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micropython
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debbaac1
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debbaac1
authored
9 years ago
by
Paul Sokolovsky
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esp8266: Update flashing instructions in README.
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esp8266/README.md
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@@ -32,7 +32,8 @@ Build instructions
The tool chain required for the build is the OpenSource ESP SDK, which can be
found at
<https://github.com/pfalcon/esp-open-sdk>
. Clone this repository and
run
`make`
in its directory to build and install the SDK locally. Make sure
to add toolchain bin directory to your PATH.
to add toolchain bin directory to your PATH. Read esp-open-sdk's README for
additional important information on toolchain setup.
Add the external dependencies to the MicroPython repository checkout:
```
bash
...
...
@@ -46,22 +47,26 @@ Then, to build MicroPython for the ESP8266, just run:
$
cd
esp8266
$
make
```
This should produce binary images in the
`build/`
subdirectory. To flash them
to your ESP8266, use:
This will produce binary images in the
`build/`
subdirectory. If you install
MicroPython to your module for the first time, or after installing any other
firmware, you should erase flash completely:
```
esptool.py --port /dev//ttyXXX erase_flash
```
Erase flash also as a troubleshooting measure, if a module doesn't behave as
expected.
To flash MicroPython image to your ESP8266, use:
```
bash
$
make deploy
```
This will use the
`esptool.py`
script to download the images. You must have
your ESP module in the bootloader, and connected to a serial port on your PC.
your ESP module in the bootloader
mode
, and connected to a serial port on your PC.
The default serial port is
`/dev/ttyACM0`
. To specify another, use, eg:
```
bash
$
make
PORT
=
/dev/ttyUSB0 deploy
```
The images that are built are:
-
`firmware.elf-0x00000.bin`
: to be flashed at 0x00000
-
`firmware.elf-0x10000.bin`
: to be flashed at 0x10000
There is also a combined image, made up of the above 2 binary files with the
appropriate padding:
-
`firmware-combined.bin`
: to be flashed at 0x00000
The image produced is
`firmware-combined.bin`
, to be flashed at 0x00000.
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