tty2oled Soft&Hardware Add-On (Shows Core based Pictures on a Display)

[venice]

Update
I have uploaded the 93 Text-Based XBM Pictures from Jukk@M to the Github Repository.

To keep the "Normal" Graphic-Pictures and the Text-Pictures a bit separated,
the Text Pictures got their own folder "XBM_Text" in the Repo, and their own List in the Translation List (still working on).

With the new INI Option "USETEXTPICTURE" you can enable the download of these Text-Pictures files.
Text-Pictures will be downloaded/updated before the "Normal" XBM Files.
Means the "Normal" XBM's have Priority if there is a file with the same name in both XBM Folders.

Minor: The folder "XBM_SD" was renamed to "XBM".

We have now Text or Graphic Pictures for 259 Cores/Arcades.

Cheers

[dave18]

This is a great project. I'm finally getting around to putting my MiSTER into a case and have adapted this to a Hobby Components 128x64 screen paired with a TTGO T8. No soldering required as everying (including the FTDI board) can be connected using dupont wires.

Any logo over 128 pixels wide get scaled horizontally by an integer of 2 so the existing logos are all usable. Main problem I had was having to rewrite all the string handling code from String to cstring as for some reason the String lib for ESP under Sketch just caused random crashes.

Thanks for creating this project, just need the last bits for my case to arrive so I can put it all together.

Dave

[venice]

Hi Dave,

This is a great project. I'm finally getting around to putting my MiSTER into a case and have adapted this to a Hobby Components 128x64 screen paired with a TTGO T8. No soldering required as everying (including the FTDI board) can be connected using dupont wires.
...
Dave

good to hear you got it working with the smaller Display.

including the FTDI board

Did you add an separate FTDI Adapter?

Thanks for creating this project, just need the last bits for my case to arrive so I can put it all together.

Please drop a picture here when it's final.

[dave18]

Did you add an separate FTDI Adapter?

I did (I assumed I had to). I've got an FTDI adapter plugged into a USB hub on the MiSTer with the RX/TX going to to the ESP. How are you sending the serial messages to the ESP?

The answer to that might also answer another issue I have. If I try and use the USB version (the one I have working is the SD Card version) the serial transfer never gets all 2048 picture bytes, just various amounts usually between 256 and 1200. The core change messages come across fine though. Any ideas what might be affecting the serial stream? I've updated to the latest files for etc/init.d/S60tty2oled and usr/bin/tty2oled

Please drop a picture here when it's final.
[/quote]
Will do.

[venice]

...How are you sending the serial messages to the ESP?

The MiSTer's USB Port and the ESP's Micro USB Port are directly connected with an simple USB Cable for Power and USB-Data.
No need for an separate FTDI Adapter.
I use an USB Board with Pin's instead of USB-Connectors.

ESP_OLED_USB_with_comments.jpg

Maybe thats the Problem with your transmission.
You have two devices connected to RX and TX of the ESP.
The ESP's onboard CP21xx and your external FTDI.

[dave18]

Thanks for the info, works the same with a direct cable which at least gives me a spare FTDI board, however I still have the same problem that the pictures aren't sent reliably over serial, but the command strings are. Strange.

[venice]

Hi,
in the setup part of the sketch the display width and height are detected.

Code: Select all

// Get Display Dimensions
DispWidth = u8g2.getDisplayWidth();
DispHeight = u8g2.getDisplayHeight();

Based on these two values memory for the transferred data is allocated and so many picture bytes are red from the data stream and stored into the allocated memory.

From the function sd2oled_readndrawlogo

Code: Select all

const int logoBytes = DispWidth * DispHeight / 8;
...

logoBin = (unsigned char *) malloc(logoBytes);    // Reserve Memory for Picture-Data
Serial.readBytes(logoBin, logoBytes);             // Read 2048 Bytes from Serial

If these display values are too small its possible not enough data are red.

Could you double check these two values as your display has only half the pixels of an ssd1322.

You can also try and replace logoBytes with 2048.

[dave18]

venice

Thanks for your suggestion, however I had already hardcoded logoBytes to 2048. The ino file is here https://github.com/dave18/MiSTer_tty2ol ... SD1306_USB

I know it is not a display error as I've tested that all the display routines work fine on the display size (the TESTDISPLAY define shows the Amiga logo rather than the serial input).

It is definitely not reading the bytes correctly from the serial stream, as I can compare the incoming bytes to the XBMP file and see they get corrupted after a while. I can't see what the linux side is sending but I assume it is sending the correct bytes for it to work for others.

The debug output, which includes what was received over Serial is below

Code: Select all

Show Startscreen
Received Corename or Command: QWERTZ
Received Corename or Command: att
Received Corename or Command: CORECHANGE
Attempting to read 2048 bytes from Serial
Successfully read 1214 bytes from Serial
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Byte at loc 722 is 1fhh
Byte at loc 723 is 0hh
Byte at loc 724 is ffhh
Byte at loc 725 is ffhh
Byte at loc 726 is ffhh
Byte at loc 727 is fhh
Byte at loc 728 is f8hh
Byte at loc 729 is ffhh
Byte at loc 730 is 0hh
Byte at loc 731 is 0hh
Byte at loc 732 is 0hh
Byte at loc 733 is 0hh
Byte at loc 734 is 0hh
Byte at loc 735 is 0hh
Byte at loc 736 is fehh
Byte at loc 737 is 7hh
Byte at loc 738 is f8hh
Byte at loc 739 is ffhh
Byte at loc 740 is fhh
Byte at loc 741 is 0hh
Byte at loc 742 is ffhh
Byte at loc 743 is fhh
Byte at loc 744 is f8hh
Byte at loc 745 is 3fhh
Byte at loc 746 is e0hh
Byte at loc 747 is ffhh
Byte at loc 748 is ffhh
Byte at loc 749 is ffhh
Byte at loc 750 is 7hh
Byte at loc 751 is 0hh
Byte at loc 752 is 0hh
Byte at loc 753 is ffhh
Byte at loc 754 is fhh
Byte at loc 755 is 0hh
Byte at loc 756 is fchh
Byte at loc 757 is ffhh
Byte at loc 758 is ffhh
Byte at loc 759 is 7hh
Byte at loc 760 is f0hh
Byte at loc 761 is ffhh
Byte at loc 762 is 0hh
Byte at loc 763 is 0hh
Byte at loc 764 is 0hh
Byte at loc 765 is 0hh
Byte at loc 766 is 0hh
Byte at loc 767 is 0hh
Byte at loc 768 is fchh
Byte at loc 769 is 7hh
Byte at loc 770 is f8hh
Byte at loc 771 is ffhh
Byte at loc 772 is 7hh
Byte at loc 773 is 0hh
Byte at loc 774 is fchh
Byte at loc 775 is 7hh
Byte at loc 776 is f0hh
Byte at loc 777 is 3fhh
Byte at loc 778 is 80hh
Byte at loc 779 is ffhh
Byte at loc 780 is ffhh
Byte at loc 781 is ffhh
Byte at loc 782 is 1hh
Byte at loc 783 is 0hh
Byte at loc 784 is 0hh
Byte at loc 785 is fchh
Byte at loc 786 is fhh
Byte at loc 787 is 0hh
Byte at loc 788 is f8hh
Byte at loc 789 is ffhh
Byte at loc 790 is ffhh
Byte at loc 791 is 3hh
Byte at loc 792 is e0hh
Byte at loc 793 is 7fhh
Byte at loc 794 is 0hh
Byte at loc 795 is 0hh
Byte at loc 796 is 0hh
Byte at loc 797 is 0hh
Byte at loc 798 is 0hh
Byte at loc 799 is 0hh
Byte at loc 800 is f0hh
Byte at loc 801 is 7hh
Byte at loc 802 is f0hh
Byte at loc 803 is ffhh
Byte at loc 804 is 7hh
Byte at loc 805 is 0hh
Byte at loc 806 is f8hh
Byte at loc 807 is 7hh
Byte at loc 808 is e0hh
Byte at loc 809 is 1fhh
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Byte at loc 811 is fehh
Byte at loc 812 is ffhh
Byte at loc 813 is 1fhh
Byte at loc 814 is 0hh
Byte at loc 815 is 0hh
Byte at loc 816 is 0hh
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Byte at loc 822 is 7fhh
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Byte at loc 824 is c0hh
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Byte at loc 827 is 0hh
Byte at loc 828 is 0hh
Byte at loc 829 is 0hh
Byte at loc 830 is 0hh
Byte at loc 831 is 0hh
Byte at loc 832 is 0hh
Byte at loc 833 is 0hh
Byte at loc 834 is 0hh
Byte at loc 835 is 0hh
Byte at loc 836 is 0hh
Byte at loc 837 is 0hh
Byte at loc 838 is 0hh
Byte at loc 839 is 0hh
Byte at loc 840 is 0hh
Byte at loc 841 is 0hh
Byte at loc 842 is 0hh
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Byte at loc 847 is 0hh
Byte at loc 848 is 0hh
Byte at loc 849 is 0hh
Byte at loc 850 is 0hh
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Byte at loc 857 is 0hh
Byte at loc 858 is 0hh
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Byte at loc 860 is 0hh
Byte at loc 861 is 0hh
Byte at loc 862 is 0hh
Byte at loc 863 is 0hh
Byte at loc 864 is 0hh
Byte at loc 865 is 0hh
Byte at loc 866 is 0hh
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Byte at loc 880 is 0hh
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Byte at loc 882 is 0hh
Byte at loc 883 is 0hh
Byte at loc 884 is 0hh
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Byte at loc 887 is 0hh
Byte at loc 888 is 0hh
Byte at loc 889 is 0hh
Byte at loc 890 is 0hh
Byte at loc 891 is 0hh
Byte at loc 892 is 0hh
Byte at loc 893 is 0hh
Byte at loc 894 is 0hh
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Byte at loc 897 is ffhh
Byte at loc 898 is ffhh
Byte at loc 899 is ffhh
Byte at loc 900 is ffhh
Byte at loc 901 is ffhh
Byte at loc 902 is ffhh
Byte at loc 903 is ffhh
Byte at loc 904 is ffhh
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Byte at loc 907 is ffhh
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Byte at loc 911 is ffhh
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Byte at loc 914 is ffhh
Byte at loc 915 is c0hh
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Byte at loc 918 is fhh
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Byte at loc 920 is e3hh
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Byte at loc 922 is 0hh
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Byte at loc 924 is 0hh
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Byte at loc 932 is ffhh
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Byte at loc 939 is ffhh
Byte at loc 940 is ffhh
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Byte at loc 942 is ffhh
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Byte at loc 950 is 9fhh
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Byte at loc 962 is ffhh
Byte at loc 963 is ffhh
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Byte at loc 965 is ffhh
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Byte at loc 967 is ffhh
Byte at loc 968 is ffhh
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Byte at loc 970 is ffhh
Byte at loc 971 is ffhh
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Byte at loc 974 is ffhh
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Byte at loc 996 is bfhh
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Byte at loc 1095 is fbhh
Byte at loc 1096 is bfhh
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Byte at loc 1098 is ffhh
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Byte at loc 1113 is c0hh
Byte at loc 1114 is 0hh
Byte at loc 1115 is 0hh
Byte at loc 1116 is 0hh
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Byte at loc 1118 is 0hh
Byte at loc 1119 is f0hh
Byte at loc 1120 is ffhh
Byte at loc 1121 is ffhh
Byte at loc 1122 is ffhh
Byte at loc 1123 is ffhh
Byte at loc 1124 is ffhh
Byte at loc 1125 is ffhh
Byte at loc 1126 is ffhh
Byte at loc 1127 is ffhh
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Byte at loc 1129 is ffhh
Byte at loc 1130 is ffhh
Byte at loc 1131 is ffhh
Byte at loc 1132 is ffhh
Byte at loc 1133 is ffhh
Byte at loc 1134 is ffhh
Byte at loc 1135 is ffhh
Byte at loc 1136 is ffhh
Byte at loc 1137 is ffhh
Byte at loc 1138 is ffhh
Byte at loc 1139 is 30hh
Byte at loc 1140 is 0hh
Byte at loc 1141 is ehh
Byte at loc 1142 is c0hh
Byte at loc 1143 is 1hh
Byte at loc 1144 is 37hh
Byte at loc 1145 is c0hh
Byte at loc 1146 is 0hh
Byte at loc 1147 is 0hh
Byte at loc 1148 is 0hh
Byte at loc 1149 is 0hh
Byte at loc 1150 is 0hh
Byte at loc 1151 is f0hh
Byte at loc 1152 is ffhh
Byte at loc 1153 is ffhh
Byte at loc 1154 is ffhh
Byte at loc 1155 is ffhh
Byte at loc 1156 is ffhh
Byte at loc 1157 is ffhh
Byte at loc 1158 is ffhh
Byte at loc 1159 is ffhh
Byte at loc 1160 is ffhh
Byte at loc 1161 is ffhh
Byte at loc 1162 is ffhh
Byte at loc 1163 is ffhh
Byte at loc 1164 is ffhh
Byte at loc 1165 is ffhh
Byte at loc 1166 is ffhh
Byte at loc 1167 is ffhh
Byte at loc 1168 is ffhh
Byte at loc 1169 is ffhh
Byte at loc 1170 is ffhh
Byte at loc 1171 is 30hh
Byte at loc 1172 is 0hh
Byte at loc 1173 is ehh
Byte at loc 1174 is 80hh
Byte at loc 1175 is ffhh
Byte at loc 1176 is 37hh
Byte at loc 1177 is c0hh
Byte at loc 1178 is 0hh
Byte at loc 1179 is 0hh
Byte at loc 1180 is 0hh
Byte at loc 1181 is 0hh
Byte at loc 1182 is 0hh
Byte at loc 1183 is f0hh
Byte at loc 1184 is ffhh
Byte at loc 1185 is ffhh
Byte at loc 1186 is ffhh
Byte at loc 1187 is ffhh
Byte at loc 1188 is ffhh
Byte at loc 1189 is ffhh
Byte at loc 1190 is ffhh
Byte at loc 1191 is ffhh
Byte at loc 1192 is ffhh
Byte at loc 1193 is ffhh
Byte at loc 1194 is ffhh
Byte at loc 1195 is ffhh
Byte at loc 1196 is ffhh
Byte at loc 1197 is ffhh
Byte at loc 1198 is ffhh
Byte at loc 1199 is ffhh
Byte at loc 1200 is ffhh
Byte at loc 1201 is ffhh
Byte at loc 1202 is ffhh
Byte at loc 1203 is 30hh
Byte at loc 1204 is 0hh
Byte at loc 1205 is ehh
Byte at loc 1206 is 0hh
Byte at loc 1207 is ffhh
Byte at loc 1208 is 31hh
Byte at loc 1209 is c0hh
Byte at loc 1210 is 0hh
Byte at loc 1211 is 0hh
Byte at loc 1212 is 0hh
Byte at loc 1213 is 0hh
Case 1
Width passed to oled_drawlogo64h is 256 
Calling drawXBMPHalf with w value of 128 

[dave18]

I did try lowering the CPU freq to 160MHz in case it was trying to read the serial stream too fast but it didn't help.

[dave18]

The serial input seem fine up to byte 244 (0xF4) and then corrupts, byte 251 (0xFB) of the serial stream then seem to pick up at byte 995 (0x3E3) of the XBMP!

[venice]

Silly Question, same Baudrate on both ends?
If yes which is it? I think your are on 115200.

We have successfully tested 921600.

Have you tried another cable?

[dave18]

I was trying on 115200 on both end. I've tried other values since and the highest that works is 19200 (which seems to transmit fast enough for the use case). I'll try some other cable and see if they allow for faster speeds. At least I now the code/interface works, and I could live with 19200 if I had to.

[dave18]

Tried with two different hubs and a couple of cables and 19200 seems the maximum reliable value. Might treat myself to a new high quality cable as a last resort, otherwise will just run in at 19200.

[venice]

I am using a modded Hub v2.1 with an cheap usb to dupont cable from ali.
So nothing special.

But good to hear that it works so far.

[RealLarry]

Tried with two different hubs and a couple of cables and 19200 seems the maximum reliable value. Might treat myself to a new high quality cable as a last resort, otherwise will just run in at 19200.

Just read your comments and I'm wondering about your low transfer rate. Venice and I did dozens of tests with different types of ESP's and speed, all of them were working with a speed up to 921600 baud. Don't know what type of cables I'm using, but I'm sure that there are no-name ones and brand-named cables, all mixed for ready2use.
Have a close look at the solder points of your ESP, if possible. Maybe that there is a bad solder point which interferere with higher baud rates. I had a similar issue with one of my displays, which displayed some pictures, some not, resets while displaying and so on. Found a cold joint at displays connector, resoldered it and voila, it's working stable now.

[dave18]

Hi RealLarry

I've tried with 2 different ESPs (although both TTGO T8s from the same supplier) and they both have issues above 19200.

Interestingly I upload from Sketch to the boards at 921600 and the upload always works without issue (although the upload process may have some error checking built it to resend any missed data).

I think maybe the supplier has used a substandard component somewhere affecting my particular boards, I can't think of any other reason for it to be unstable above 19200.

Dave

[RealLarry]

I've tried with 2 different ESPs (although both TTGO T8s from the same supplier) and they both have issues above 19200.

Interestingly I upload from Sketch to the boards at 921600 and the upload always works without issue (although the upload process may have some error checking built it to resend any missed data).

Good to know!

I think maybe the supplier has used a substandard component somewhere affecting my particular boards, I can't think of any other reason for it to be unstable above 19200.

I don't think so then. When the upload of the Sketch is working with highest baud rates, why not with MiSTer...? Are you using a "MiSTer USB hub" or something similar? Sufficient power source?
Another test you can run for troubleshooting is to connect two FTDI's between MiSTer and PC to transfer, save and compare some data between them. My feeling is that there must be a bug outside of your EPS's. I've a box full of small and "big" EPS's, some normal, some for a skidded price, but - alas - never got a problem there.

[dave18]

I've tried using two FTDIs to send from MiSTer to PC and it seems to work ok. I've attached the PuTTY logs at both 38400 and 921600. The MiSTer is clearly sending the data correctly.

The MiSTer side FTDI is plugged into the same USB Hub I've been using with the cable so it doesn't seem like a hub issue. Hub isn't powered so I thought maybe the ESP is drawing more power than the FTDI and causing an issue there, but I've tried with a powered hub with no luck.

It feels like a buffer issue on the ESP receiving side, in that if the serial stream is too fast the buffer is getting overwritten before it can be read, but why is that not affecting all ESP implementations?

[RealLarry]

I've tried using two FTDIs to send from MiSTer to PC and it seems to work ok. I've attached the PuTTY logs at both 38400 and 921600. The MiSTer is clearly sending the data correctly.

Very well done/debugged, Dave. But what damned crap is that? All components are working fine but ESP won't take 2kb of data at normal and high speed? I hate this kind of trouble. If you were my neighbor I'd lent a bunch of working devices for further tests...

[dave18]

Yeah, it would be good to test with other modules.

I did another test, if I send the serial data to the ESP using the FTDI (same FTDI and hub combo that worked with the PC) with the RX/TX wired directly to the ESP TX/RX pins (plus GND) it still fails to receive the data properly, so it can't be the serial chip or USB cable at fault. I've powered the ESP from my monitor USB port so there shouldn't be any serial cross talk.

It there any way to configure the serial buffer size? The maximum Serial.available() gets to for me is 256 bytes before it maxes out, is that the same buffer size you would expect?

btw, this is the product I bought https://www.ebay.co.uk/itm/133616318730

[RealLarry]

It there any way to configure the serial buffer size? The maximum Serial.available() gets to for me is 256 bytes before it maxes out, is that the same buffer size you would expect?

Thats the same information I'm aware of. 256 bytes buffers max. Very strage behaviour of your ESP. I'm currently out of new ideas.

[RascalUK]

Might treat myself to a new high quality cable as a last resort

We sure know how to live round these parts don't we?

[dave18]

RealLarry

I wonder if it's a library issue. I had to rewrite the the code to get rid of Strings as they crashed my ESP, yet I assume they work fine on yours.. If my ESP libs are older then maybe there's a bug in the serial code too. I just added the board manager URL and installed esp32 1.0.6 which also installed the libs into ArduinoData folder.

Out of interest, which board do you select, I just choose ESP32 Dev Module.

Might treat myself to a new high quality cable as a last resort

We sure know how to live round these parts don't we?

Worse part is explaining to my wife why I'm buying a new cable when I have a box full of them already taking up room in the house!

[venice]

...I just added the board manager URL and installed esp32 1.0.6 which also installed the libs into ArduinoData folder.

Out of interest, which board do you select, I just choose ESP32 Dev Module.

I am working with Arduino 1.8.13 / ESP32 Package 1.0.5 and 1.0.6 on Windows.
RealLarry works with Linux.

For Board Settings see https://github.com/venice1200/MiSTer_tt ... o-Settings

[dave18]

Hmm, everything seems right. Maybe I need to try an uninstall/reinstall

[venice]

Hmm, everything seems right. Maybe I need to try an uninstall/reinstall

Someone else around you helping out with an ESP32 for tests?

[dave18]

Happy to swap code/esp with anyone who wants to test stuff (am in UK). Case arrived today so am distracted measuring and 3d printing, will hopefully have something to show after the weekend.

[Reg]

Great news for me, the kit arrived from China so I can plug on.

I have two simple questions that I just want to ask if I may...

I assume by everything that I've read all I do is grab the update script with this...

wget https://raw.githubusercontent.com/venic ... ty2oled.sh -O /media/fat/Scripts/update_tty2oled.sh

...and it will install everything.

Second question, I am seeing an unholy amount of grounds that I need to solder together - can anyone advise any tips or tricks, I've daisychained grounds on larger projects before ( buttons for cabs ), but this is going to look like it's a smaller solution needed. Don't mind if I have to buy more parts - I'd like to just take a steer from those that have done this and have a good solution - learn from experts if I may.

Thank you.

[venice]

Great news for me, the kit arrived from China so I can plug on.

I have two simple questions that I just want to ask if I may...

I assume by everything that I've read all I do is grab the update script with this...

wget https://raw.githubusercontent.com/venic ... ty2oled.sh -O /media/fat/Scripts/update_tty2oled.sh

...and it will install everything.
Thank you.

On the MiSTer Side, yes.
Run the installer, set your INI File Options, done.
See: https://github.com/venice1200/MiSTer_tt ... stallation

For the ESP to finish you (or someone) need to compile the Arduino Code into the ESP.
This is not fully documented, just a few information are in the Wiki.
See: https://github.com/venice1200/MiSTer_tt ... o-Settings

Second question, I am seeing an unholy amount of grounds that I need to solder together - can anyone advise any tips or tricks, I've daisychained grounds on larger projects before ( buttons for cabs ), but this is going to look like it's a smaller solution needed. Don't mind if I have to buy more parts - I'd like to just take a steer from those that have done this and have a good solution - learn from experts if I may.

Thank you.

I just solderred them all together.
See: viewtopic.php?p=24089#p24089

[Reg]

Thank you Vince.