| How to Reduce Application Code Size |
| =================================== |
| |
| Gettng your application to fit in an image slot can be challenging, |
| particularly on flash constrained hardware such as the nRF51. Below are |
| some suggested system configuration settings that reduce the code size |
| of your Mynewt image. |
| |
| +------------------------+---------------------------------------------+ |
| | Setting | Description | |
| +========================+=============================================+ |
| | LOG\_LEVEL: 255 | Disable all logging. | |
| +------------------------+---------------------------------------------+ |
| | LOG\_CLI: 0 | Disable log shell commands. | |
| +------------------------+---------------------------------------------+ |
| | STATS\_CLI: 0 | Disable stats shell commands. | |
| +------------------------+---------------------------------------------+ |
| | SHELL\_TASK: 0 | Disable the interactive shell. | |
| +------------------------+---------------------------------------------+ |
| | SHELL\_OS\_MODULE: 0 | Disable memory management shell commands. | |
| +------------------------+---------------------------------------------+ |
| | SHELL\_CMD\_HELP: 0 | Disable help for shell commands. | |
| +------------------------+---------------------------------------------+ |
| |
| You can use the ``newt target set`` command to set the syscfg settings |
| in the ``syscfg.yml`` file for the target. See the :doc:`Newt Tool Command |
| Guide <../../../../newt/command_list/newt_target>` for the command syntax. |
| |
| **Note:** The ``newt target set`` command deletes all the current syscfg |
| settings in the target ``syscfg.yml`` file and only sets the syscfg |
| settings specified in the command. If you are experimenting with |
| different settings to see how they affect the code size and do not want |
| to reenter all the setting values in the ``newt target set`` command, |
| you can use the ``newt target amend`` command. This command adds or |
| updates only the settings specified in the command and does not |
| overwrite other setting values. While you can also edit the target |
| ``syscfg.yml`` file directly, we recommend that you use the |
| ``newt target`` commands. |
