1. Replace the following code to hello-world.c
#include "contiki.h"
#include "ti-lib.h"
#include "driverlib/aux_adc.h"
#include "driverlib/aux_wuc.h"
#include
#define CLOCK_SECOND 128
char buf[32];
static struct etimer et;
/*---------------------------------------------------------------------------*/
PROCESS(hello_world_process, "Hello world process");
AUTOSTART_PROCESSES(&hello_world_process);
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(hello_world_process, ev, data)
{
PROCESS_BEGIN();
unsigned short i;
uint16_t singleSample;
etimer_set(&et, CLOCK_SECOND);
printf("Contiki CC26xx ADC demo using DIO23 as ADC input\r\n");
while(1)
{
if(ev == PROCESS_EVENT_TIMER && etimer_expired(&et)) {
//intialisation of ADC
ti_lib_aon_wuc_aux_wakeup_event(AONWUC_AUX_WAKEUP);
while(!(ti_lib_aon_wuc_power_status_get() & AONWUC_AUX_POWER_ON))
{ }
// Enable clock for ADC digital and analog interface (not currently enabled in driver)
// Enable clocks
ti_lib_aux_wuc_clock_enable(AUX_WUC_ADI_CLOCK | AUX_WUC_ANAIF_CLOCK | AUX_WUC_SMPH_CLOCK);
while(ti_lib_aux_wuc_clock_status(AUX_WUC_ADI_CLOCK | AUX_WUC_ANAIF_CLOCK | AUX_WUC_SMPH_CLOCK) != AUX_WUC_CLOCK_READY)
{ }
printf("clock selected\r\n");
// Connect AUX IO7 (DIO23, but also DP2 on XDS110) as analog input.
AUXADCSelectInput(ADC_COMPB_IN_AUXIO7);
printf("input selected\r\n");
// Set up ADC range
// AUXADC_REF_FIXED = nominally 4.3 V
AUXADCEnableSync(AUXADC_REF_FIXED, AUXADC_SAMPLE_TIME_2P7_US, AUXADC_TRIGGER_MANUAL);
printf("init adc --- OK\r\n");
//Trigger ADC converting
AUXADCGenManualTrigger();
printf("trigger --- OK\r\n");
//reading adc value
singleSample = AUXADCReadFifo();
printf("%d mv on ADC\r\n",singleSample);
//shut the adc down
AUXADCDisable();
printf("disable --- OK\r\n");
}
etimer_set(&et, CLOCK_SECOND);
PROCESS_YIELD();
}
PROCESS_END();
}
2. Build by "make TARGET=srf06-cc26xx BOARD=srf06/cc26xx hello-world.bin" and download hello-world.bin using Flash Programmer 2 to CC2650 LaunchPad.
3. You can see ADC reading output on UART.