Search found 825 matches

by rudi ;-)
Thu May 25, 2017 8:57 pm
Forum: ESP32 HDK
Topic: Needed additional pins for PSRAM
Replies: 17
Views: 1112

Re: Needed additional pins for PSRAM

No, sorry. The flash and psram have slightly different timing requirements, and the intrinsics of the cache mechanism makes it impossible to cater to both using one clock line. I was surprised by that myself as well and suggested a few workarounds to the digital team, but seems they already thought...
by rudi ;-)
Thu May 25, 2017 6:59 pm
Forum: ESP32 SDK
Topic: I2S microphone (RX)
Replies: 23
Views: 868

Re: I2S microphone (RX)

BuddyCasino wrote:
hope for the digi tiny ICS boards asap

Already packaged, will send them out tomorrow!

:D
by rudi ;-)
Thu May 25, 2017 5:53 pm
Forum: ESP32 SDK
Topic: I2S microphone (RX)
Replies: 23
Views: 868

Re: I2S microphone (RX)

BuddyCasino wrote:I like things small and digital, so its not for me. I can see the appeal though - good luck!

you are right - perhabs i will try - - hope for the digi tiny ICS boards asap :)))
best wishes
rudi ;-)
by rudi ;-)
Thu May 25, 2017 3:21 pm
Forum: ESP32 SDK
Topic: I2S microphone (RX)
Replies: 23
Views: 868

Re: I2S microphone (RX)

@buddy
what you think
can we take for a short test UDA1380 too ?
it has Tx and Rx and I²C for Vol and others.

Sheet SRC

pinHeader.png
pinHeader.png (262.92 KiB) Viewed 41 times


best wishes
rudi ;-)
by rudi ;-)
Thu May 25, 2017 1:51 pm
Forum: ESP32 SDK
Topic: I2S microphone (RX)
Replies: 23
Views: 868

Re: I2S microphone (RX)

:)
by rudi ;-)
Thu May 25, 2017 1:18 pm
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

from the readthedocs the standing theme 1.8V from flash and psram speak detailed 1.8V: _info_electrical_flash+SRAM.jpg alternate: but we can use 3.3 flash and 3.3 pSRAM-32 too right? it is not a must2take 1.8V doing, or? then there is no need to use bootstrap or efuse. does this Interfering ULP or d...
by rudi ;-)
Thu May 25, 2017 11:46 am
Forum: General Discussion
Topic: which new "esp" 8 pin ic is this on the new esp32 modul? ;-)
Replies: 64
Views: 3322

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

file attached
LY68S3200_1.2.pdf
pSRAM Lyontek 32MBit 1.8V
(591.3 KiB) Downloaded 35 times



edit: an important note on sharing CLK.

btw:
LY68L6400_0.3.pdf
pSRAM Lyontek 64MBit 3.3V
(522.6 KiB) Downloaded 22 times


LY68S6400_0.2.pdf
pSRAM Lyontek 64MBit 1.8V
(522.31 KiB) Downloaded 15 times
by rudi ;-)
Thu May 25, 2017 11:44 am
Forum: General Discussion
Topic: which new "esp" 8 pin ic is this on the new esp32 modul? ;-)
Replies: 64
Views: 3322

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

The puzzle becomes more complete CONNECTING Taken from the ESP32 technical reference manual 0_pSRAM-ESP-tech_ref.jpg POWER-UP INITIALIZATION Taken from the Lyontek Datasheet: LY68S3200SL and is of the same kind in Initial to ESP-pSRAM32 (2017.01 V1.0 Initial release) 1_pSRAM-Ly-powerup.jpg SPI READ...
by rudi ;-)
Thu May 25, 2017 3:54 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

[ Ah that is interesting. So vdd_sdio is powered on before efuse is read. I guess if it wasn't then it would impact flash startup time. So this applies to WROVER as well? @ivan thank you for the clarification - this is a "must2know" detail. @WiFive the procedure to start and read efuses /...
by rudi ;-)
Wed May 24, 2017 8:33 pm
Forum: ESP32 HDK
Topic: About the CAN controller.
Replies: 94
Views: 9911

Re: About the CAN controller.

@beck

could you manage and have you find the mistake in the code line 75 in the file "main_rubi.c"

Code: Select all

/Users/Beck/Developer/esp/can_bus_components/main/./main_rubi.c:75


best wishes
rudi ;-)

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