66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
/*
|
|
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
|
|
2011,2012,2013 Giovanni Di Sirio.
|
|
|
|
This file is part of ChibiOS/RT.
|
|
|
|
ChibiOS/RT 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 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
ChibiOS/RT is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/**
|
|
* Not responding slave test
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include "ch.h"
|
|
#include "hal.h"
|
|
|
|
#include "fake.h"
|
|
|
|
|
|
/* input buffer */
|
|
static uint8_t rx_data[2];
|
|
|
|
/* temperature value */
|
|
static int16_t temperature = 0;
|
|
|
|
static i2cflags_t errors = 0;
|
|
|
|
#define addr 0b1001100
|
|
|
|
/* This is main function. */
|
|
void request_fake(void){
|
|
msg_t status = RDY_OK;
|
|
systime_t tmo = MS2ST(4);
|
|
|
|
i2cAcquireBus(&I2CD1);
|
|
status = i2cMasterReceiveTimeout(&I2CD1, addr, rx_data, 2, tmo);
|
|
i2cReleaseBus(&I2CD1);
|
|
|
|
if (status == RDY_RESET){
|
|
errors = i2cGetErrors(&I2CD1);
|
|
if (errors == I2CD_ACK_FAILURE){
|
|
/* there is no slave with given address on the bus, or it was die */
|
|
return;
|
|
}
|
|
}
|
|
|
|
else{
|
|
temperature = (rx_data[0] << 8) + rx_data[1];
|
|
}
|
|
}
|
|
|
|
|