to which this executable file is “pasted”). There are also plans to support the ATX, DCM, SCP formats, but so far these are just blanks (dummy) for the future. Files in the standard CAS format are supported for loading cassettes. Now the project is at the pre-alpha stage. This means that the product is not finished and everything is not even in test mode, but rather at the stage of creative search for solutions. The code may not be optimized, and there may be errors in the work. But in any case, you can already build it yourself, take part in testing and help make this project better. Construct As mentioned above, to assemble the construction, you will need the ESP-WROOM-32 board. Perhaps other versions of the boards are also suitable, the main thing is that they are not simplified (with a lesser number of pins). Otherwise, you will have to make changes to the code yourself and reassign the numbers of connected pins. To work with an SD card, standard SPI pins are used: IO23 - vMOSI, IO19 - vMISO, IO5 - vCS, IO18 - vSCK, and, accordingly, ground and power. My adapter uses a 5 to 3.3v converter, so it is connected to the 5v pin. If your adapter does not have such a converter, you should connect the output to 3.3v, otherwise it will lead to damage to the devices. And to connect the display, a second SPI (hSPI) is used with the corresponding pins: IO13 - hMOSI, IO15 - hCS, IO4 - hDC, IO14 - hCLK, plus additional signals: IO2 - Reset and IO32 - LED (display backlight). Also, for the display to work, you must connect the ground and power 3.3v. Interaction with Atari SIO occurs through the second communication port (RX2/TX2). Zero (RX0 / TX0) is used to interact with the PC and upload firmware to the ESP32. If your ESP32 board has only two ports, then you will have to reconnect the corresponding pins and make changes to the code. For ATARI SIO, the 3.3v level is enough, so we can directly connect the DATA IN signal to IO17[TX2], the COMMAND signal to GPIO8[CTS2] without any problems. But for ESP32, the level of 5v is critical, so it must be limited. To do this, we will pass the DATA OUT signal through a block of resistors (values of 1 and 2 kOm) between IO16[RX2] and ground. To navigate through the menu sections, four buttons are used, which are connected to the corresponding signals: IO33 - Back (Cancel), IO25 - Up, IO26 - Down, IO27 - Select. As shown by a little experience of use, such navigation leaves much to be desired. In large lists, you have to press the same button (up/down) many times to find the desired file. Therefore, there are ideas to try using a micro-joystick or even an encoder. You can find more detailed build instructions on the project's github page. Here I will give just a couple more photos of the screen device: I also periodically publish various materials on the project on twitter, where you can see additional photos and videos of the device.
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hello! Got 3 questions: 1. How fast is SIO? 2. How do I load a sector? 3. How do I save a sector? (I plan to add saving to C&A.) Thanks!
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Hello everyone: Today I got this in the mail, its an ESP32 Wifi device, and since my SIO2SD device is broken I was thinking of hooking up the SIO cable to the 25 pin connector somehow, this is a picture of the ESP32 Wifi device, is it possible to get connections going with Bobterm on the Atari 800xl and this device or do I need a serial adapter of some sort? Here is the Wifi decive in a pic:
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I'm going over the instructions here http://sio2sd.gucio.pl/wiki/HighSpeed_en except I have Atari 800. It looks like C184 and C185 should be removed, so I think that's clear. From this it looks like there already is a 4.7K resistor from 5V to Data Out on the 800 though? I think maybe I don't need this. Has anyone done this?
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So I pulled my 800XL and gear from storage. It'll boot up to READY prompt, play a cartridge game, and pass all self tests. However, I'm unable to use any of my peripherals (2x 810 drives - one Happy, 1010 recorder, and 1025 printer). Any help isolating the problem is greatly appreciated. Here's what I've tried so far... - CSAVE: No apparent issues trying to save "hello world" program to cassette. Beeps and starts spinning while recording. Back to READY prompt and recorder stops when done. - CLOAD: Error 138. Apparently didn't record. RETURN key properly starts recorder playing but no noises. - LIST/LOAD D1 & D2: Error 130. Nothing. Neither drive will spin when turning computer on. OPTION-on goes straight to test screen. Drive switches are set to 1 & 2, and have tried swapping them, plus each individually as D1. Note: Drives will power up with momentary busy light when computer is off. - LIST "P:": Error 138. Nothing. Printer head resets position when turning on computer. I've tried all peripherals daisy chained and individually, swapping out the IO cables with same results. I removed all socket chips from the motherboard, cleaned everything and no difference. Need a new POKEY chip? Anything else it could be? Thanks for the help guys!
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Sven of ABBUC printed his first sio socket with his 3D printer. http://www.abbuc.de/...&t=7221#p56913
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I have created another video as I love doing doing this, this one for Atari Max, who is next on my free video creation kick? Shall we promote Atari BBS's in my next video, I need some actual screens from the BBSs that are up and running , maybe an AtariAge video would be appropriate , how about it admin? I can do anything in a video, as you can see... Russ AtariMax Video
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Hi, I have written a short assembler routine that allows BASIC programs to use SIO. The SIO Device Control Block at $300 needs to be set up correctly in BASIC, then the assembler routine called with a USR statement. I've made a GitHub repo for it at https://github.com/e474/USRSIO - this also includes an ATR with the assembled code, and a short BASIC program showing how to load and use the assembler. This is the first git repo I have worked with/published, so I am not 100% sure I have done so correctly, though I haven't found any bugs with it yet. Please let me know if you have any feedback. The code was written with the help of WUDSN and ATASM on Linux. Hope this helps anyone interested in this subject.
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Logic level shifter <-> additional SIO pins to connect?
E474 posted a topic in Atari 8-Bit Computers
Hi, Pretty much all of the logic level shifters I have seen can shift 4 signals, and also connect Ground and +5volts (so 6 connections in total). The diagrams for the designs I have seen also connect Data In, Data Out and Command, but that leaves 1 signal unused. Has any made a mod/interface which connects up an additional SIO connector pin, e.g. Audio In, etc.? -
Hi All, I'd struggled to find a good or decent cable (not to stiff, and not too thin copper conductors) for a home made SIO cable. I had 3d printed a couple of SIO connectors and I also have a couple of PCBs for a poorman SIO version, but no luck to find a cable with 13 conductors (I don't need 100m) Do you recommend something you guys have used before?.. obviously good price (for someone in US). Thanks a lot
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I've been having a weird SIO problem that I'm hoping someone might have some insight into. The symptom of the problem is this. The Atari will attempt to read a sector (or some other SIO operation). There is about a 70% chance that it will succeed, but the other 30% it will sit for the timeout period (a few seconds) and then retry the sector read. I've seen a sector fail to read 3-4 times in a row before it succeeds and then a bunch will succeed in a row. The aspeqt log looks like this: [Disk 1] Get status. [Disk 1] Read sector 1 (128 bytes). [Disk 1] Read sector 2 (128 bytes). [Disk 1] Read sector 3 (128 bytes). [Disk 1] Read sector 4 (128 bytes). [Disk 1] Read sector 5 (128 bytes). [Disk 1] Read sector 6 (128 bytes). [Disk 1] Read sector 7 (128 bytes). [Disk 1] Read sector 8 (128 bytes). [Disk 1] Read sector 9 (128 bytes). [Disk 1] Read sector 10 (128 bytes). [Disk 1] Read sector 11 (128 bytes). [Disk 1] Read sector 12 (128 bytes). [Disk 1] Read sector 13 (128 bytes). [Disk 1] Read sector 14 (128 bytes). <-- this is the failed command [Disk 1] Read sector 14 (128 bytes). [Disk 1] Read sector 15 (128 bytes). ...etc... So aspeqt isn't noticing a problem; rather the system just isn't seeing the sector come in for some reason. Here's the history of the problem. It all started when I dropped in a PAL ANTIC for playing some PAL games. At the time I figured the occasional glitch might be due to timing differences so I didn't think anything of it. After a few weeks of not using my system, I received and installed one of mega-hz's stereo boards (in the process I moved my OS ROM IC to the BASIC spot and removed BASIC, because in a 600XL the board doesn't quite fit). I booted up and everything seemed to work great on the first try, *except* that this SIO problem was still there and in fact was quite a bit worse than it was before! Figuring I had banjaxed something (SIO = POKEY = seems like it might have been related to the stereo board install), I tried reverting the upgrade and there was no change - the SIO problem was definitely still there. I swapped my ANTIC out for the original NTSC one again hoping that this would resolve the issue but it did not. I checked and rechecked the board for broken traces along every path I could find, even tried different POKEYs to no avail. Then I made a quite interesting discovery. If I boot in Aspeqt using the "boot XEX" feature, it consistently works fine (after it loads the initial few sectors containing the boot loader). This is interesting to me because the OS loads sectors at 19200 bps, but the Aspeqt XEX booter uses 57600 bps (I believe) to transmit the XEX data. So maybe the problem is actually in the OS ROM somehow, though I don't see how since it passes self-test which I think does a checksum test. My other thought is that maybe IRQs are not being handled right somehow since (I think) the OS SIO routine is IRQ-driven, whereas high-speed boot loaders aren't? Anyone have any thoughts about what I should try next? I was thinking about writing a test program pair for the atari and linux which transmits a data stream and checks for problems, and maybe just swapping ICs (SALLY gets a little warm but I think that's her normal behavior).
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I have been reading about all of the options for SIO and Cartridges. I have an SIO2PC-USB and it is great, but I have to switch back and forth between the Atari and my PC to change disks when needed. The carts have their own menus. I just had a thought. Could a cart be made with a cable connection to the SIO port so the combination could handle all file types and be totally controlled by the Atari? Pressing a button on the cart would bring up the menu to mount another file or load a .car file into the cart. Then exit back to your program to load the file or reset to run the .car. So, totally weird and not possible?
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Hi Everyone, I'm ~30 years late to the party but I finally bought my first Atari computer this week, the 800XL!! As a complete beginner to Atari and this whole scene I'm excited but also a little confused and would love some advice. The computer came with a 1010 Cassette deck (I've replaced the belts) and about 8 games on cassette - the computer and tape deck work fine but unfortunately none of the games load, I keep getting BOOT ERROR - so I haven't been been able to do anything on it yet The main purpose of this is for games, programming (basic and assembly) and the general fun of discovering what this thing can do. I have seen many great looking devices such as: sio2pc, sio2bt, sio2sd, Ultimate 1MB, Side2, Pokey Stereo Sound Where do I start, what should I get? importantly, who should I get these things from and what should I avoid? Please tell me which devices you have yourself, what you found the most and least useful and your recommendations. Thanks to everyone in advance - hopefully this post can help future noobs like me. All the best - I look forward to some good advice!
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The documentation for the 65C816 XL/XE OS shows a high-speed bit in the CIO table but I don't get whether it can be set up to support high-speed SIO like the Hiassoft patch, MyBios, etc., to allow faster booting and disk access with a SIO2SD when using regular DOS, LOAD, SAVE, etc. commands. Any ideas?
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I had a thought about the 850. It's a simple bit-banger, so what are the limits of the hardware? Is it possible to kick up the baud rate between the 850 and the computer to 38,400? Even if this involved changing to a faster crystal, it would still be a great thing. Ideas, Thoughts...?
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When I turn on my machine now, I get a "bizzzz" sound about once every 3 seconds, and I assume, a blue screen (I say assume because the no-signal screen is blue on my TV as well) Other than blown capacitors, does anyone have suggestions on troubleshooting?
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There is a new hardware for A8: SIO_FIFO. This device allows data transmission with up to 127kbps speed. Here is the movie with copying disk using this hardware, "US SECTOR COPIER 4" by E.Reuss and AspeQT emulator. SDX, IDE+ loader etc. also working at this baud rate. Form of device is small PCB between POKEY and mainboard. No cables, no solder (if there is a socket for POKEY on the MB). The device is yet in testing phase but will be available soon.
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While archiving my collection it hit me: That Banana Pi I use at the bi monthly Retro meeting here in the Netherlands can also make use of the trick that The Montezuma used to connect a Raspberry Pi as a disk drive for the Atari. Up until now I dragged along SIO2PC device(s). With the Raspberry Pi craze, several parties also wanted a piece of the pie. LeMaker came up with the Banana Pi, also a SoC, but with a little beefier specs, like gigabit ethernet, more RAM and a power switch. Another thing the Banana Pi has more of than the Raspberry Pi is four(!) UART interfaces. So, plenty of ways to connect to the SIO port. I picked the UART1, located on J12, as on the same row there is 3.3V and GND available, making it very easy to use a 4 pin connector I had lying around (an old CD Rom sound cable). The PinOut of the Banana Pi, as you can see J12 consist of 2 rows with 4 GPIO pins, the top four (2,4,6, being 3.3V, RXD, TXD, GND: Details of all pins: I haven't created a nice graphic representation of the connections, but the text version looks like this: Connect Banana Pi J12 pins 2,4,6,8 to a level converter at its LV side. On the HV side of the level converter, connect a 1N581[789] Diode between the level converter and pin 3 of the SIO port. The connections should match below matrix: *** Atari TO Level Shifter SIO 3 (Data IN) - DIODE (1N581?) - HV1 * Via diode (for example 1N581[789]) direction from Atari to the level shifter * SIO 5 (Data OUT) - HV2 SIO 10 (+5V) - HV SIO 4 (GND) - GND *** Level Shifter TO Banana Pi LV1 - J12 Pin 6 (TxD) LV2 - J12 Pin 4 (RxD) LV - J12 Pin 2 (+3,3V) GND - J12 Pin 8 (GND) As you may notice, I did not connect SIO 7 (COMMAND), it should not be needed when you use sio2bsd or Respeqt. You can use the software attached to these posts on the Banana Pi as well. Depending on the linux distribution you use, it could be that your UART is connected to something other than ttyS3, to be sure, put an ATR on the SD card and use the following script to check 1. whether your cable works, 2. what terminal the J12 UART is connected to: ### Note: this runs as user root. If you are not running as root user, run 'sudo su -' first. for DEV in {0..3}; do echo -e "\nTesting connection on ttyS${DEV}\n\n" sio2bsd -s /dev/ttyS${DEV} -f /root/atari/disks/demo/numen.atr done The output should be something like: Testing connection on ttyS0 D1: 769 sectors, 196480 bytes total, mounted on /root/atari/disks/demo/numen.atr PERCOM: trk 1, step 3, spt 769, heads 1, bps 256, flags 04 (SMALL-MFM-5.25INCH) PCLink directory filter allows lower case names Serial port: /dev/ttyS0 POKEY quartz 1781618.500000 Hz and HS Index 0 constant 7.186100 is assumed Default speed: HSINDEX=40 (19200 bits/sec.) Default turbo: HSINDEX=0 (123963 bits/sec.) User selected: HSINDEX=0 (123963 bits/sec.) Next, power on the Atari connected to the Banana Pi. If your cable works and the script arrived at the correct terminal, you should see something like: 0 -> 'S': $31, $53, $0000 ($84) ... 3 -> 'R': $31, $52, $0003 ($86) If not, on the Banana Pi terminal, press CTRL+C and reset the atari from the Self Test screen (at the READY prompt, type 'BYE' and at the green screen press RESET). If your machine doesn't boot for the selected floppy, check the connections between the Pi and the Atari, verify if the floppy file on the Banana Pi exists and can be accessed (sio2bsd will display an error if it can't open the .atr file). If you want to be really fancy, create a second cable and connect it to another UART and use the banana pi as a terminal for bbs access at the same time. Hope that you too can put that Banana Pi to good use now.
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From the album: Schematics
MultiDash hardware (GameLink) by BeWeSoft, 2000 publication: ABBUC eV Sondermagazin nr. 27© BeWeSoft (Jiri Bernasek)
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From the album: AbeOwitz's Stuff
First set is status request. Second set asks for sector 1. -
From the album: AbeOwitz's Stuff
Errors in SIO protocol when latch is open during DIR command. -
From the album: AbeOwitz's Stuff
SIO First command on startup. It requests status from disk D1: -
Is it possible to have two or more Atari 8-bit computers share a chain of SIO devices, either simultaneously or in turn? I'm thinking of something like the Handic VIC-Switch for the Commodore 8-bit computers. I also asked this elsewhere and was pointed to the "Automatic Two Computer Interface" mentioned in the page linked below. It only supports two computers but, based on how it works, I think it could be expanded to support more. You will have to page down a few times to find it: http://www.mathyvannisselroy.nl/special%20stuff.htm At the end of that section, he mentions the A2RI. I'm not sure whether this is the same device but it seems to have the same functionality. This is in German: http://www.mathyvannisselroy.nl/2r_bauan.PDF Does anyone know whether anyone is selling such a device, or know of other options? Thanks. -
I'm trying to get OSX 10.9 (mavericks) to recognize the SIO2PC/10502PC Dual device. The kext file is present, but not loaded after boot. I can load it. However I cannot seem to get OSX to create the /dev/tty.usbserial so the AspeQt, SIO2OSX, or SIOServer programs can use it. If I look in System Profiler I see the device on one of the USB ports. Whats the trick to getting OSX to see the device correctly?
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I know this is such a stretch but would there be any possible way to connect my Atari XF551 floppy disk drive to my Windows XP computer? I'd like to transfer Atari files to and from my PC. I really can't get an internal 5 1/4 floppy drive for the XP because they are just too pricey.
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