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nrf: Remove default FROZEN_MPY_DIR.

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Saves 448 bytes of flash. Can still be enabled using:

    make FROZEN_MPY_DIR=freeze BOARD=foo
This commit is contained in:
Ayke van Laethem 2017-11-21 18:16:10 +01:00 committed by Damien George
parent b493de75f3
commit 03b8429c0c
2 changed files with 14 additions and 2 deletions
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2
ports/nrf/Makefile
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@ -29,8 +29,6 @@ endif
# qstr definitions (must come before including py.mk)
QSTR_DEFS = qstrdefsport.h $(BUILD)/pins_qstr.h
FROZEN_MPY_DIR = freeze
# include py core make definitions
include ../../py/py.mk

14
ports/nrf/README.md
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@ -72,6 +72,20 @@ The **make sd** will trigger a flash of the bluetooth stack before that applicat
Note: further tuning of features to include in bluetooth or even setting up the device to use REPL over Bluetooth can be configured in the `bluetooth_conf.h`.
## Compile with frozen modules
Frozen modules are Python modules compiled to bytecode and added to the firmware
image, as part of MicroPython. They can be imported as usual, using the `import`
statement. The advantage is that frozen modules use a lot less RAM as the
bytecode is stored in flash, not in RAM like when importing from a filesystem.
Also, frozen modules are available even when no filesystem is present to import
from.
To use frozen modules, put them in a directory (e.g. `freeze/`) and supply
`make` with the given directory. For example:
make BOARD=pca10040 FROZEN_MPY_DIR=freeze
## Target Boards and Make Flags
Target Board (BOARD) | Bluetooth Stack (SD) | Bluetooth Support | Flash Util