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update temperature Sensor driver for esp32c3

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This commit is contained in:
fuzhibo
2021-01-11 16:26:50 +08:00
committed by bot
parent a5fb7deda5
commit 33647c7cd4
1 changed files with 15 additions and 13 deletions
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28
components/driver/esp32c3/rtc_tempsensor.c
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@@ -21,7 +21,9 @@
#include "soc/rtc_cntl_reg.h"
#include "driver/temp_sensor.h"
#include "esp32c3/rom/ets_sys.h"
#include "regi2c_ctrl.h"
#include "soc/apb_saradc_struct.h"
#include "soc/apb_saradc_reg.h"
#include "soc/system_reg.h"
static const char *TAG = "tsens";
@@ -36,7 +38,6 @@ static const char *TAG = "tsens";
#define TSENS_DAC_FACTOR (27.88)
#define TSENS_SYS_OFFSET (20.52)
typedef struct {
int index;
int offset;
@@ -59,13 +60,13 @@ static SemaphoreHandle_t s_rtc_tsens_mux = NULL;
esp_err_t temp_sensor_set_config(temp_sensor_config_t tsens)
{
REG_SET_BIT(SYSTEM_PERIP_CLK_EN1_REG, SYSTEM_TSENS_CLK_EN);
CLEAR_PERI_REG_MASK(ANA_CONFIG_REG, ANA_I2C_SAR_FORCE_PD);
SET_PERI_REG_MASK(ANA_CONFIG2_REG, ANA_I2C_SAR_FORCE_PU);
REGI2C_WRITE_MASK(I2C_ADC, I2C_SARADC_TSENS_DAC, dac_offset[tsens.dac_offset].set_val);
SENS.sar_tctrl.tsens_clk_div = tsens.clk_div;
SENS.sar_tctrl.tsens_power_up_force = 1;
SENS.sar_tctrl2.tsens_xpd_wait = TSENS_XPD_WAIT_DEFAULT;
SENS.sar_tctrl2.tsens_xpd_force = 1;
APB_SARADC.apb_tsens_ctrl.tsens_clk_div = tsens.clk_div;
APB_SARADC.apb_tsens_ctrl2.tsens_xpd_wait = TSENS_XPD_WAIT_DEFAULT;
APB_SARADC.apb_tsens_ctrl2.tsens_xpd_force = 1;
ESP_LOGD(TAG, "Config temperature range [%d°C ~ %d°C], error < %d°C",
dac_offset[tsens.dac_offset].range_min,
dac_offset[tsens.dac_offset].range_max,
@@ -85,7 +86,7 @@ esp_err_t temp_sensor_get_config(temp_sensor_config_t *tsens)
break;
}
}
tsens->clk_div = SENS.sar_tctrl.tsens_clk_div;
tsens->clk_div = APB_SARADC.apb_tsens_ctrl.tsens_clk_div;
return ESP_OK;
}
@@ -95,13 +96,16 @@ esp_err_t temp_sensor_start(void)
s_rtc_tsens_mux = xSemaphoreCreateMutex();
}
TSENS_CHECK(s_rtc_tsens_mux != NULL, ESP_ERR_NO_MEM);
REG_SET_BIT(SYSTEM_PERIP_CLK_EN1_REG, SYSTEM_TSENS_CLK_EN);
APB_SARADC.apb_tsens_ctrl2.tsens_clk_sel = 1;
APB_SARADC.apb_tsens_ctrl.tsens_pu = 1;
return ESP_OK;
}
esp_err_t temp_sensor_stop(void)
{
SENS.sar_tctrl.tsens_power_up = 0;
// SENS.sar_tctrl2.tsens_clkgate_en = 0;
APB_SARADC.apb_tsens_ctrl.tsens_pu = 0;
APB_SARADC.apb_tsens_ctrl2.tsens_clk_sel = 0;
if (s_rtc_tsens_mux != NULL) {
vSemaphoreDelete(s_rtc_tsens_mux);
s_rtc_tsens_mux = NULL;
@@ -114,10 +118,7 @@ esp_err_t temp_sensor_read_raw(uint32_t *tsens_out)
TSENS_CHECK(tsens_out != NULL, ESP_ERR_INVALID_ARG);
TSENS_CHECK(s_rtc_tsens_mux != NULL, ESP_ERR_INVALID_STATE);
xSemaphoreTake(s_rtc_tsens_mux, portMAX_DELAY);
SENS.sar_tctrl.tsens_dump_out = 1;
while (!SENS.sar_tctrl.tsens_ready);
*tsens_out = SENS.sar_tctrl.tsens_out;
SENS.sar_tctrl.tsens_dump_out = 0;
*tsens_out = APB_SARADC.apb_tsens_ctrl.tsens_out;
xSemaphoreGive(s_rtc_tsens_mux);
return ESP_OK;
}
@@ -130,6 +131,7 @@ esp_err_t temp_sensor_read_celsius(float *celsius)
esp_err_t ret = temp_sensor_get_config(&tsens);
if (ret == ESP_OK) {
ret = temp_sensor_read_raw(&tsens_out);
printf("tsens_out %d\r\n", tsens_out);
TSENS_CHECK(ret == ESP_OK, ret);
const tsens_dac_offset_t *dac = &dac_offset[tsens.dac_offset];
*celsius = (TSENS_ADC_FACTOR * (float)tsens_out - TSENS_DAC_FACTOR * dac->offset - TSENS_SYS_OFFSET);