UM0844 datasheet(28/43 Pages) STMICROELECTRONICS

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Working at application level (userland)

UM0844

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Doc ID 16544 Rev 3

followed by the command:

# service nfs start

Starting NFS services: [ OK ]

Starting NFS quotas: [ OK ]

Starting NFS daemon: [ OK ]

Starting NFS mountd: [ OK ]

Every time you change that file and NFS service was already started, you need either to

restart it or to force NFS daemon to reload the new configuration:

# exportfs -a

4.1.2

Incremental changes to Flash filesystem

If the root filesystem is stored on Flash memory, it is possible to transfer files from the PC to

the target board in the following ways:

●

Transfer by USB pendrive

●

Transfer by MMC/SD card

●

Transfer by LAN (TFTP)

4.1.3

Flash filesystem full replacement

To replace the entire filesystem on Flash memory, you can:

●

Rewrite the root filesystem partition by USB Flasher tool

●

Rewrite the root filesystem partition from U-Boot

4.2

Command line cross-development

The most important item concerning host packages is the cross-development toolchain, a

set of programs running on a host PC, but targeting ARM-specific code output with support

for:

●

Cross-compilation of source code to generate native object code for the ARM CPU

cores integrated into SPEAr embedded MPU family

●

Cross-linking of ARM object code to generate executable programs or (dynamically

linkable) shared libraries

●

Managing object code archives, incremental rebuilding and other auxiliary tasks

The provided toolchain is based on the widely adopted open source GNU toolset. A

summary of the main available command-line tools is reported in Table 1. For detailed

documentation please consult the GNU Web site: http://www.gnu.org/manual/manual.html.

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