Search found 711 matches

by WiFive
Thu May 25, 2017 11:44 pm
Forum: General Discussion
Topic: Programming Jib for ESP32 WROOM Module
Replies: 2
Views: 27

Re: Programming Jib for ESP32 WROOM Module

Yes there is one on taobao/aliexpress.
by WiFive
Thu May 25, 2017 3:33 am
Forum: ESP32 HDK
Topic: Is the temperature of the esp32 normal?
Replies: 9
Views: 94

Re: Is the temperature of the esp32 normal?

90°C? Sounds high. Are you using wroom32 or other design? Maybe has poor thermal layout.
by WiFive
Thu May 25, 2017 3:30 am
Forum: General Discussion
Topic: D0WD D2WD WROOM-32 WROVER deep sleep SPI Flash pSRAM
Replies: 12
Views: 220

Re: D0WD D2WD WROOM-32 WROVER deep sleep SPI Flash pSRAM

Okay, can i finally give the reason why we don't burn the efuse for 1.8V in D2WD. The reason is, if the VDD_SDIO is configured by efuse, it takes some time for the hardware to read efuse values at startup. If the strapping pin configures VDD_SDIO to be 3.3V, then during this time, VDD_SDIO will be ...
by WiFive
Wed May 24, 2017 10:18 pm
Forum: General Discussion
Topic: OTA and base64 decoding
Replies: 2
Views: 32

Re: OTA and base64 decoding

I think there are also base64 functions in mbedtls, wpa_supplicant, and ROM.
by WiFive
Wed May 24, 2017 4:09 am
Forum: General Discussion
Topic: HSPI and VSPI, meaning thereof?
Replies: 6
Views: 100

Re: HSPI and VSPI, meaning thereof?

Nah, I don't believe it. There's probably some chip designers named harry and victor. :P
by WiFive
Tue May 23, 2017 6:40 pm
Forum: General Discussion
Topic: Clarification re. GPIO matrix and IO Mux
Replies: 5
Views: 82

Re: Clarification re. GPIO matrix and IO Mux

It depends on what you are using the pin for. Some case a pulldown resistor is fine, other case may need a switch.
by WiFive
Tue May 23, 2017 12:44 am
Forum: General Discussion
Topic: D0WD D2WD WROOM-32 WROVER deep sleep SPI Flash pSRAM
Replies: 12
Views: 220

Re: D0WD D2WD WROOM-32 WROVER deep sleep SPI Flash pSRAM

IMO the reason d2wd uses 16&17 for flash is because it was easier to wire bond between the two dies. So should be able to use 9&10 for psram with d2wd. But could be wrong.
by WiFive
Tue May 23, 2017 12:26 am
Forum: General Discussion
Topic: D0WD D2WD WROOM-32 WROVER deep sleep SPI Flash pSRAM
Replies: 12
Views: 220

Re: D0WD D2WD WROOM-32 WROVER deep sleep SPI Flash pSRAM

No, gpio 16&17 are in vdd_sdio domain that is why they were chosen for psram.

But yes it seems important to know about bootstrap requirements for wrover and d2wd.
by WiFive
Mon May 22, 2017 8:05 pm
Forum: General Discussion
Topic: Clarification re. GPIO matrix and IO Mux
Replies: 5
Views: 82

Re: Clarification re. GPIO matrix and IO Mux

Yes. Any function listed in gpio matrix signals list. Some signals only listed in MUX list restricted to those pins.
by WiFive
Mon May 22, 2017 7:25 pm
Forum: General Discussion
Topic: question about the oscillators
Replies: 5
Views: 81

Re: question about the oscillators

I'm not sure how you would remove an internal oscillator ;)

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