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Diffstat (limited to 'ports/esp32/README.md')
| -rw-r--r-- | ports/esp32/README.md | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/ports/esp32/README.md b/ports/esp32/README.md index 85df001e3..0e6531db8 100644 --- a/ports/esp32/README.md +++ b/ports/esp32/README.md @@ -78,7 +78,7 @@ ESPIDF = <path to root of esp-idf repository> #FLASH_MODE = qio #FLASH_SIZE = 4MB #CROSS_COMPILE = xtensa-esp32-elf- -#CONFIG_SPIRAM_SUPPORT = 1 +#SDKCONFIG = boards/sdkconfig.spiram include Makefile ``` @@ -92,6 +92,17 @@ are `PORT` for the serial port of your esp32 module, and `FLASH_MODE` (which may need to be `dio` for some modules) and `FLASH_SIZE`. See the Makefile for further information. +The default ESP IDF configuration settings are provided in the file +`boards/sdkconfig`, and this file is specified in the build by the make +variable `SDKCONFIG`. To use a custom configuration either set `SDKCONFIG` +in your custom `makefile` (or `GNUmakefile`) or set this variable on the +command line: +```bash +$ make SDKCONFIG=sdkconfig.myboard +``` +The file `boards/sdkconfig.spiram` is provided for ESP32 modules that have +external SPIRAM. + Building the firmware --------------------- |