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authorUwe Hermann <uwe@hermann-uwe.de>2013-08-14 09:22:42 +0200
committerUwe Hermann <uwe@hermann-uwe.de>2013-08-14 09:22:42 +0200
commitf768de429849ee61c60ba6db8f21145faf818736 (patch)
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--------------------------------------------------------------------------------
-Arbitrary LPC (low pin count) traffic
--------------------------------------------------------------------------------
-
-These captures are the identification and programming with random data of a LPC
-(low pin count) interface flash chip. The LPC bus is emulated with an ARM
-Cortex-M microcontroller, and does not run at the standard 33MHz clock. Although
-the clock contains significant jitter, the connected chips respond and
-communicate as expected.
-
-Details:
-http://en.wikipedia.org/wiki/Low_Pin_Count
-http://www.intel.com/design/chipsets/industry/25128901.pdf
-
-
-Hardware Setup
---------------
-
-A VultureProg daughterboard was attached to a TI Stellaris Launcphad board. A
-SST49LF080A flash chip was installed in the PLCC socket. The core clock of the
-CPU was reduced from 80MHz to 16MHz to permit the logic analyzer to capture all
-details of the waveform.
-
-Hardware: http://github.com/mrnuke/vultureprog-hardware
-Firmware + SW: http://git.qiprog.org/
-
-The logic analyzer used was a MCU123 USBee AX Pro clone. It was connected to the
-"LPC probe" header of the VultureProg daughterboard. All captures were run at
-24MHz sampling rate.
-
-Hookup
-------
-P0: LAD0
-P1: LAD1
-P2: LAD2
-P3: LAD3
-P4: LCLK
-P5: #LFRAME
-P6: NC
-P7: NC
-
-Data
-----
-
-- lpc_vultureprog.sr
- VultureProg BIOS chip programmer programming random data to a SST49LF080A.
- The bus clock was intentionally reduced to allow capture with an FX2-based
- logic analyzer.
-
-This data is released into the public domain.