Stefan Both Posted August 20, 2017 Share Posted August 20, 2017 Slight confusion on the part number, this is the one you would be interested in: MAX3232 Datasheet (same as used in that "Connecting the Atari ST to the Internet" project). A MAX2322 is an entirely different animal. - Michael [My to do list: buy new glasses...] Thank you... Stefan Quote Link to comment Share on other sites More sharing options...
+mytek Posted August 20, 2017 Share Posted August 20, 2017 [My to do list: buy new glasses...] Thank you... Stefan While you are at it, can you please buy some for me as well? And also a new brain would be nice. Who am I kidding, how about a whole new body - Michael 1 Quote Link to comment Share on other sites More sharing options...
AtariGeezer Posted August 20, 2017 Share Posted August 20, 2017 So then you would be thinking of a SIO connection? I'm thinking of connecting to the 850 or PRC... The SIO connection should still work with the schematic on the ST page using an R-Verter driver. Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted August 21, 2017 Share Posted August 21, 2017 Yes, I'm searching for a solution without the need of an 850 (otherwise I have to buy one first) May you give me more information about the R - verter driver? Has it something to do with the Atarian R device? Stefan Quote Link to comment Share on other sites More sharing options...
+David_P Posted August 21, 2017 Share Posted August 21, 2017 R Verter was a commercial SIO to RS232 converter. Lots of plans for DIY versions available. 1 Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted August 21, 2017 Share Posted August 21, 2017 (edited) R Verter was a commercial SIO to RS232 converter. Lots of plans for DIY versions available.Thank you for the explanation.May you have a look at the website? http://atrey.karlin.mff.cuni.cz/~pavel/atari/rvert.html Is it the converter you mentioned? do I need a special handler / driver when using the R Verter, and can I still daisy chain the diskdrive(s) ? Stefan Edited August 21, 2017 by Stefan Both Quote Link to comment Share on other sites More sharing options...
+David_P Posted August 21, 2017 Share Posted August 21, 2017 There is a driver required. And it's a SIO dead end, unless you add a pass through connection. They are powered through the SIO line as well; if you have a heavily modded system you might overtax the Atari power supply. Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted August 21, 2017 Share Posted August 21, 2017 There is a driver required. And it's a SIO dead end, unless you add a pass through connection. They are powered through the SIO line as well; if you have a heavily modded system you might overtax the Atari power supply. Sounds perfect ! Don't worry regarding the PSU. I have a replacement power supply. 2.5 Amps is probably enough. I just found the schematics for the RVerter. Guess, I give it a try. Stefan Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted September 10, 2017 Share Posted September 10, 2017 (edited) It works on the "opposite" Now I start building the RVerter to bring it to my Atari Stefan Edited September 10, 2017 by Stefan Both 2 Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted September 10, 2017 Share Posted September 10, 2017 (edited) I attached a RVerter circuit diagram. Can somebody confirm, SIO Pin DT.IN is Pin 3 instead Pin 2 ? Respectively, what is the correct pin for P6 on the 74Ls00... I just want to avoid expensive mistakes... Thank you Stefan Edited September 10, 2017 by Stefan Both 1 Quote Link to comment Share on other sites More sharing options...
venom4728a Posted October 28, 2017 Share Posted October 28, 2017 How is this project coming along? I am really interested in getting an Atari wifi device, 1 Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted October 28, 2017 Share Posted October 28, 2017 I still did not managed it. Free time is short at the moment and I could not figure out, is the selfmade Rverter is faulty or the ESP chip. Quote Link to comment Share on other sites More sharing options...
mechanerd Posted December 9, 2017 Share Posted December 9, 2017 I attached a RVerter circuit diagram. Can somebody confirm, SIO Pin DT.IN is Pin 3 instead Pin 2 ? Respectively, what is the correct pin for P6 on the 74Ls00... I just want to avoid expensive mistakes... Thank you Stefan Did you get it to work? I like really like this. I was thinking of snagging an 850, but now you got my attention to make a r-verter. I vaguely remember it , does it install as a true R: handle with a binary? Using the motor control line, would that toggle the 410 recorder on and off if you have play pressed? Basically you have half a MIDI mate there. Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted December 9, 2017 Share Posted December 9, 2017 Both ESP chips work well... on a C64 the NodeMcu and on my C128 the cheaper ESP-01 chip. So the Hayes emulation works. But... It did not work on the Atari XL (yet). I still couldn't find out, is the problem related to the rverter, or am I to stupid to operate the terminal software. Stefan Quote Link to comment Share on other sites More sharing options...
Mathy Posted December 9, 2017 Share Posted December 9, 2017 Hello Stefan That's why you should come to an Atari 8 bit meeting like the NOMAM* or the Fujiama. You can not imagine the amount of knowledge that comes together at meetings like that. An example: LuckyBuck, the guy that's trying to collect and preserve all software for the Atari 8 bit computer that was written until somewhere in the middle of the 80's, had a fairly long to-do list when he visited the Fujiama for the first time last year. He never would have imagined that he could have checked off all the items on his list by the end of the Fujiama. But by the end of the 3.something day meeting, the list was completely checked off. Sincerely Mathy *: To all others: No, you do not have to remind us that "NOMAM" reminds you of Al Bundy's "NO MA'AM". We know. Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted December 10, 2017 Share Posted December 10, 2017 Hello Stefan That's why you should come to an Atari 8 bit meeting like the NOMAM* or the Fujiama... Dear Mathy, you're right. I should visit a No'Maam meeting Stefan Quote Link to comment Share on other sites More sharing options...
a8isa1 Posted January 7, 2018 Share Posted January 7, 2018 (edited) 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 Edited January 7, 2018 by a8isa1 1 Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted January 8, 2018 Share Posted January 8, 2018 (edited) Thank you for your message. It is the same firmware already running on my C64. So that is the next thing I will test. For a short moment, let's forget about RS232 Level shifting and tell me how the RVerter works. At least with an ESP -12 it must be possible to use just another (ESP)pin for a "software" solution, instead the RVerter. I guess the RVerter is "triggered" by another SIO pin, if the information of the SIO bus line belongs to the modem? Stefan Edited January 8, 2018 by Stefan Both Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted January 8, 2018 Share Posted January 8, 2018 (edited) What does Pin 9 and Pin 13 ? Both are inputs, aren't they? Pin 13 isn´t in use at all here... why? It is the "newer version" of the RVerter, isn´t it? Whatever the program/firmware of the ESP-Chip does... If I change all the funktions reading / writing at Tx / Rx into something like this if ((old funktion) && (Pin ) [where pin 8 is in fact a free GiPo pin of our choice connected to motor pin 8] it should replace the RVerter device ?! Any help appreciated ! Stefan Edited January 8, 2018 by Stefan Both Quote Link to comment Share on other sites More sharing options...
talanthalus Posted January 9, 2018 Share Posted January 9, 2018 Following this. I was looking at options to get mine online potentially involving an 850 or ATR8000 via a Lantronix device or something in that realm, but this definitely looks interesting as well. Quote Link to comment Share on other sites More sharing options...
Stefan Both Posted January 9, 2018 Share Posted January 9, 2018 ..., but this definitely looks interesting as well. Yes, I agree. But it would be much more promisingif I had more knowledge. Stefan Quote Link to comment Share on other sites More sharing options...
a8isa1 Posted January 11, 2018 Share Posted January 11, 2018 (edited) Sorry Stefan, I don't have any answers to your questions. To change the subject, I got Altirra to talk to my 800XL with the 'Zimodem'. I'm running ICE-T at both ends and only sent a few characters but I'm happy. The Zimodem is in some monitor mode so it's not 2-way communication but I must be close. I also updated the Zimodem firmware (to 3.3) live. It's a nice convenience. Edited January 11, 2018 by a8isa1 Quote Link to comment Share on other sites More sharing options...
jeffpiep Posted March 21, 2018 Share Posted March 21, 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 "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 an open drain output with a 4.7k pull up resistor and 100 ohm series resistor - that would limit current into the device. So perhaps things are fine because there's limited current (maybe a couple hundred microamps) being shunted by the internal ESD protection circuit. Thoughts? Quote Link to comment Share on other sites More sharing options...
BillC Posted March 21, 2018 Share Posted March 21, 2018 (edited) Never mind Edited March 21, 2018 by BillC Quote Link to comment Share on other sites More sharing options...
a8isa1 Posted March 21, 2018 Share Posted March 21, 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 an open drain output with a 4.7k pull up resistor and 100 ohm series resistor - that would limit current into the device. So perhaps things are fine because there's limited current (maybe a couple hundred microamps) being shunted by the internal ESD protection circuit. Thoughts? Sounds reasonable but it's probably obvious that I don't know hardware. Yep, both NodeMCUs have been working these past nine months. I can't say I use them very often on the Atari. I still haven't repaired my svideo cable and ICE-T is virtually unusable via composite video. I'll be more inclined to get it done if someone can patch The Learning Phone binary to work with the R-Verter driver. Currently an 850 is required and I don't own one any longer. 1 Quote Link to comment Share on other sites More sharing options...
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