Hello Jan, Jan Kromhout writes:
> Hi, > > Flashing the Arduino Uno is giving no problems. > > Try to flash the Leonardo. > I’m using the Pololu AVR programmer v2.1 > This is my command. > > MacBook-Pro-van-Jan-10:avrdude jankromhout$ avrdude -p m32u4 -c avrispv2 -P > /dev/tty.usbmodem00230362 -U efuse:w:0xFF:m -U hfuse:w:0xD9:m -U > lfuse:w:0xFF:m -U flash:w:leonardo.hex:i -U eeprom:w:leonardo.eep.hex:i > > It isn’t working > Can someone help me with this problem. looking into old files of mine ... 2013-05-01 I have not succeeded with a leonardo either. Attaching did create a serial interface (/dev/ttyACM0), however, after erasing leonardo's flash, this disappeared. So maybe usb connection is not through a FTDI chip? THIS is a highly questionable idea, be warned. But might be worth to check the schematics. https://www.arduino.cc/en/Main/Arduino_BoardLeonardo https://www.arduino.cc/en/uploads/Main/arduino-leonardo-schematic_3b.pdf There is no FTDI, as far as I can see, however, how erasing the atmega32u4 flash results in not responding to the ISP programmer, is not obvious to me. I succeeded in erasing once. Nothing after that. Please note that the _atmega_32_u4_ is a quite different beast from the atmega_328p. So fuse settings would be another candidate to check. I didn't find my leonardo just now ... so I can't play with it. Cheers, Erich -- May the Forth be with you ... _______________________________________________ Amforth-devel mailing list for http://amforth.sf.net/ Amforth-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/amforth-devel
