esp_err_t adc_read(uint16_t *data)
{
ADC_CHECK(data, "parameter pointer is empty", ESP_ERR_INVALID_ARG);
ADC_CHECK(adc_handle, "ADC has not been initialized yet.", ESP_FAIL);
uint16_t ret = 0;
xSemaphoreTake(adc_handle->adc_mux, portMAX_DELAY);
if (adc_handle->config.mode == ADC_READ_TOUT_MODE) {
ret = test_tout(0);
if (ret != 0xFFFF) {
// The working voltage of ADC is designed according to 1.1v. Later, the actual working voltage of ADC is increased to 1.2v, so this scale is added.
ret = ret * 12 / 11;
if (ret > 1023) {
// 10-bit precision ADC
ret = 1023;
}
}
} else if (adc_handle->config.mode == ADC_READ_VDD_MODE) {
ret = phy_get_vdd33();
if (ret != 0xFFFF) {
// The working voltage of ADC is designed according to 1.1v. Later, the actual working voltage of ADC is increased to 1.2v, so this scale is added.
ret = ret * 12 / 11;
}
}
*data = ret;
xSemaphoreGive(adc_handle->adc_mux);
return ESP_OK;
}
void ICACHE_FLASH_ATTR data_func() {
// Read out the sensor data structure from RTC memory
system_rtc_mem_read( SENSOR_DATA_MEM_ADDR, &sensor_data, sizeof(SENSOR_DATA_RTC_MEM) );
// When the system powers on for the first time, the data in the rtc memory is random.
struct esp_platform_saved_param esp_param_t;
user_esp_platform_load_param(&esp_param_t); // Stored in flash
// Load user params to check if the device was successfully registered to the server
// If it wasn't, it usually returns 255 (from the flash.)
if(sensor_data.init_flg!=INIT_MAGIC || sensor_data.cnt>SENSOR_DATA_NUM ) {
// This case runs when we first power on or when it time to flush the RTC memory of old data.
if(esp_param_t.activeflag!=1) { // If registered & activated
user_esp_platform_init(); // Router is not configured. Setup softAP. Wait for config.
#ifdef SERVER_SSL_ENABLE
user_webserver_init(SERVER_SSL_PORT);
#else
user_webserver_init(SERVER_PORT);
#endif
} else { // was connected! So we set init magic to exit the setup loop
sensor_data.init_flg = INIT_MAGIC;
sensor_data.cnt = 0;
system_rtc_mem_write(SENSOR_DATA_MEM_ADDR, &sensor_data, sizeof(SENSOR_DATA_RTC_MEM));
__SET__DEEP_SLEEP__WAKEUP_NO_RF__;
system_deep_sleep(100000);
}
} else { // This is where the measurements are made
uint16 vdd_val = 0;
if(sensor_data.cnt<0 || sensor_data.cnt>=SENSOR_DATA_NUM)
sensor_data.cnt=0; // range check and resets counter if needed
/* Reads power supply voltage, byte 107 of init_data.bin should be set to 0xFF.
* Replace with your own code.*/
sensor_data.data[sensor_data.cnt++] = (uint16)(phy_get_vdd33());
system_rtc_mem_write( SENSOR_DATA_MEM_ADDR, &sensor_data, sizeof(SENSOR_DATA_RTC_MEM) );
// Setup next sleep cycle
if(sensor_data.cnt==SENSOR_DATA_NUM-1) { __SET__DEEP_SLEEP__WAKEUP_NORMAL__; }
else { __SET__DEEP_SLEEP__WAKEUP_NO_RF__; }
// Uploads or go to sleep
if(sensor_data.cnt == SENSOR_DATA_NUM) { user_esp_platform_init(); }
else { system_deep_sleep(SENSOR_DEEP_SLEEP_TIME); }
}
}
