reserve 1MB of PSRAM for camera framebuffer on esp32s3-eye

jepler · jepler · commit 8d673bdbf5e5 · 2022-08-04T15:11:51.000-05:00
.. this setting can be overridden with a bigger or smaller value in
CIRCUITPY/.env but 1/8 of PSRAM seems like a good initial value. It's
enough to store a single 800x600 or 640x480 RGB565 frame, or multiple
smaller frames such as 320x240.
diff --git a/ports/espressif/boards/espressif_esp32s3_eye/mpconfigboard.h b/ports/espressif/boards/espressif_esp32s3_eye/mpconfigboard.h
@@ -37,3 +37,5 @@
 #define DEFAULT_SPI_BUS_SCK         (&pin_GPIO39)
 #define DEFAULT_SPI_BUS_MISO        (&pin_GPIO40)
 #define DEFAULT_SPI_BUS_MOSI        (&pin_GPIO38)
+
+#define DEFAULT_RESERVED_PSRAM      (1048576)
