ESP32-WROOM-32E-N8R2 with 2 MB SPI RAM and esp32spiram-20220618-v1.19.1.bin not working

[sseuf]

Hi,

I have flashed a ESP32-WROOM-32E-N8R2 (ESP32-D0WDR2-V3 with 2 MB of SPI RAM) with the latest esp32/GENERIC_SPIRAM Firmware v1.19.1 (2022-06-18) .bin.

Up on boot I get the following output:

ets Jul 29 2019 12:21:46

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 153911750, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:4540
ho 0 tail 12 room 4
load:0x40078000,len:12788
load:0x40080400,len:4176
entry 0x40080680
E (651) psram: Not a valid or known package id: 7
Re-enable cpu cache.

abort() was called at PC 0x40082e57 on core 0

Backtrace:0x400964a9:0x3ffe3b30 0x40096a99:0x3ffe3b50 0x4009a355:0x3ffe3b70 0x40
082e57:0x3ffe3be0 0x400d3ec5:0x3ffe3c50 0x40081e08:0x3ffe3c70 0x40078f5c:0x3ffe3
c90 |<-CORRUPTED


ELF file SHA256: 46bca36b7d6020a6

Rebooting...

After that, the device restarts endlessly.

I have tracked the error message E (651) psram: Not a valid or known package id: 7 down in the esp-idf in the file esp_psram_impl_quad.c

But the if-statement for the ESP32-D0WDR2-V3 is present in line 873:

} else if (pkg_ver == EFUSE_RD_CHIP_VER_PKG_ESP32D0WDR2V3){

And EFUSE_RD_CHIP_VER_PKG_ESP32D0WDR2V3 is defined as 7 in efuse_reg.h.

So I searched the commit where the if-statement was added and it is ce1ee3d from Nov 12, 2021. The name of the file esp_psram_impl_quad.c was spiram_psram.c at this time. The module esp_psram_impl_quad.o is not found in the map-file esp32spiram-20220618-v1.19.1.map but spiram_psram.o is.

Is the current esp32spiram-20220618-v1.19.1 built with a esp-idf from earlier than Nov 12, 2021 or am I missing something?

I don't know much about building micropython, but I want to use the SPI RAM of the ESP32-WROOM-32E-N8R2. Does someone has a suggestion?

[PBrunot]

Building more recet Micropython image is not that hard. I was able to get it running in 2 hours on Windows + WSL from scratch and little previous experience.

1. Build micropython mpy-cross as per these docs: https://docs.micropython.org/en/latest/develop/gettingstarted.html#compile-and-build-the-code

2. Follow ESP32 specifics instructions from :https://github.com/micropython/micropython/blob/master/ports/esp32/README.md
   I suggest you build against ESP-IDF v4.4 (5.x not supported)

3. To create a specific board image, from ports/esp32 folder

make BOARD=GENERIC_SPIRAM

4. Flash the firmware.bin onto your device (file under ports/esp32/build- folder)