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espressif / esp-idf

Espressif IoT Development Framework. Official development framework for Espressif SoCs.
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Crash when waking up from light sleep #1024

Closed gatispei closed 7 years ago

gatispei commented 7 years ago

Hello,

I am attempting to use light sleep in my ESP32 application, but while the test case works fine, in app that contains "more code" it crashes on wakeup:

First the app that works:

include "esp_wifi.h"

include "esp_system.h"

include "esp_event.h"

include "esp_event_loop.h"

include "esp_log.h"

void app_main(void) { printf("light_sleep_enter\n"); esp_sleep_enable_timer_wakeup(1000000); int ret = esp_light_sleep_start(); printf("light_sleep: %d\n", ret); }

Serial output from the working app: 2017.09.21-10:17:46.405<2>: target: light_sleep_enter 2017.09.21-10:17:47.409<2>: target: light_sleep: 0

Now here is the app that crashes on wakeup - note how the additional code is actually never reached:

include "esp_wifi.h"

include "esp_system.h"

include "esp_event.h"

include "esp_event_loop.h"

include "esp_log.h"

static esp_err_t event_handler(void ctx, system_event_t event) { switch (event->event_id) { case SYSTEM_EVENT_STA_GOT_IP: { wifi_ap_record_t ap_rec; esp_wifi_sta_get_ap_info(&ap_rec); printf("wifi got ip, rssi: %d\n", ap_rec.rssi); break; } default: break; } return ESP_OK; }

void app_main(void) { printf("light_sleep_enter\n"); esp_sleep_enable_timer_wakeup(1000000); int ret = esp_light_sleep_start(); printf("light_sleep: %d\n", ret);

tcpip_adapter_init(); esp_event_loop_init(event_handler, NULL); esp_log_level_set("wifi", ESP_LOG_NONE); wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT(); esp_wifi_init(&cfg); esp_wifi_set_storage(WIFI_STORAGE_FLASH); esp_wifi_set_ps(WIFI_PS_MODEM); esp_wifi_set_mode(WIFI_MODE_STA); wifi_config_t sta_config = { .sta = { .ssid = "xxx", .password = "1234567890", }, }; esp_wifi_set_config(WIFI_IF_STA, &sta_config); esp_wifi_start(); }

The output on serial:

2017.09.21-10:12:58.583<2>: target: ?p?~plight_sleep_enter 2017.09.21-10:12:59.578<2>: target: Guru Meditation Error of type IllegalInstruction occurred on core 0. Exception was unhandled. 2017.09.21-10:12:59.583<2>: target: Register dump: 2017.09.21-10:12:59.589<2>: target: PC : 0x40112162 PS : 0x00060933 A0 : 0x800fc3cd A1 : 0x3ffbcc70 2017.09.21-10:12:59.594<2>: target: A2 : 0x00000000 A3 : 0x3ffb12f8 A4 : 0x00000001 A5 : 0x00000003 2017.09.21-10:12:59.605<2>: target: A6 : 0x00000022 A7 : 0x00060023 A8 : 0x8011215f A9 : 0x3ffbcc50 2017.09.21-10:12:59.610<2>: target: A10 : 0x3ff480b4 A11 : 0x4c4b4c4b A12 : 0x3ff48070 A13 : 0x01000000 2017.09.21-10:12:59.620<2>: target: A14 : 0x00000080 A15 : 0x00000001 SAR : 0x00000016 EXCCAUSE: 0x00000000 2017.09.21-10:12:59.626<2>: target: EXCVADDR: 0x00000000 LBEG : 0x400014fd LEND : 0x4000150d LCOUNT : 0xfffffffb 2017.09.21-10:12:59.626<2>: target: 2017.09.21-10:12:59.647<2>: target: Backtrace: 0x40112162:0x3ffbcc70 0x400fc3ca:0x3ffbcc90 0x400d0af6:0x3ffbcd60 2017.09.21-10:12:59.648<2>: target: 2017.09.21-10:12:59.648<2>: target: Rebooting... 2017.09.21-10:12:59.775<2>: target: light_sleep_enter 2017.09.21-10:13:00.775<2>: target: Guru Meditation Error of type IllegalInstruction occurred on core 0. Exception was unhandled. 2017.09.21-10:13:00.775<2>: target: Register dump: 2017.09.21-10:13:00.780<2>: target: PC : 0x40112162 PS : 0x00060933 A0 : 0x800fc3cd A1 : 0x3ffbcc70 2017.09.21-10:13:00.791<2>: target: A2 : 0x00000000 A3 : 0x3ffb12f8 A4 : 0x00000001 A5 : 0x00000003 2017.09.21-10:13:00.796<2>: target: A6 : 0x00000022 A7 : 0x00060023 A8 : 0x8011215f A9 : 0x3ffbcc50 2017.09.21-10:13:00.807<2>: target: A10 : 0x3ff480b4 A11 : 0x4c4b4c4b A12 : 0x3ff48070 A13 : 0x01000000 2017.09.21-10:13:00.812<2>: target: A14 : 0x00000080 A15 : 0x00000001 SAR : 0x00000016 EXCCAUSE: 0x00000000 2017.09.21-10:13:00.823<2>: target: EXCVADDR: 0x00000000 LBEG : 0x400014fd LEND : 0x4000150d LCOUNT : 0xfffffffb 2017.09.21-10:13:00.823<2>: target: 2017.09.21-10:13:00.839<2>: target: Backtrace: 0x40112162:0x3ffbcc70 0x400fc3ca:0x3ffbcc90 0x400d0af6:0x3ffbcd60 2017.09.21-10:13:00.839<2>: target: 2017.09.21-10:13:00.840<2>: target: Rebooting...

This is observed using current ESP-IDF head commit: 3924594aed7f44a09b6137479ca1ca18d138c310 Attached is sdkconfig as used to demonstrate the problem and the app binaries that crash

Best regards, Gatis test.elf.zip test.elf.zip sdkconfig.txt

gatispei commented 7 years ago

Tried setting CONFIG_ESP32_DEEP_SLEEP_WAKEUP_DELAY to 2000, 5000, 10000, 100000, crash did not change.

I am using ESP-WROOOM-32 module BTW, with original flash chip, MACADDR:24:0a:c4:0f:1b:6c

The board has no problems waking up from deep sleep (no watchdog reboots when waking up from deep sleep).

Tried it on 2 other boards, with same results.

gatispei commented 7 years ago

Confirmed same behaviour with DevBoard

igrr commented 7 years ago

Fixed in https://github.com/espressif/esp-idf/commit/3f761e1a833b0088dac4171f16b6eb0689379f56.

gatispei commented 7 years ago

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_DATA_ADDR 0x2b0000

unsigned char xxx[256];

void app_main(void) { spi_flash_init(); spi_flash_read_encrypted(FLASH_NV_DATA_ADDR, &xxx, 16); // spi_flash_read(FLASH_NV_DATA_ADDR, &xxx, 16); printf("%llu: light sleep start\n", 0llu); esp_sleep_enable_timer_wakeup(1000000); esp_light_sleep_start(); printf("%llu: light sleep out\n", 1llu); }

The key part here is spi_flash_read_encrypted - without that call it wakes up just fine. With it I get either silent reboot or some garbage on serial output + reboot.

SDK version: 845c3fba3515df90f20ac6ee552aed504375b9d4

Attached is sdkconfig as used to compile the code

Just checked that doing regular spi_flash_read also works (the cpu wakes just fine). Also note that on board the flash encryption is not actually enabled. Tried it on dev-board - same problem.

2017-09-23 9:39 GMT+03:00 Ivan Grokhotkov notifications@github.com:

Closed #1024 https://github.com/espressif/esp-idf/issues/1024.

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-- Gatis