Guru
Joined: 05/03/2018
Location: NetherlandsPosts: 5847
| Posted: 08:23am 09 Sep 2024 |
Peter,
Finally had time to look at the rocks14.bas issue again.
OPTION CPUSPEED 378000 works well with RP2040 pico and the B5 release
OPTION CPUSPEED 315000 locks up with RP2040 pico and the B5 release
OPTION CPUSPEED 252000 works well with RP2040 pico and the B5 release
OPTION CPUSPEED 157500 locks up with RP2040 pico and the B5 release
OPTION CPUSPEED 126000 works slow, but runs with RP2040 pico and the B5 release
There is something in the 157.5/315MHz setting that is different. It is not the speed.
I have commented out all the commands that relate to framebuffer F (so it does not initialize F and does not use it) and the program still crashes at 315MHz. I am puzzled.
The platform is "VGA design 2", also tested "VGA_Pico_Game" (Tom/Micks platform) and the issue shows with- or without PS2 keyboard for control.
Regards,
Volhout
EDIT: THIS IS CONSISTENT WITH THE RP2350 release B5. Also the RP2350 will not run the rocks14.bas program at cpuspeed 315000. And it runs fine at 252000.
P.S. I am beginning to like the speed advance of the 2350, and the 100% software backward compatibility to the pico. I may (in some of my applications) simply replace the pico boards with pico2 board. I wonder what this does in the Game*Mite. This may be a good opportunity to gain some speed. I may revisit PETSCII ROBOTS, and also fix the issue with MOVE OBJECT on the Game*Mite...
The thermal camera would really benefit from a 2350. The whole design is prepared for 256 or more colors, so in HDMI (with only 1 minor change) it would be significantly better.
.
Edited 2024-09-09 19:47 by Volhout