Search found 23 matches

by ESP_rrtandler
Wed Oct 30, 2024 7:19 am
Forum: General Discussion
Topic: Help with flash encryption
Replies: 2
Views: 618

Re: Help with flash encryption

1)What does disable_dl_encrypt and disable_dl_decrypt does? These 2 options disable encryption/decryption performed directly on the target chip (using the key and encryption algorithm settings taken from target chip). In other words, once you enable these options, you have to work with encrypted ima...
by ESP_rrtandler
Thu Aug 22, 2024 1:38 pm
Forum: ESP-IDF 中文讨论版
Topic: nvs出现相同键值
Replies: 1
Views: 1997

Re: nvs出现相同键值

Hello, The NVS subsystem doesn't overwrite the old values in the NVS pages. It marks old value as deleted and finds a free space where it stores the new value. So it works like a running log. At the moment, when no free space is available for new data, the records marked as erased are reclaimed and ...
by ESP_rrtandler
Mon Aug 12, 2024 1:51 pm
Forum: ESP-IDF 中文讨论版
Topic: 使用nvs_flash_init()这个函数初始化nvs,能启动这个宏CONFIG_APP_BUILD_TYPE_PURE_RAM_APP吗?
Replies: 1
Views: 2331

Re: 使用nvs_flash_init()这个函数初始化nvs,能启动这个宏CONFIG_APP_BUILD_TYPE_PURE_RAM_APP吗?

Hi weimeijia, The CONFIG_APP_BUILD_TYPE_PURE_RAM_APP disables the SPI_FLASH sub system and therefore it is not possible to use the NVS component as it relies on the working SPI_FLASH. In reward, it releases some 26kB of RAM. If your application fits into the memory in default setting (without CONFIG...
by ESP_rrtandler
Wed Jul 17, 2024 8:03 am
Forum: General Discussion
Topic: NVS initialization fails
Replies: 1
Views: 1156

Re: NVS initialization fails

HI @jwachsmuth, I would suggest first commenting out the ESP_ERROR_CHECK(esp_eventLoop_create_default()); to see if there is an interference between the nvs initialisation and anything, that may be already running in parallel to it from the event loop. Then you may simply swap the order of the lines...
by ESP_rrtandler
Mon May 06, 2024 1:59 pm
Forum: ESP-IDF
Topic: Getting external flash to work - many questions!
Replies: 1
Views: 755

Re: Getting external flash to work - many questions!

Hi kevinevans,

You can use ESP IDF examples/storage/ext_flash_fatfs as a starting point to learn, how to let external SPI based flash work with filesystems supported in the ESP IDF.
by ESP_rrtandler
Thu Mar 28, 2024 11:53 am
Forum: ESP-IDF
Topic: Disparity in Heap Needed for NVS Library Initialization
Replies: 2
Views: 1947

Re: Disparity in Heap Needed for NVS Library Initialization

Hi squirtle321, One more note. You may also try to run tests with the same NVS partition size and vary the number of different key - value pairs to see the influence of active data amount on the Key Hash Map heap overhead. Start with empty NVS, make nvs_init and the heap overhead (nvs partition size...
by ESP_rrtandler
Thu Mar 28, 2024 11:12 am
Forum: ESP-IDF
Topic: Disparity in Heap Needed for NVS Library Initialization
Replies: 2
Views: 1947

Re: Disparity in Heap Needed for NVS Library Initialization

Hello squirtle321, The RAM footprint of NVS after initialisation is comprised of 2 components: Item Hash List (namespace, key, chunk index) - size depends on number of active key-value pairs Page manager related footprint - size depends on NVS partition size Run your statistics with various NVS part...
by ESP_rrtandler
Tue Mar 26, 2024 10:14 pm
Forum: General Discussion
Topic: nvs_flash_init_partition returns ESP_ERR_NVS_NOT_ENOUGH_SPACE
Replies: 1
Views: 1296

Re: nvs_flash_init_partition returns ESP_ERR_NVS_NOT_ENOUGH_SPACE

Hi Vincecube, The state of NVS flash you are describing - 3 pages are marked as FULL and one page is marked as FREEING is assumed to be inconsistent for nvs_init function. It expects at least one ACTIVE or UNINITIALIZED page when it sees FREEING page. I am not sure what caused the state you describe...
by ESP_rrtandler
Wed Feb 28, 2024 2:26 pm
Forum: ESP-IDF
Topic: MicroSD problem
Replies: 8
Views: 2259

Re: MicroSD problem

@mtaz78 - Please also check whether you have Enabled PSRAM in menuconfig and set Flash and PSRAM frequiencies to 80MHz
by ESP_rrtandler
Wed Feb 28, 2024 11:07 am
Forum: ESP-IDF
Topic: MicroSD problem
Replies: 8
Views: 2259

Re: MicroSD problem

Hi mtaz78,

Please add following:

Code: Select all

esp_log_level_set("intr_alloc", ESP_LOG_VERBOSE);
Before initialisation code and run both initialisation combinations - sd first, then camera and vice versa. Please post log messages of both cases.