Search found 2887 matches

by WiFive
Tue Mar 10, 2020 2:57 am
Forum: ESP32 IDF
Topic: cant get PSRAM to work
Replies: 7
Views: 1197

Re: cant get PSRAM to work

heap_caps_get_largest_free_block(MALLOC_CAP_SPIRAM)
by WiFive
Sat Mar 07, 2020 11:39 pm
Forum: General Discussion
Topic: Weird problem: Sensor only works on GPIO2 !?
Replies: 3
Views: 1828

Re: Weird problem: Sensor only works on GPIO2 !?

mikemoy wrote:
Sat Mar 07, 2020 7:02 pm
I am more curious why you need GPIO2 to flash your device.
GPIO0 is all that is needed.
https://github.com/espressif/esptool/wi ... tion#gpio2
by WiFive
Sat Mar 07, 2020 4:04 am
Forum: General Discussion
Topic: IO MUX or GPIO matrix with TOUCH pins and ADC pins.
Replies: 1
Views: 1049

Re: IO MUX or GPIO matrix with TOUCH pins and ADC pins.

You can't, analog/touch pins are fixed.
by WiFive
Sat Feb 29, 2020 2:25 am
Forum: General Discussion
Topic: Cant wake up from UART_NUM_1
Replies: 11
Views: 1319

Re: Cant wake up from UART_NUM_1

I think you will always lose the first packet when waking up, even when using gpio3. The uart fifo is not available in sleep to save the bytes.
by WiFive
Wed Feb 26, 2020 3:01 pm
Forum: General Discussion
Topic: How to change default size of UART FIFO?
Replies: 1
Views: 503

Re: How to change default size of UART FIFO?

https://github.com/espressif/esp-idf/bl ... #L315-L316

It's not supported by the driver so you will have to modify it or use your own
by WiFive
Mon Feb 24, 2020 2:43 pm
Forum: General Discussion
Topic: ESP32 secure boot problem
Replies: 4
Views: 707

Re: ESP32 secure boot problem

by WiFive
Sun Feb 23, 2020 5:30 am
Forum: General Discussion
Topic: Unable to receive data through Uart above 120 bytes
Replies: 5
Views: 715

Re: Unable to receive data through Uart above 120 bytes

It is in the datasheet
Note:
* Pins SCK/CLK, SDO/SD0, SDI/SD1, SHD/SD2, SWP/SD3 and SCS/CMD, namely, GPIO6 to GPIO11 are connected
to the integrated SPI flash integrated on ESP-WROOM-32 and are not recommended for other uses

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