STMPE811.c
69 lines
| 1.8 KiB
| text/x-c
|
CLexer
r71 | /*------------------------------------------------------------------------------ | |||
-- This file is a part of the libuc, microcontroler library | ||||
-- Copyright (C) 2013, Alexis Jeandet | ||||
-- | ||||
-- 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 3 of the License, or | ||||
-- (at your option) any later version. | ||||
-- | ||||
-- This program 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, write to the Free Software | ||||
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||||
------------------------------------------------------------------------------- | ||||
-- Author : Alexis Jeandet | ||||
-- Mail : alexis.jeandet@member.fsf.org | ||||
-------------------------------------------------------------------------------*/ | ||||
#include <STMPE811.h> | ||||
int stmpe811init(STMPE811_t *dev, i2c_t i2cdev, uint8_t A0) | ||||
{ | ||||
dev->devAddress = 0x82; | ||||
if(A0) dev->devAddress = 0x88; | ||||
dev->i2cdev = i2cdev; | ||||
return 1; | ||||
} | ||||
int stmpe811getID(STMPE811_t *dev) | ||||
{ | ||||
if(dev != NULL) | ||||
{ | ||||
char DATA[2]; | ||||
DATA[0]=STMPE811_REGISTER_CHIP_ID; | ||||
i2cwrite(dev->i2cdev,dev->devAddress,DATA,1); | ||||
i2cread(dev->i2cdev,dev->devAddress,DATA,2); | ||||
uint16_t val=DATA[0]; | ||||
val=(val<<8)+DATA[1]; | ||||
return val; | ||||
} | ||||
return -1; | ||||
} | ||||