WiFive wrote:ESP_Sprite wrote: but I can post the schematic.
This pic doesn't show gpio12 pullup resistor
i think this is not so important as long as it illustrate, and answered the question
AnalogLamb wrote:... how to connect PSRAM and Flash.
i wounder, is this now the shematic for wrover or realy only a illustrate ( i am going saver steps now since clk sharing )
and cause i think over for what we need a wire bridge provide for
SCK/CLK to GPIO17,
i see the Resistor R11 is NC but for what we need this smd pad provide?
it is clear now [**1] [**2] , that we do not can share the flash CLK with the SRAM CLK.
btw the illustrate for GPIO12 is as an optional -
but i think, like WiFive, too, - we need this official in the shematic
and as a very important point in the initial use in the Wrover Getting Start Guide
it is official that wrover use 1.8V Flash and pSRAM - so we need the point to the customer who do this not know.
it is a very important first step point to WROVER / WROVER Kit
note to green mark: read the datasheet, cause flash and pSRAM is 1.8 V in Wrover - it need bootstrap pin pulled up (R custom) or eFuse for VDD_SDIO i.8V
It is recommended to use the bootstrap, See note in the datasheet(coming soon) or reference in the link
[**1] note1 to CLK Sharing Flash/pSRAM
[**2] note2 to CLK Sharing Flash/pSRAM