+SpiceWare Posted February 24, 2017 Share Posted February 24, 2017 Testing results as of March 5 at 10:42 AM CST Success total 73 3 - NTSC Heavy Sixer 7 - NTSC Light Sixer 1 - NTSC Sears Heavy Sixer 3 - NTSC Sears Sixer 16 - NTSC 4 switch Woody 1 - NTSC Sears 4 switch 7 - NTSC Vader 2 - NTSC Jr Rainbow 4 - NTSC Jr 2 - NTSC Sears Video Arcade II 6 - NTSC 7800 1 - NTSC 7800 dumper bios 4 - NTSC 7800 w/expansion port 1 - NTSC 5200 adapter 3 - NTSC Coleco Gemini 3 - PAL Light Sixer 1 - PAL 4 switch 1 - PAL Vader 5 - PAL Jr 2 - PAL 7800 Failure total 5 4 - NTSC Jr 1 - PAL 7800 As you may or may not be aware, we've been getting the 2600 to doing some really cool things using Bus Stuffing on the Harmony Cart: However, we've had a few people whose systems didn't work correctly with Bus Stuffing, causing the display to have vertical stripes, incorrect colors, etc: So we're trying to get a handle on what the problem is, whether or not it can be fixed, and if it can't be fixed how widespread the problem is in order to determine if its worth going forward with Bus Stuffing or not. To that end ZackAttack and I have created this test program: PF1_power2_20170221b.bin Which should output a display like this: If you have a Harmony Cart, please run the above program on as many systems as you can and report back the results. If the display looks different than the above then please post a photo as it will help us determine what's going on. When reporting include the type(s) of system, which for me would be: NTSC Light Sixer - success NTSC 7800 - success Also note that dirty contacts can cause issues with Bus Stuffing. So if you do see problems, try cleaning the contacts in your Harmony Cart, as well as your 2600's cartridge port (use Q-Tips soaked in rubbing alcohol) and then test again. When I last cleaned my Harmony Cart the results where this (unused Q-Tip on right for comparison): To clean your cartridge port try flattening the Q-Tip with a pair of pliers before soaking them in alcohol, then insert/remove the flattened end a few times in each position of the cartridge port (unused Q-Tip on bottom for comparison): I'll keep the top of this post updated with a running tally. 3 Quote Link to comment Share on other sites More sharing options...
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