Search found 4574 matches
- Thu Apr 15, 2021 8:43 am
- Forum: ESP32 Arduino
- Topic: Where to find the archives source code?
- Replies: 2
- Views: 81
Re: Where to find the archives source code?
Those are (mostly) esp-idf libraries; the sources are in esp-idf. See e.g. here for how they get built.
- Thu Apr 15, 2021 8:40 am
- Forum: ESP32 Arduino
- Topic: Com port shuts down when uploading ESP32
- Replies: 6
- Views: 174
Re: Com port shuts down when uploading ESP32
ESP-Spirit I'm not sure what you mean by "Are you powering the ESP32 through the 3.3V generated by that Cp2104 chip, perhaps?". I am using the USB cable. In all likelihood, that USB cable either uses the CP2104 chip in it as the source for 3.3V, or has some other small LDO that delivers it. Either ...
- Wed Apr 14, 2021 1:15 am
- Forum: ESP32 Arduino
- Topic: Com port shuts down when uploading ESP32
- Replies: 6
- Views: 174
Re: Com port shuts down when uploading ESP32
Are you powering the ESP32 through the 3.3V generated by that Cp2104 chip, perhaps?
- Wed Apr 14, 2021 1:12 am
- Forum: ESP-IDF
- Topic: pin timer callback to specific core?
- Replies: 2
- Views: 124
Re: pin timer callback to specific core?
From what I call, the esp_timer subsystem does callbacks from its own task; it may be configurable in Menuconfig on what core it runs. Esp_timer is a shared resource as in: if something else has scheduled a callback at the same time as your program, your callback could be delayed until the earlier c...
- Wed Apr 14, 2021 1:09 am
- Forum: ESP-IDF
- Topic: Problem with reboot W/O backtrace on ESP32 - esp-idf 3.0.9
- Replies: 9
- Views: 372
Re: Problem with reboot W/O backtrace on ESP32 - esp-idf 3.0.9
Do you have enough decoupling on your voltage lines? Especially with a slow-reacting power supply, putting a few uF near the ESP32 itself may help. (Also, only just saw you're using ESP-IDF 3.0 - that one went out of support a while ago. Not saying it'll solve your issue, but you may want to think o...
- Wed Apr 14, 2021 12:59 am
- Forum: ESP-IDF
- Topic: Broadcasting data via classic bluetooth
- Replies: 2
- Views: 107
Re: Broadcasting data via classic bluetooth
You're probably better off poking sales @ espressif . com with this question; they have experience getting people through testing procedures like that.
- Tue Apr 13, 2021 5:48 am
- Forum: General Discussion
- Topic: RTC slows down, affecting DMA and serial output
- Replies: 4
- Views: 186
Re: RTC slows down, affecting DMA and serial output
A busy interrupt could impact how everything else that is CPU bound runs, but I'm having a hard time explaining e.g. the baud rate change, as this is something set in hardware. Can I ask what hardware you are using, and would you be OK with sharing code that shows this effect?
- Tue Apr 13, 2021 5:37 am
- Forum: ESP32 Arduino
- Topic: Why SSD1306 OLED display get scrambled text when printing messages from tasks pinned to Core0 in RTOS?
- Replies: 1
- Views: 98
Re: Why SSD1306 OLED display get scrambled text when printing messages from tasks pinned to Core0 in RTOS?
The only thing I can think of is that display.display() is still doing things even after the call itself returns; as the mutex is unlocked after, perhaps the 2nd thread overwrites some information it uses. You'd need to take a good, hard look at the lib code to see if that's true, though.
- Tue Apr 13, 2021 1:53 am
- Forum: ESP-IDF
- Topic: Problem with reboot W/O backtrace on ESP32 - esp-idf 3.0.9
- Replies: 9
- Views: 372
Re: Problem with reboot W/O backtrace on ESP32 - esp-idf 3.0.9
Still sounds like a power issue, to be honest... I am applying 3.6V on VIN with 1A limit on a power supply so it can't come from power supply I guess. VIN? Of what devboard? Many devboards have a regulator that requires a larger voltage difference between Vin and the output 3.3V. For instance, the A...
- Tue Apr 13, 2021 1:47 am
- Forum: Hardware
- Topic: ESP8266-DEVKITC Communication
- Replies: 1
- Views: 101
Re: ESP8266-DEVKITC Communication
Are you sure you're using an USB cable capable of data transfers, and not one that is power-only?