(DIY) C64iSTANBUL
TURKEY • + Follow
Mar 01,2021
11,722 views
end-flag

SD2iEC with BROWSER CARTRIDGE for COMMODORE 64

SD2iEC (Commodore 64 disk drive emulator) with File Browser Software in Cartridge. For loading programs easier and faster.
11722
34
27
10.00 (2)
Published: Mar 01,2021
Add to cart

*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.

Copy this HTML into your page to embed a link to order this shared project
Copy
Copyright Info

Attribution-ShareAlike (CC BY-SA) License

Read More⇒
Under the Attribution-ShareAlike (CC BY-SA) License.
gift
Smart Soldering Iron TS101-BC2
BUY NOW
gift
Raspberry Pi 5 7 Inch Touch Screen IPS 1024x600 HD LCD HDMI-compatible Display for RPI 4B 3B+ OPI 5 AIDA64 PC Secondary Screen（Without Speaker）
BUY NOW
gift
ESP32-S3 4.3inch Capacitive Touch Display Development Board, 800×480, 5-point Touch, 32-bit LX7 Dual-core Processor
BUY NOW
gift
MHP50-B5 Mini Hot Plate Preheater
BUY NOW
gift
Smart Soldering Iron TS101-BC2
BUY NOW
gift
Raspberry Pi 5 7 Inch Touch Screen IPS 1024x600 HD LCD HDMI-compatible Display for RPI 4B 3B+ OPI 5 AIDA64 PC Secondary Screen（Without Speaker）
BUY NOW
Topic
DIY Electronics
Computers & USB
Programmable Logic Projects
commodore64 sd card loader commodore64 loader sd2iec pcb c64 disk drive emulator sd2iec with browser sd2iec and browser c64 fdd emulator pcb c64 floppy emulator sd2iec file browser SD2iEC with BROWSER CARTRIDGE
  • Comments(27)
  • Likes(34)
Upload photo
You can only upload 5 files in total. Each file cannot exceed 2MB. Supports JPG, JPEG, GIF, PNG, BMP
0 / 10000

  • https://manuals.plus/pcbway/sd2iec-64-disk-drive-emulator-manual.pdf

    Jul 05,20240 Comments
    Reply

  • Hi. Does the SD cart require any specific preparation? like having some dedicated files on it? I have a problem whenever I put any SD card, red LED is turning off and drive is not visible. Maybe it is my build, but I replaced all the chips and SD card reader with the same result. I suspect maybe my SD cards are too big (16GB) or lack some mandatory files which caused the cartridge to hang.

    Jul 26,20232 Comments
    Enver Aydın Tunçalp 2023-07-26 21:12:43Reply

    Hello, SD card does not require any preparations, you may indeed try a smaller(4/8 gig) sd card. Also 1. Double check IEC connection: cable/socket I've had a similiar problem with my SD2IEC, it turned out one of the clips(tunic) came loose on jst connector side of iec cable. 2. Double check if any excessive solder or solder residue(balls etc) is shorting anything. 3. Did you correctly set fuses or get any error while programming Atmega microcontroller?

    Mateusz Mateusz 2023-07-26 22:06:45Reply
    Reply@ Enver Aydın Tunçalp：

    Thanks a lot for your tips Enver. It was incorrect fuse config while programming :) It works now even with 16GB card.

    Reply

  • Hi! I’m about to build this project, but I’m a little confused about the file browser (FB64 in my case). Does this go on the SD card or on the eeprom? I’m assuming that the eeprom is mainly for storing programs, but isn’t that what the SD card does too? So what is the primary function of the eeprom?

    Oct 21,20222 Comments
    (DIY) C64iSTANBUL 2022-10-21 23:11:36Reply

    This cartridge has been prepared to facilitate the work of those who do not know how to LOAD programs on Commodore64. I prepared an eprom image for the cartridge with browsers in it, the browser can be selected from the menu that appears when the computer is turned on and it works automatically. Thus, it is possible to LOAD games on commodore64 without entering any extra commands on it. The Idea of this project is; loading programs easier and faster. Some browsers (like File Browser 1K) loads faster than Epyx Fast Load cartridge. And with using a browser software you do not need to know how to use SD2iEC, you just select a file from the menu and then Press ENTER ;) Very Easy! Thank you for asking.

    Engineer 2022-10-22 22:57:32Reply

    Thanks for the reply, I feel stupid now but there was a reason for my confusion. Anyway, it is now built and working, with the exception of the tactile switches, which haven’t arrived yet. My question now is, what are the 2 jumpers at top left (labelled 8/9/10/11) for?

    Reply

  • Hi! Nice layout, would be, but a couple of design flaws. First of all - the SD card voltage. You are using the Lars Pontopiddan schematic, but you didn't pay any attention to proper interfacing - the SD card is getting 5V from the Atmega, which eventually will damage the SD card. I'm not talking about the SD card voltage regulator, I'm talking about the lines interfacing the microcontroller. Level conversion HAS TO BE DONE, either on the IEC side, like in the MMC2IEC with MOSFETS, or at least at the atmega side, by passive voltage dividers. Also, you didn't implement the card detection and card write-protection, just connected them to ground, which will work, but affect the functionality. Too bad I noticed everything after ordering the PCB, now trace cutting is inevitable.

    Apr 17,20215 Comments
    (DIY) C64iSTANBUL 2021-04-17 04:23:32Reply

    Hello Viktor Molnar, This SD2iEC schematic is not my design, I only design the PCB, many people are using this SD2iEC schematics and sharing on the internet. I am using this schematics design for a long time, None of my SD Card have been damaged or there is not any feedback about damaged SD Card reported to me. Thank you.

    Enver Aydın Tunçalp 2021-04-18 00:26:15Reply

    @C64ISTANBUL, i built myself almost every sd2iec you've shared(except +fast load combo, gonna build it next). I can confirm i'm using same sd card like for years, couldn't managed to damaged it yet :P Also i know people using same schematics to build different sd2iec designs themselves and using it more than 4-5 years without any problem neither on their computers nor on their sd cards. Thank you, keep up the good work.

    Viktor Molnar 2021-05-04 19:32:18Reply
    Reply@ (DIY) C64iSTANBUL：

    But you didn't actually implement the sd2iec schematic. The original 5V sd2iec has resistor voltage dividers on the CS, MOSI and CLK lines, limiting the signal swing of these lines fed into the SD card (R1-R6 here -> http://www.pitsch.de/stuff/mmc2iec/MMC2IEC_antabaka_LarsP_neu.gif). You just assumed, that if the SD card module has it's own 3,3V regulator - it automatically handles the level transition too (this particular type of "arduino" module). But it does not. This module simply breaks out the SD card directly to pins, it only has 10K "pull-ups" to 3.3v, that don't play any role in our case. The fact, that "it works for you", and others too - does not change anything with regards, that the connection as is - abuses the SD card and operates it well outside of safe operation conditions. Most probably the excessive overvoltage current is being dropped across the internal protection diodes of your SD card, and even if the card somehow tolerates it (yes, I have even seen SD cards operating from 5V), but it is certainly a design flaw - and If not corrected, I would love at least to see a mention about it in the description. Also, I would love to see a mention, that this schematic does not implement the SD card detection, as well as the SD card write protection check functionality of SD2IEC. Isn't that fair enough?

    (DIY) C64iSTANBUL 2021-05-04 23:33:18Reply
    Reply@ Enver Aydın Tunçalp：

    Thank You.

    Gary Dion 2022-08-30 22:06:45Reply

    @Viktor Molnar, you are 100% correct. Thank you for pointing out this board applies 5V IO to the SD card. You just saved me from making the mistake of choosing this design. There is now a newer micro-SD design which uses a daughter card which has the 3.3V-to-5V level converter located on it. So it will not risk damaging the micro-SD card. Good catch, sir! Thanks again.

    Reply

  • MICRO-SD version of this project is in this link; https://www.pcbway.com/project/shareproject/SD2iEC_with_BROWSER_CARTRIDGE_MICRO_SD_for_COMMODORE_64_009fb989.html

    Mar 29,20220 Comments
    Reply

  • Hi. May I use ATMEGA644P (including "P" at the ond of name string) ? I know that there are two main types: Atmega 644 and 644P. I'm nut sure if available / compiled firmware could work with both mentioned IC's. Thank you for your feedback. Mariusz

    Dec 22,20211 Comments
    (DIY) C64iSTANBUL 2021-12-22 08:10:39Reply

    Hello Mariusz, ATMEGA644PA works, you may use ATMEGA644PA . Thank you for asking

    Reply

  • I really like this idea, but it looks like it only supports the 27C512. Why not the larger 27C040?

    Mar 27,20212 Comments
    (DIY) C64iSTANBUL 2021-03-27 12:10:10Reply

    The reason why 27c512 is preferred is; not to confuse people with too many programs and to keep it simpler to use. Thank you very much.

    Mariusz Ciszewski 2021-10-26 23:22:34Reply

    Possible to download gerbers or native files?

    Reply

  • This is my third sd2iec, works like a charm. Once i get another atmega644p, fast load combo cart will be fourth :P Thank you for sharing.

    Apr 17,20212 Comments
    (DIY) C64iSTANBUL 2021-04-18 00:12:09Reply

    Hello Enver Aydın Tunçalp, thank you for comment.:)

    (DIY) C64iSTANBUL 2021-05-17 21:16:48Reply

    If you have any problems, please feel free to ask.

    Reply

  • Very nice cartridge, Sinan!! It works great!! Thank you so much for sharing! And thank you for helping me to fix the problem I had with the card! (my bad offcourse! ) :-)

    Apr 21,20212 Comments
    (DIY) C64iSTANBUL 2021-04-21 03:10:07Reply

    You're welcome, and thank you for comment.

    (DIY) C64iSTANBUL 2021-05-17 21:16:22Reply

    If you have any problems, please feel free to ask.

    Reply

  • Hello, Nice project. Do you also provide the gerber files for this project?

    Apr 26,20211 Comments
    (DIY) C64iSTANBUL 2021-04-26 01:09:00Reply

    Hello, I do not provide the gerber files. Thank you.

    Reply
VOTING 2 votes
VOTE NOW !
  • 2 USER VOTES
10.00
  • YOUR VOTE 0.00 0.00
Meyer
Engineer
  • 10
    design
  • 10
    usability
  • 10
    creativity
  • 10
    content
10.00
Turay
Engineer
  • 10
    design
  • 10
    usability
  • 10
    creativity
  • 10
    content
10.00

More by (DIY) C64iSTANBUL

You may also like