btw "some secret magic"
yes this are given in this "psram" theme in many ways
you have only to find it out and believe in your own thinking and own making.
best wishes
rudi

last btw:
one magic is in SD Card + PSRAM on a PICO-D4
but this is an other theme

yes - only cs is pulled up with 10k. clk is like it is. btw caused clk need separate pin Sharing CLK may not work b/c CLK to PSRAM is routed through GPIO matrix. Need to clock in one or two extra cycles, depending on the freq. the psram theme is a long theme :) keep us updated to your tiny tiny pico...

Hey rudi... the CLK and DATA pin can share an IO (GPIO10) ? How is that possible? Cheers, Seon unexpectedmaker.com damn... now the confuse begins from start again :) want edit it but to late - you read my last (deleted) post :) you can share only the data pins between psram and flash. for flash you...

You have to modify the esp-idf/components/esp32/spiram_psram.c , (I'll do it in the next MicroPython repository update), to enable psRAM initialization for ESP32-PICO-D4 and rebuild the firmware. See this for instructions. The correct pin mapping should be like this (latest response from esp-idf te...

@loboris psram.c #define PICO 1 #ifdef PICO #define PSRAM_CS_IO 9 #define PSRAM_CLK_IO 10 #else #define PSRAM_CS_IO 16 #define PSRAM_CLK_IO 17 #endif psram.c "psram_gpio_config" #ifdef PICO /* TEST Config for the PICO-D4 * - ESP32_PICO_Core_Board_V2 * - ESP32_PICO_Core_Board_V3 * Note: V2 & V3 Board...

@seonroz https://esp32.com/viewtopic.php?f=2&t=2713&p=13463#p13380 https://esp32.com/viewtopic.php?f=2&t=2713&p=13463#p13463 how you connect PSRAM ( 3.3V ) to the PINHEADER of Pico-D4 ? ( FSD0, FSD1, FSD2, FSD3 ) which pins you use for PSRAM CS# and CLK ? don't use FCLK ( flash clock ) for psram CLK...

Hey Rudi.. I'd like to revive this thread! Firstly, thanks for all of your work on getting PSRAM working on the PICO-D4! What are the final pin mappings you used for rev1 silicon? Hi https://esp32.com/viewtopic.php?f=2&p=18439#p17627 https://esp32.com/viewtopic.php?f=2&p=18439#p18431 I have a board...

Hey Rudi.. I'd like to revive this thread! Firstly, thanks for all of your work on getting PSRAM working on the PICO-D4! What are the final pin mappings you used for rev1 silicon? Hi https://esp32.com/viewtopic.php?f=2&p=18439#p17627 https://esp32.com/viewtopic.php?f=2&p=18439#p18431 I have a board...

@ tomikpik
I dig up the cellar.
after few time and try#s, there comes perhabs a custom proof of concept with ETH and Wifi after the summer vacation.
still in tests and I am satisfied so far. I use it for a LAN to WIFI bridge.
best wishes
rudi

btw:
have a note about MP WROVER and update
ESP32-WROVER 64-Mbit PSRAM*
ESP32-WROVER-I 64-Mbit PSRAM*

best wishes
rudi