adcsinglechannel_CC2650DK_7ID_TI_CC2650F128 peoject adc question

Tzuyu Lin

Dear All:

I import adcsinglechannel project to CCS:

about TaskFxn0:

/*
* ======== taskFxn0 ========
* Open an ADC instance and get a sampling result from a one-shot conversion.
*/
Void taskFxn0(UArg arg0, UArg arg1)
{
ADC_Handle adc;
ADC_Params params;
int_fast16_t res;

ADC_Params_init(&params);
adc = ADC_open(Board_ADC0, &params);

if (adc == NULL) {
System_abort("Error initializing ADC channel 0\n");
}
else {
System_printf("ADC channel 0 initialized\n");
}

/* Blocking mode conversion */
res = ADC_convert(adc, &adcValue0);

if (res == ADC_STATUS_SUCCESS) {
System_printf("ADC channel 0 convert result: 0x%x\n", adcValue0);
}
else {
System_printf("ADC channel 0 convert failed\n");
}

ADC_close(adc);

System_flush();
}

I get result:

if I want to read ADC channel 0 many times , what do I do?

over 8 years ago

0 Zahid Haq over 8 years ago

TI__Mastermind 25035 points

Hi,

Have you tried calling ADC_convert() many times?

Best wishes

0 Tzuyu Lin over 8 years ago in reply to Zahid Haq

Genius 4425 points

No, but I guess I know where I am wrong.

I revise CC2650DK_7ID.c :

* ========================== ADC begin =========================================

/* Place into subsections to allow the TI linker to remove items properly */

#if defined(__TI_COMPILER_VERSION__)

#pragma DATA_SECTION(ADC_config, ".const:ADC_config")

#pragma DATA_SECTION(adcCC26xxHWAttrs, ".const:adcCC26xxHWAttrs")

#endif

/* Include drivers */

#include <ti/drivers/ADC.h>

#include <ti/drivers/adc/ADCCC26XX.h>

/* ADC objects */

ADCCC26XX_Object adcCC26xxObjects[CC2650DK_7ID_ADCCOUNT];

const ADCCC26XX_HWAttrs adcCC26xxHWAttrs[CC2650DK_7ID_ADCCOUNT] = {

{

.adcDIO = Board_DIO25_ANALOG,

.adcCompBInput = ADC_COMPB_IN_AUXIO5,

.refSource = ADCCC26XX_FIXED_REFERENCE,

.samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,

.inputScalingEnabled = true,

.triggerSource = ADCCC26XX_TRIGGER_MANUAL

{

.adcDIO = PIN_UNASSIGNED,

.adcCompBInput = ADC_COMPB_IN_DCOUPL,

.refSource = ADCCC26XX_FIXED_REFERENCE,

.samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,

.inputScalingEnabled = true,

.triggerSource = ADCCC26XX_TRIGGER_MANUAL

{

.adcDIO = PIN_UNASSIGNED,

.adcCompBInput = ADC_COMPB_IN_VSS,

.refSource = ADCCC26XX_FIXED_REFERENCE,

.samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,

.inputScalingEnabled = true,

.triggerSource = ADCCC26XX_TRIGGER_MANUAL

{

.adcDIO = PIN_UNASSIGNED,

.adcCompBInput = ADC_COMPB_IN_VDDS,

.refSource = ADCCC26XX_FIXED_REFERENCE,

.samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,

.inputScalingEnabled = true,

.triggerSource = ADCCC26XX_TRIGGER_MANUAL

}

};

const ADC_Config ADC_config[] = {

{&ADCCC26XX_fxnTable, &adcCC26xxObjects[0], &adcCC26xxHWAttrs[0]},

{&ADCCC26XX_fxnTable, &adcCC26xxObjects[1], &adcCC26xxHWAttrs[1]},

{&ADCCC26XX_fxnTable, &adcCC26xxObjects[2], &adcCC26xxHWAttrs[2]},

{&ADCCC26XX_fxnTable, &adcCC26xxObjects[3], &adcCC26xxHWAttrs[3]},

{NULL, NULL, NULL},

};

but I don't revise

const PIN_Config BoardGpioInitTable[] = {

Board_DK_LED1 | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL | PIN_DRVSTR_MAX, /* LED initially off */
Board_DK_LED2 | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL | PIN_DRVSTR_MAX, /* LED initially off */
Board_DK_LED3 | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL | PIN_DRVSTR_MAX, /* LED initially off */
Board_DK_LED4 | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL | PIN_DRVSTR_MAX, /* LED initially off */
Board_KEY_SELECT | PIN_INPUT_EN | PIN_PULLUP | PIN_HYSTERESIS, /* Button is active low */
Board_KEY_UP | PIN_INPUT_EN | PIN_PULLUP | PIN_HYSTERESIS, /* Button is active low */
Board_KEY_DOWN | PIN_INPUT_EN | PIN_PULLUP | PIN_HYSTERESIS, /* Button is active low */
Board_KEY_LEFT | PIN_INPUT_EN | PIN_PULLUP | PIN_HYSTERESIS, /* Button is active low */
Board_KEY_RIGHT | PIN_INPUT_EN | PIN_PULLUP | PIN_HYSTERESIS, /* Button is active low */
Board_3V3_EN | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL, /* 3V3 domain off initially */
Board_LCD_MODE | PIN_GPIO_OUTPUT_EN | PIN_GPIO_HIGH | PIN_PUSHPULL, /* LCD pin high initially */
Board_LCD_RST | PIN_GPIO_OUTPUT_EN | PIN_GPIO_HIGH | PIN_PUSHPULL, /* LCD pin high initially */
Board_LCD_CSN | PIN_GPIO_OUTPUT_EN | PIN_GPIO_HIGH | PIN_PUSHPULL, /* LCD CSn deasserted initially */
Board_ALS_PWR | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL, /* ALS power off initially */
Board_ACC_PWR | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL, /* ACC power off initially */
Board_ACC_CSN | PIN_GPIO_OUTPUT_EN | PIN_GPIO_HIGH | PIN_PUSHPULL, /* ACC CSn deasserted initially */
Board_SDCARD_CSN | PIN_GPIO_OUTPUT_EN | PIN_GPIO_HIGH | PIN_PUSHPULL, /* SDCARD CSn deasserted initially */
Board_UART_TX | PIN_GPIO_OUTPUT_EN | PIN_GPIO_HIGH | PIN_PUSHPULL, /* UART TX pin at inactive level */
PIN_TERMINATE /* Terminate list */
};

Should I modify red line ?

0 Tzuyu Lin over 8 years ago in reply to Zahid Haq

Genius 4425 points

No, but I guess I know where I am wrong.
I revise CC2650DK_7ID.c :
/*
* ========================== ADC begin =========================================
*/
/* Place into subsections to allow the TI linker to remove items properly */
#if defined(__TI_COMPILER_VERSION__)
#pragma DATA_SECTION(ADC_config, ".const:ADC_config")
#pragma DATA_SECTION(adcCC26xxHWAttrs, ".const:adcCC26xxHWAttrs")
#endif

/* Include drivers */
#include <ti/drivers/ADC.h>
#include <ti/drivers/adc/ADCCC26XX.h>

/* ADC objects */
ADCCC26XX_Object adcCC26xxObjects[CC2650DK_7ID_ADCCOUNT];

const ADCCC26XX_HWAttrs adcCC26xxHWAttrs[CC2650DK_7ID_ADCCOUNT] = {
{
.adcDIO = Board_DIO25_ANALOG,
.adcCompBInput = ADC_COMPB_IN_AUXIO5,
.refSource = ADCCC26XX_FIXED_REFERENCE,
.samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,
.inputScalingEnabled = true,
.triggerSource = ADCCC26XX_TRIGGER_MANUAL
},
{
.adcDIO = PIN_UNASSIGNED,
.adcCompBInput = ADC_COMPB_IN_DCOUPL,
.refSource = ADCCC26XX_FIXED_REFERENCE,
.samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,
.inputScalingEnabled = true,
.triggerSource = ADCCC26XX_TRIGGER_MANUAL
},
{
.adcDIO = PIN_UNASSIGNED,
.adcCompBInput = ADC_COMPB_IN_VSS,
.refSource = ADCCC26XX_FIXED_REFERENCE,
.samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,
.inputScalingEnabled = true,
.triggerSource = ADCCC26XX_TRIGGER_MANUAL
},
{
.adcDIO = PIN_UNASSIGNED,
.adcCompBInput = ADC_COMPB_IN_VDDS,
.refSource = ADCCC26XX_FIXED_REFERENCE,
.samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,
.inputScalingEnabled = true,
.triggerSource = ADCCC26XX_TRIGGER_MANUAL
}
};

const ADC_Config ADC_config[] = {
{&ADCCC26XX_fxnTable, &adcCC26xxObjects[0], &adcCC26xxHWAttrs[0]},
{&ADCCC26XX_fxnTable, &adcCC26xxObjects[1], &adcCC26xxHWAttrs[1]},
{&ADCCC26XX_fxnTable, &adcCC26xxObjects[2], &adcCC26xxHWAttrs[2]},
{&ADCCC26XX_fxnTable, &adcCC26xxObjects[3], &adcCC26xxHWAttrs[3]},
{NULL, NULL, NULL},
};

0 Tzuyu Lin over 8 years ago in reply to Tzuyu Lin

Genius 4425 points

but I don't revise :
const PIN_Config BoardGpioInitTable[] = {
..
..
..
Board_ALS_PWR | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL, /* ALS power off initially */
..
..
}
Should I need to revise Board_ALS_PWR ??

0 Tzuyu Lin over 8 years ago

Genius 4425 points

Dear All:

I use project adcsinglechannel_CC2650DK_7ID_TI_CC2650F128 to test Moisture Sensor:

and CC2650DK connect sensor :

RF2.11 -->Sensor Data

and revise CC2650DK_7ID.c

.adcDIO = Board_DIO25_ANALOG,
.adcCompBInput = ADC_COMPB_IN_AUXIO5,

and adcsinglechannel.c:

Void taskFxn0(UArg arg0, UArg arg1)
{
ADC_Handle adc;
ADC_Params params;
int_fast16_t res;

ADC_Params_init(&params);
adc = ADC_open(Board_ADC0, &params);

if (adc == NULL) {
System_abort("Error initializing ADC channel 0\n");
}
else {
System_printf("ADC channel 0 initialized\n");
}

/* Blocking mode conversion */
res = ADC_convert(adc, &adcValue0);

if (res == ADC_STATUS_SUCCESS) {
System_printf("ADC channel 0 convert result: %d\n", adcValue0);
}
else {
System_printf("ADC channel 0 convert failed\n");
}

ADC_close(adc);

System_flush();
}

I get result always:

ADC channel 0 convert result: 3113

I don't know what's happen ? I hope someone can help , Thank you.

0 Zahid Haq over 8 years ago in reply to Tzuyu Lin

TI__Mastermind 25035 points

Hi,

Perhaps the moisture level is the same? Did you test the code with some generated input voltage to the ADC pin?

Best wishes

0 Tzuyu Lin over 8 years ago in reply to Zahid Haq

Genius 4425 points

Hello:

I revise adc = ADC_open(Board_ADC0, &params);

adc = ADC_open(Board_ADC1, &params);

then that value seems normal.

I don't understand Board_ADC1 and Board_ADC0 , what's different ?

I guess it't the same.

Because the file : CC2650DK_7ID.h written ADCName is :

typedef enum CC2650DK_7ID_ADCName {

CC2650DK_7ID_ADCALS = 0, //Board_ADC1

CC2650DK_7ID_ADCDCOUPL,

CC2650DK_7ID_ADCVSS,

CC2650DK_7ID_ADCVDDS, //Board_ADC0

CC2650DK_7ID_ADCCOUNT

} CC2650DK_7ID_ADCName;

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adcsinglechannel_CC2650DK_7ID_TI_CC2650F128 peoject adc question