From: Uwe Hermann Date: Sat, 28 Jul 2012 16:12:13 +0000 (+0200) Subject: Add AVR ISP dumps of an Atmel ATmega88. X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=b0963b34962da980cc9891f33247f77e8772510a;p=sigrok-dumps.git Add AVR ISP dumps of an Atmel ATmega88. --- diff --git a/avr_isp/atmega88/README b/avr_isp/atmega88/README new file mode 100644 index 0000000..9e9276d --- /dev/null +++ b/avr_isp/atmega88/README @@ -0,0 +1,41 @@ +------------------------------------------------------------------------------- +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 sigrok command line used was: + + sigrok-cli -d fx2lafw:samplerate=4mhz -p 1=MOSI,2=RST,3=SCK,4=MISO \ + -o --time