[f411re] No enough space for flash Nucleo F411RE many times

[haoxli]

Description

After flash image to Nucleo F411RE board for many times(>5), it will report that no space left on board, we need to reset the board for next flash.

Test Code

HelloWorld.js

Steps to Reproduction

1. $ make JS=samples/HelloWorld.js BOARD=nucleo_f411re
2. $ cp outdir/nucleo_f411re/zephyr.bin /media/<username>/NODE_F411RE/
3. Repeat the 2nd step for more than 5 times

Actual Result

$ minicom -D /dev/ttyACM0

Expected Result

Flash image without error for every times, and execute the code with output 'Hello, ZJS world!'

Test Builds

Branch	Build ID	Target Device	Date	Result
master	6180fec	ST Nucleo F411RE	May 27, 2017	Fail

[grgustaf]

This sounds like maybe it's a problem with the board's flashing mechanism, not our code? Could you try this with some native Zephyr images or even non-Zephyr images?

[haoxli]

Yes, I've tried the native sample application Hello World.

$ cd <zephyr_root_path>
$ source zephyr-env.sh
$ cd $ZEPHYR_BASE/samples/hello_world/
$ make BOARD=nucleo_f411re

After flash many times, this still work normally.

[grgustaf]

Note: we don't have this board but will look into getting one.