Search found 19 matches

by gatisp
Wed Jan 17, 2018 7:42 pm
Forum: ESP-IDF
Topic: ESP32 Wifi Station Modem Sleep Delay
Replies: 5
Views: 8975

Re: ESP32 Wifi Station Modem Sleep Delay

By long I mean 3+ seconds. See attached image - more than 3 secs (1second per horizontal division)

This is compiled with current esp32 sdk head (1c3dd23fe0c547c5cdcd6a01c111145c572dab91)
Attached sdkconfig as used in app.
by gatisp
Tue Jan 16, 2018 7:43 pm
Forum: ESP-IDF
Topic: ESP32 Wifi Station Modem Sleep Delay
Replies: 5
Views: 8975

Re: ESP32 Wifi Station Modem Sleep Delay

Any news on this?

Still observing long delay on ESP32 in station mode after connect to AP before modem sleep kicks in...
by gatisp
Mon Oct 30, 2017 10:15 am
Forum: ESP-IDF
Topic: esp_wifi_set_country returns ESP_ERR_WIFI_ARG
Replies: 2
Views: 5210

Re: esp_wifi_set_country returns ESP_ERR_WIFI_ARG

Same results with WIFI_COUNTRY_POLICY_MANUAL...
by gatisp
Mon Oct 30, 2017 8:05 am
Forum: ESP-IDF
Topic: esp_wifi_set_country returns ESP_ERR_WIFI_ARG
Replies: 2
Views: 5210

esp_wifi_set_country returns ESP_ERR_WIFI_ARG

Hello, I wanted to limit the possible channels the station is scanning when trying to connect using the esp_wifi_set_country API: wifi_country_t country = { .cc = "EU", .schan = 3, .nchan = 1, .policy = WIFI_COUNTRY_POLICY_AUTO, }; int ret = esp_wifi_set_country(&country); // returns ESP_ERR_WIFI_AR...
by gatisp
Sun Oct 29, 2017 11:50 am
Forum: ESP-IDF
Topic: esp_wake_deep_sleep not called
Replies: 0
Views: 2974

esp_wake_deep_sleep not called

Hello, It seems that after using light sleep in an app and then going to deep sleep the deep sleep wake stub is not called after waking from deep sleep. Here is a sample program that shows the problem: #include "freertos/FreeRTOS.h" #define DEEP_SLEEP_STATUS_ADDR 0x3ff81ff8 #define DEEP_SLEEP_STATUS...
by gatisp
Tue Sep 26, 2017 7:18 pm
Forum: ESP-IDF
Topic: Crash when waking up from light sleep
Replies: 11
Views: 19941

Re: Crash when waking up from light sleep

Thanks ESP_igrr, the light sleep does work now!
by gatisp
Tue Sep 26, 2017 7:09 pm
Forum: General Discussion
Topic: Reducing clock frequency
Replies: 7
Views: 20381

Re: Reducing clock frequency

It seems that changing the cpu freq to 2Mhz using the rtc_clk_cpu_freq_set does not work now. Using the simple app: #include "esp_system.h" #include "soc/rtc.h" #include "rom/uart.h" void app_main(void) { printf("before freq set\n"); uart_tx_wait_idle(0); rtc_clk_cpu_freq_set(RTC_CPU_FREQ_2M); // rt...
by gatisp
Tue Sep 26, 2017 5:16 am
Forum: ESP-IDF
Topic: Crash when waking up from light sleep
Replies: 11
Views: 19941

Re: Crash when waking up from light sleep

Just to explain why we need spi_flash_read_encrypted is because we are planning to use the very cool feature of esp32 - encrypted flash. And when using encrypted flash the bootloader is doing spi_flash_read_encrypted to load partition table or something thus preventing light sleep in apps that use e...
by gatisp
Tue Sep 26, 2017 5:06 am
Forum: ESP-IDF
Topic: Crash when waking up from light sleep
Replies: 11
Views: 19941

Re: Crash when waking up from light sleep

Hello, So I have investigated the problem some more and found that actual culprit of esp32 not being able to wake from light sleep is call to Cache_Flush_rom(0); called by Cache_Flush(0); called by spi_flash_mmap_pages(); called by spi_flash_mmap called by spi_flash_read_encrypted when I comment out...
by gatisp
Sat Sep 23, 2017 7:59 pm
Forum: ESP-IDF
Topic: Crash when waking up from light sleep
Replies: 11
Views: 19941

Re: Crash when waking up from light sleep

Thanks esp_igrr, just tried the fix, the situation has improved, but there is still a problem with light sleep. I have boiled it down to following code where there seems to happen some random crash on wakeup: #include "esp_spi_flash.h" #include "nvs_flash.h" #include "esp_system.h" #define FLASH_NV_...