Search found 1226 matches

by ESP_Sprite
Thu Dec 14, 2017 11:12 am
Forum: ESP32 SDK
Topic: Crash when configure GPIO9
Replies: 5
Views: 743

Re: Crash when configure GPIO9

Yes, that slot is incompatible with the ESP32 being used with SPI flash on these GPIOs.
by ESP_Sprite
Thu Dec 14, 2017 11:11 am
Forum: General Discussion
Topic: how can disable watchdog
Replies: 5
Views: 50

Re: how can disable watchdog

I wouldn't say 'better'. I would say that is likely the only way to get your program to work.
by ESP_Sprite
Thu Dec 14, 2017 9:14 am
Forum: ESP32 SDK
Topic: ADC1 can not sampling in I2S scanning mode when enable WiFi.
Replies: 1
Views: 14

Re: ADC1 can not sampling in I2S scanning mode when enable WiFi.

Thanks for your bug report! We're aware of the fact that the sample is broken; we have a fix in the pipeline. I don't know if we know about the WiFi thing yet. Could you please make a Github issue about this ( https://github.com/espressif/esp-idf/issues/new ) so we can track this issue better?
by ESP_Sprite
Thu Dec 14, 2017 9:04 am
Forum: ESP32 SDK
Topic: SPI slave mode (example)
Replies: 15
Views: 749

Re: SPI slave mode (example)

Any chance you can connect an oscilloscope to your signal lines? I'm thinking that stray capacitance or something may mess up your clock signal.
by ESP_Sprite
Thu Dec 14, 2017 9:00 am
Forum: General Discussion
Topic: Espressif, Who you are?
Replies: 1
Views: 76

Re: Espressif, Who you are?

Well, it's not that secret, to be honest. We're indeed headquartered in Shanghai, but we also have offices in other places in China (from memory Wuxi, Hefei, Shenzen), and also in India and the Czech republic. At the moment, I think I have around 200 colleagues, but that number is still rising as we...
by ESP_Sprite
Thu Dec 14, 2017 8:50 am
Forum: General Discussion
Topic: ESP32 roam behaviour
Replies: 2
Views: 44

Re: ESP32 roam behaviour

Fyi, the forums here are best-effort; if someone passes along who knows the answer, you may get a quick response; if the devs are all busy and no one else knows the answer, it may take longer or sometimes will be missed. If you're planning on making a product in any significant numbers, I suggest yo...
by ESP_Sprite
Thu Dec 14, 2017 8:47 am
Forum: General Discussion
Topic: Flash encryption effect on ESP32 speed
Replies: 3
Views: 54

Re: Flash encryption effect on ESP32 speed

Flash encryption should not affect the SPI PSRAM in a major way (maybe a read/write will happen a clock cycle or two later because it'll need for a slightly delayed flash write cycle). Be aware, however, that unlike the flash, SPI PSRAM does not have hardware encryption in the ESP32.
by ESP_Sprite
Thu Dec 14, 2017 8:44 am
Forum: General Discussion
Topic: Amazon FreeRTOS
Replies: 3
Views: 177

Re: Amazon FreeRTOS

Anything specific you'd like to see pop up in esp-idf?
by ESP_Sprite
Thu Dec 14, 2017 8:43 am
Forum: General Discussion
Topic: how can disable watchdog
Replies: 5
Views: 50

Re: how can disable watchdog

Arrow keys move around, space selects/deselects.

I suggest, however, that you find out what causes the watchdog to trigger: chances are that with the watchdog disables, you end up with an unresponsive ESP32 instead of a rebooting ESP32.
by ESP_Sprite
Tue Dec 12, 2017 12:31 am
Forum: Sample Code
Topic: SPI slave communication with another microcontroller
Replies: 9
Views: 1146

Re: SPI slave communication with another microcontroller

Effectively, you don't. That call will not return until a transmission is done by the master. (Other tasks will run while the SPI interface is doing this.)

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