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[avrdude-dev] Using a FT232HL in slow bitbang mode


From: Ing. Daniel Rozsnyó
Subject: [avrdude-dev] Using a FT232HL in slow bitbang mode
Date: Thu, 06 Jun 2013 21:44:14 +0200
User-agent: Mozilla/5.0 (X11; Linux i686; rv:16.0) Gecko/20121026 Thunderbird/16.0.2

Hi,
how can I make use of pins AC3~AC7 on a FT232HL for bitbang programming an AVR?

I naturally tried to count the pins in order AD0..AD7,AC0-AC9, but avrdude is complaining:


$ avrdude -p atmega32 -c prob-hand -P usb -b 9600
avrdude: BUFF: Following pins are not valid pins for this function: 16
avrdude: RESET: Following pins are not valid pins for this function: 12
avrdude: SCK: Following pins are not valid pins for this function: 13
avrdude: MOSI: Following pins are not valid pins for this function: 15
avrdude: MISO: Following pins are not valid pins for this function: 14
         Pin assignment  : 0..7 = DBUS0..7
           VCC     =  (not used)
           BUFF    =  16
           RESET   =  12
           SCK     =  13
           MOSI    =  15
           MISO    =  14
           ERR LED =  (not used)
           RDY LED =  (not used)
           PGM LED =  (not used)
           VFY LED =  (not used)

avrdude done.  Thank you.


CONFIG:


programmer
  id    = "prob-hand";
  type  = "ftdi_syncbb";
  connection_type = usb;
  usbvid = 0x0403;
  usbpid = 0x6014;
  reset = 12;
  sck   = 13;
  miso  = 14;
  mosi  = 15;
  buff  = 16;
;


Is there a trick or the support is just not there?

Thanks,

Daniel



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