Search found 20 matches

by q2222ch
Sun May 13, 2018 1:14 pm
Forum: General Discussion
Topic: Can't find esp32 under /dev/
Replies: 4
Views: 12594

Re: Can't find esp32 under /dev/

...are you using macOS High Sierra?- If yes: Have you looked in the "System Preferences" -> "Security & Privacy" settings under the "General" tab if the system has prevented the driver from loading?- If yes: You should find an "Allow" button there that you can use to allow the loading if you want (y...
by q2222ch
Mon Jul 17, 2017 7:38 pm
Forum: ESP-IDF
Topic: ESP32 PSRAM support
Replies: 112
Views: 193521

Re: ESP32 PSRAM support

@rudi;-)
;)
by q2222ch
Sat Jun 10, 2017 12:42 pm
Forum: Hardware
Topic: RTC I2C Controller Pins
Replies: 1
Views: 5032

RTC I2C Controller Pins

Is my assumption correct that the written down pinout of the RTC I2C Controller pins is correct in the datasheet V1.5 and that it is a copy and past error in the register description in the Technical References Manual V1.8 only?

RTC_I2C.png
RTC_I2C.png (162.5 KiB) Viewed 5032 times
ESP32_TRM_V1_8.png
ESP32_TRM_V1_8.png (129.72 KiB) Viewed 5032 times
by q2222ch
Thu Jun 08, 2017 11:10 am
Forum: General Discussion
Topic: What about support for Apple Homekit / Google Weave (Brillo)
Replies: 16
Views: 30606

Re: What about support for Apple Homekit / Google Weave (Brillo)

I think HomeKit has been opened at least a bit recently for non commercial use...
https://www.macobserver.com/news/apple- ... g-homekit/
by q2222ch
Sat Jun 03, 2017 11:04 pm
Forum: Hardware
Topic: Needed additional pins for PSRAM
Replies: 22
Views: 34149

Re: Needed additional pins for PSRAM

I tried to create a little overview how to connect the external pSRAM to the ESP32-D0WD and ESP32-D2WD chips based on the information in the forum and the different documents. Based on the information that I could find there are still "two pins" missing (in the case of the ESP32-D2WD). Could somebod...
by q2222ch
Fri Jun 02, 2017 12:26 pm
Forum: Hardware
Topic: Needed additional pins for PSRAM
Replies: 22
Views: 34149

Re: Needed additional pins for PSRAM

@ESP_igrr: With the two mentioned points (pin strapping/ eFuse Deep-Sleep problems) I mean based on the information in the Espressif documentation and the posts in the forum: a.) Pin strapping: That the LDO of the ESP is configured with a VDD_SDIO = 3.3V till the eFuses are read (even if they are co...
by q2222ch
Fri Jun 02, 2017 9:08 am
Forum: Hardware
Topic: Needed additional pins for PSRAM
Replies: 22
Views: 34149

Re: Needed additional pins for PSRAM

Hello I would like to ask a hypothetical question: If I make the following assumptions: 1.) I use the ESP32-D0WDQ6 or ESP32-D0WD or the ESP32-S0WD chip 2.) I would have a pSRAM chip with a nominal supply voltage of 3.3V at my disposal... 3.) I connect the external SPI flash and the pSRAM chip to the...
by q2222ch
Fri Apr 21, 2017 5:52 am
Forum: Hardware
Topic: Needed additional pins for PSRAM
Replies: 22
Views: 34149

Re: Needed additional pins for PSRAM

Hello alangman, we have decided to use the ESP32-D0WD instead of the ESP32-D2WD in our project with the PSRAM because we can not make sure that the capacity of the internal SPI flash of the ESP32-D2WD will fulfil all the requirements during the product life cycle. We reduced the needed space for thi...
by q2222ch
Sun Apr 16, 2017 8:57 am
Forum: Hardware
Topic: Needed additional pins for PSRAM
Replies: 22
Views: 34149

Re: Needed additional pins for PSRAM

Thank you ESP_igrr for the confirmation. We are waiting for feedback concerning the QFN48 5x5 devices from sales, too. :(
by q2222ch
Sat Apr 15, 2017 5:17 pm
Forum: Hardware
Topic: Needed additional pins for PSRAM
Replies: 22
Views: 34149

Re: Needed additional pins for PSRAM

OK, thank you very much for your answer. If I understand it correctly based on the documentation this means (as a consequence) that the internal flash in the device ESP32-D2WD is connected via GPIO Matrix not directly through the IO_MUX. Is my interpretation of the documentation right?