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by ESP_Sprite
Mon Nov 19, 2018 2:50 am
Forum: ESP32 IDF
Topic: How to enable 32.768 kHz XTAL?
Replies: 1
Views: 14

Re: How to enable 32.768 kHz XTAL?

You also need to add a pair of load capacitors. See eg the ESP320-Wrover-Kit schematic for an example.
by ESP_Sprite
Mon Nov 19, 2018 2:30 am
Forum: ESP32 IDF
Topic: AWS IoT Subscribe/Publish example problem
Replies: 3
Views: 73

Re: AWS IoT Subscribe/Publish example problem

Moved to the ESP32 IDF subforum.
by ESP_Sprite
Mon Nov 19, 2018 2:29 am
Forum: Hardware
Topic: errors while connecting esp32 nodemcu to relay
Replies: 1
Views: 26

Re: errors while connecting esp32 nodemcu to relay

Moved to the hardware subforum.
by ESP_Sprite
Mon Nov 19, 2018 2:28 am
Forum: ESP32 IDF
Topic: ESP32 BT write echo back once
Replies: 1
Views: 29

Re: ESP32 BT write echo back once

Moved to the ESP32 IDF forum.
by ESP_Sprite
Sun Nov 18, 2018 12:33 pm
Forum: General Discussion
Topic: Issue using code/codebox in posts
Replies: 3
Views: 56

Re: Issue using code/codebox in posts

There's been some funny business going on with the code tag since we ran a forum software upgrade... Last time I checked it's been fixed, but because of Reasons, it may still linger in your browsers cache.
by ESP_Sprite
Sun Nov 18, 2018 3:11 am
Forum: General Discussion
Topic: Interrupt low Latency - again
Replies: 4
Views: 112

Re: Interrupt low Latency - again

Unfortunately, that is harder as the Xtensa needs a fair bit of code to get from an interrupt vector back into an environment that is usable for C... what kind of latency are you getting now?
by ESP_Sprite
Sat Nov 17, 2018 3:17 am
Forum: Hardware
Topic: Sparkfun ESP32 Thing Boot Loop
Replies: 1
Views: 60

Re: Sparkfun ESP32 Thing Boot Loop

The brownout detector triggering usually indicates a power supply issue. Can you try a different USB cable, or maybe powering the Thing from an external source?
by ESP_Sprite
Fri Nov 16, 2018 4:09 am
Forum: ESP32 IDF
Topic: Keep getting RTCWDT_SYS_RESET
Replies: 1
Views: 39

Re: Keep getting RTCWDT_SYS_RESET

Where's your main() function and what does it do?
by ESP_Sprite
Fri Nov 16, 2018 4:02 am
Forum: General Discussion
Topic: Interrupt low Latency - again
Replies: 4
Views: 112

Re: Interrupt low Latency - again

An obvious solution would be to not calculate as a float, so you don't have to mess around with floats. Instead, store it as a fixed-point number. I'm also not sure what your lookup() function does, but if it uses floating point numbers, you may also be able to get away with smallifying it by making...
by ESP_Sprite
Fri Nov 16, 2018 3:58 am
Forum: General Discussion
Topic: Does ESP32 have instruction set to accelerated math computing?
Replies: 4
Views: 175

Re: Does ESP32 have instruction set to accelerated math computing?

No / hard to say. NEON is ARM-specific and SIMD is kinda vague. I know the MAC instruction is SIMD-ish, though.

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