search

fdivitto / FabGL

ESP32 Display Controller (VGA, PAL/NTSC Color Composite, SSD1306, ST7789, ILI9341), PS/2 Mouse and Keyboard Controller, Graphics Library, Sound Engine, Game Engine and ANSI/VT Terminal
http://www.fabglib.org
Other
1.44k stars 213 forks source link

Multitasking CPM Plus - visible VGA screen corruption and screen crashes #248

Open homebrew-z80 opened 2 years ago

homebrew-z80 commented 2 years ago

With one console doing NULU and extraction of large LBR file, and second console doing minor tasks I have experienced some crashes and visible corruption on the active screen (e.g. memory leak?)

Also on one occasion I had an out of memory error, with just 2 or 3 consoles, where system should have enough memory for that.

sdcard, v1.08 fabgl, fabgl dev board v4 , esp32 huge app

fdivitto commented 2 years ago

how much free memory you have on both consoles (run "info" command)?

homebrew-z80 commented 2 years ago

I apologise for being very slow getting back to you.

I have tried for several days now to reproduce the VGA screen corruption error and have not been able to achieve it. I have used my ESP32 dev board v3 and my VGA32 v1.4

The visual corruption was of the nature of wrong video attributes for the characters on the top few lines of screen, showing as character blobs. I mention this because it is not a symptom of a poor vga connection.

In my first attempt when I reported the error I was only using up to 5 or 6 terminals, but have subsequently been successful with all 12, not actively running programs in all, but was running programs in 3 and switching through all 12.

I shall continue to use it with a broader range of CP/M programs and see if anything re-appears, and I am keen to move to primarily using a serial connection.

I wlll update the github bug report accordingly.

Thank you for such an interesting set of examples, excellent for a CP/M hobbyist.

Also, as I am in the UK, not supported by Tindie due to stupid Brexit, is there a method by which I can purchase your newer "FabGL ESP32 Board 16MB Flash 4 MB PSRAM - 3.3V I/O"?

Regards Richard

On Thu, 23 Jun 2022 at 15:30, Fabrizio Di Vittorio @.***> wrote:

how much free memory you have on both consoles (run "info" command)?

— Reply to this email directly, view it on GitHub https://github.com/fdivitto/FabGL/issues/248#issuecomment-1164483037, or unsubscribe https://github.com/notifications/unsubscribe-auth/AZGQLUW5UGSNU6RD66XX3GDVQRYI3ANCNFSM5ZJP7J4A . You are receiving this because you authored the thread.Message ID: @.***>

fdivitto commented 2 years ago

Memory for each session is dynamically allocated and sometimes it could be not enough to run all sessions. Please try to flash the Multitasking Sketch enabling PSRAM on VGA32 1.4: this should avoid some memory problems.

homebrew-z80 commented 1 year ago

Thanks, I will try that. Richard

On Thu, 30 Jun 2022 at 22:12, Fabrizio Di Vittorio @.***> wrote:

Memory for each session is dynamically allocated and sometimes it could be not enough to run all sessions. Please try to flash the Multitasking Sketch enabling PSRAM on VGA32 1.4: this should avoid some memory problems.

— Reply to this email directly, view it on GitHub https://github.com/fdivitto/FabGL/issues/248#issuecomment-1171683803, or unsubscribe https://github.com/notifications/unsubscribe-auth/AZGQLUUGQJJHLTEPVWTNTULVRYERZANCNFSM5ZJP7J4A . You are receiving this because you authored the thread.Message ID: @.***>