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diff --git a/avr_pdi/atxmega128a1/README b/avr_pdi/atxmega128a1/README new file mode 100644 index 0000000..0a11434 --- /dev/null +++ b/avr_pdi/atxmega128a1/README @@ -0,0 +1,42 @@ +------------------------------------------------------------------------------- +AVR PDI / Atmel ATxmega128A1 +------------------------------------------------------------------------------- + +These are example captures of the Atmel Program and Debug Interface (PDI). + +The programmer is Atmel's JTAG ICE III and avrdude 6.0.1. The target device +is an ATxmega128A1 (Atmel's Xplained eval board). + + +Logic analyzer setup +-------------------- + +The logic analyzer used was an Asix Sigma2 (at 10MHz): + + Probe Signal + ----------------------- + 1 RESET / PDI_CLK + 2 PDI_DATA + + +Data +---- + +The following activities were captured: + +- Identify a target device: + avrdude -c jtag3pdi -p x128a1 + +- Program (write) a blinkenlight firmware: + avrdude -c jtag3pdi -p x128a1 -Uflash:w:blinky.hex + +- Verify (read back) the blinkenlight firmware: + avrdude -c jtag3pdi -p x128a1 -Uflash:v:blinky.hex + +The protocol decoder can extract data when used like this: + +- Get the bytes which form the PDI requests and responses: + sigrok-cli -i atxmega128a1-pdi-identify.sr -P avr_pdi -B avr_pdi=bytes | hexdump -Cv + +- Get the interpreted PDI instructions and their data: + sigrok-cli -i atxmega128a1-pdi-identify.sr -P avr_pdi -A avr_pdi=cmd-data |