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36 lines
741 B
36 lines
741 B
guide to dfu programing using a usbtiny to a atmega32u2 |
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1. download newest winavr and install |
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2. modify avrdude.conf in the bin directory under AT90USB162 |
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from this: |
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memory "flash" |
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paged = yes; |
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size = 16384; |
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page_size = 128; |
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num_pages = 128; |
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into this: |
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memory "flash" |
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paged = yes; |
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size = 32768; |
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page_size = 128; |
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num_pages = 256; |
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i also changed |
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desc = "atmega32u2"; |
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update your makefile to point to the correct programing device. |
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fix this |
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AVRDUDE_PROGRAMMER = usbtiny |
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AVRDUDE_PORT = usb |
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now run |
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make |
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make program. |
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i used a usbtiny from sparkfun. |
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or manualy |
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avrdude -p atmega32u2 -F -P usb -c usbtiny -v -U flash:w:Arduino-usbdfu.hex -U efuse:w:0xF4:m -U hfuse:w:0xD9:m -U lfuse:w:0xFF:m -U lock:w:0x0F:m |