26 lines
617 B
C
26 lines
617 B
C
|
/*
|
||
|
|
* battery_monitor.c
|
||
|
|
*
|
||
|
|
* Created on: Dec 23, 2012
|
||
|
|
* Author: tkl
|
||
|
|
*/
|
||
|
|
#include "stddef.h"
|
||
|
|
#include "adc.h"
|
||
|
|
#include "battery_monitor.h"
|
||
|
|
|
||
|
|
//------------------------------------------------------------------------------
|
||
|
|
struct battery_monitor_voltage get_voltage(const struct battery_monitor *device)
|
||
|
|
{
|
||
|
|
struct battery_monitor_voltage ret;
|
||
|
|
ret.valid = false;
|
||
|
|
if(NULL == device) {
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
adc_open(device->adc);
|
||
|
|
ret.raw = adc_read(device->adc, device->timeout);
|
||
|
|
adc_close(device->adc);
|
||
|
|
ret.voltage = ret.raw * device->factor / device->divider + device->offset;
|
||
|
|
ret.valid = true;
|
||
|
|
return ret;
|
||
|
|
}
|