tschak909 Posted October 23, 2019 Share Posted October 23, 2019 As far as firmware functionality, we really only need: * ask for interface config (ATI) * engage interactive config * explicitly set SSID * explicitly set PSK password. * set baud rate * answer * connection attempt causes RING to be emitted. * Dial out, respond to ATD ATDT ATDP ATDI and do exactly the same thing, * Switch to change telnet/raw mode * Auto-answer on/off (S0) * set guard time for +++ (S2) * set connection timeout (S7) * enable/disable RTS/CTS vs XON/XOFF vs no handshake (&K1 &K2 &K0) * load handler using same mechanisms as 850. Shouldn't be much more, but I think I can put together a firmware that's best tailored for our use. -Thom 1 Quote Link to comment Share on other sites More sharing options...
tschak909 Posted October 23, 2019 Share Posted October 23, 2019 I think what's happening here, is that this is becoming a place where multiple efforts are being discussed, and some cross pollination will hopefully occur. 1 Quote Link to comment Share on other sites More sharing options...
AtariGeezer Posted October 23, 2019 Share Posted October 23, 2019 Yep, my objective is to first develop a working R: Handler supporting RTS / CTS flow control and Carrier Detect / Drop, RING Indicator / Count, plus testing a new Amodem using that. Then I'll make the revised board dropping the 74LS00's. A new Atari-Zimodem firmware should be debugged by then... 1 Quote Link to comment Share on other sites More sharing options...
+mytek Posted October 23, 2019 Share Posted October 23, 2019 Any possibility of having this work more like a standard SIO device, thus not requiring the cassette motor control line to enable it? Quote Link to comment Share on other sites More sharing options...
tschak909 Posted October 23, 2019 Share Posted October 23, 2019 I am trying to push in this direction to get a device that can respond to type 0 and 3 polls for loading a handler. As far as the driver, Sijmen has an R:VERTER driver that is both: (1) much faster than the current R:VERTER handler (basically the equivalent of removing smog control) (2) can support much larger receive buffers (which I need for PLATOTERM to run at much higher baud rates) -Thom 4 Quote Link to comment Share on other sites More sharing options...
mozzwald Posted October 23, 2019 Author Share Posted October 23, 2019 10 minutes ago, mytek said: Any possibility of having this work more like a standard SIO device, thus not requiring the cassette motor control line to enable it? Should be possible in software. Really, all we need is the command line and read the command. If it's not for the modem, ignore it. Could probably make it work exactly/similarly to an 850. I think motor ctrl is a good temporary solution, not needed ultimately. New R: handler is probably the best route as Thom suggests 1 Quote Link to comment Share on other sites More sharing options...
AtariGeezer Posted October 23, 2019 Share Posted October 23, 2019 25 minutes ago, mytek said: Any possibility of having this work more like a standard SIO device, thus not requiring the cassette motor control line to enable it? If anyone here can program a 8040 MCU, I don't see why not... 1 Quote Link to comment Share on other sites More sharing options...
tschak909 Posted October 23, 2019 Share Posted October 23, 2019 the 8266 can literally handle being an SIO device, all itself. I've repurposed both 8266's and ESP32's as SIO devices, before. -Thom 1 Quote Link to comment Share on other sites More sharing options...
AtariGeezer Posted October 23, 2019 Share Posted October 23, 2019 2 minutes ago, tschak909 said: the 8266 can literally handle being an SIO device, all itself. I've repurposed both 8266's and ESP32's as SIO devices, before. -Thom Do you still have the sketch for that? Quote Link to comment Share on other sites More sharing options...
tschak909 Posted October 23, 2019 Share Posted October 23, 2019 https://github.com/whizzosoftware/SIO2Arduino -Thom 2 Quote Link to comment Share on other sites More sharing options...
+mytek Posted October 23, 2019 Share Posted October 23, 2019 I'd like to thank you all for being receptive to my suggestion. I must admit I had an ulterior motive, being that I would like to see MIDI co-exist peacefully with what you are doing. But even for those not interested in that, it also allows a cassette to be used without interference. Thanks again . 2 Quote Link to comment Share on other sites More sharing options...
a8isa1 Posted October 23, 2019 Share Posted October 23, 2019 3 hours ago, manterola said: Adding to what Thom said, depending on the firmware you might be able to start a raw connection without TELNET IAC negotiation. That way you will be able to do file transfers. For zimodem, for example, you need to "dial" with ATD xyz.zzz.xy (without the T) to create a raw connection. Or create and address book entry and configure it , with "telnet" support. I tried this but I'll try again. -SteveS Quote Link to comment Share on other sites More sharing options...
manterola Posted October 23, 2019 Share Posted October 23, 2019 Hey SteveS, I meant to say "create and address book entry and configure it , withOUT "telnet" support." and just to be sure dial with: ATD 123 , without T, not with ATDT 123 Quote Link to comment Share on other sites More sharing options...
mozzwald Posted October 24, 2019 Author Share Posted October 24, 2019 7 hours ago, Dropcheck said: Okay here's two versions: Mozzwald if you could check the schematic and see if I missed something. The NodeMCU sits in the female sockets with the usb towards the bottom. Nevermind what I said earlier, it looks good Quote Link to comment Share on other sites More sharing options...
Dropcheck Posted October 24, 2019 Share Posted October 24, 2019 11 hours ago, mozzwald said: Nevermind what I said earlier, it looks good I've got the actual level shifter boards coming in sometime tomorrow. Once I've verified the spacing and verified the schematic, (I always miss something?) I'll finalize the board design. Attribution added of course. Not sure if I'll offer a bare or completed board for sale. I checked the rough gerbers against OSHPark and they say around $17 for three bare boards, which isn't too bad. I may go that way for the bare boards. And/Or offer them as well on my website, just in case you can't stand purple pcbs. ? 1 Quote Link to comment Share on other sites More sharing options...
Mr Robot Posted October 24, 2019 Share Posted October 24, 2019 Will you be releasing the gerber files? Quote Link to comment Share on other sites More sharing options...
Dropcheck Posted October 24, 2019 Share Posted October 24, 2019 7 minutes ago, Mr Robot said: Will you be releasing the gerber files? I don't think so. It's such a simple board, that those who can make it in Eagle or Ki-cad or Diptrace should have no problem and those that can't also aren't likely to be interested in diy anyway. They just want the board and fully populated and programmed at that. Never fear there will be an option for a bare board and BOM purchase either through my website or OSHpark for those in the middle. 1 Quote Link to comment Share on other sites More sharing options...
tschak909 Posted October 24, 2019 Share Posted October 24, 2019 Am also wondering, if implementing a secondary buffer on the 8266 would alleviate some high speed issues, as well... Quote Link to comment Share on other sites More sharing options...
a8isa1 Posted October 24, 2019 Share Posted October 24, 2019 20 hours ago, manterola said: Hey SteveS, I meant to say "create and address book entry and configure it , withOUT "telnet" support." and just to be sure dial with: ATD 123 , without T, not with ATDT 123 Using an address book or manual dialing made no difference. I still can't get file transfers to work. The NAK responses were much quicker though and regular. -SteveS Quote Link to comment Share on other sites More sharing options...
Dropcheck Posted October 25, 2019 Share Posted October 25, 2019 On 10/24/2019 at 7:28 AM, Dropcheck said: I've got the actual level shifter boards coming in sometime tomorrow. Once I've verified the spacing and verified the schematic, (I always miss something?) I'll finalize the board design. Attribution added of course. Not sure if I'll offer a bare or completed board for sale. I checked the rough gerbers against OSHPark and they say around $17 for three bare boards, which isn't too bad. I may go that way for the bare boards. And/Or offer them as well on my website, just in case you can't stand purple pcbs. ? Leave it to the UPS. The package tracked to Oklahoma City at 5:30am and then nothing all day long. Usually it gets to Muskogee within a couple of hours and then is dispatched out of there for the last mile delivery. Amazon is claiming it might still get here today. But it's getting dark now and it's looking more and more like it won't arrive until Monday. Quote Link to comment Share on other sites More sharing options...
a8isa1 Posted October 26, 2019 Share Posted October 26, 2019 On 10/21/2019 at 9:00 AM, mozzwald said: Oops, yeah, I have the CMD and MTR lines wrong the wiring diagram, sorry about that. You should probably use a level shifter, but to each his own. You may burn out the esp. The swap for TX/RX is to prevent the esp boot msgs from being sent to the Atari at power up. I thought it could interfere with boot. Keep this in mind if you have any issues booting with it connected. If you could try doing a file transfer and report your results it would be much appreciated. I can do small files ~15k or less but anything larger never starts and just times out using Bob Term. And yesterday I tested it with Platoterm at 1200 baud which worked great. I managed to transfer very small files from the Atari to minicom (linux box) however minicom reported the average rate was 3 bytes/second. Other than the initial NAK at the start of the process there were no error messages. All blocks transferred without retries, just agonizingly slowly. I put both Zimodems into "binary mode" (which is probably the default) with ATS45=0. I then put the Zimodem connected to minicom into answer mode, ATA1111 (which is port 1111) and used manual *dial* from the Atari, ATD"192.168.1.223:1111". I did an Xmodem send from the Atari. Transfers in the other direction failed. -SteveS 2 Quote Link to comment Share on other sites More sharing options...
AtariGeezer Posted October 28, 2019 Share Posted October 28, 2019 This is what my v3 board looks like, just need to wire it up now. And it's schematic. 3 Quote Link to comment Share on other sites More sharing options...
mozzwald Posted October 28, 2019 Author Share Posted October 28, 2019 15 minutes ago, AtariGeezer said: This is what my v3 board looks like, just need to wire it up now. Nice. This is what I made for Thom to use as a test rig. He should be getting it this week. 5 Quote Link to comment Share on other sites More sharing options...
Mr Robot Posted October 28, 2019 Share Posted October 28, 2019 5 minutes ago, mozzwald said: This is what I made for Thom to use as a test rig. I don't see the 10µF cap on there, is it under the nodemcu? Quote Link to comment Share on other sites More sharing options...
mozzwald Posted October 28, 2019 Author Share Posted October 28, 2019 9 minutes ago, Mr Robot said: I don't see the 10µF cap on there, is it under the nodemcu? There's a pull down resistor under the nodemcu, no capacitor. The nodemcu already has a 10uf capacitor on it's input Quote Link to comment Share on other sites More sharing options...
Like us on Facebook
Follow us on Twitter
AtariAge on Instagram
Watch us on YouTube
Chat on Discord
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.