Search found 1412 matches

by WiFive
Tue Feb 20, 2018 4:32 am
Forum: ESP32 SDK
Topic: DMA example for UART communication for ESP32
Replies: 15
Views: 516

Re: DMA example for UART communication for ESP32

Yes tout interrupt generates UART_DATA event. Other than changing the wait timeouts not really. But you may want to ask do you need to use event queue and double buffered data or can you just do like this https://github.com/espressif/esp-idf/tr ... _rxtxtasks
by WiFive
Tue Feb 20, 2018 3:19 am
Forum: General Discussion
Topic: Bug of deep sleep with GPIO
Replies: 4
Views: 108

Re: Bug of deep sleep with GPIO

After wake up from sleep, IO pad used for wakeup will be configured as RTC IO. Before using this pad as digital GPIO, reconfigure it using rtc_gpio_deinit(gpio_num) function.


https://esp-idf.readthedocs.io/en/lates ... modes.html
by WiFive
Mon Feb 19, 2018 11:57 pm
Forum: News
Topic: Espressif at the 2018 embedded world Exhibition & Conference
Replies: 3
Views: 523

Re: Espressif at the 2018 embedded world Exhibition & Conference

Bring us back information about new chip 8-)
by WiFive
Mon Feb 19, 2018 11:21 pm
Forum: General Discussion
Topic: Bug of deep sleep with GPIO
Replies: 4
Views: 108

Re: Bug of deep sleep with GPIO

After you wake up do you use rtc functions to read gpio or configure it back to normal gpio?
by WiFive
Mon Feb 19, 2018 8:06 pm
Forum: ESP32 SDK
Topic: DMA example for UART communication for ESP32
Replies: 15
Views: 516

Re: DMA example for UART communication for ESP32

If you are using uart_read_bytes with nonzero wait time the task should unblock when tout interrupt pushes bytes to ringbuffer
by WiFive
Sun Feb 18, 2018 12:05 am
Forum: ESP32 SDK
Topic: I2C crash with release/v3.0 - what's an effective way to debug this?
Replies: 22
Views: 919

Re: I2C crash with release/v3.0 - what's an effective way to debug this?

I don't see why it would be a problem. You may want to look at the comments and code here https://github.com/espressif/arduino-esp32/issues/1093
by WiFive
Sat Feb 17, 2018 6:36 pm
Forum: ESP32 SDK
Topic: DMA example for UART communication for ESP32
Replies: 15
Views: 516

Re: DMA example for UART communication for ESP32

If the baud is 115200 then the tout interrupt will come approx 90us after end of frame.
by WiFive
Sat Feb 17, 2018 6:31 pm
Forum: General Discussion
Topic: Random String generation
Replies: 3
Views: 195

Re: Random String generation

Base64 encode?

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