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ben-wpan/cntr/fw/common/io.h
Werner Almesberger 4e568b0f1a Adapted firmware for V2 hardware.
- cntr/cntr.h: new file for variables shared among cntr.c and ep0.c
- cntr/cntr.c (cntr), cntr/ep0.c (cntr): moved to cntr/cntr.h
- fw/common/io.h (VERSION_ID): we can detect the board version by reading
  P2_1 (GND on version 1, open on version 2)
- cntr/cntr.c (init_io): added board version detection, board-specific
  GPIO initialization, and a LED blink to indicate version 2
- cntr/cntr.h (hw_type), cntr/cntr.c (hw_type), cntr/ep0.c (my_setup),
  common/config.h (HW_TYPE): the hardware type is now determined at run
  time
2010-11-03 12:20:13 -03:00

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C

/*
* common/io.h - I/O pin assignment
*
* Written 2010 by Werner Almesberger
* Copyright 2010 Werner Almesberger
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef IO_H
#define IO_H
/* Diagnostic LED */
#define LEDv1 P1_3
#define LEDv2 P2_2
/* Probe input */
#define PROBE_T0 P1_0
#define PROBE_ECI P1_1
#define PROBE_INT0 P0_7
/*
* Probe termination
*
* - v1: 100 kOhm termination (not very useful)
* - v2: pull-up for input amplifier
*/
#define PROBE_TERM P1_2
/*
* Version ID
*
* In version 1, P2_1 is used to provide ground to the input side. In version
* 2, we use a ground place for this and P2_1 is unconnected. We can therefore
* use it to identify the hardware version.
*/
#define VERSION_ID P2_1
#endif /* !IO_H */