Closed
Description
I found that sketches over 500KB wont OTA Update on the 3MB SPIFFS version as there is not enough space before the SPIFFS memory allocation.
1MB SPIFFS seems like a waste, so we need a 2MB SPIFFS option that has 1MB BEFORE the SPIFFS flash allocations to allow > 500KB OTA updates
Bellow is how I achieve this on my NodeMCU (actually a custom board but I still use nodeMCU board def.)
Add this to AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\board.txt file
Scroll down to NodeMCU 1.0v and add it there.
nodemcuv2.menu.FlashSize.4M2M=4M (2M SPIFFS)
nodemcuv2.menu.FlashSize.4M2M.build.flash_size=4M
nodemcuv2.menu.FlashSize.4M2M.build.flash_ld=eagle.flash.4m2m.ld
nodemcuv2.menu.FlashSize.4M2M.build.spiffs_start=0x200000
nodemcuv2.menu.FlashSize.4M2M.build.spiffs_end=0x3FB000
nodemcuv2.menu.FlashSize.4M2M.build.spiffs_blocksize=8192
nodemcuv2.menu.FlashSize.4M2M.build.spiffs_pagesize=256
nodemcuv2.menu.FlashSize.4M2M.upload.maximum_size=1044464
Add a LD file to AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\tools\sdk\ld called eagle.flash.4m2m and insert the bellow contents. Hint. Just make a .txt file and add .ld file extension to the end
/* Flash Split for 4M chips */
/* sketch 1019KB */
/* empty 1024KB */
/* spiffs 2028KB */
/* eeprom 20KB */
MEMORY
{
dport0_0_seg : org = 0x3FF00000, len = 0x10
dram0_0_seg : org = 0x3FFE8000, len = 0x14000
iram1_0_seg : org = 0x40100000, len = 0x8000
irom0_0_seg : org = 0x40201010, len = 0xfeff0
}
PROVIDE ( _SPIFFS_start = 0x40400000 );
PROVIDE ( _SPIFFS_end = 0x405FB000 );
PROVIDE ( _SPIFFS_page = 0x100 );
PROVIDE ( _SPIFFS_block = 0x2000 );
INCLUDE "../ld/eagle.app.v6.common.ld"