Hi,
I'm using an ESP32-WROVER-E which has 4MB Flash and 8MB PSRAM.
Since GENERIC_PSRAM only utilizes 4MB of RAM i wonder what to put in my mpconfigboard.h to enhance this.
Is there anyone who can tell?
Edit: Just seen that I was in the wrong tab. The post may be right here but I feel like it should have been in Development section? If so, sorry for that!
compiling for 8MB PSRAM
Re: compiling for 8MB PSRAM
Check if I am referring to the correct device, mine is a VIE SPIRAM variant.
I copied this off a previous post, maybe search for <ESP32_SPIRAM 4MB to 8MB>
I copied this off a previous post, maybe search for <ESP32_SPIRAM 4MB to 8MB>
I have two of these devices but haven't had the need to reclaim all the memory.a) create a partition table for that 8 MB flash and place it in the esp32 directory. The name is arbitrary. I named it partitions_8mb.csv. My copy:
b) create a board definition subdirectory for that board. That could be a copy of the most similar board. I called it GENERIC_SPIRAM_8MB. But you can give it any suitable name. That name is used in the make command and in the changed mpconfigboard.cmake (see below).Code: Select all
# Name, Type, SubType, Offset, Size, Flags # Note: if you change the phy_init or app partition offset, make sure to change the offset in Kconfig.projbuild nvs, data, nvs, 0x9000, 0x6000, phy_init, data, phy, 0xf000, 0x1000, factory, app, factory, 0x10000, 0x1F0000, vfs, data, fat, 0x200000, 0x600000,
c) create a file sdkconfig.board in the board directory which sets the flash size and partition table name. My version:
c) change the mpconfigboard.cmake file in adding the name of the sdkconfig.board file. Mine looks as follows after the change:Code: Select all
CONFIG_ESPTOOLPY_FLASHSIZE_8MB=y CONFIG_PARTITION_TABLE_CUSTOM=y CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions_8mb.csv"
Code: Select all
set(SDKCONFIG_DEFAULTS boards/sdkconfig.base boards/sdkconfig.ble boards/sdkconfig.spiram boards/GENERIC_SPIRAM_8MB/sdkconfig.board )
Then you can build & flash the image withCode: Select all
set(MICROPY_FROZEN_MANIFEST ${MICROPY_BOARD_DIR}/manifest.py)
Code: Select all
make BOARD=<new_board_name> deploy
Re: compiling for 8MB PSRAM
Hi,
thank you but doesn't this just set flash to 8M?
What I need is 4MB flash and 8MB RAM
edit: just found out that ESP32 only can allocate 4M of RAM directly. The rest is available via another kind of memory allocation or via bank switching (as far as I understand) so either, bank switching can be enabled or some himem library must be developed
.. if I only had this much time.
thank you but doesn't this just set flash to 8M?
What I need is 4MB flash and 8MB RAM
edit: just found out that ESP32 only can allocate 4M of RAM directly. The rest is available via another kind of memory allocation or via bank switching (as far as I understand) so either, bank switching can be enabled or some himem library must be developed
.. if I only had this much time.