From c9f364de7620bb8751907dbcc4e8341fd3b15ef0 Mon Sep 17 00:00:00 2001
From: Frank <91616163+softhack007@users.noreply.github.com>
Date: Sat, 11 Mar 2023 20:40:12 +0100
Subject: [PATCH] optional 4MB partition file with almost 2MB program space

optional 4MB partition layout: 1.8MB firmware (+400KB), 256KB LittleFS (-800KB); based on  "min_spiffs.csv" from arduino-esp32, but increased filesystem partition from 128KB to 256KB.
---
 platformio.ini                    | 3 ++-
 tools/WLED_ESP32_4MB_256KB_FS.csv | 7 +++++++
 2 files changed, 9 insertions(+), 1 deletion(-)
 create mode 100644 tools/WLED_ESP32_4MB_256KB_FS.csv

diff --git a/platformio.ini b/platformio.ini
index 46fe5dfb..9e1e7055 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -258,7 +258,8 @@ build_flags = -g
   -D LOROL_LITTLEFS
   ; -DARDUINO_USB_CDC_ON_BOOT=0 ;; this flag is mandatory for "classic ESP32" when builing with arduino-esp32 >=2.0.3
 
-default_partitions = tools/WLED_ESP32_4MB_1MB_FS.csv
+default_partitions = tools/WLED_ESP32_4MB_1MB_FS.csv      ;; WLED standard for 4MB flash: 1.4MB firmware, 1MB filesystem
+;default_partitions = tools/WLED_ESP32_4MB_256KB_FS.csv   ;; Alternative for 4MB flash:   1.8MB firmware, 256KB filesystem (esptool erase_flash needed before changing)
 
 lib_deps =
   ${env.lib_deps}
diff --git a/tools/WLED_ESP32_4MB_256KB_FS.csv b/tools/WLED_ESP32_4MB_256KB_FS.csv
new file mode 100644
index 00000000..f9e1be26
--- /dev/null
+++ b/tools/WLED_ESP32_4MB_256KB_FS.csv
@@ -0,0 +1,7 @@
+# Name,   Type, SubType, Offset,  Size, Flags
+nvs,      data, nvs,     0x9000,  0x5000,
+otadata,  data, ota,     0xe000,  0x2000,
+app0,     app,  ota_0,   0x10000, 0x1D0000,
+app1,     app,  ota_1,   0x1E0000,0x1D0000,
+spiffs,   data, spiffs,  0x3B0000,0x40000,
+coredump, data, coredump,0x3F0000,0x10000,
\ No newline at end of file