Hi, I just read SPI api-reference and looking for an example snippet of reading SPI data in DMA mode. There is spi_master but it doesnt use DMA (doesnt it?) and just send, do not read any data. Things that are important for me: - declaring memory for buffers (how, should I declare new buffer for eac...

What value are R149, R150 and R151 resistors used on WROVERKIT (these are resistors in series with rgb led)?
There are some enormous values showed on a schematic

Hi. I would use SD Card in 4-line mode, connecting it to: GPIO14 (MTMS), GPIO15 (MTDO), GPIO2, GPIO4, GPIO12 (MTDI), GPIO13 (MTCK). Am I able to split GPIO14 (CLK), GPIO15 (MOSI) and GPIO2 (MISO) with another SPI device (flash memory)? Current version of sd_card drive allow for it in terms of time g...

Where MTDI pin (that selects voltage for VDD_SDIO) should be connected for modern WROOM32 module?
What flash chip is now used?

I see that for WROVER module, there is used another CLK pin for SRAM. Why?

Am I able to use pins SD_CLK, SD_DATA_0, SD_DATA_1 of WROOM module, where flash memory is connected, for additional external memory eg. fram? How to control SD_CMD, that is used as chip select pin? What voltages are on these pins: normal, as any other pin, or 1.7V? Is it a good practice to connect m...

Simple diode is okey solution keeping in mind its price.
Ldo is better because it do stabilization but caps are needed, more pins for soldering, current mustn't be too low and price is bigger

On ESP-WROVER-KIT_SCH, JTAG section, TDI pin is doubled: one connected to MTDI (IO12/SD_DATA2), one by transistor Q3 made to heel down on a start off. Is it designed to work like that? What if I wont apply Q3 transistor and TDI will be just connected to IO12. As far I understand, JTAG conflicts with...

I'm looking for WROVER KIT's PCB documentation - gerber, pdf of traces

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Exactly. Dynamic replugging is not a point, but any EM deviation on a line mustn't cause a core panic