MARVEL/pwm32e_pro
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

V1.0

Browse Source
This commit is contained in:
moyuhai
2026-06-09 16:39:17 +08:00
commit 41a602f89c
3057 changed files with 771495 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
project/example/driver/adc/app/src/adc.c
+109
View File
@@ -0,0 +1,109 @@
/*!
* \file adc.c
*
* \brief Target adc implementation
*
* \copyright Revised BSD License, see section \ref LICENSE.
*
* \code
*
* _ __ _ ________ _
* | |/ /(_)___ / ____/ /_ (_)___
* | // / __ \/ / / __ \/ / __ \
* / |/ / / / / /___/ / / / / /_/ /
* /_/|_/_/_/ /_/\____/_/ /_/_/ .___/
* /_/
* (C) 2022-2025 XinChip
*
* \endcode
*
* \author ( XinChip ) Alex-J
*
* \author ( XinChip )
*/
/*-----------------------------------------------------------------------------------
INCLUDE HEADE FILES
------------------------------------------------------------------------------------*/
#include "adc.h"
#include "xc_drv_adc.h"
#include "xc_drv_systick.h"
#include "main.h"
/*------------------------------------------------------------------------------------
Macros
-------------------------------------------------------------------------------------*/
/*------------------------------------------------------------------------------------
Global Variables
-------------------------------------------------------------------------------------*/
/*------------------------------------------------------------------------------------
Functions
-------------------------------------------------------------------------------------*/
/**
* @brief adc_demo
* @details Sampling once per second with 3.3v reference voltage
* @param void
* @retval void
*/
void adc_demo(void)
{
DEBUG("__ADC_DEMO__\r");
uint16_t integer;
uint16_t decimal;
uint16_t adc_val;
uint16_t adc_2v48_param;
uint16_t after_calibrat_adc_val;
ADC_InitCfg_t adc_cfg ;
/*----- Special Read the 2.48 v calibration value -----*/
/*< If the content of the parameter
storage area is invalid, the default assignment is 10000 >*/
if(false == xc_adc_2v4_calibrate_read(&adc_2v48_param))
{
adc_2v48_param = 10000;
}
/*----- Special Pin -----*/
/*< The SWD and SWCK pins can also be used as ADC pins.
Pay attention to the function remapping of the PIN pins. >*/
adc_cfg.Freq = ADC_FREQ_2M;
adc_cfg.RefVol = ADC_REF_VOL_2_48V;
adc_cfg.SampEdge = ADC_SAMPEDGE_RISE;
adc_cfg.ExtDataMode = ADC_EXT_DATA_MODE_32BIT;
adc_cfg.ExtEdgeSel = ADC_EXT_EDGE_SEL_INTER;
adc_cfg.ExtSampleNum = ADC_EXT_SAMPLE_NUM_8;
adc_cfg.ExtTriggerSel = ADC_EXT_TRIGGER_SEL_PWM0;
xc_adc_init(&adc_cfg);
while(1)
{
xc_adc_start_get_value( ADC_CH5_PIN1 ,&adc_val);
if(adc_cfg.RefVol == ADC_REF_VOL_3_3V)
{
integer = ((adc_val)*ADV_REF_VOLT_3_3V*100)/(1.0*4096)/100;
decimal = ((uint32_t)((adc_val*ADV_REF_VOLT_3_3V*100)/4096)%100);
DEBUG("3.3v ref adc_vol=%d.%02d ,adc_val=%d\n", integer, decimal,adc_val);
}
else if(adc_cfg.RefVol == ADC_REF_VOL_2_48V)
{
after_calibrat_adc_val = adc_val *adc_2v48_param/10000;
integer = ((adc_val)*ADV_REF_VOLT_2_4_8V*100)/(1.0*4096)/100;
decimal = ((uint32_t)((adc_val*ADV_REF_VOLT_2_4_8V*100)/4096)%100);
DEBUG("2.48v ref adc_vol=%d.%02d ,adc_val=%d\n", integer, decimal,adc_val);
integer = ((after_calibrat_adc_val)*ADV_REF_VOLT_2_4_8V*100)/(1.0*4096)/100;
decimal = ((uint32_t)((after_calibrat_adc_val*ADV_REF_VOLT_2_4_8V*100)/4096)%100);
DEBUG("after_calibrat 2.48v ref adc_vol=%d.%02d ,adc_val=%d\n", integer, decimal,after_calibrat_adc_val);
}
delay_ms(1000);
}
}