Adding USB to SuperED and ED64

Discussion in 'Everdrive 64' started by Dandy_Sephy, Sep 18, 2011.

  1. Dandy_Sephy

    Dandy_Sephy Active Member

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    I have an ED64 (V1.01 09.05.11) a SuperED (V1.6 20.07.11), both without USB. I bought some USB connectors and have soldered them on, but looking at the SED thread it seems I need some additional components. Could someone please explain what capacitors and resistors are needed and where they need to go?
     
  2. StoneAgeGamer

    StoneAgeGamer Intrepid Member

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    Before doing this you may want to consider why you even need it. You cannot flash firmware over USB.

    Really unless you are developing a game for these systems the USB does not offer much.

    I am not telling you not to do it of course, but I think there's a lot of misconception that you can flash firmware over USB. This is not the case.
     
  3. Dandy_Sephy

    Dandy_Sephy Active Member

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    I have the programmer for firmware, but thanks for reiterating the info.
     
    Last edited: Sep 18, 2011
  4. SubDrag

    SubDrag Rapidly Rising Member

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    So what does the USB offer? And how do you use it.
     
  5. Calpis

    Calpis Champion of the Forum

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    Common sense would suggest non-USB Everdrives ship without the FTDI chip/microcontroller/whatever populated.
     
  6. Dandy_Sephy

    Dandy_Sephy Active Member

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    Yes, and the required chip is listed in the thread (I forget which it is right now). Thats the easy part hence why I've only asked about the caps and resisters krikzz mentioned
     
  7. Calpis

    Calpis Champion of the Forum

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    Did you look at the data sheet? It will probably have an app note. Or post a picture and it might be clear.
     
  8. KRIKzz

    KRIKzz Well Known Member

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    need ft245RL ic, 2x 0.1 capacitors, 1x 100ohm resistor and few 10k resistors. 24ohm resisors on the n64 cart near to usb you can replace by jumpers

    n64 cart photo http://krikzz.com/res/ed64/ed64_t.jpg
    i have no photo of snes cart with usb
     
  9. Dandy_Sephy

    Dandy_Sephy Active Member

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  10. bertobp

    bertobp Rising Member

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    :shrug:
     
  11. alexh

    alexh Member

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    I believe it just adds the ability to download files into the flash memory from your PC. So you can code, compile, transfer and run very quickly without having to remove the SD card etc.

    I imagine it was added so the developer of the cartridge could write the cartridge OS?

    Possibly some debugging capability??
     
    Last edited: Sep 21, 2011
  12. KRIKzz

    KRIKzz Well Known Member

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    alexh you right, usb port need for development. almost all carts have usb because i need usb for OS debug. almost impossible to develop OS without quick upload ability. in case of genesis cart MAX2 chip have not enough IO pins, so there is no usb. for genesis i use small usb adapter which connected to joy port 2
     
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