Search found 633 matches

by ESP_Sprite
Fri May 26, 2017 6:06 am
Forum: ESP32 HDK
Topic: VDD_SDIO for ESP32 D2WD
Replies: 10
Views: 469

Re: VDD_SDIO for ESP32 D2WD

Yes, it is eprfectlky capable of working on 3.3V (and actually will not work when fed with only 1.8V). The internal flash chip, however, is an 1.8V part. In order to generate the power supply for that, the ESP32 has an internal LDO to generate 1.8V from its 3.3V power supply. However, this power sup...
by ESP_Sprite
Fri May 26, 2017 1:49 am
Forum: ESP32 HDK
Topic: Is the temperature of the esp32 normal?
Replies: 9
Views: 89

Re: Is the temperature of the esp32 normal?

It's actually returning an ADC value, which unfortunately isn't exactly linearily correspondung to temperature.
by ESP_Sprite
Thu May 25, 2017 8:18 am
Forum: ESP32 HDK
Topic: Is the temperature of the esp32 normal?
Replies: 9
Views: 89

Re: Is the temperature of the esp32 normal?

What exactly are you doing with the chip? Are you sure your voltages are in range, and you're not shorting outputs or something like that? How are you measuring the temperature?
by ESP_Sprite
Thu May 25, 2017 1:53 am
Forum: General Discussion
Topic: HSPI and VSPI, meaning thereof?
Replies: 6
Views: 99

Re: HSPI and VSPI, meaning thereof?

Nah, I don't believe it. There's probably some chip designers named harry and victor. :P I know you're jesting, but it's actually pretty unlikely that they are names... Afaik, all the digital design guys are Chinese, and I assume that if they'd taken a name to use the initial of, they would have ta...
by ESP_Sprite
Wed May 24, 2017 1:58 am
Forum: General Discussion
Topic: HSPI and VSPI, meaning thereof?
Replies: 6
Views: 99

Re: HSPI and VSPI, meaning thereof?

That's... a good question actually. Will ask the digital guys, maybe they know. Edit: Sorry, there's no story there... just random designators. If it makes you feel better, I've always thought of them as the High-speed SPI interface and the Very High-speed SPI interface. Not that the speed actually ...
by ESP_Sprite
Sun May 21, 2017 5:33 am
Forum: ESP32 Arduino
Topic: ESP 32 Pin re-mapping
Replies: 2
Views: 321

Re: ESP 32 Pin re-mapping

Also, in general, it's not that hard. if you use a driver in esp-idf, you actually don't have to do much at all: most drivers will need to be fed the GPIO they act on in the initialization call: just enter any GPIO you want and it will be routed automatically. If you want to do it manually, these ar...
by ESP_Sprite
Sun May 21, 2017 5:18 am
Forum: ESP32 SDK
Topic: Using C++ std::stringstream and heap exceptions
Replies: 2
Views: 57

Re: Using C++ std::stringstream and heap exceptions

That is indeed the sign of a corrupted memory blocklist. One thing that comes to mind: do you exit your task with vTaskDelete? Not doing so (and just returning from the task function) leads to a crash, though I'm not sure anymore if it was this crash or something else.
by ESP_Sprite
Sun May 21, 2017 5:14 am
Forum: Sample Code
Topic: Simple BT to UART bridge
Replies: 1
Views: 142

Re: Simple BT to UART bridge

What you are looking for is SPP/RFComm. Unfortunately, while work is underway to implement it, at the moment esp-idf does not have that functionality yet.
by ESP_Sprite
Sun May 21, 2017 5:12 am
Forum: General Discussion
Topic: Error "53" while flashing ESP32
Replies: 3
Views: 107

Re: Error "53" while flashing ESP32

Hmm, maybe a bad connection or a slightly instable driver then... Glad you got it solved, anyway.
by ESP_Sprite
Sat May 20, 2017 10:18 am
Forum: General Discussion
Topic: wearleveling filesystem image uploading
Replies: 10
Views: 225

Re: wearleveling filesystem image uloading

Fyi, do note that this trick works only when the filesystem is relatively new. Once a bit older, the wear level system will have shuffled some sectors around. You would still be able to mount the flash just fine and you can probably, depending on the state of the wear levelling system, still see the...

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