arduino-esp32/cores/esp32/esp32-hal-misc.c

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// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "esp32-hal.h"
#include "sdkconfig.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_attr.h"
#include "nvs_flash.h"
#include "nvs.h"
#include "esp_partition.h"
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#include "esp_log.h"
#include "esp_timer.h"
#include <sys/time.h>
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//Undocumented!!! Get chip temperature in Farenheit
//Source: https://github.com/pcbreflux/espressif/blob/master/esp32/arduino/sketchbook/ESP32_int_temp_sensor/ESP32_int_temp_sensor.ino
uint8_t temprature_sens_read();
float temperatureRead()
{
return (temprature_sens_read() - 32) / 1.8;
}
void yield()
{
vPortYield();
}
unsigned long IRAM_ATTR micros()
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{
return (unsigned long) esp_timer_get_time();
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}
unsigned long IRAM_ATTR millis()
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{
return (unsigned long) (esp_timer_get_time() / 1000);
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}
void delay(uint32_t ms)
{
vTaskDelay(ms / portTICK_PERIOD_MS);
}
void IRAM_ATTR delayMicroseconds(uint32_t us)
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{
uint32_t m = micros();
if(us){
uint32_t e = (m + us);
if(m > e){ //overflow
while(micros() > e){
NOP();
}
}
while(micros() < e){
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NOP();
}
}
}
void initVariant() __attribute__((weak));
void initVariant() {}
void init() __attribute__((weak));
void init() {}
void initArduino()
{
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esp_log_level_set("*", CONFIG_LOG_DEFAULT_LEVEL);
esp_err_t err = nvs_flash_init();
if(err == ESP_ERR_NVS_NO_FREE_PAGES){
const esp_partition_t* partition = esp_partition_find_first(ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_DATA_NVS, NULL);
if (partition != NULL) {
err = esp_partition_erase_range(partition, 0, partition->size);
if(!err){
err = nvs_flash_init();
} else {
log_e("Failed to format the broken NVS partition!");
}
}
}
if(err) {
log_e("Failed to initialize NVS! Error: %u", err);
}
init();
initVariant();
}
//used by hal log
const char * IRAM_ATTR pathToFileName(const char * path)
{
size_t i = 0;
size_t pos = 0;
char * p = (char *)path;
while(*p){
i++;
if(*p == '/' || *p == '\\'){
pos = i;
}
p++;
}
return path+pos;
}
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