polymachine/b-parasite-esp32
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Fixs PWM current consumption - SYSTEM ON sleep @ ~2.7uA

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This commit is contained in:
rbaron 2022-11-22 22:21:16 +01:00
parent 6705c11867
commit 339e5bebe9
6 changed files with 52 additions and 10 deletions
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5
code/nrf-connect/boards/arm/bparasite_nrf52840/Kconfig
View file

@ -6,4 +6,9 @@ config BOARD_ENABLE_DCDC
select SOC_DCDC_NRF52X
default y
config BOARD_ENABLE_DCDC_HV
bool "High Voltage DCDC converter"
select SOC_DCDC_NRF52X_HV
default y
endif # BOARD_BPARASITE_NRF52840

14
code/nrf-connect/boards/arm/bparasite_nrf52840/bparasite_nrf52840.dts
View file

@ -27,6 +27,7 @@
buttons {
compatible = "gpio-keys";
button0: button_0 {
// P0.12.
gpios = <&gpio0 12 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
label = "Push button switch 0";
};
@ -34,9 +35,18 @@
soil_pwm: soil_pwm {
compatible = "pwm-fixed";
pwms = <&pwm0 0 PWM_MSEC(100) PWM_POLARITY_INVERTED>;
pwms = <&pwm0 0 PWM_MSEC(100) PWM_POLARITY_NORMAL>;
pulse = <PWM_MSEC(50)>;
};
ctrl {
compatible = "gpio-keys";
fast_disch: fast_disch {
// P1.10.
gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
label = "Fast discharge circuitry";
};
};
};
&gpiote {
@ -53,7 +63,7 @@
&uart0 {
compatible = "nordic,nrf-uart";
status = "okay";
status = "disabled";
current-speed = <115200>;
pinctrl-0 = <&uart0_default>;
pinctrl-1 = <&uart0_sleep>;

23
code/nrf-connect/prj.conf
View file

@ -1,13 +1,28 @@
CONFIG_LOG=y
CONFIG_PWM=y
CONFIG_PWM_LOG_LEVEL_DBG=y
CONFIG_CBPRINTF_FP_SUPPORT=y
CONFIG_I2C=y
CONFIG_ADC=y
CONFIG_GPIO=y
CONFIG_BT=y
CONFIG_BT_PERIPHERAL=y
CONFIG_BT_DEBUG_LOG=y
CONFIG_BT_DEBUG_LOG=n
CONFIG_BT_DEVICE_NAME="para"
# CONFIG_BT_SETTINGS=n
# CONFIG_SETTINGS=n
CONFIG_BT_CTLR_TX_PWR_PLUS_8=y
CONFIG_BT_SETTINGS=n
CONFIG_SETTINGS=n
CONFIG_BT_CTLR_TX_PWR_PLUS_8=y
CONFIG_CONSOLE=n
CONFIG_SERIAL=n
CONFIG_PM=y
CONFIG_PM_DEVICE=y
CONFIG_USE_SEGGER_RTT=y
CONFIG_CONSOLE=n
CONFIG_RTT_CONSOLE=n
CONFIG_PINCTRL=y

13
code/nrf-connect/src/main.c
View file

@ -1,4 +1,7 @@
#include <logging/log.h>
#include <zephyr/pm/device.h>
#include <zephyr/pm/pm.h>
#include <zephyr/pm/policy.h>
#include <zephyr/zephyr.h>
#include "prst/adc.h"
@ -38,8 +41,16 @@ int main(void) {
RET_IF_ERR(prst_ble_adv_set_data(&sensors));
RET_IF_ERR(prst_ble_adv_start());
k_msleep(5000);
k_sleep(K_SECONDS(2));
RET_IF_ERR(prst_ble_adv_stop());
k_sleep(K_SECONDS(2));
prst_led_flash(1);
// Example: go to deep sleep.
pm_state_force(0u, &(struct pm_state_info){PM_STATE_SOFT_OFF, 0, 0});
k_sleep(K_SECONDS(2));
}
}

4
code/nrf-connect/src/prst/adc.c
View file

@ -74,14 +74,14 @@ int prst_adc_batt_read(prst_adc_read_t* out) {
int prst_adc_soil_read(float battery_voltage, prst_adc_soil_moisture_t* out) {
// Start PWM.
RET_IF_ERR(pwm_set_pulse_dt(&soil_pwm_dt, pulse));
RET_IF_ERR(pwm_set_dt(&soil_pwm_dt, soil_pwm_dt.period, pulse));
k_msleep(30);
RET_IF_ERR(read_adc_spec(&adc_soil_spec, &out->adc_read));
// Stop PWM.
RET_IF_ERR(pwm_set_pulse_dt(&soil_pwm_dt, 0));
RET_IF_ERR(pwm_set_dt(&soil_pwm_dt, 0, 0));
out->percentage = get_soil_moisture_percent(battery_voltage, buf);
return 0;

3
code/nrf-connect/src/prst/button.c
View file

@ -22,7 +22,8 @@ static void button_pressed(const struct device *dev, struct gpio_callback *cb,
int prst_button_init() {
RET_IF_ERR(!device_is_ready(button.port));
RET_IF_ERR(gpio_pin_configure_dt(&button, GPIO_INPUT));
RET_IF_ERR(gpio_pin_interrupt_configure_dt(&button, GPIO_INT_EDGE_TO_ACTIVE));
// EDGE interrupts consume more power! Just use a LEVEL one.
RET_IF_ERR(gpio_pin_interrupt_configure_dt(&button, GPIO_INT_LEVEL_ACTIVE));
gpio_init_callback(&cb_data, button_pressed, BIT(button.pin));
RET_IF_ERR(gpio_add_callback(button.port, &cb_data));
return 0;