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Add Raven battery display to status page

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This commit is contained in:
David Kopf 2011-11-14 11:38:44 -05:00
parent d1cd3f213c
commit 062b85123e
1 changed files with 59 additions and 6 deletions
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63
apps/webserver-nano/httpd-cgi.c
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@ -572,16 +572,25 @@ generate_sensor_readings(void *arg)
h=2550-75*16-75+75*i; //-75 to take the floor of the 75 mv transition window
static const char httpd_cgi_sensor2_printf[] HTTPD_STRING_ATTR = "%u mv";
httpd_snprintf(sensor_extvoltage,sizeof(sensor_extvoltage),httpd_cgi_sensor2_printf,h);
#if 0 //usual way to get AVR supply voltage, measure 1.1v bandgap using Vcc as reference
//ADMUX =0x1E; //Select AREF as reference, measure 1.1 volt bandgap reference.
}
#elif CONTIKI_TARGET_AVR_RAVEN
{
#if 1
/* Usual way to get AVR supply voltage, measure 1.1v bandgap using Vcc as reference.
* This connects the bandgap to the AREF pin, so enable only if there is no external AREF!
* A capacitor may be connected to this pin to reduce reference noise.
*/
ADMUX =0x5E; //Select AVCC as reference, measure 1.1 volt bandgap reference.
ADCSRA=0x07; //Enable ADC, not free running, interrupt disabled, clock divider 128 (62 KHz@ 8 MHz)
ADCSRA=0x87; //Enable ADC, not free running, interrupt disabled, clock divider 128 (62 KHz@ 8 MHz)
ADCSRA|=1<<ADSC; //Start throwaway conversion
while (ADCSRA&(1<<ADSC)); //Wait till done
ADCSRA|=1<<ADSC; //Start another conversion
while (ADCSRA&(1<<ADSC)); //Wait till done
h=1131632UL/ADC; //Get supply voltage
//h=1126400UL/ADC; //Get supply voltage (factor nominally 1100*1024)
h=1198070UL/ADC; //My Raven
ADCSRA=0; //disable ADC
ADMUX=0; //turn off internal vref
static const char httpd_cgi_sensor2_printf[] HTTPD_STRING_ATTR = "%u mv";
httpd_snprintf(sensor_extvoltage,sizeof(sensor_extvoltage),httpd_cgi_sensor2_printf,h);
#endif
@ -1038,9 +1047,53 @@ static uint16_t c0=0x3ff,c1=0x3ff,c2=0x3ff,c3=0x3ff,c4=0x3ff,c5=0x3ff,c6=0x3ff,c
numprinted += httpd_snprintf(buf+numprinted, sizeof(buf)-numprinted,httpd_cgi_ajax12);
}
}
#elif CONTIKI_TARGET_AVR_RAVEN
{ int16_t tmp,bat;
#if 1
/* Usual way to get AVR supply voltage, measure 1.1v bandgap using Vcc as reference.
* This connects the bandgap to the AREF pin, so enable only if there is no external AREF!
* A capacitor may be connected to this pin to reduce reference noise.
*/
ADMUX =0x5E; //Select AVCC as reference, measure 1.1 volt bandgap reference.
ADCSRA=0x87; //Enable ADC, not free running, interrupt disabled, clock divider 128 (62 KHz@ 8 MHz)
ADCSRA|=1<<ADSC; //Start throwaway conversion
while (ADCSRA&(1<<ADSC)); //Wait till done
ADCSRA|=1<<ADSC; //Start another conversion
while (ADCSRA&(1<<ADSC)); //Wait till done
//bat=1126400UL/ADC; //Get supply voltage (factor nominally 1100*1024)
bat=1198070UL/ADC; //My Raven
ADCSRA=0; //disable ADC
ADMUX=0; //turn off internal vref
#else
bat=3300;
#endif
tmp=420;
static const char httpd_cgi_ajax10[] HTTPD_STRING_ATTR ="t(%u),b(%u);adc(%d,%d,%u,%u,%u,%u,%u,%lu);";
numprinted = httpd_snprintf(buf, sizeof(buf),httpd_cgi_ajax10,tmp,bat,iter,tmp,bat,sleepcount,OCR2A,0,clock_time(),clock_seconds());
if (iter<3) {
static const char httpd_cgi_ajax11[] HTTPD_STRING_ATTR = "wt('Raven [";
static const char httpd_cgi_ajax12[] HTTPD_STRING_ATTR = "]');";
numprinted += httpd_snprintf(buf+numprinted, sizeof(buf)-numprinted,httpd_cgi_ajax11);
#if WEBSERVER_CONF_PRINTADDR
/* Note address table is filled from the end down */
{int i;
for (i=0; i<UIP_DS6_ADDR_NB;i++) {
if (uip_ds6_if.addr_list[i].isused) {
numprinted += httpd_cgi_sprint_ip6(uip_ds6_if.addr_list[i].ipaddr, buf + numprinted);
break;
}
}
}
#endif
numprinted += httpd_snprintf(buf+numprinted, sizeof(buf)-numprinted,httpd_cgi_ajax12);
}
}
//#elif CONTIKI_TARGET_IS_SOMETHING_ELSE
#else
{
static const char httpd_cgi_ajax10[] HTTPD_STRING_ATTR ="v(%u);";
numprinted = httpd_snprintf(buf, sizeof(buf),httpd_cgi_ajax10,iter);
if (iter==1) {