Search found 8990 matches

by ESP_Sprite
Fri Apr 12, 2024 2:19 am
Forum: General Discussion
Topic: Download from S3 bucket
Replies: 3
Views: 185

Re: Download from S3 bucket

Code: Select all

int buffer_size = snprintf(NULL, 0, "%d", content_length);
Can you explain this line?
by ESP_Sprite
Thu Apr 11, 2024 9:36 am
Forum: General Discussion
Topic: Connect j-link to ESP32S3 chip
Replies: 1
Views: 174

Re: Connect j-link to ESP32S3 chip

I cannot comment on any current activities / plans wrt cooperating with companies (mostly because I have no clue but also because I'm not sure if that's public), but we've always been forthcoming in documenting our stuff (both in the form as technical reference manuals as well as source code, e.g. t...
by ESP_Sprite
Thu Apr 11, 2024 9:31 am
Forum: General Discussion
Topic: [IoT] ESP Product Selector IoT Espressif
Replies: 3
Views: 4157

Re: [IoT] ESP Product Selector IoT Espressif

My colleagues are interested in RISC-V. Unfortunately, the product selector doesn't appear to let you filter for the CPU type (Xtensa or RISC-V). For most people, that is pretty uninteresting as it's abstracted away by any SDK you'd use it with. FWIW, at this point the C2, C3, C6, H2 and the future...
by ESP_Sprite
Thu Apr 11, 2024 12:21 am
Forum: ESP-AT
Topic: Flashing esp-at firmware via esp-prog
Replies: 1
Views: 151

Re: Flashing esp-at firmware via esp-prog

Did you copy 60-openocd.rules to your udev rules directory?
by ESP_Sprite
Thu Apr 11, 2024 12:13 am
Forum: Report Bugs
Topic: MQTT project linker error.
Replies: 3
Views: 554

Re: MQTT project linker error.

I tried to build the same project with eclipse, according to your instructions, but faced the similar linker problems. Are you using another toolchain than gcc? If you post that error here, you may have a better chance of us being able to solve it. Could you please tell me the documents names ( the...
by ESP_Sprite
Thu Apr 11, 2024 12:11 am
Forum: ESP-IDF
Topic: FreeRTOS Task causes TWDT triggered
Replies: 14
Views: 1233

Re: FreeRTOS Task causes TWDT triggered

My point is that the vTaskDelay doesn't do anything with a wait time of less than 10mS, so having it there or not having it there does not make a difference, as you found. This is expected behaviour.

If your question is why your task triggers the TWDT in general, I'd suggest you post its full code.
by ESP_Sprite
Thu Apr 11, 2024 12:03 am
Forum: Hardware
Topic: How those voltage levels for brownout of ESP32S3 are defined if there is no internal voltage references implemented?
Replies: 8
Views: 1268

Re: How those voltage levels for brownout of ESP32S3 are defined if there is no internal voltage references implemented?

Damn, I found Shotky diode SB560 gone into shortcircuit on my board which made voltage from battery line back into stabilizer circuit which should not happen. I replaced it and now everything work like a charm. That was unexpected, glad you found it, and thanks for posting well-commented, working c...
by ESP_Sprite
Wed Apr 10, 2024 12:23 am
Forum: ESP32 Arduino
Topic: MCU speed vs Task Manager
Replies: 5
Views: 644

Re: MCU speed vs Task Manager

what kind of ACK is it? There is no ACK in UART serial data transmission, it is asynchronous data transmission between transmitter and receiver, there is transmission even if the receiver is not connected.... I read it as an ACK in the protocol overlaid on the UART. As unchecked data streams are us...
by ESP_Sprite
Wed Apr 10, 2024 12:20 am
Forum: General Discussion
Topic: memcpy problems when switching from arduino to espIDF
Replies: 7
Views: 699

Re: memcpy problems when switching from arduino to espIDF

Fwiw, the issue is indeed that you're copying C++ objects. Issue there is that you get a sort of 'siamese twin' if you do that. Say you have a string calles string1, and you set it to "hello". The string allocates memory for that 'hello' and stores a pointer to it inside the string object. Now you m...
by ESP_Sprite
Tue Apr 09, 2024 9:10 am
Forum: ESP-IDF
Topic: esp_wifi_init return ESP_ERR_NO_MEM
Replies: 2
Views: 314

Re: esp_wifi_init return ESP_ERR_NO_MEM

The WiFi stack can't entirely reside in PSRAM; it still needs some internal memory. Maybe you have too little of that, or it's too fragmented.