Memory Error 293 93

Question

Memory Error 293 93

Airrr17 opened this issue 6 years ago · comments

I have both versions of boards with 64K and 128K and both of them makes me the same error.
-Memory Error
-293
-93
after touching the screen:
-28
and for second time:
Memory Error
5B00
416 (415 sometimes)
On third touching appears list of files, even trying to load, but crashes.

Does it means my LCD's memory are corrupted?

Thank you!

Samsonov Dima · Answer 1 · Tue Sep 11 2018 06:33:14 GMT+0800 (China Standard Time)

"Does it means my LCD's memory are corrupted?"
Seems like problem with read-back values from display.

1 Did You check 5/3.3 volt jumper on the LCD board???
2 Check connections - it uses common MISO,MOSI,SCKL for touch,sd and lcd
3 Try to reduce system freq

Airrr17 · Answer 2 · Mon Sep 17 2018 05:34:09 GMT+0800 (China Standard Time)

After replacing dupont wires with soldered ones got much better:
OK
FFFFFFFF
92
-touch
28 (27)
-touch
OK
FFFFFFFF
413 (412)
Touching now shows filelist correctly, but can't load nothing.
Here is screenshoot of TETRIS2 game.
Sorry for the quality. Here is "TETR" (Я) three times or the right half of screen and "IS2" on the left.

Can you help please? :) thank you.

Samsonov Dima · Answer 3 · Thu Sep 20 2018 23:57:58 GMT+0800 (China Standard Time)

Send me Your game to my mail (sdima1357@gmail.com). I will try to fix it

Airrr17 · Answer 4 · Fri Sep 21 2018 21:33:36 GMT+0800 (China Standard Time)

It's not about this game especially. (TETRIS2.Z80)
every files z80 and tap are loading the similar way.
arkanoid, boulder dash, saboteur2, dizzy...
Here is a better screenshoot:

Samsonov Dima · Answer 5 · Sat Sep 22 2018 06:09:04 GMT+0800 (China Standard Time)

Format "tap" is not supported in this version from sdio. Format "z80" has a lot of modifications,without real file i can't try to debug it. Send me Your problematic file by email and i will try it, in some free time. I'am working on the next version, it can take some time.

Samsonov Dima · Answer 6 · Sun Sep 23 2018 04:03:10 GMT+0800 (China Standard Time)

1 This game is for specci 128K (
byte 34 in z80 file is 3
from spec z80 file https://www.worldofspectrum.org/faq/reference/z80format.htm

Value: Meaning in v2 Meaning in v3
-----------------------------------------------------
0 48k 48k
1 48k + If.1 48k + If.1
2 SamRam SamRam
3 128k 48k + M.G.T.
4 128k + If.1 128k
5 - 128k + If.1
6 - 128k + M.G.T.

But anyway without sd card You have to see:

"@ 1982 Sinclair Research Ltd " on white background in black frame.

If You don't see it You have problem with stability. Try to reduce system freq by replace in main.c
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL14; to

RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9; or something between 9 and 14

Airrr17 · Answer 7 · Mon Sep 24 2018 04:28:38 GMT+0800 (China Standard Time)

Thank you! I got it :) Now everything is working as it should! Great!