CCF_100/InfiniTime
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Fix wake up lock in twi

Browse Source 
optimize battery code
This commit is contained in:
Joaquim
2021-04-05 15:22:10 +01:00
parent 96961709f3
commit 365e68e6cc
5 changed files with 52 additions and 46 deletions
Download Patch File Download Diff File Expand all files Collapse all files

52
src/components/battery/BatteryController.cpp
View File

@@ -7,11 +7,11 @@
using namespace Pinetime::Controllers;
#define SAMPLES_IN_BUFFER 1
static nrf_saadc_value_t m_buffer_pool[2][SAMPLES_IN_BUFFER];
Battery *Battery::instance = nullptr;
static float voltage = 0.0f;
static int percentRemaining = -1;
Battery::Battery() {
instance = this;
}
void Battery::Init() {
nrf_gpio_cfg_input(chargingPin, (nrf_gpio_pin_pull_t)GPIO_PIN_CNF_PULL_Pullup);
@@ -31,7 +31,7 @@ void Battery::Update() {
void Battery::SaadcInit() {
nrfx_saadc_config_t adcConfig = NRFX_SAADC_DEFAULT_CONFIG;
APP_ERROR_CHECK(nrfx_saadc_init(&adcConfig, SaadcEventHandler));
APP_ERROR_CHECK(nrfx_saadc_init(&adcConfig, adcCallbackStatic));
nrf_saadc_channel_config_t adcChannelConfig = {
.resistor_p = NRF_SAADC_RESISTOR_DISABLED,
@@ -45,40 +45,34 @@ void Battery::SaadcInit() {
.pin_n = NRF_SAADC_INPUT_DISABLED
};
APP_ERROR_CHECK(nrfx_saadc_channel_init(0, &adcChannelConfig));
APP_ERROR_CHECK(nrfx_saadc_buffer_convert(m_buffer_pool[0],SAMPLES_IN_BUFFER));
APP_ERROR_CHECK(nrfx_saadc_buffer_convert(m_buffer_pool[1],SAMPLES_IN_BUFFER));
APP_ERROR_CHECK(nrfx_saadc_buffer_convert(&saadc_value, 1));
}
void Battery::SaadcEventHandler(nrfx_saadc_evt_t const * p_event) {
int avg_sample = 0;
int i = 0;
const float battery_max = 4.18; //maximum voltage of battery ( max charging voltage is 4.21 )
const float battery_min = 3.20; //minimum voltage of battery before shutdown ( depends on the battery )
const float battery_max = 4.18; // maximum voltage of battery ( max charging voltage is 4.21 )
const float battery_min = 3.20; // minimum voltage of battery before shutdown ( depends on the battery )
if (p_event->type == NRFX_SAADC_EVT_DONE) {
APP_ERROR_CHECK(nrfx_saadc_buffer_convert(p_event->data.done.p_buffer, SAMPLES_IN_BUFFER));
if (p_event->type == NRFX_SAADC_EVT_DONE) {
APP_ERROR_CHECK(nrfx_saadc_buffer_convert(&saadc_value, 1));
for (i = 0; i < SAMPLES_IN_BUFFER; i++) {
avg_sample += p_event->data.done.p_buffer[i]; // take N samples in a row
voltage = (static_cast<float>(p_event->data.done.p_buffer[0]) * 2.04f) / (1024 / 3.0f);
voltage = roundf(voltage * 100) / 100;
percentRemaining = static_cast<int>(((voltage - battery_min) / (battery_max - battery_min)) * 100);
percentRemaining = std::max(percentRemaining, 0);
percentRemaining = std::min(percentRemaining, 100);
nrfx_saadc_uninit();
}
avg_sample /= i; // average all the samples out
voltage = (static_cast<float>(avg_sample) * 2.04f) / (1024 / 3.0f);
voltage = roundf(voltage * 100) / 100;
percentRemaining = static_cast<int>(((voltage - battery_min) / (battery_max - battery_min)) * 100);
percentRemaining = std::max(percentRemaining, 0);
percentRemaining = std::min(percentRemaining, 100);
nrfx_saadc_uninit();
}
}
void Battery::adcCallbackStatic(nrfx_saadc_evt_t const *event) {
instance->SaadcEventHandler(event);
}
int Battery::PercentRemaining() {
return percentRemaining;