Search found 814 matches

by rudi ;-)
Wed May 24, 2017 12:44 am
Forum: General Discussion
Topic: D0WD D2WD WROOM-32 WROVER deep sleep SPI Flash pSRAM
Replies: 8
Views: 135

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

ok - after some "cooked**" pSRAM and D2WD's i think i figured it out now - now is clear for see where the way must look for pSRAM and D2WD.

best wishes
rudi ;-)


**) i don't think they are damaged - but i would never take they again for testings.
by rudi ;-)
Tue May 23, 2017 12:32 am
Forum: General Discussion
Topic: D0WD D2WD WROOM-32 WROVER deep sleep SPI Flash pSRAM
Replies: 8
Views: 135

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. txs - so it can be, that 16, 17 is taken for CLK(1.8) and CS(1.8) in wrover example for pSRAM yes - i see this too to know about boo...
by rudi ;-)
Mon May 22, 2017 11:25 pm
Forum: General Discussion
Topic: D0WD D2WD WROOM-32 WROVER deep sleep SPI Flash pSRAM
Replies: 8
Views: 135

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

f) ESP-pSRAM32 can be driven from 1.8V do 3.3V and need not to drive 1.8V and can be driven with 3.3V right? will check this on Monday... ivan VDD is 1.8V h) if we combine ESP32-D2WD with ESP-pSRAM32 we must use 1.8V cause intern Flash and ESP-pSRAM32 share Dataline PINS I'm not sure whether this i...
by rudi ;-)
Mon May 22, 2017 11:16 pm
Forum: General Discussion
Topic: which new "esp" 8 pin ic is this on the new esp32 modul? ;-)
Replies: 63
Views: 3159

Re: which new "esp" 8 pin ic is this on the new esp32 modul? ;-)

From a mix of posted infos here Identified contradictions (1KB page mode / 32B) VDD 1.8 must Datalines 1.8 must Power-up initialization CLK pull down CS pull high SI / SO/SIO 3: 0 pull down Test module: WROOM32 with 3.3 SPI Flash Power Supply Convertion 3.3 -> 1.8 with voltage divider Level Converti...
by rudi ;-)
Mon May 22, 2017 8:15 am
Forum: General Discussion
Topic: Clarification on SD_CARD Pins
Replies: 3
Views: 165

Re: Clarification on SD_CARD Pins

do you plan SD CARD SPI Version ? Yes, the SD SPI driver is almost ready! Hope to release it soon. txs. for completion now: SD Mode like the Demo in ESP-IDF you can use 4Bit Mode (Dat0, Dat1, Dat2, Dat3) or 1Bit Mode (Dat0 ) 01_SD_SPI_SDIO-MMC.png SPI Mode ( driver comes like Ivan sayed ) you can d...
by rudi ;-)
Mon May 22, 2017 7:02 am
Forum: General Discussion
Topic: SDIO Interface
Replies: 25
Views: 2001

Re: SDIO Interface

I just tried SDIO example (https://github.com/espressif/esp-idf/tree/master/examples/storage/sd_card). 1bit mode works, but 4bit mode does not work. only for clarification: does the 1bit mode that works - look like this ? do you have Pullups in Hardware in the line? SD_1-BIT.png so you must do the ...
by rudi ;-)
Mon May 22, 2017 6:59 am
Forum: General Discussion
Topic: Clarification on SD_CARD Pins
Replies: 3
Views: 165

Re: Clarification on SD_CARD Pins

Wire and Connection: 1-Bit Mode
You need Hardware Pullups!
Software Pullups does not work!

SD_1-BIT.png
SD_1-BIT.png (17.15 KiB) Viewed 53 times
by rudi ;-)
Mon May 22, 2017 6:12 am
Forum: General Discussion
Topic: SDIO Interface
Replies: 25
Views: 2001

Re: SDIO Interface

I just tried SDIO example (https://github.com/espressif/esp-idf/tree/master/examples/storage/sd_card). 1bit mode works, but 4bit mode does not work. Connections are ok (correctly as https://github.com/espressif/esp-idf/tree/master/examples/storage/sd_card#hardware). My SD card board has no internal...
by rudi ;-)
Sun May 21, 2017 1:39 pm
Forum: General Discussion
Topic: D0WD D2WD WROOM-32 WROVER deep sleep SPI Flash pSRAM
Replies: 8
Views: 135

D0WD D2WD WROOM-32 WROVER deep sleep SPI Flash pSRAM

hi ESP_ *+ guys after several studdy now we have this fixed question: a) deep sleep with 5µA is possible if we set VDD_SDIO to 1.8V right? b) ESP32-D0WD is driven by 3.3V and can setup VDD_SDIO to 1.8V and 3.3V right? c) ESP32-D2WD is driven by 3.3V and intern Flash is driven by 1.8V right? d) ESP32...
by rudi ;-)
Sun May 21, 2017 1:14 pm
Forum: ESP32 HDK
Topic: About the CAN controller.
Replies: 93
Views: 9675

Re: About the CAN controller.

Hi Rudi and Thomas, Error report: 'CLEAR_PERI_REG_MASK' and 'SET_PERI_REG_MASK' error hi you can try to use this branch in the meantime i think thomas is update very soon the repo too. it was a change ( named changed ) on espressif ESP-IDF. btw, thomas add support for extended frames and other thin...

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