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ao-bitbang - Low-level cc1111 interface diagnostic tool

AO-BITBANG(1) General Commands Manual AO-BITBANG(1)

NAME

ao-bitbang - Low-level cc1111 interface diagnostic tool

SYNOPSIS

ao-bitbang

DESCRIPTION

ao-bitbang connects through a CP2103 usb-to-serial converter and uses the GPIO pins to communicate with the debug port on a cc1111 device. It provides raw access to the debug pins to help debug the lowest level communication path.

USAGE

ao-bitbang reads a sequence of bit manipulations from stdin, sends them to the device and reports status on stdout.
Each line on stdin should contain a single letter command for each of the three debug lines on the cc1111 -- clock, data and reset. Each bit can be in one of three states -- on (C, D or R), off (.) or tri-state (-) for input. Empty lines, or lines starting with '#' are ignored. Anything beyond the last bit in a line is also ignored. The bits must be listed in the correct order, and the 'on' values must match the desired bit.

EXAMPLE

Reset the target device
 # reset
 C D R
 C D R
 C D R
 C D R
    
Get Chip ID
 #
 # Debug mode - drive RESET_N low for two clock cycles
 #
 C D R
 . D .
 C D .
 . D .
 C D .
 . D R
# # GET_CHIP_ID
C . R 0 . . R C D R 1 . D R C D R 1 . D R C . R 0 . . R
C D R 1 . D R C . R 0 . . R C . R 0 . . R C . R 0 . . R
# # start reading again #
C D R . - R C - R . - R C - R . - R C - R . - R
C - R . - R C - R . - R C - R . - R C - R . - R
C - R . - R C - R . - R C - R . - R C - R . - R
C - R . - R C - R . - R C - R . - R C - R . - R
C D R

AUTHOR

Keith Packard
ao-bitbang