You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
74 lines
1.9 KiB
74 lines
1.9 KiB
/*
|
|
* Copyright (c) 2006-2023, RT-Thread Development Team
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Change Logs:
|
|
* Date Author Email Notes
|
|
* 2022-04-16 Kevin.Liu kevin.liu.mchp@gmail.com First Release
|
|
*/
|
|
|
|
#include <rtthread.h>
|
|
|
|
#include <atmel_start.h>
|
|
|
|
#include "adc_demo.h"
|
|
|
|
#ifdef SAM_ADC_EXAMPLE
|
|
|
|
#if defined(SOC_SAMC21) || defined(SOC_SAML10)
|
|
#define ADC_RESOLUTION_12BIT ADC_CTRLC_RESSEL_12BIT_Val
|
|
#define ADC_RESOLUTION_16BIT ADC_CTRLC_RESSEL_16BIT_Val
|
|
#elif defined(SOC_SAME54)
|
|
#define ADC_RESOLUTION_12BIT ADC_CTRLB_RESSEL_12BIT_Val
|
|
#define ADC_RESOLUTION_16BIT ADC_CTRLB_RESSEL_16BIT_Val
|
|
#elif defined(SOC_SAME70)
|
|
#define ADC_RESOLUTION_12BIT AFEC_EMR_RES_NO_AVERAGE_Val
|
|
#define ADC_RESOLUTION_16BIT AFEC_EMR_RES_OSR256_Val
|
|
#else
|
|
#error "ADC undefined SOC Platform"
|
|
#endif
|
|
|
|
/**
|
|
* @brief Call this function will run ADC test code.
|
|
*
|
|
* @note Test code will try to read ADC conversion result.
|
|
*
|
|
* @param None.
|
|
*
|
|
* @return RT_OK or -RT_ERROR.
|
|
*/
|
|
|
|
rt_err_t adc_demo_run(void)
|
|
{
|
|
rt_uint8_t buffer[2];
|
|
|
|
/* enable ADC driver module */
|
|
adc_sync_enable_channel(&ADC_0, 0);
|
|
|
|
adc_sync_read_channel(&ADC_0, 0, buffer, 2);
|
|
#ifndef RT_USING_FINSH
|
|
rt_kprintf("buf[0]=0x%02X buf[1]=0x%02X\r\n", buffer[0], buffer[1]);
|
|
#endif
|
|
|
|
/* ADC 16-bit resolution */
|
|
adc_sync_disable_channel(&ADC_0, 0);
|
|
adc_sync_set_resolution(&ADC_0, ADC_RESOLUTION_16BIT);
|
|
adc_sync_enable_channel(&ADC_0, 0);
|
|
#ifndef RT_USING_FINSH
|
|
rt_kprintf("buf[0]=0x%02X buf[1]=0x%02X\r\n", buffer[0], buffer[1]);
|
|
#endif
|
|
|
|
/* ADC 12-bit resolution */
|
|
adc_sync_disable_channel(&ADC_0, 0);
|
|
adc_sync_set_resolution(&ADC_0, ADC_RESOLUTION_12BIT);
|
|
adc_sync_enable_channel(&ADC_0, 0);
|
|
#ifndef RT_USING_FINSH
|
|
rt_kprintf("buf[0]=0x%02X buf[1]=0x%02X\r\n", buffer[0], buffer[1]);
|
|
#endif
|
|
|
|
return RT_EOK;
|
|
}
|
|
#endif
|
|
|
|
/*@}*/
|
|
|