Kyle22 Posted March 22, 2018 Share Posted March 22, 2018 It would be great if it could use only the CIO registered R: Handler. The one listed in HATABS. Quote Link to comment Share on other sites More sharing options...
jeffpiep Posted April 15, 2018 Share Posted April 15, 2018 It would be great if it could use only the CIO registered R: Handler. The one listed in HATABS. Thomas Cherryhomes has said the same thing - he wants to use it with the PLATO cart. Quote Link to comment Share on other sites More sharing options...
Curt Vendel Posted April 16, 2018 Share Posted April 16, 2018 I've given Thom the source code to the 850 firmware and he is working on an 850 interface clone right now... Thomas Cherryhomes has said the same thing - he wants to use it with the PLATO cart. 5 Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted May 8, 2018 Share Posted May 8, 2018 Too bad, my polish isn´t good enough... http://www.atari.org.pl/forum/viewtopic.php?id=14246 Looks, like the idea implementing the R-Verter by software is / was the right direction... -> http://atariage.com/forums/topic/262518-sio-wifi-modem-with-esp8266/page-2?do=findComment&comment=3930160 Too bad, there is no sketch or binary on the polish website... Stefan Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted May 11, 2018 Share Posted May 11, 2018 "I just connected the boards' TX, RX and GND lines (so far) to SIO" Is your NodeMCU still working? My understanding is the ESP8266 module is not 5V tolerant. But the Atari SIO TX circuit is... . Well the NodeMcu Board are definitely 5V >tolerant<. I mean in the sense it isnt made for, but it will survive it. Both german "Commodore" communities use the NodeMcu that way. All Chips survived so far. BUT, don't mix it up with the 'single' ESP8266 Chips. Especially the 8pin ESP-01 Chips will die immediately. I got my NodeMcu working so far, (only/just) connected to Tx and Rx as already mentioned here in this thread. Ironically I 'only' succeeded in connecting with a Commodore BBS. I hat no chance to find a atari related BBS still running. Any help appreciated! My plan for this weekend is, to print out all the data sheets of the circuits used for the RVERTER. And to lable every single line, to backward engineer / understand the way the RVerter works. I'm convinced the simple boolean logic of a 74LS00 is easy to replace by the power of an 80MHz processor. Stefan Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted May 11, 2018 Share Posted May 11, 2018 By the way, who is the guy who developed Bobterm? Is he member of atariage? Stefan Quote Link to comment Share on other sites More sharing options...
Fox-1 / mnx Posted May 11, 2018 Share Posted May 11, 2018 Robert "Bob" Puff. Owner of CSS. http://www.nleaudio.com/css/ He left the Atari scene quite a while ago. 1 Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted May 12, 2018 Share Posted May 12, 2018 Thank you Fox-1, I gave it a try - wrote an e-mail, just asking him if Iḿ allowed to ask questions. Lets see. In the meantime, I study the data sheets and the two/three different schematics. Stefan Quote Link to comment Share on other sites More sharing options...
Lastic Posted May 18, 2018 Share Posted May 18, 2018 I've had good success with NodeMCU dev boards using Strikelink and Zimodem 3.0 firmwares (links below). Both firmwares work well. Both have telnet modes. Zimodem has the ability to answer. (EDIT - I haven't tested this aspect). I'm still playing at this. I didn't add RS232 level conversion. I just connected the boards' TX, RX and GND lines (so far) to SIO. Power is via USB Phone charger. I've been using the bobverter driver on the Atari but I'm not sure how to add RVerter logic. Since I don't have a real R: interface set up and the device just sits on the SIO bus I can't do disk I/O unless I'm using my internal MyIDE (with SDX 4.49c beta). Links DIY C64 Wifi Modem Zimodem 3.0 Out of curiosity and because of the cheap price I'v bought an ESP8266 also. I was wondering if you could elaborate on what your setup is and which bobverter driver you used. My ESP8266 is hooked up also to TX,RX,GND to my 130XE's SIO port and I have an UNOcart which can load BobTerm or Ice-T. Quote Link to comment Share on other sites More sharing options...
a8isa1 Posted May 18, 2018 Share Posted May 18, 2018 (edited) Out of curiosity and because of the cheap price I'v bought an ESP8266 also. I was wondering if you could elaborate on what your setup is and which bobverter driver you used. My ESP8266 is hooked up also to TX,RX,GND to my 130XE's SIO port and I have an UNOcart which can load BobTerm or Ice-T. I'm using an 800XL with RAMBO XL, internal MyIDE, SDX 4.49c beta (on an Atarimax 8mbit cart). I mostly use ICE-T, because of the 80 column support and the 19.2 kbits/sec speed. I'm not aware of more than one bobverter driver. I believe I once read that bob puff wrote a better driver than the original rverter driver. Don't know if it's true or even if I'm remembering that correctly but don't really have a reason to use the original rverter driver. Edited May 18, 2018 by a8isa1 2 Quote Link to comment Share on other sites More sharing options...
manterola Posted May 30, 2018 Share Posted May 30, 2018 (edited) Meanwhile we are waiting for the cool solution of emulating a 850 interface with esp8266, I got one of those cheap esp-01 versions with 5v adapter: https://goo.gl/Xouesu I tested it with bobterm and rverter (and just default AT firmware) and it worked great (I needed to set wifi setting, and serial comm. settings, of course). I just connected 5v, gnd, tx and rx using a breadboard Now I am getting a little project box and I plan to put it in the middle of a SIO cable (I don't want it to be end of line device). I will also add a little more sophisticated interface (which I just copied from the rverter interface schem.) to use the Motor signal, so the interface will be able to share the SIO bus and download files to floppies. I hope this is useful to anyone who is interested in alternatives to Lantronix solutions. Mauricio Edited May 30, 2018 by manterola 1 Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted May 31, 2018 Share Posted May 31, 2018 Dear Mauricio, that is the solution I was searching for. But it was to risky for me to try with my one AND ONLY Atari. So my expectation was right? The motor line is activated by the driver, each time the signals belong to the modem? And the way you did it allows you to daisychain other devices? Stefan Quote Link to comment Share on other sites More sharing options...
manterola Posted June 1, 2018 Share Posted June 1, 2018 (edited) Yes, that's how rverter driver works. If you have a cassette program recorder you can load bobterm or icet (first load rverter handler) then press play and the cassette will run (motor active). Then go, for example, to disk functions like disk directory in the terminal program, and when the Atari access the disk drive you will notice that the cassette stops for a second or two, and then keeps going. Edited June 1, 2018 by manterola Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted June 1, 2018 Share Posted June 1, 2018 Sir, you are my personal hero. I'LL build it. One last question : The diode in your drawing, What kind is it? I'm a bit confused because of the reverse direction? ( or am I totally wrong?) Stefan Quote Link to comment Share on other sites More sharing options...
manterola Posted June 1, 2018 Share Posted June 1, 2018 I just stole that part of the circuit from rverter interface, check these out for more detailed part list: http://ftp.pigwa.net/stuff/collections/nir_dary_cds/Hardware%20Projects/The%20RVerter%20SIO%20to%20RS232%20interface/rverter.html http://atari.a8maestro.com/info/8ball/images/rverter2.jpg http://ftp.pigwa.net/stuff/collections/nir_dary_cds/Hardware%20Projects/The%20RVerter%20SIO%20to%20RS232%20interface/rverter.html I am using a 1n4007 which is the one I could get from the my "junk box" but I plan to get a 1n4148 as the original design. The diode is in the right direction because the idea is to simulate an open collector device output (which does not "generate" current , it only "sinks" current to ground) Check this post: http://atariage.com/forums/topic/267963-sio2pc-usb-daisy-chained-to-1050-issues/?p=3811358 Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted June 1, 2018 Share Posted June 1, 2018 I just stole that part of the circuit from rverter interface, check these out for more detailed part list: http://ftp.pigwa.net/stuff/collections/nir_dary_cds/Hardware%20Projects/The%20RVerter%20SIO%20to%20RS232%20interface/rverter.html http://atari.a8maestro.com/info/8ball/images/rverter2.jpg http://ftp.pigwa.net/stuff/collections/nir_dary_cds/Hardware%20Projects/The%20RVerter%20SIO%20to%20RS232%20interface/rverter.html I am using a 1n4007 which is the one I could get from the my "junk box" but I plan to get a 1n4148 as the original design. The diode is in the right direction because the idea is to simulate an open collector device output (which does not "generate" current , it only "sinks" current to ground) Check this post: http://atariage.com/forums/topic/267963-sio2pc-usb-daisy-chained-to-1050-issues/?p=3811358 You may compare the drawings in your first and second link. Especially pin 2, respectively pin 3 (D in). Maybe you can understand, why I wasnt bold enough to try it by my own. Thank you for your explanation. I will build the interface you draw, and will excessively test it Thank you! Stefan Quote Link to comment Share on other sites More sharing options...
manterola Posted June 5, 2018 Share Posted June 5, 2018 Btw, there is an error. The capacitor should go b/w +5VDC and GND. Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted June 5, 2018 Share Posted June 5, 2018 Btw, there is an error. The capacitor should go b/w +5VDC and GND. Dear Mauricio, dear "board members" I appended a picture of a drawing. May I ask you to have a look at it? If you are confused, you are at the same level as me... I will mill the pcb...(even the routes) it´s the only option I have. (already did that a couple of times) It´s a double sided circuit board. Some pads are throughplated. The whole thing will be packed into a 3D printed case. What´s your opinion? Any mistakes? greets Stefan Quote Link to comment Share on other sites More sharing options...
Dropcheck Posted June 6, 2018 Share Posted June 6, 2018 Dear Mauricio, dear "board members" I appended a picture of a drawing. May I ask you to have a look at it? If you are confused, you are at the same level as me... I will mill the pcb...(even the routes) it´s the only option I have. (already did that a couple of times) It´s a double sided circuit board. Some pads are throughplated. The whole thing will be packed into a 3D printed case. What´s your opinion? Any mistakes? greets Stefan SioWifiPCB.gif Not sure what you are trying to do. Is it a SIO2Wifi adapter? If so you have no connection point for the ESP8266 Wifi module. And the second SIO connector is going to have the wrong signals on the pins for connecting any Atari device. You need to wire for a DB9/DB25 serial port instead of the output SIO connector. Or a SIO2wifi adapter with SIO pass through? See previous note about the wrong signals on the SIO connector for Atari devices. Here's an untested schematic and board design that might work better. Board size is reduced a little. 80mm x 60 mm Quote Link to comment Share on other sites More sharing options...
manterola Posted June 6, 2018 Share Posted June 6, 2018 It looks ok to me, except for the things already pointed out: connection for specific esp8266 used, and wrong Sio connections: it should be pin1 to pin1, pin2 to pin2, and so on. I would like to add that those Sio connectors are very difficult to get. You need one o a couple of broken Atari computers or devices, or pay a lot for them. That is why I am just using a Sio cable and putting a box with the circuit in the middle. Another thing you may consider is a switch to turn it off, if you want. In my case I am using esp-01 with 5v adapter so I have 5v levels readily available in a 1x4 pin header (RX TX 5v gnd) or something like that. Depending on the device you are connecting to you may need 3.3v adaptation, or rs232 voltage level adaptation. I updated firmware to zimodem, which is a very cool firmware, but it is not saving the updated baud rate, wifi connection and "address book". Anyway, what are your plans for esp8266? Or using something else? Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted June 6, 2018 Share Posted June 6, 2018 Hey dropcheck, greets manterola, my drawing doesn't seem so clear, than I was hoping I already have two of these plugs from a totally damaged 1027 so, that's not tbe problem. The left plug is on top of the PCB, while the right one is mounted upside down, on the backside of the PCB. That is why I still hope, my drawing is o. K. I already have a esp8266 12e WiFi. It IS 5V tolerant, however I'll use a level shifter and a Oled 64x128. The Wifi board has a build in 3.3v level shifter. I can use it for the lv site of the level shifter as well as for the OLed. The switch however, I just forgot... :-( There is no need for me to build it as small as possible, so I use a slightly bigger case. So the plan was, to connect the rxtr lines of the esp (via level shifer), with the pads marked Rx Tx on my drawing. Or do I have to cross the lines? Stefan Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted June 6, 2018 Share Posted June 6, 2018 (edited) Not sure what you are trying to do. Is it a SIO2Wifi adapter? Sorry, I should have answered your questions first. Yes, it is a Sio2WiFi adapter, but without the need of a RS232 Chip. We talked about the "need" of level shifting earlier in this thread. Ttl - > RS232 - > RS232 - > TTl So, it is just the 74LS00 part of the RVerter. Manterola figured ot, what I was to afraid to try. The motor line is operating the 74ls00 and keeps the ESP chip 'off' the line as long as the RVerter (bobverter) driver did not tell him the opposite. Stefan Edited June 6, 2018 by Stefan Both Quote Link to comment Share on other sites More sharing options...
manterola Posted June 6, 2018 Share Posted June 6, 2018 Hey dropcheck, greets manterola, my drawing doesn't seem so clear, than I was hoping I already have two of these plugs from a totally damaged 1027 so, that's not tbe problem. The left plug is on top of the PCB, while the right one is mounted upside down, on the backside of the PCB. That is why I still hope, my drawing is o. K. I already have a esp8266 12e WiFi. It IS 5V tolerant, however I'll use a level shifter and a Oled 64x128. The Wifi board has a build in 3.3v level shifter. I can use it for the lv site of the level shifter as well as for the OLed. The switch however, I just forgot... :-( There is no need for me to build it as small as possible, so I use a slightly bigger case. So the plan was, to connect the rxtr lines of the esp (via level shifer), with the pads marked Rx Tx on my drawing. Or do I have to cross the lines? Stefan They are already crossed... Din to TX and Dout to RX Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted June 6, 2018 Share Posted June 6, 2018 Thanks!!! The first try went wrong [ashamed]. Don't know why, but somehow the layout is mirrored... Next try soon... Stefan Quote Link to comment Share on other sites More sharing options...
Dropcheck Posted June 7, 2018 Share Posted June 7, 2018 (edited) Thanks!!! The first try went wrong [ashamed]. Don't know why, but somehow the layout is mirrored... Next try soon... Stefan Yes the upside down SIO connector is mirrored. The SIO connectors have to be on same side. ie top or bottom Here's a slightly larger board with the SIO connectors on the same side on top. Edited June 7, 2018 by Dropcheck Quote Link to comment Share on other sites More sharing options...
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