Hi All,
I want to use 2 adc in Q2686. AUX_ADC (ADC2) is working properly but i’m not been able to use BAT_TEMP (ADC1) as it is returning 0 value in both AT+ADC? and adl_adcAnalogRead function. In my case, system is power operated and battery charging is not required.Can anyone help me to use BAT_TEMP input as analog input?
Hi,
here is code for reading temp. from MCP9700T. Maybe you have a problem with this line:
s32 MyADCHandle=1; //1 - BAT TEMP, 2 - ADC2
/********************************************************************************************/
/* ADC.c - Copyright Wavecom S.A. (c) 2006 */
/* */
/* */
/* DISCLAIMER OF WARRANTY */
/* ====================== */
/* This Software is provided free of charge on an 'as is' basis. No warranty is given */
/* by Wavecom S.A. in relation to the Software of the uses to which it may be put by you, */
/* the user, or its merchantability, fitness or suitability for any particular purpose */
/* or conditions; and/or that the use of the Software and all documentation relating */
/* thereto by the Licensee will not infringe any third party copyright or other */
/* intellectual property rights. Wavecom S.A. shall furthermore be under no obligation */
/* to provide support of any nature for the Software and the Documentation. */
/* */
/* LIMIT OF LIABILITY */
/* ================== */
/* In no event shall Wavecom S.A. be liable for any loss or damages whatsoever or howsoever */
/* caused arising directly or indirectly in connection with this licence, the Software, */
/* its use or otherwise except to the extent that such liability may not be lawfully */
/* excluded. Notwithstanding the generality of the foregoing, Wavecom S.A. expressly */
/* excludes liability for indirect, special, incidental or consequential loss or damage */
/* which may arise in respect of the Software or its use, or in respect of other equipment */
/* or property, or for loss of profit, business, revenue, goodwill or anticipated savings. */
/* */
/********************************************************************************************/
/***************************************************************************/
/* File : ADC.c */
/*-------------------------------------------------------------------------*/
/* Object : Customer application */
/* */
/* contents : ADL ADC Sample */
/* */
/****************************************************************************/
/* includes */
#include "adl_global.h"
/***************************************************************************/
/* Local variables */
/***************************************************************************/
/* --------- */
/* Constants */
/* --------- */
#define ADC_MAX_LEVEL 2000
#define ADC_INITIAL_LEVEL 0
// Commands strings
static const ascii * ADC_CMD_LEVEL = "AT+ADCLEVEL";
/* --------- */
/* Variables */
/* --------- */
// ADC variables
s32 MyADCHandle=1; //1 - BAT TEMP, 2 - ADC2
u16 ADC_Level;
// Trace hard Level defined on entry point
static u8 ADC_Trace_Level = 2;
/***************************************************************************/
/* Mandatory variables */
/*-------------------------------------------------------------------------*/
/* wm_apmCustomStackSize */
/*-------------------------------------------------------------------------*/
/***************************************************************************/
const u16 wm_apmCustomStackSize = 1024*3;
/***************************************************************************/
/* Local functions */
/***************************************************************************/
/***************************************************************************/
/* Function : ADC_LEVEL_CmdHandler */
/*-------------------------------------------------------------------------*/
/* Objet : ADC output value */
/* */
/*-------------------------------------------------------------------------*/
/* Variable Name |IN |OUT|GLB| Utilisation */
/*--------------------+---+---+---+----------------------------------------*/
/* paras | X | | | set the ADC output value */
/*--------------------+---+---+---+----------------------------------------*/
/***************************************************************************/
void ADC_LEVEL_CmdHandler ( adl_atCmdPreParser_t * paras )
{
// Switch on CmdType
switch(paras->Type)
{
case ADL_CMD_TYPE_TEST :
{
// Possible values
ascii result[100];
wm_sprintf ( result, "\r\n%s: (0-%d)\r\n", ADC_CMD_LEVEL + 2, ADC_MAX_LEVEL );
adl_atSendResponsePort ( ADL_AT_RSP, paras->Port, result );
}
break;
case ADL_CMD_TYPE_READ :
{
s32 sReturn;
s32 ADCresult;
// Read the current value on the ADC block
sReturn = adl_adcAnalogRead ( MyADCHandle, &ADCresult );
if ( sReturn == 0 )
{
// Current value
ascii result[100];
wm_sprintf ( result, "\r\n%s: %d,%d°C\r\n", ADC_CMD_LEVEL + 2, (ADCresult-500)/10, (ADCresult-500)%10);
adl_atSendResponsePort ( ADL_AT_RSP, paras->Port, result );
}
else
{
// Bad parameter
TRACE (( ADC_Trace_Level, "ADC sample : adl_ADCRead error %d", sReturn ));
adl_atSendStdResponsePort ( ADL_AT_RSP, paras->Port, ADL_STR_ERROR );
}
}
break;
}
}
/***************************************************************************/
/* Function : ADC_run */
/*-------------------------------------------------------------------------*/
/* Object : Start Application Function */
/* */
/*-------------------------------------------------------------------------*/
/* Variable Name |IN |OUT|GLB| Utilisation */
/*--------------------+---+---+---+----------------------------------------*/
/***************************************************************************/
bool ADC_run ( u8 Port )
{
bool sReturn = TRUE;
// Subscribe to AT commands set
adl_atCmdSubscribe ( (ascii*)(ADC_CMD_LEVEL), ADC_LEVEL_CmdHandler, ADL_CMD_TYPE_TEST | ADL_CMD_TYPE_READ | 0x11 );
return sReturn;
}
/***************************************************************************/
/* Function : adl_main */
/*-------------------------------------------------------------------------*/
/* Objet : Customer ADL application initialisation */
/* */
/* Return : */
/* */
/*-------------------------------------------------------------------------*/
/* Variable Name |IN |OUT|GLB| Utilisation */
/*--------------------+---+---+---+----------------------------------------*/
/* adlInitType | | | | Application starting mode */
/***************************************************************************/
void adl_main(adl_InitType_e adlInitType)
{
bool bReturn = FALSE;
// Call Monitoring test application
TRACE (( 1, "ADC sample main" ));
TRACE (( 1, __DATE__ ));
TRACE (( 1, __TIME__ ));
// start application
bReturn = ADC_run ( 0 );
if(bReturn == FALSE)
{
TRACE (( 1, "Application launch failed" ));
}
}Hi,
I have tried it with a new module and both the adc are working. Thanks a lot for the reply.