44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
|
/*
|
||
|
|
* mcp3422.h:
|
||
|
|
* Extend wiringPi with the MCP3422/3/4 I2C ADC chip
|
||
|
|
***********************************************************************
|
||
|
|
* This file is part of wiringPi:
|
||
|
|
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||
|
|
*
|
||
|
|
* wiringPi is free software: you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU Lesser General Public License as
|
||
|
|
* published by the Free Software Foundation, either version 3 of the
|
||
|
|
* License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* wiringPi 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 Lesser General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU Lesser General Public
|
||
|
|
* License along with wiringPi.
|
||
|
|
* If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
***********************************************************************
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define MCP3422_SR_240 0
|
||
|
|
#define MCP3422_SR_60 1
|
||
|
|
#define MCP3422_SR_15 2
|
||
|
|
#define MCP3422_SR_3_75 3
|
||
|
|
|
||
|
|
#define MCP3422_GAIN_1 0
|
||
|
|
#define MCP3422_GAIN_2 1
|
||
|
|
#define MCP3422_GAIN_4 2
|
||
|
|
#define MCP3422_GAIN_8 3
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
extern int mcp3422Setup (int pinBase, int i2cAddress, int sampleRate, int gain) ;
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|