Search found 922 matches

by ESP_Sprite
Wed Aug 23, 2017 4:47 am
Forum: ESP32 SDK
Topic: JTAG (OpenOCD) with WinBond Flash Works, Fails with Macronix Flash
Replies: 2
Views: 6

Re: JTAG (OpenOCD) with WinBond Flash Works, Fails with Macronix Flash

Fyi, I think this may be a bug in the VisualGDB stub that does the actual flashing. If you can flash this chip over the serial port (esp-idf 'make flash') but not in VisualGDB, you may be better off asking the VisualGDB people.
by ESP_Sprite
Wed Aug 23, 2017 1:45 am
Forum: General Discussion
Topic: Problem with Hornbill ESP32 dev (Brownout detector was triggered)
Replies: 1
Views: 36

Re: Problem with Hornbill ESP32 dev (Brownout detector was triggered)

This is most likely a power supply issue. My guess is that you're running this from USB? Can you try another USB power source and/or a different USB cable?
by ESP_Sprite
Tue Aug 22, 2017 7:03 am
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 26
Views: 306

Re: What would you like to see in The Next Chip?

No silicon bugs? But where else would our software developers get the thrill of running into a problem and not knowing if it's the chip or their program? And what other excuse would they have to talk to the digital guys? /s
by ESP_Sprite
Tue Aug 22, 2017 4:25 am
Forum: ESP32 HDK
Topic: WiFi power spikes
Replies: 4
Views: 89

Re: WiFi power spikes

Fyi, just talked to a colleague: I may have recognized the spike wrongly; it's more likely to be a WiFi Tx spike.
by ESP_Sprite
Tue Aug 22, 2017 2:51 am
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 26
Views: 306

Re: What would you like to see in The Next Chip?

- Hardware accelerated graphics: What exactly would you like to see? We already have the hardware to control parallel displays in hardware, is there anything you'd like to see added to that? - More speed on GPIO: Will look into that. Agreed that the APB bottleneck feels somewhat uncomfortable for bi...
by ESP_Sprite
Tue Aug 22, 2017 2:28 am
Forum: General Discussion
Topic: Simplest high quality beep
Replies: 3
Views: 65

Re: Simplest high quality beep

Can it be hackish? If so, something thay may work is taking the two 8-bit DACs and using a resistor network to hook them together in an 1:256 ratio? If you do this, you effectively have an 16-bit DAC (although the exact precision depends on the tolerance of the resistors, as well as the load on the ...
by ESP_Sprite
Tue Aug 22, 2017 1:01 am
Forum: ESP32 Arduino
Topic: Serial and WiFi LED Strip Unreliability
Replies: 3
Views: 79

Re: Serial and WiFi LED Strip Unreliability

Sorry, no idea, I personally don't use Arduino. Your code doesn't have any obvious flaws; if no one responds here, you may want to try filing a bug against the FastLED repo.
by ESP_Sprite
Tue Aug 22, 2017 12:54 am
Forum: ESP32 HDK
Topic: WiFi power spikes
Replies: 4
Views: 89

Re: WiFi power spikes

Yes, this is most likely the WiFi calibration, which is known to generate a spike like that. It's the reason we advise people to use at least a 500mA-capable power supply in the hardware design guidelines.
by ESP_Sprite
Tue Aug 22, 2017 12:52 am
Forum: General Discussion
Topic: Problems using Gpio36 as gpio sensor_vp
Replies: 3
Views: 58

Re: Problems using Gpio36 as gpio sensor_vp

I was mostly idly wondering if the devboard could have capacitors on that pin which can mess up things. Seemingly it does... but I'm not sure if a 270pF capacitor to an unused pin can lead to what you see. Just for my reference: you're trying to use a physical switch here, not the capacitive touch f...

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