USBtiny woes.

je33

je33

I've been trying to get an AVR USBtiny in circuit programmer running on my
Code: 
FreeBSD tsunami.lan 9.1-PRERELEASE FreeBSD 9.1-PRERELEASE #0: Mon Sep 10 15:15:10 PDT 2012     root@tsunami.lan:/usr/obj/usr/src/sys/LOCAL  amd64
box, without any luck. I've verified that all the USB serial drivers as well as ucom are loaded/compiled in. The kernel is actually a GENERIC config called from LOCAL config which just squashes debug symbols after GENERIC is read.

The relevant line from usbconfig reads:
Code: 
ugen7.2: <USBtiny vendor 0x1781> at usbus7, cfg=0 md=HOST spd=LOW (1.5Mbps) pwr=ON

About the only thing I'm able to locate with Google is that Amtel's USBasp in circuit programmer works with FreeBSD however, no details supplied. Anyone want to share a success story and formula for the USBtiny? Or is USBtiny a dead end: Get the Amtel USBasp.
 
Hi Warren: The upshot of the work to present consists of loading all the USB facilities/drivers from the command line to verrify that it get
Code: 
kldload: can't load uvscom: File exists
. Also, checked for creation of USB serial port /dev/cuaU0 with no joy.

When I # grep 0x1781 /etc/devd/usb.conf nothing is found.

Lots of searching and that's pretty much it.
 
Back up a second. What does this show:
% usbconfig -d 1.2 dump_device_desc

Replace the 1.2 with the address it gets in your system.
 
I get this:
Code: 
# usbconfig -d 7.2 dump_device_desc
ugen7.2: <USBtiny vendor 0x1781> at usbus7, cfg=0 md=HOST spd=LOW (1.5Mbps) pwr=ON

  bLength = 0x0012 
  bDescriptorType = 0x0001 
  bcdUSB = 0x0101 
  bDeviceClass = 0x00ff 
  bDeviceSubClass = 0x0000 
  bDeviceProtocol = 0x0000 
  bMaxPacketSize0 = 0x0008 
  idVendor = 0x1781 
  idProduct = 0x0c9f 
  bcdDevice = 0x0104 
  iManufacturer = 0x0000  <no string>
  iProduct = 0x0002  <USBtiny>
  iSerialNumber = 0x0000  <no string>
  bNumConfigurations = 0x0001
 
According to /usr/share/misc/usbdevs, that vendor ID is "Metageek". More importantly, the product ID is not present and would need to be added.

Software-wise, I'm not sure whether it needs a module that specifically recognizes it as a serial device. If USBasp does, it's built into my kernel.

See the comments at https://www.sparkfun.com/products/9231? about making it work on non-Windows systems. That's a different device, but based on the same design.
 
As suggested in the SparkFun link you provided, I inserted a USB hub between the programmer and my box but, my box still did not create a /dev/cuaUx device.

However, I was able to get avrdude to talk to the programmer using it's usb address:
Code: 
# avrdude -p m328P -P usb:7:2 -c usbtiny -vvvv

avrdude: Version 5.11, compiled on Jan 15 2012 at 13:12:25
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2009 Joerg Wunsch

         System wide configuration file is "/usr/local/etc/avrdude.conf"
         User configuration file is "/root/.avrduderc"

         Using Port                    : usb:7:2
         Using Programmer              : usbtiny
avrdude: usbdev_open(): Found USBtinyISP, bus:device: /dev/usb:/dev/ugen7.2
avrdude: Error: Could not find USBtiny device (0x1781/0xc9f)

avrdude done.  Thank you.
Not sure what the error exactly means so I tried duplicating the usbtiny entry in /usr/local/etc/avrdude.conf and changing the programmer id to usbtinyisp.
Code: 
programmer
  id    = "usbtiny";
  desc  = "USBtiny simple USB programmer, http://www.ladyada.net/make/usbtinyisp/";
  type  = usbtiny;
;

programmer
  id    = "usbtinyisp";
  desc  = "USBtiny simple USB programmer, http://www.ladyada.net/make/usbtinyisp/";
  type  = usbtiny;
;
Which yielded:
Code: 
# avrdude -p m328P -P usb:7:2 -c usbtinyisp -vvvv

avrdude: Version 5.11, compiled on Jan 15 2012 at 13:12:25
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2009 Joerg Wunsch

         System wide configuration file is "/usr/local/etc/avrdude.conf"
         User configuration file is "/root/.avrduderc"

         Using Port                    : usb:7:2
         Using Programmer              : usbtinyisp
avrdude: usbdev_open(): Found USBtinyISP, bus:device: /dev/usb:/dev/ugen7.2
avrdude: Error: Could not find USBtiny device (0x1781/0xc9f)

avrdude done.  Thank you.
Same output from my initial test suggesting, to me, that there might be a protocol difference between the two programmers?
 
Looks like I may have this whipped. Reading through the ladyada site I found a step by step procedure to flash the Arduino boot loader into one of the Arduino boards. Tried it and it works. It seems that my ~/.arduino/preferences.txt had serial.port= set to /dev/com1 deleting that and leaving an empty field solved the problem.

It's the fix I needed anyway since now I can flash to chip to test from Arduino IDE.

Thank for you interest and help with this Warren.
 
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