USBASP chinese cheap avrprogrammer need make ISP cable HELP!!!!!
  • hi! i buy a chinese cheap programer USBASP to flash the midipal.
    Olivier tells me that a guy who recommended him this
    cheap chinese programmer still in this forum...olivier says: he has built the programming cable
    and will be able to help you. I REALLY HOPE ;)
    the problem is that this programmer have another acronyme...
    my programmer says:
    1-RST TO RST
    2-3V3 TO VCC
    3-5V
    4-TXD TO MOSI??
    5-RXD TO MISO??
    6-GND TO GND

    DTR
    DSR
    RTS
    CTS
    SPD
    SPD/
    RI
    DCD

    is that correct TXD is MOSI and rxd is MISO? or which???
    also dont know is SPD and SPD/ are the CLOCK, two speeds of the CLOCK? if yes, which i need to use?

    i´m really starting with these....

    THANKS A LOT FOR THE HELP!!
  • Maybe posting somewhere a photo of your prorgrammer would help!

  • Sur. are you shure that it is Usbasp?
    Looks very similar to USB-TTL adapter. Does it have Atmega8 onboard?

  • FIRST THANKS A LOT FOR TAKING YOUR TIME HELPING HERE!!!
    REALLY APRECIATE THAT

    this was the recomendation from aur wizard ;)
    http://www.ebay.com/itm/370532286436?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649#ht_3523wt_902

    think is atmega8... dont shure
    they send me one that difers from this one...
    mine chip says SILABS
    CP2 102
    DCF 0EE
    1139+

    and is labeled like i tell you before...
    seems to be like this one
    http://i.ebayimg.com/00/$%28KGrHqUOKkUE3V,GknS3BN4z5Y2Kbw~~_35.JPG
    but without the crystal...

    THANKS AGAIN!!!
  • It has MISO and MOSI bin, where are the TXD and RXD pins you mention?

  • Silabs CP2102 is USB to UART bridge.
    VERY likely that they send you something like this

    There is no way to program blank AVR chip with this. You need this adapter.

  • hi!!!! cost me but finally get a decent picture...
    yes schrab is the same of your picture....
    https://mail-attachment.googleusercontent.com/attachment/u/0/?ui=2&ik=10368cd55b&view=att&th=1374c36904087233&attid=0.1&disp=inline&safe=1&zw&saduie=AG9B_P_efYCGb-wqOIBGQcsnRnLr&sadet=1337098685655&sads=PAlgI2sXqyiKm3BHrhPJicelc10

    can i make that adapter???
    can you tech me how???

    thanks a lot for all, delayed me to get a digital camera, only analog at home and no celularphone too
    THANKSALL!!!
  • IMHO you can’t because this is not USBASP.

  • You bought an USBASP but that sly chinese guys send you an USB-TTL?
    Just ask for refund/replacement!

  • thanks schrab!!!
    will do it right now!
  • And when you’ll receive true USBASP you’ll see pins marked as MISO/MOSI/SCK/RESET/VCC/GND on it, with which you’ll have no problems.
    Good luck and feel free to ask.
    Also you can buy this 10 to 6 pin adapter, but I reccomend something like this – it’s more universal.