Espressif Systems ESP8266EX - Examples of Forced Sleep

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3. Sample Codes
3.4.2. Examples of Forced Sleep
The forced-sleep interface can be called, and the RF circuit can be closed mandatorily so
as to lower the power.
Example One: Modem-sleep Mode (RF Disabled)
󰲧󰲧󰲧󰲧#define󰲧FPM_SLEEP_MAX_TIME󰲧󰲧󰲧󰲧󰲧󰲧󰲧 0xFFFFFFF
void󰲧fpm_wakup_cb_func1(void)
{
󰲧󰲧󰲧󰲧Wi-Fi_fpm_close();󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧//󰲧disable󰲧force󰲧sleep󰲧function
󰲧󰲧󰲧󰲧Wi-Fi_set_opmode(STATION_MODE);󰲧󰲧󰲧󰲧󰲧󰲧//󰲧set󰲧station󰲧mode
󰲧󰲧󰲧󰲧Wi-Fi_station_connect();󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧//󰲧connect󰲧to󰲧AP
}
void󰲧user_func(…)
{
󰲧󰲧󰲧󰲧…
󰲧󰲧󰲧󰲧Wi-Fi_station_disconnect();
󰲧󰲧󰲧󰲧Wi-Fi_set_opmode(NULL_MODE);󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧//󰲧set󰲧Wi-Fi󰲧mode󰲧to󰲧null󰲧mode.
󰲧󰲧󰲧󰲧Wi-Fi_fpm_set_sleep_type(MODEM_SLEEP_T);󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧//󰲧modem󰲧sleep
󰲧󰲧󰲧󰲧Wi-Fi_fpm_open();󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧//󰲧enable󰲧force󰲧sleep
#ifdef󰲧SLEEP_MAX
/*󰲧For󰲧modem󰲧sleep,󰲧FPM_SLEEP_MAX_TIME󰲧can󰲧only󰲧be󰲧wakened󰲧by󰲧calling󰲧Wi-Fi_fpm_do_wakeup.󰲧
*/
󰲧󰲧󰲧󰲧Wi-Fi_fpm_do_sleep(FPM_SLEEP_MAX_TIME);
#else
//󰲧wakeup󰲧automatically󰲧when󰲧timeout.
󰲧󰲧󰲧󰲧Wi-Fi_fpm_set_wakeup_cb(fpm_wakup_cb_func1)；󰲧󰲧󰲧//󰲧Set󰲧wakeup󰲧callback
󰲧󰲧󰲧󰲧󰲧Wi-Fi_fpm_do_sleep(50*1000);
#endif
󰲧󰲧󰲧󰲧…
}
#ifdef󰲧SLEEP_MAX
void󰲧func1(void)
{
󰲧󰲧󰲧󰲧Wi-Fi_fpm_do_wakeup();
󰲧󰲧󰲧󰲧Wi-Fi_fpm_close();󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧//󰲧disable󰲧force󰲧sleep󰲧function
⚠ Notice:
•
When forced-sleep interface is called, the chip will not enter sleep mode instantly, it will enter sleep
mode when the system is executing the idle task.
•
Below are the sample codes for sleep modes.
Espressif
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2017.05