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-------------------------------------------------------------------------------
AVR ISP / Atmel ATmega88
-------------------------------------------------------------------------------
This is a set of example captures of the AVR in-system programming (ISP)
protocol.
The device used for ISP was a USBprog with AVRISP mkII compatible firmware.
The target was a board with an Atmel ATmega88 chip.
The PC software used for controlling the programmer was avrdude 5.11.1.
Details:
http://www.atmel.com/images/doc0943.pdf ("AVR910: In-System Programming")
http://www.usbprog.org
http://www.atmel.com/devices/atmega88.aspx
http://www.nongnu.org/avrdude/
Logic analyzer setup
--------------------
The logic analyzer used was a Saleae Logic (at 4MHz):
Probe AVR ISP header
-------------------------
1 (black) MOSI
2 (brown) RST
3 (red) SCK
4 (orange) MISO
Data
----
The following avrdude commands were captured:
avrdude -c avrisp2 -P usb -p m88 -vvv
avrdude -c avrisp2 -P usb -p m88 -e -vvv
avrdude -c avrisp2 -P usb -p m88 -U lfuse:r:lfuse.hex:i -vvv
avrdude -c avrisp2 -P usb -p m88 -U flash:r:empty.dd:r -vvv
The respective avrdude output is available in avrdude_log*.txt and lfuse.hex.
The sigrok command line used was:
sigrok-cli -d fx2lafw:samplerate=4mhz -p 1=MOSI,2=RST,3=SCK,4=MISO \
-o <file> --time <time>
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