Search found 724 matches

by WiFive
Mon May 29, 2017 6:49 pm
Forum: ESP32 SDK
Topic: Interface SD Card via Arduino Ethernet Shield SD card Slot
Replies: 4
Views: 47

Re: Interface SD Card via Arduino Ethernet Shield SD card Slot

Yes it has the voltage dividers. Internal pullup are not very strong and especially in the presence of the voltage divider. Suggest to get another SD breakout for 3.3v with pullups.
by WiFive
Mon May 29, 2017 5:02 am
Forum: ESP32 SDK
Topic: settings into menuconfig for unit-test-app
Replies: 4
Views: 47

Re: settings into menuconfig for unit-test-app

I think there are no kconfig options specific to unit-test-app only. So don't look for a separate menu for that.
by WiFive
Mon May 29, 2017 4:28 am
Forum: ESP32 SDK
Topic: Interface SD Card via Arduino Ethernet Shield SD card Slot
Replies: 4
Views: 47

Re: Interface SD Card via Arduino Ethernet Shield SD card Slot

I don't know which Ethernet shield you have but it may have voltage dividers and no pullup resistors so may not work.
by WiFive
Sun May 28, 2017 8:44 pm
Forum: ESP32 HDK
Topic: Purpose of GPIO_OUT_W1TS_REG
Replies: 2
Views: 94

Re: Purpose of GPIO_OUT_W1TS_REG

Yes but why would you want to do that when you can do it in one operation? It's a convenience function.
by WiFive
Sun May 28, 2017 4:31 pm
Forum: ESP32 SDK
Topic: What is the time to wakeup SoC from hibernation?
Replies: 2
Views: 36

Re: What is the time to wakeup SoC from hibernation?

Probably loading and verifying flash. Try with wake stub and see what the difference is.
by WiFive
Sun May 28, 2017 3:38 pm
Forum: ESP32 HDK
Topic: ESP-WROOM-32 Flash Size
Replies: 12
Views: 849

Re: ESP-WROOM-32 Flash Size

https://github.com/espressif/esp-idf/bl ... ode.c#L165

You can patch around this if you want.
by WiFive
Sat May 27, 2017 7:10 pm
Forum: ESP32 HDK
Topic: Need information regarding ESP-WROVER Module
Replies: 2
Views: 51

Re: Need information regarding ESP-WROVER Module

Should be available with datasheet and esp-idf support within 1 month. Check back later.
by WiFive
Sat May 27, 2017 6:45 pm
Forum: ESP32 SDK
Topic: [Solved] Overflow region dram0_0_seg for big project ...
Replies: 12
Views: 572

Re: [Solved] Overflow region dram0_0_seg for big project ...

If a certain memory structure is only addressed in 32-bit units, for example an array of ints or pointers, it can be useful to allocate it with the MALLOC_CAP_32BIT flag. This also allows the allocator to give out IRAM memory; something which it can’t do for a normal malloc() call. This can help to...
by WiFive
Sat May 27, 2017 5:38 pm
Forum: ESP32 HDK
Topic: VDD_SDIO for ESP32 D2WD
Replies: 14
Views: 547

Re: VDD_SDIO for ESP32 D2WD

ESP_igrr wrote:For D2WD, power all rails except VDD_SDIO at 3.3V. For VDD_SDIO, select 1.8V voltage of the internal regulator by strapping GPIO12. Since VDD_SDIO will be at 1.8V, it must not be connected to the external 3.3V supply.


Is vdd_sdio ever connected to external supply? Isn't it voltage output?
by WiFive
Sat May 27, 2017 4:36 pm
Forum: General Discussion
Topic: Core dump
Replies: 3
Views: 73

Re: Core dump

Those functions are in libnet80211 and we don't have the source code for that.

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