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Merge branch 'feature/sync_adc_changes_from_c3_to_master_last' into 'master'

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adc: sync adc changes from c3 to master (last time)

Closes IDF-2694

See merge request espressif/esp-idf!12134
This commit is contained in:
Michael (XIAO Xufeng)
2021-01-26 12:52:20 +08:00
parent 6938f7b30f 2b83418141
commit c99e891201
18 changed files with 322 additions and 192 deletions
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components/hal/esp32s2/adc_hal.c
-83
View File
@@ -146,86 +146,3 @@ void adc_hal_arbiter_config(adc_arbiter_t *config)
adc_ll_set_arbiter_work_mode(config->mode);
adc_ll_set_arbiter_priority(config->rtc_pri, config->dig_pri, config->pwdet_pri);
}
/*---------------------------------------------------------------
ADC calibration setting
---------------------------------------------------------------*/
#define ADC_HAL_CAL_TIMES (10)
#define ADC_HAL_CAL_OFFSET_RANGE (4096)
static uint32_t read_cal_channel(adc_ll_num_t adc_n, int channel)
{
adc_ll_rtc_start_convert(adc_n, channel);
while (adc_ll_rtc_convert_is_done(adc_n) != true);
return (uint32_t)adc_ll_rtc_get_convert_value(adc_n);
}
uint32_t adc_hal_self_calibration(adc_ll_num_t adc_n, adc_channel_t channel, adc_atten_t atten, bool internal_gnd)
{
adc_hal_set_power_manage(ADC_POWER_SW_ON);
if (adc_n == ADC_NUM_2) {
adc_arbiter_t config = ADC_ARBITER_CONFIG_DEFAULT();
adc_hal_arbiter_config(&config);
}
adc_hal_set_controller(adc_n, ADC_CTRL_RTC); //Set controller
adc_ll_calibration_prepare(adc_n, channel, internal_gnd);
/* Enable/disable internal connect GND (for calibration). */
if (internal_gnd) {
adc_ll_rtc_disable_channel(adc_n, channel);
adc_ll_set_atten(adc_n, 0, atten); // Note: when disable all channel, HW auto select channel0 atten param.
} else {
adc_ll_rtc_enable_channel(adc_n, channel);
adc_ll_set_atten(adc_n, channel, atten);
}
uint32_t code_list[ADC_HAL_CAL_TIMES] = {0};
uint32_t code_sum = 0;
uint32_t code_h = 0;
uint32_t code_l = 0;
uint32_t chk_code = 0;
for (uint8_t rpt = 0 ; rpt < ADC_HAL_CAL_TIMES ; rpt ++) {
code_h = ADC_HAL_CAL_OFFSET_RANGE;
code_l = 0;
chk_code = (code_h + code_l) / 2;
adc_ll_set_calibration_param(adc_n, chk_code);
uint32_t self_cal = read_cal_channel(adc_n, channel);
while (code_h - code_l > 1) {
if (self_cal == 0) {
code_h = chk_code;
} else {
code_l = chk_code;
}
chk_code = (code_h + code_l) / 2;
adc_ll_set_calibration_param(adc_n, chk_code);
self_cal = read_cal_channel(adc_n, channel);
if ((code_h - code_l == 1)) {
chk_code += 1;
adc_ll_set_calibration_param(adc_n, chk_code);
self_cal = read_cal_channel(adc_n, channel);
}
}
code_list[rpt] = chk_code;
code_sum += chk_code;
}
code_l = code_list[0];
code_h = code_list[0];
for (uint8_t i = 0 ; i < ADC_HAL_CAL_TIMES ; i++) {
if (code_l > code_list[i]) {
code_l = code_list[i];
}
if (code_h < code_list[i]) {
code_h = code_list[i];
}
}
chk_code = code_h + code_l;
uint32_t ret = ((code_sum - chk_code) % (ADC_HAL_CAL_TIMES - 2) < 4)
? (code_sum - chk_code) / (ADC_HAL_CAL_TIMES - 2)
: (code_sum - chk_code) / (ADC_HAL_CAL_TIMES - 2) + 1;
adc_ll_calibration_finish(adc_n);
return ret;
}
components/hal/esp32s2/include/hal/adc_hal.h
-29
View File
@@ -214,35 +214,6 @@ void adc_hal_digi_monitor_config(adc_ll_num_t adc_n, adc_digi_monitor_t *config)
*/
void adc_hal_arbiter_config(adc_arbiter_t *config);
/*---------------------------------------------------------------
ADC calibration setting
---------------------------------------------------------------*/
/**
* Calibrate the ADC using internal connections.
*
* @note Different ADC units and different attenuation options use different calibration data (initial data).
*
* @param adc_n ADC index number.
* @param channel adc channel number.
* @param atten The attenuation for the channel
* @param internal_gnd true: Disconnect from the IO port and use the internal GND as the calibration voltage.
* false: Use IO external voltage as calibration voltage.
*
* @return
* - The calibration result (initial data) to ADC, use `adc_hal_set_calibration_param` to set.
*/
uint32_t adc_hal_self_calibration(adc_ll_num_t adc_n, adc_channel_t channel, adc_atten_t atten, bool internal_gnd);
/**
* Set the calibration result (initial data) to ADC.
*
* @note Different ADC units and different attenuation options use different calibration data (initial data).
*
* @param adc_n ADC index number.
*/
#define adc_hal_set_calibration_param(adc_n, param) adc_ll_set_calibration_param(adc_n, param);
#ifdef __cplusplus
}
#endif
components/hal/esp32s2/include/hal/adc_ll.h
+13 -3
View File
@@ -690,7 +690,7 @@ static inline void adc_ll_rtc_enable_channel(adc_ll_num_t adc_n, int channel)
* @param adc_n ADC unit.
* @param channel ADC channel number for each ADCn.
*/
static inline void adc_ll_rtc_disable_channel(adc_ll_num_t adc_n, int channel)
static inline void adc_ll_rtc_disable_channel(adc_ll_num_t adc_n)
{
if (adc_n == ADC_NUM_1) {
SENS.sar_meas1_ctrl2.sar1_en_pad = 0; //only one channel is selected.
@@ -1123,6 +1123,18 @@ static inline void adc_ll_disable_sleep_controller(void)
}
/* ADC calibration code. */
/**
* @brief Set common calibration configuration. Should be shared with other parts (PWDET).
*/
static inline void adc_ll_calibration_init(adc_ll_num_t adc_n)
{
if (adc_n == ADC_NUM_1) {
REGI2C_WRITE_MASK(I2C_SAR_ADC, ADC_SAR1_DREF_ADDR, 4);
} else {
REGI2C_WRITE_MASK(I2C_SAR_ADC, ADC_SAR2_DREF_ADDR, 4);
}
}
/**
* Configure the registers for ADC calibration. You need to call the ``adc_ll_calibration_finish`` interface to resume after calibration.
*
@@ -1143,14 +1155,12 @@ static inline void adc_ll_calibration_prepare(adc_ll_num_t adc_n, adc_channel_t
/* Enable/disable internal connect GND (for calibration). */
if (adc_n == ADC_NUM_1) {
REGI2C_WRITE_MASK(I2C_SAR_ADC, ADC_SAR1_DREF_ADDR, 4);
if (internal_gnd) {
REGI2C_WRITE_MASK(I2C_SAR_ADC, ADC_SAR1_ENCAL_GND_ADDR, 1);
} else {
REGI2C_WRITE_MASK(I2C_SAR_ADC, ADC_SAR1_ENCAL_GND_ADDR, 0);
}
} else {
REGI2C_WRITE_MASK(I2C_SAR_ADC, ADC_SAR2_DREF_ADDR, 4);
if (internal_gnd) {
REGI2C_WRITE_MASK(I2C_SAR_ADC, ADC_SAR2_ENCAL_GND_ADDR, 1);
} else {