mirror of
git://projects.qi-hardware.com/ben-wpan.git
synced 2024-11-25 21:49:42 +02:00
190e8f0082
- common/io.h: describe the role of PROBE_TERM in version 3 - common/io.h (VERSION_ID): renamed to VERSION_ID1 - common/io.h (VERSION_ID2): added P2_0, and described version number encoding - cntr/cntr.h (enum hw_type): added HW_TYPE_V3 - cntr/cntr.c (init_io): decode version 3, flash LED three times, and configure PROBE_TERM according to version
61 lines
1.2 KiB
C
61 lines
1.2 KiB
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
|
|
* - v3: 330 Ohm termination
|
|
*/
|
|
|
|
#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.
|
|
*
|
|
* In version 3, P2_0 is connected to ground. In all other versions, it is
|
|
* unconnected.
|
|
*
|
|
* Board VERSION_ID1
|
|
* | VERSION_ID2
|
|
* | |
|
|
* v1 0 Z
|
|
* v2 Z Z
|
|
* v3 Z 0
|
|
*
|
|
*/
|
|
|
|
#define VERSION_ID1 P2_1
|
|
#define VERSION_ID2 P2_0
|
|
|
|
#endif /* !IO_H */
|