Search found 1460 matches

by ESP_igrr
Fri Jun 14, 2019 10:57 pm
Forum: ESP32 IDF
Topic: gpio_hold_en persists over esp_restart()
Replies: 1
Views: 119

Re: gpio_hold_en persists over esp_restart()

esp_restart intentionally doesn't touch many bits of hardware. In applications such as light bulbs, even if the program crashes it is still expected that the light should not flicker. GPIOs are also not reconfigured. esp_restart only resets peripherals which may be doing DMA into RAM, to ensure that...
by ESP_igrr
Tue Jun 11, 2019 3:20 pm
Forum: ESP32 IDF
Topic: WiFi Power Save example crash
Replies: 2
Views: 98

Re: WiFi Power Save example crash

Hi JC, The issue is related to configuration of the SPI peripheral used to access the flash chip. We have a fix for this in review at the moment. In the meantime, you should be able to work around the issue by switching to QIO flash mode. This option can be found in menuconfig, under "Serial flasher...
by ESP_igrr
Mon Jun 10, 2019 6:12 pm
Forum: General Discussion
Topic: ESP32 - JTAG flashing and debugging
Replies: 1
Views: 111

Re: ESP32 - JTAG flashing and debugging

Hi Paul85, It is possible to flash the application using JTAG, if the application loaded into the module does not disable or reconfigure JTAG pins. Some versions of the AT application shipped by default on WROOM/WROVER modules do reconfigure JTAG pins as SPI slave pins. If the module comes with such...
by ESP_igrr
Mon Jun 10, 2019 10:16 am
Forum: General Discussion
Topic: Turning off interrupts on core 1
Replies: 4
Views: 330

Re: Turning off interrupts on core 1

Probably not. SPI flash guards are there to guarantee that the other CPU doesn't execute instructions from Flash while the cache is disabled.
by ESP_igrr
Mon Jun 10, 2019 9:45 am
Forum: General Discussion
Topic: Stand Alone SPIFFS Utility
Replies: 2
Views: 186

Re: Stand Alone SPIFFS Utility

Hi Marcwolf, esptool is available as a Windows executable, which is distributed as part of the Arduino-esp32 project. You can also download it separately, the URL is present in arduino's package.json file: https://github.com/espressif/arduino-esp32/blob/7d7824701fe5e22f08555d3e1ce3180a922b2151/packa...
by ESP_igrr
Fri May 31, 2019 3:01 am
Forum: General Discussion
Topic: What happens with SD card if it gets unpowered during write?
Replies: 10
Views: 374

Re: What happens with SD card if it gets unpowered during write?

Typically SD cards don't offer atomicity guarantees, so if the power down happens while FAT sector is being written, the filesystem may be corrupted (not just the last 5 seconds of the data). You can search for "raspberry pi SD card corruption" to get the idea of the problems, although Raspberry typ...
by ESP_igrr
Wed May 22, 2019 11:26 am
Forum: General Discussion
Topic: esp-idf 3.2 problem
Replies: 1
Views: 274

Re: esp-idf 3.2 problem

Please try setting PSRAM type to "auto-detect" in menuconfig: https://docs.espressif.com/projects/esp ... piram-type
by ESP_igrr
Wed May 22, 2019 9:34 am
Forum: ESP-IDF 中文讨论版
Topic: [已解决] NVS分区生成器用于量产UID应该怎么使用好
Replies: 2
Views: 206

Re: NVS分区生成器用于量产UID应该怎么使用好

Perhaps you can generate multiple NVS binaries using the mass manufacturing utility? https://docs.espressif.com/projects/esp ... s_mfg.html
by ESP_igrr
Mon May 20, 2019 9:37 am
Forum: General Discussion
Topic: can't OTA .bin file from SD card
Replies: 4
Views: 1364

Re: can't OTA .bin file from SD card

zoro99: if by "same thing" you mean reading an OTA binary image, then consider using fread function instead of fgets. The latter is meant to be used for text files, while the former will also handle 0x00 bytes which can be found in a binary file.
by ESP_igrr
Tue May 14, 2019 11:52 am
Forum: ESP32 IDF
Topic: ULP RTC Slow memory
Replies: 1
Views: 144

Re: ULP RTC Slow memory

Code: Select all

range 32 8192 if ULP_COPROC_ENABLED
This is a bug in Kconfig, thanks. The range should be 16 ... 4096.

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