Search found 8917 matches

by ESP_Sprite
Fri Mar 29, 2024 2:05 am
Forum: ESP-IDF
Topic: Check if internal flash is busy
Replies: 1
Views: 94

Re: Check if internal flash is busy

That's technically not possible. When writing to flash, code executing from the flash cache isn't available and as such all but the very highest-priority task will be suspended. That should include other tasks that are about to do something to flash. Any chance you can post the error and/or your code?
by ESP_Sprite
Fri Mar 29, 2024 2:03 am
Forum: ESP-IDF
Topic: ESP32S3: RTC main counter interrupt while awake
Replies: 5
Views: 366

Re: ESP32S3: RTC main counter interrupt while awake

Why are you messing with the RTC in that way? As the header directory indicates, those functions are private to ESP-IDF; it's very likely that ESP-IDF also uses the RTC for stuff and your code interferes.
by ESP_Sprite
Fri Mar 29, 2024 1:57 am
Forum: ESP-IDF
Topic: SPI DMA crashes when using WiFi
Replies: 5
Views: 292

Re: SPI DMA crashes when using WiFi

Oooh, if the image data is in flash, that'll trigger this: as flash isn't DMA'able on most chips, the driver needs to copy the thing to RAM first. In theory, it could indeed do this in small chunks, triggering to re-copy on every DMA chunk, but in practice it doesn't do this: it would make the SPI d...
by ESP_Sprite
Fri Mar 29, 2024 1:54 am
Forum: Hardware
Topic: Confuse about esp32 3.3V and 0-30V from electric meter S0 pulse interface
Replies: 2
Views: 73

Re: Confuse about esp32 3.3V and 0-30V from electric meter S0 pulse interface

An S0 connector itself does not output a voltage; the levels in that document specify what voltage you can apply to it externally without it breaking. Technically applying 3.3V is outside the specs (it says minimum is 5V) but I imagine it works with most meters anyway.
by ESP_Sprite
Fri Mar 29, 2024 12:21 am
Forum: General Discussion
Topic: SRAM and FLASH memory considerations on replicating ESP32 WROOVER-E on bare PCB
Replies: 1
Views: 125

Re: SRAM and FLASH memory considerations on replicating ESP32 WROOVER-E on bare PCB

Vilius wrote:
Thu Mar 28, 2024 5:34 pm
You just swap the memory ICs to corresponding alternatives and continue to the programming via ESP-IDF?
Yes. There is no 'mating' between the ESP32 and flash chips.
by ESP_Sprite
Thu Mar 28, 2024 12:23 pm
Forum: ESP-IDF
Topic: ESP32S3: RTC main counter interrupt while awake
Replies: 5
Views: 366

Re: ESP32S3: RTC main counter interrupt while awake

Sorry, still nothing.
by ESP_Sprite
Thu Mar 28, 2024 1:59 am
Forum: ESP-IDF
Topic: ADC and accurate timing
Replies: 3
Views: 240

Re: ADC and accurate timing

If you use the ESP32-C6, you may be able to use the ETM to do a bunch of those things with a fairly high degree of precision. (Although I'm not sure about the support for this in ESP-IDF, you may want to look that up as well.)
by ESP_Sprite
Thu Mar 28, 2024 1:56 am
Forum: ESP-IDF
Topic: Bluetooth options disappeared from menuconfig
Replies: 4
Views: 111

Re: Bluetooth options disappeared from menuconfig

Do you have perhaps a custom component which name clashes with one in ESP-IDF?
by ESP_Sprite
Thu Mar 28, 2024 1:51 am
Forum: Hardware
Topic: ESP32H2 module programming
Replies: 1
Views: 63

Re: ESP32H2 module programming

Honestly, the easiest way is to simply incorporate in-circuit flashing into your PCB. The H2 has an USB-serial-JTAG device, so it can be as easy as routing the required pins to a test pad or USB connector, plus making sure GPIO9 is available somewhere so you can ground it to force download mode.