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37 lines
1.5 KiB
Markdown
37 lines
1.5 KiB
Markdown
This is a Mongoose "Hello, world" that can be compiled under ESP8266 RTOS SDK.
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It sets up an AP (SSID `Mongoose`) and serves a "hello world" page on http://192.168.4.1/
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Most of the the boilerplate comes from [project_template](https://github.com/espressif/ESP8266_RTOS_SDK/tree/master/examples/project_template) (@ [3ca6af5](https://github.com/espressif/ESP8266_RTOS_SDK/tree/3ca6af5da68678d809b34c7cd98bee71e0235039/examples/project_template)) with minimal changes.
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To build with no changes to the SDK, you will need a module with 1MB (8Mb) flash or more.
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Compile (for NodeMCU 1.0):
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```
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$ export SDK_PATH=/path/to/ESP8266_RTOS_SDK
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$ export BIN_PATH=./bin
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$ make clean; make BOOT=new APP=1 SPI_SPEED=40 SPI_MODE=dio SPI_SIZE_MAP=6
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```
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Flash (using [esptool](https://github.com/themadinventor/esptool)):
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```
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$ esptool.py --port /dev/ttyUSB0 --baud 230400 \
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write_flash --flash_mode=dio --flash_size=32m \
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0x00000 ${SDK_PATH}/bin/boot_v1.4\(b1\).bin \
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0x01000 ${BIN_PATH}/upgrade/user1.4096.new.6.bin
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```
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The output can be made to fit in 512KB (4Mb), but stock linker scripts do not reserve enough space for code.
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Custom linker script is provided for that, so you can use it for smaller devices like so (example that will work with ESP-01):
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```
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$ make clean; make BOOT=none APP=0 SPI_SPEED=40 SPI_MODE=qio SPI_SIZE_MAP=0 LD_FILE=ld/eagle.app.v6.512.compact.ld
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$ esptool.py --port /dev/ttyUSB0 --baud 230400 \
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write_flash --flash_mode=qio --flash_size=4m \
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0x00000 ${BIN_PATH}/eagle.flash.bin \
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0x10000 ${BIN_PATH}/eagle.irom0text.bin
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```
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