diff options
Diffstat (limited to 'nuttx/Documentation/NuttXNxFlat.html')
| -rw-r--r-- | nuttx/Documentation/NuttXNxFlat.html | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/nuttx/Documentation/NuttXNxFlat.html b/nuttx/Documentation/NuttXNxFlat.html index b08b65801..d6ada4e9b 100644 --- a/nuttx/Documentation/NuttXNxFlat.html +++ b/nuttx/Documentation/NuttXNxFlat.html @@ -10,7 +10,7 @@ <td> <h1><big><font color="#3c34ec"><i>NXFLAT</i></font></big></h1> <h2><font color="#dc143c">>>> Under Construction <<<</font></h2> - <p>Last Updated: March 20, 2011</p> + <p>Last Updated: May 8, 2011</p> </td> </tr> </table> @@ -193,10 +193,12 @@ <a name="limitations"><h2>1.3 Limitations</h2></a> <ul> - <li><b>ROMFS Only</b>. - The initial NXFLAT release will work only with executable modules residing on a ROMFS - file system. + <li><b>ROMFS (or RAM maps) Only</b>. + The initial NXFLAT release will work only with wither (1) executable modules residing on a ROMFS + file system, or (2) executables provided on other file systems provided that <code>CONFIG_FS_RAMMAP</code> + is defined. That is because the loader depends on the capability to <code>mmap()</code> the code segment. + See the <a href="NuttxUserGuide.html#mmapxip">NuttX User Guide</a> for further information. NUTTX does not provide any general kind of file mapping capability. In fact, <i>true </i>file mapping is only possible with RTOSs and MCUs that provide an MMU<sup>1</sup> and only ROMFS supports that kind of XIP execution from FLASH. |