Tims Retro Corner | Let's Turn a Commodore 64 Into a Retro Chip Tester @TimsRetroCorner | Uploaded July 2024 | Updated October 2024, 7 hours ago.
All the PCBs used in this video came from pcbway.com Thanks to them for sponsoring this video.
The Commodore 64 is so much more than a games machine.
I recently bought a batch of 6532 RIOT chips to use in another project. (RIOT - RAM I/O Timer. Think of it as similar to the C64's 6526 CIA, but with added RAM), and needed a way to test them. Not being able to afford the likes of the Retro Chip Tester Pro. Surely I could design a cartridge to take a 6532, and then write a program to test it? In BASIC even?
Watch and find out!
Big shout of thanks to André Fachat, John Riney, and other on Big Herd's Discord, for help with this project. Check out André's you tube channel: @8bittimes
C64 cartridge proto board: pcbway.com/project/shareproject/Commodore_64_Expansion_Port_Cartridge_Project_Development_PCB_85ba470a.html
Check out these channels:
8-Bit Retro Refix: / @8BitRetroReFix
Captain Commodore: / @CaptainCommodore
Retro4u: / @Retro4u
Josip Retro Bits: / @JosipRetroBits
Retro Krazy: / @RetroKrazy
8bitsinthebasement: / @8bitsinthebasement
Jess B's Tech Department / @techdept
If you'd like to help support this channel, please check out my Patreon. You can also make a one-off donation or use the channel Super Thanks.
Patreon: patreon.com/timsretrocorner
Donate: paypal.com/donate/?hosted_button_id=DC2YUGZDYKHRN
Follow me on Mastodon: https://retrorewind.social/@trc
00:00 - Introduction
00:55 - What Is a 6532?
03:15 - Using A Cartridge
06:27 - 6532 Description
18:29 - FIRST POWER-ON TEST
22:21 - Put a Chip In It
29:36 - PCBs
32:30 - Yellow PCB Test
35:51 - It’s Dead, Jim!
39:26 - TIMER
51:07 - Scoping the R/W Line
52:27 - Read/Write Buffer
54:46 - Re-Checking the Flip-Flop
57:30 - One Last Thing
All the PCBs used in this video came from pcbway.com Thanks to them for sponsoring this video.
The Commodore 64 is so much more than a games machine.
I recently bought a batch of 6532 RIOT chips to use in another project. (RIOT - RAM I/O Timer. Think of it as similar to the C64's 6526 CIA, but with added RAM), and needed a way to test them. Not being able to afford the likes of the Retro Chip Tester Pro. Surely I could design a cartridge to take a 6532, and then write a program to test it? In BASIC even?
Watch and find out!
Big shout of thanks to André Fachat, John Riney, and other on Big Herd's Discord, for help with this project. Check out André's you tube channel: @8bittimes
C64 cartridge proto board: pcbway.com/project/shareproject/Commodore_64_Expansion_Port_Cartridge_Project_Development_PCB_85ba470a.html
Check out these channels:
8-Bit Retro Refix: / @8BitRetroReFix
Captain Commodore: / @CaptainCommodore
Retro4u: / @Retro4u
Josip Retro Bits: / @JosipRetroBits
Retro Krazy: / @RetroKrazy
8bitsinthebasement: / @8bitsinthebasement
Jess B's Tech Department / @techdept
If you'd like to help support this channel, please check out my Patreon. You can also make a one-off donation or use the channel Super Thanks.
Patreon: patreon.com/timsretrocorner
Donate: paypal.com/donate/?hosted_button_id=DC2YUGZDYKHRN
Follow me on Mastodon: https://retrorewind.social/@trc
00:00 - Introduction
00:55 - What Is a 6532?
03:15 - Using A Cartridge
06:27 - 6532 Description
18:29 - FIRST POWER-ON TEST
22:21 - Put a Chip In It
29:36 - PCBs
32:30 - Yellow PCB Test
35:51 - It’s Dead, Jim!
39:26 - TIMER
51:07 - Scoping the R/W Line
52:27 - Read/Write Buffer
54:46 - Re-Checking the Flip-Flop
57:30 - One Last Thing
