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by WiFive
Wed Apr 26, 2017 4:24 am
Forum: ESP32 HDK
Topic: ESP-WROOM-32 Flash Size
Replies: 9
Views: 95

Re: ESP-WROOM-32 Flash Size

ESP_igrr wrote:You are however free to modify bootloader code to support different WP pin in your design.


What about ROM loader considerations?
by WiFive
Wed Apr 26, 2017 12:02 am
Forum: ESP32 HDK
Topic: VDD_SDIO for ESP32 D2WD
Replies: 8
Views: 222

Re: VDD_SDIO for ESP32 D2WD

martinayotte wrote:Are all WROOM32 equipped with 1.8V flash ?

So, the failure I've got could happen to anyone who leave the pin floating, right ?


No I don't think so, this is talking about D2WD. WROOM32 uses D0WD.
by WiFive
Wed Apr 26, 2017 12:00 am
Forum: General Discussion
Topic: Voltage Ranges for Low & High
Replies: 2
Views: 43

Re: Voltage Ranges for Low & High

Data sheet says 30% and 70% of supply voltage
by WiFive
Tue Apr 25, 2017 4:25 pm
Forum: ESP32 HDK
Topic: ESP-WROOM-32 Flash Size
Replies: 9
Views: 95

Re: ESP-WROOM-32 Flash Size

Hopefully espressif will consider making a 128 or 256mbit version a standard offering especially with this new feature https://github.com/espressif/esp-idf/co ... 7468897325

I think many customers would be interested.
by WiFive
Tue Apr 25, 2017 2:38 pm
Forum: General Discussion
Topic: socket api
Replies: 1
Views: 51

Re: socket api

It shouldn't have to be LWIP_SOCK_OPEN status to be allocated, just have no netconn.
by WiFive
Tue Apr 25, 2017 9:12 am
Forum: ESP32 HDK
Topic: ESP-WROOM-32 Flash Size
Replies: 9
Views: 95

Re: ESP-WROOM-32 Flash Size

You can possibly remap flash pins in efuse to boot from another chip. Maybe changing 1-2 pins is enough? Or you could have OTA stored in external flash and custom bootloader, although you said you don't have the pins. I think it is somewhat likely they will start making wroom32 with bigger flash as ...
by WiFive
Sun Apr 23, 2017 2:06 pm
Forum: General Discussion
Topic: crash on rmt_driver_install using non-GPIO pin
Replies: 5
Views: 68

Re: crash on rmt_driver_install using non-GPIO pin

ESP_igrr wrote:GPIO6 is one of the GPIOs which are used to connect the flash chip on most boards. Using it for some other purpose will not work, as it will interfere with communication between the ESP32 and the flash chip.


FAQ needed
by WiFive
Sat Apr 22, 2017 1:53 pm
Forum: ESP32 HDK
Topic: Pin differences for embedded flash
Replies: 3
Views: 117

Re: Documentation error - ESP32 datasheet V1.3

That is because it is referencing the D2WD version of the device which has an internal flash chip connected to those pins. Yes, this is different from the standard pins used with external flash.

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