Add STM32 FLASH driver
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@3573 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo
parent
846f19a7cd
commit
aaddc0bb6b
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@ -92,7 +92,7 @@ int namedapp_isavail(FAR const char *appname)
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return ERROR;
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}
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int exec_namedapp(FAR const char *appname, FAR const char *argv[])
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int exec_namedapp(FAR const char *appname, FAR const char **argv)
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{
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int i;
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@ -1727,5 +1727,7 @@
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* Remove clock_getutc(). It is replaces with clock_gettime(CLOCK_ACTIVETIME).
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Add other RTC related changes provided by Uros Platise.
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* arch/arm/src/stm32/stm32_flash.c: Add support for access to on-chp STM32
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FLASH; beginning of integration with NXFFS (Uros Platise).
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@ -12,7 +12,7 @@
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<h1><big><font color="#3c34ec">
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<i>NuttX RTOS Porting Guide</i>
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</font></big></h1>
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<p>Last Updated: April 14, 2011</p>
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<p>Last Updated: May 6, 2011</p>
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</td>
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</tr>
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</table>
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@ -886,6 +886,9 @@ fs/
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|-- fat/
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| |-- Make.defs
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| `-- <i>(fat file system source files)</i>
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|-- nxffs/
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| |-- Make.defs
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| `-- <i>(NXFFS file system source files)</i>
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|-- romfs/
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| |-- Make.defs
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| `-- <i>(romfs file system source files)</i>
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@ -1949,7 +1952,8 @@ extern void up_ledoff(int led);
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NuttX supports the standard <code>mount()</code> command that allows
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a block driver to be bound to a mountpoint within the pseudo file system
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and to a file system.
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At present, NuttX supports only the VFAT file system.
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At present, NuttX supports the standard VFAT and ROMFS file systems and
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well as a special, wear-leveling NuttX FLASH File System (NXFFS).
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</p>
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<p><b>Comparison to Linux</b>
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@ -3440,6 +3444,39 @@ build
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<li>
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<code>CONFIG_FAT_SECTORSIZE</code>: Max supported sector size.
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</li>
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<li>
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<code>CONFIG_FS_NXFFS</code>: Enable NuttX FLASH file system (NXFF) support.
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</li>
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<li>
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<code>CONFIG_NXFFS_ERASEDSTATE</code>: The erased state of FLASH.
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This must have one of the values of <code>0xff</code> or <code>0x00</code>.
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Default: <code>0xff</code>.
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</li>
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<li>
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<code>CONFIG_NXFFS_PACKTHRESHOLD</code>: When packing flash file data,
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don't both with file chunks smaller than this number of data bytes.
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Default: 32.
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</li>
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<li>
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<code>CONFIG_NXFFS_MAXNAMLEN</code>: The maximum size of an NXFFS file name.
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Default: 255.
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</li>
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<li>
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<code>CONFIG_NXFFS_PACKTHRESHOLD</code>: When packing flash file data,
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don't both with file chunks smaller than this number of data bytes.
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Default: 32.
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</li>
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<li>
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<code>CONFIG_NXFFS_TAILTHRESHOLD</code>: clean-up can either mean
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packing files together toward the end of the file or, if file are
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deleted at the end of the file, clean up can simply mean erasing
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the end of FLASH memory so that it can be re-used again. However,
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doing this can also harm the life of the FLASH part because it can
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mean that the tail end of the FLASH is re-used too often. This
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threshold determines if/when it is worth erased the tail end of FLASH
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and making it available for re-use (and possible over-wear).
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Default: 8192.
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</li>
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<li>
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<code>CONFIG_FS_ROMFS</code>: Enable ROMFS file system support
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</li>
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37
nuttx/TODO
37
nuttx/TODO
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@ -1,4 +1,4 @@
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NuttX TODO List (Last updated April 19 2011)
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NuttX TODO List (Last updated May 6, 2011)
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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nuttx/
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@ -14,7 +14,7 @@ nuttx/
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(2) USB (drivers/usbdev, drivers/usbhost)
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(5) Libraries (lib/)
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(13) File system/Generic drivers (fs/, drivers/)
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(2) Graphics subystem (graphics/)
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(1) Graphics subystem (graphics/)
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(1) Pascal add-on (pcode/)
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(1) Documentation (Documentation/)
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(4) Build system / Toolchains
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@ -23,7 +23,7 @@ nuttx/
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(1) ARM/C5471 (arch/arm/src/c5471/)
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(3) ARM/DM320 (arch/arm/src/dm320/)
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(2) ARM/i.MX (arch/arm/src/imx/)
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(4) ARM/LPC17xx (arch/arm/src/lpc17xx/)
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(3) ARM/LPC17xx (arch/arm/src/lpc17xx/)
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(7) ARM/LPC214x (arch/arm/src/lpc214x/)
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(2) ARM/LPC313x (arch/arm/src/lpc313x/)
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(3) ARM/STR71x (arch/arm/src/str71x/)
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@ -53,6 +53,8 @@ o Task/Scheduler (sched/)
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Description: atexit() supports registration of one function called on exit().
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Should task_delete() also cause atexit() function to be called?
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Update: atexit() is only built into the system if CONFIG_SCHED_ATEXT
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is defined in the configuration.
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Status: Open
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Priority: Low, task_delete() is non-standard and its behavior is
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unspecified.
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@ -64,6 +66,9 @@ o Task/Scheduler (sched/)
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Description: Implement sys/wait.h and functions. Consider implementing wait,
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waitpid, waitid. At present, a parent has no information about
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child tasks.
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Update: A simple but usable version of waitpid() has been included.
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This version is not compliant with all specifications and can be
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enabled with CONFIG_SCHED_WAITPID.
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Status: Open
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Priority: Low
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@ -182,7 +187,7 @@ o Binary loaders (binfmt/)
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Status: Open
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Priority: Low
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Description: Windows build issue. Almost all configurations that use NXFLAT have
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Description: Windows build issue. Some of the configurations that use NXFLAT have
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the linker script specified like this:
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NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat.ld -no-check-sections
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@ -226,7 +231,7 @@ o Network (net/, drivers/net)
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Priority: Medium, The feature is not important, but it is important
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for NuttX to resolve the architectural issues.
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Description: Sendoto() and multiple network interface support:
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Description: sendto() and multiple network interface support:
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When polled, would have to assure that the destination IP
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is on the subnet served by the polling driver.
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Status: Open
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@ -457,7 +462,7 @@ o File system / Generic drivers (fs/, drivers/)
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Status: Open
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Priority: Low
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Description: Time stamping is no implemented in the NuttX FA file system.
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Description: Time stamping is not implemented in the NuttX FA file system.
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See the following functions in fs/fat/fs_fat32util.c:
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fat_systime2fattime() and fat_fattime2systime()
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Status: Open
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@ -466,14 +471,6 @@ o File system / Generic drivers (fs/, drivers/)
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o Graphics subystem (graphics/)
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Description: If CONFIG_NX is enabled, the build fails the first time
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saying that there is "No rule to make target..." for one of the
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auto-generated graphics files. This is a nuisance, but if you
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simply build again (with the source files already auto-generated)
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the problem does not reoccur.
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Status: Open
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Priority: Low, the work-around is simple
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Description: Testing of all APIs is not complete. See
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http://nuttx.sourceforge.net/NXGraphicsSubsystem.html#testcoverage
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Status: Open
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@ -662,10 +659,10 @@ o ARM/DM320 (arch/arm/src/dm320/)
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o ARM/i.MX (arch/arm/src/imx/)
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Description: The basic port of the i.MX1 architecuture is underway. The port
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Description: The basic port of the i.MX1 architecuture was never finished. The port
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is incomplete (as of this writing, is still lacks a timer, interrupt
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decoding, USB, network) and untested.
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Status: Open (and in work)
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Status: Open
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Priority: Medium (high if you need i.MX1/L support)
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Description: SPI methods are not thread safe. Needs a semaphore to protect from re-entrancy.
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@ -697,14 +694,6 @@ o ARM/LPC17xx (arch/arm/src/lpc17xx/)
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Status: Open
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Priority: Medium-Low (unless you need the display on the LPC1766STK!)
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Description: SLIP (Configuration olimex-lpc1766stk/slip-httpd) only works with VERBOSE
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debug disabled. For some reason, certain debug statements hang(?).
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Also, this example does not use UART1's hardware flow control. UART1
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hardware flow control is partially implemented but does not behave as
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expected. Hardware flow control needs a little more work.
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Status: Open
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Priority: Low
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o ARM/LPC214x (arch/arm/src/lpc214x/)
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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@ -45,8 +45,9 @@ CMN_CSRCS = up_allocateheap.c up_assert.c up_blocktask.c up_copystate.c \
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up_usestack.c up_doirq.c up_hardfault.c up_svcall.c
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CHIP_ASRCS =
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CHIP_CSRCS = stm32_start.c stm32_rcc.c stm32_gpio.c stm32_idle.c \
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CHIP_CSRCS = stm32_start.c stm32_rcc.c stm32_gpio.c stm32_flash.c \
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stm32_irq.c stm32_timerisr.c stm32_dma.c stm32_lowputc.c \
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stm32_serial.c stm32_spi.c stm32_usbdev.c stm32_sdio.c \
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stm32_tim.c stm32_i2c.c stm32_pwr.c stm32_rtc.c stm32_waste.c
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stm32_tim.c stm32_i2c.c stm32_pwr.c stm32_rtc.c \
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stm32_idle.c stm32_waste.c
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@ -0,0 +1,115 @@
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/************************************************************************************
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* arch/arm/src/stm32/chip/stm32_flash.h
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*
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* Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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#ifndef __ARCH_ARM_SRC_STM32_CHIP_STM32_FLASH_H
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#define __ARCH_ARM_SRC_STM32_CHIP_STM32_FLASH_H
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/************************************************************************************
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* Pre-processor Definitions
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************************************************************************************/
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#ifdef CONFIG_STM32_LOWDENSITY
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# define STM32_FLASH_NPAGES 32
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# define STM32_FLASH_PAGESIZE 1024
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#elif CONFIG_STM32_MEDIUMDENSITY
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# define STM32_FLASH_NPAGES 128
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# define STM32_FLASH_PAGESIZE 1024
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#elif CONFIG_STM32_CONNECTIVITYLINE
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# define STM32_FLASH_NPAGES 128
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# define STM32_FLASH_PAGESIZE 2048
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#elif CONFIG_STM32_HIGHDENSITY
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# define STM32_FLASH_NPAGES 256
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# define STM32_FLASH_PAGESIZE 2048
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#endif
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#define STM32_FLASH_SIZE (STM32_FLASH_NPAGES * STM32_FLASH_PAGESIZE)
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/* Register Offsets *****************************************************************/
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#define STM32_FLASH_ACR_OFFSET 0x0000
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#define STM32_FLASH_KEYR_OFFSET 0x0004
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#define STM32_FLASH_OPTKEYR_OFFSET 0x0008
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#define STM32_FLASH_SR_OFFSET 0x000c
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#define STM32_FLASH_CR_OFFSET 0x0010
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#define STM32_FLASH_AR_OFFSET 0x0014
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#define STM32_FLASH_OBR_OFFSET 0x001c
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#define STM32_FLASH_WRPR_OFFSET 0x0020
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/* Register Addresses ***************************************************************/
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#define STM32_FLASH_ACR (STM32_FLASHIF_BASE+STM32_FLASH_ACR_OFFSET)
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#define STM32_FLASH_KEYR (STM32_FLASHIF_BASE+STM32_FLASH_KEYR_OFFSET)
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#define STM32_FLASH_OPTKEYR (STM32_FLASHIF_BASE+STM32_FLASH_OPTKEYR_OFFSET)
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#define STM32_FLASH_SR (STM32_FLASHIF_BASE+STM32_FLASH_SR_OFFSET)
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#define STM32_FLASH_CR (STM32_FLASHIF_BASE+STM32_FLASH_CR_OFFSET)
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#define STM32_FLASH_AR (STM32_FLASHIF_BASE+STM32_FLASH_AR_OFFSET)
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#define STM32_FLASH_OBR (STM32_FLASHIF_BASE+STM32_FLASH_OBR_OFFSET)
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#define STM32_FLASH_WRPR (STM32_FLASHIF_BASE+STM32_FLASH_WRPR_OFFSET)
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/* Register Bitfield Definitions ****************************************************/
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/* TODO: Complete FLASH details from the STM32F10xxx Flash programming manual. */
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/* Flash Status Register (SR) */
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#define FLASH_SR_BSY (1 << 0) /* Busy */
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#define FLASH_SR_PGERR (1 << 2) /* Programming Error */
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#define FLASH_SR_WRPRT_ERR (1 << 4) /* Write Protection Error */
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#define FLASH_SR_EOP (1 << 5) /* End of Operation */
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/* Flash Control Register (CR) */
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#define FLASH_CR_PG (1 << 0) /* Program Page */
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#define FLASH_CR_PER (1 << 1) /* Page Erase */
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#define FLASH_CR_MER (1 << 2) /* Mass Erase */
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#define FLASH_CR_OPTPG (1 << 4) /* Option Byte Programming */
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#define FLASH_CR_OPTER (1 << 5) /* Option Byte Erase */
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#define FLASH_CR_STRT (1 << 6) /* Start Erase */
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#define FLASH_CR_LOCK (1 << 7) /* Page Locked or Lock Page */
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#define FLASH_CR_OPTWRE (1 << 9) /* Option Bytes Write Enable */
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#define FLASH_CR_ERRIE (1 << 10) /* Error Interrupt Enable */
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#define FLASH_CR_EOPIE (1 << 12) /* End of Program Interrupt Enable */
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/* Flash Access Control Register (ACR) */
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#define FLASH_ACR_LATENCY_SHIFT (0)
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#define FLASH_ACR_LATENCY_MASK (7 << FLASH_ACR_LATENCY_SHIFT)
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# define FLASH_ACR_LATENCY_0 (0 << FLASH_ACR_LATENCY_SHIFT) /* FLASH Zero Latency cycle */
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# define FLASH_ACR_LATENCY_1 (1 << FLASH_ACR_LATENCY_SHIFT) /* FLASH One Latency cycle */
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# define FLASH_ACR_LATENCY_2 (2 << FLASH_ACR_LATENCY_SHIFT) /* FLASH Two Latency cycles */
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#define FLASH_ACR_HLFCYA (1 << 3) /* FLASH half cycle access */
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#define FLASH_ACR_PRTFBE (1 << 4) /* FLASH prefetch enable */
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#endif /* __ARCH_ARM_SRC_STM32_CHIP_STM32_FLASH_H */
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@ -0,0 +1,228 @@
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/************************************************************************************
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* arch/arm/src/stm32/stm32_flash.c
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*
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* Copyright (C) 2011 Uros Platise. All rights reserved.
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* Author: Uros Platise <uros.platise@isotel.eu>
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions
|
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* are met:
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*
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||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
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*
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************************************************************************************/
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/** \file
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* \author Uros Platise
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* \brief STM32 Flash - Program and Data Memory
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*
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* Provides standard flash access function, to be used also by the
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* drivers/mtd/progmem.c program memory flash mtd driver.
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* The interface is to be defined in the include/nuttx/progmem.h
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*
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* Requirements:
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* - During write/erase operatoins on FLASH, HSI must be ON.
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* - Low Power Modes are not permitted during write/erase
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*/
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#include <nuttx/config.h>
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#include <nuttx/arch.h>
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#include <errno.h>
|
||||
|
||||
#include "stm32_flash.h"
|
||||
#include "stm32_rcc.h"
|
||||
#include "stm32_waste.h"
|
||||
#include "up_arch.h"
|
||||
|
||||
|
||||
/************************************************************************************
|
||||
* Declarations
|
||||
************************************************************************************/
|
||||
|
||||
#define FLASH_KEY1 0x45670123
|
||||
#define FLASH_KEY2 0xCDEF89AB
|
||||
|
||||
|
||||
/************************************************************************************
|
||||
* Private Functions
|
||||
************************************************************************************/
|
||||
|
||||
void stm32_flash_unlock(void)
|
||||
{
|
||||
while( getreg32(STM32_FLASH_SR) & FLASH_SR_BSY ) up_waste();
|
||||
|
||||
if ( getreg32(STM32_FLASH_CR) & FLASH_CR_LOCK ) {
|
||||
|
||||
/* Unlock sequence */
|
||||
|
||||
putreg32(FLASH_KEY1, STM32_FLASH_KEYR);
|
||||
putreg32(FLASH_KEY2, STM32_FLASH_KEYR);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void stm32_flash_lock(void)
|
||||
{
|
||||
modifyreg16(STM32_FLASH_CR, 0, FLASH_CR_LOCK);
|
||||
}
|
||||
|
||||
|
||||
/************************************************************************************
|
||||
* Public Functions
|
||||
************************************************************************************/
|
||||
|
||||
uint16_t up_progmem_npages(void)
|
||||
{
|
||||
return STM32_FLASH_NPAGES;
|
||||
}
|
||||
|
||||
|
||||
bool up_progmem_isuniform(void)
|
||||
{
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
||||
uint16_t up_progmem_pagesize(uint16_t page)
|
||||
{
|
||||
return STM32_FLASH_PAGESIZE;
|
||||
}
|
||||
|
||||
|
||||
int up_progmem_getpage(uint32_t addr)
|
||||
{
|
||||
if (addr >= STM32_FLASH_SIZE)
|
||||
return -EFAULT;
|
||||
|
||||
return addr / STM32_FLASH_PAGESIZE;
|
||||
}
|
||||
|
||||
|
||||
int up_progmem_erasepage(uint16_t page)
|
||||
{
|
||||
uint32_t addr;
|
||||
uint16_t count;
|
||||
|
||||
if (page >= STM32_FLASH_NPAGES)
|
||||
return -EFAULT;
|
||||
|
||||
/* Get flash ready and begin erasing single page */
|
||||
|
||||
if ( !(getreg32(STM32_RCC_CR) & RCC_CR_HSION) )
|
||||
return -EPERM;
|
||||
|
||||
stm32_flash_unlock();
|
||||
|
||||
modifyreg32(STM32_FLASH_CR, 0, FLASH_CR_PER);
|
||||
putreg32(page * STM32_FLASH_PAGESIZE, STM32_FLASH_AR);
|
||||
modifyreg32(STM32_FLASH_CR, 0, FLASH_CR_STRT);
|
||||
|
||||
while( getreg32(STM32_FLASH_SR) & FLASH_SR_BSY ) up_waste();
|
||||
|
||||
modifyreg32(STM32_FLASH_CR, FLASH_CR_PER, 0);
|
||||
|
||||
/* Verify */
|
||||
|
||||
for (addr = page * STM32_FLASH_PAGESIZE + STM32_FLASH_BASE, count = STM32_FLASH_PAGESIZE;
|
||||
count; count-=4, addr += 4) {
|
||||
|
||||
if (getreg32(addr) != 0xFFFFFFFF)
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
return STM32_FLASH_PAGESIZE;
|
||||
}
|
||||
|
||||
|
||||
int up_progmem_ispageerased(uint16_t page)
|
||||
{
|
||||
uint32_t addr;
|
||||
uint16_t count;
|
||||
uint16_t bwritten = 0;
|
||||
uint16_t hword;
|
||||
|
||||
if (page >= STM32_FLASH_NPAGES)
|
||||
return -EFAULT;
|
||||
|
||||
/* Verify */
|
||||
|
||||
for (addr = page * STM32_FLASH_PAGESIZE + STM32_FLASH_BASE, count = STM32_FLASH_PAGESIZE;
|
||||
count; count--, addr++) {
|
||||
|
||||
if (getreg8(addr) != 0xFF) bwritten++;
|
||||
}
|
||||
|
||||
return bwritten;
|
||||
}
|
||||
|
||||
|
||||
int up_progmem_write(uint32_t addr, const void *buf, size_t count)
|
||||
{
|
||||
uint16_t *hword = (uint16_t *)buf;
|
||||
size_t written = count;
|
||||
|
||||
/* STM32 requires half-word access */
|
||||
|
||||
if (count & 1)
|
||||
return -EINVAL;
|
||||
|
||||
/* Check for valid address range */
|
||||
|
||||
if ( (addr+count) >= STM32_FLASH_SIZE)
|
||||
return -EFAULT;
|
||||
|
||||
/* Get flash ready and begin flashing */
|
||||
|
||||
if ( !(getreg32(STM32_RCC_CR) & RCC_CR_HSION) )
|
||||
return -EPERM;
|
||||
|
||||
stm32_flash_unlock();
|
||||
|
||||
modifyreg32(STM32_FLASH_CR, 0, FLASH_CR_PG);
|
||||
|
||||
for (addr += STM32_FLASH_BASE; count; count--, hword++, addr+=2) {
|
||||
|
||||
/* Write half-word and wait to complete */
|
||||
|
||||
putreg16(*hword, addr);
|
||||
|
||||
while( getreg32(STM32_FLASH_SR) & FLASH_SR_BSY ) up_waste();
|
||||
|
||||
/* Verify */
|
||||
|
||||
if (getreg32(STM32_FLASH_SR) & FLASH_SR_WRPRT_ERR) {
|
||||
modifyreg32(STM32_FLASH_CR, FLASH_CR_PG, 0);
|
||||
return -EROFS;
|
||||
}
|
||||
|
||||
if (getreg16(addr) != *hword) {
|
||||
modifyreg32(STM32_FLASH_CR, FLASH_CR_PG, 0);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
modifyreg32(STM32_FLASH_CR, FLASH_CR_PG, 0);
|
||||
return written;
|
||||
}
|
||||
|
|
@ -1,8 +1,8 @@
|
|||
/************************************************************************************
|
||||
* arch/arm/src/stm32/stm32_flash.h
|
||||
*
|
||||
* Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||||
* Copyright (C) 2011 Uros Platise. All rights reserved.
|
||||
* Author: Uros Platise <uros.platise@isotel.eu>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
|
|
@ -36,64 +36,10 @@
|
|||
#ifndef __ARCH_ARM_SRC_STM32_STM32_FLASH_H
|
||||
#define __ARCH_ARM_SRC_STM32_STM32_FLASH_H
|
||||
|
||||
/************************************************************************************
|
||||
* Included Files
|
||||
************************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include <nuttx/progmem.h>
|
||||
|
||||
#include "chip.h"
|
||||
|
||||
/************************************************************************************
|
||||
* Pre-processor Definitions
|
||||
************************************************************************************/
|
||||
|
||||
/* Register Offsets *****************************************************************/
|
||||
|
||||
#define STM32_FLASH_ACR_OFFSET 0x0000
|
||||
#define STM32_FLASH_KEYR_OFFSET 0x0004
|
||||
#define STM32_FLASH_OPTKEYR_OFFSET 0x0008
|
||||
#define STM32_FLASH_SR_OFFSET 0x000c
|
||||
#define STM32_FLASH_CR_OFFSET 0x0010
|
||||
#define STM32_FLASH_AR_OFFSET 0x0014
|
||||
#define STM32_FLASH_OBR_OFFSET 0x001c
|
||||
#define STM32_FLASH_WRPR_OFFSET 0x0020
|
||||
|
||||
/* Register Addresses ***************************************************************/
|
||||
|
||||
#define STM32_FLASH_ACR (STM32_FLASHIF_BASE+STM32_FLASH_ACR_OFFSET)
|
||||
#define STM32_FLASH_KEYR (STM32_FLASHIF_BASE+STM32_FLASH_KEYR_OFFSET)
|
||||
#define STM32_FLASH_OPTKEYR (STM32_FLASHIF_BASE+STM32_FLASH_OPTKEYR_OFFSET)
|
||||
#define STM32_FLASH_SR (STM32_FLASHIF_BASE+STM32_FLASH_SR_OFFSET)
|
||||
#define STM32_FLASH_CR (STM32_FLASHIF_BASE+STM32_FLASH_CR_OFFSET)
|
||||
#define STM32_FLASH_AR (STM32_FLASHIF_BASE+STM32_FLASH_AR_OFFSET)
|
||||
#define STM32_FLASH_OBR (STM32_FLASHIF_BASE+STM32_FLASH_OBR_OFFSET)
|
||||
#define STM32_FLASH_WRPR (STM32_FLASHIF_BASE+STM32_FLASH_WRPR_OFFSET)
|
||||
|
||||
/* Register Bitfield Definitions ****************************************************/
|
||||
/* TODO: FLASH details from the STM32F10xxx Flash programming manual. */
|
||||
|
||||
/* Flash Access Control Register (ACR) */
|
||||
|
||||
#define ACR_LATENCY_SHIFT (0)
|
||||
#define ACR_LATENCY_MASK (7 << ACR_LATENCY_SHIFT)
|
||||
# define ACR_LATENCY_0 (0 << ACR_LATENCY_SHIFT) /* FLASH Zero Latency cycle */
|
||||
# define ACR_LATENCY_1 (1 << ACR_LATENCY_SHIFT) /* FLASH One Latency cycle */
|
||||
# define ACR_LATENCY_2 (2 << ACR_LATENCY_SHIFT) /* FLASH Two Latency cycles */
|
||||
#define ACR_HLFCYA (1 << 3) /* FLASH half cycle access */
|
||||
#define ACR_PRTFBE (1 << 4) /* FLASH prefetch enable */
|
||||
|
||||
/************************************************************************************
|
||||
* Public Types
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Public Data
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Public Functions
|
||||
************************************************************************************/
|
||||
#include "chip/stm32_flash.h"
|
||||
|
||||
#endif /* __ARCH_ARM_SRC_STM32_STM32_FLASH_H */
|
||||
|
||||
|
|
|
|||
|
|
@ -413,8 +413,8 @@ static inline void stm32_stdclockconfig(void)
|
|||
/* Enable FLASH prefetch buffer and 2 wait states */
|
||||
|
||||
regval = getreg32(STM32_FLASH_ACR);
|
||||
regval &= ~ACR_LATENCY_MASK;
|
||||
regval |= (ACR_LATENCY_2|ACR_PRTFBE);
|
||||
regval &= ~FLASH_ACR_LATENCY_MASK;
|
||||
regval |= (FLASH_ACR_LATENCY_2|FLASH_ACR_PRTFBE);
|
||||
putreg32(regval, STM32_FLASH_ACR);
|
||||
|
||||
/* Set the HCLK source/divider */
|
||||
|
|
|
|||
|
|
@ -518,6 +518,27 @@ defconfig -- This is a configuration file similar to the Linux
|
|||
Filesystem configuration
|
||||
CONFIG_FS_FAT - Enable FAT filesystem support
|
||||
CONFIG_FAT_SECTORSIZE - Max supported sector size
|
||||
CONFIG_FS_NXFFS: Enable NuttX FLASH file system (NXFF) support.
|
||||
CONFIG_NXFFS_ERASEDSTATE: The erased state of FLASH.
|
||||
This must have one of the values of 0xff or 0x00.
|
||||
Default: 0xff.
|
||||
CONFIG_NXFFS_PACKTHRESHOLD: When packing flash file data,
|
||||
don't both with file chunks smaller than this number of data bytes.
|
||||
Default: 32.
|
||||
CONFIG_NXFFS_MAXNAMLEN: The maximum size of an NXFFS file name.
|
||||
Default: 255.
|
||||
CONFIG_NXFFS_PACKTHRESHOLD: When packing flash file data,
|
||||
don't both with file chunks smaller than this number of data bytes.
|
||||
Default: 32.
|
||||
CONFIG_NXFFS_TAILTHRESHOLD: clean-up can either mean
|
||||
packing files together toward the end of the file or, if file are
|
||||
deleted at the end of the file, clean up can simply mean erasing
|
||||
the end of FLASH memory so that it can be re-used again. However,
|
||||
doing this can also harm the life of the FLASH part because it can
|
||||
mean that the tail end of the FLASH is re-used too often. This
|
||||
threshold determines if/when it is worth erased the tail end of FLASH
|
||||
and making it available for re-use (and possible over-wear).
|
||||
Default: 8192.
|
||||
CONFIG_FS_ROMFS - Enable ROMFS filesystem support
|
||||
|
||||
SPI driver
|
||||
|
|
|
|||
|
|
@ -522,8 +522,10 @@ CONFIG_PREALLOC_TIMERS=4
|
|||
#
|
||||
# CONFIG_FS_FAT - Enable FAT filesystem support
|
||||
# CONFIG_FAT_SECTORSIZE - Max supported sector size
|
||||
# CONFIG_FS_NXFFS - Enable NX Flash File System
|
||||
# CONFIG_FS_ROMFS - Enable ROMFS filesystem support
|
||||
CONFIG_FS_FAT=y
|
||||
CONFIG_FS_NXFFS=y
|
||||
CONFIG_FS_ROMFS=y
|
||||
|
||||
#
|
||||
|
|
@ -891,15 +893,3 @@ CONFIG_APPS_DIR="../apps"
|
|||
|
||||
# Provide /dev/ramX and then: mount -t binfs /dev/ram0 /bin
|
||||
CONFIG_APPS_BINDIR=y
|
||||
|
||||
# Application configuration
|
||||
|
||||
CONFIG_APPS_DIR="../apps"
|
||||
|
||||
# Application configuration
|
||||
|
||||
CONFIG_APPS_DIR="../apps"
|
||||
|
||||
# Application configuration
|
||||
|
||||
CONFIG_APPS_DIR="../apps"
|
||||
|
|
|
|||
|
|
@ -74,6 +74,7 @@
|
|||
#include <nuttx/clock.h>
|
||||
#include <nuttx/time.h>
|
||||
#include <nuttx/rtc.h>
|
||||
#include <nuttx/progmem.h>
|
||||
|
||||
#include <nuttx/i2c.h>
|
||||
#include <nuttx/sensors/st_lis331dl.h>
|
||||
|
|
@ -512,6 +513,36 @@ int sif_main(int argc, char *argv[])
|
|||
t_set.tv_sec = atoi(argv[2]);
|
||||
clock_settime(CLOCK_REALTIME, &t_set);
|
||||
}
|
||||
else if (!strcmp(argv[1], "free") ) {
|
||||
uint16_t page = 0, stpage = 0xFFFF;
|
||||
int status;
|
||||
do {
|
||||
status = up_progmem_ispageerased(page++);
|
||||
|
||||
/* Is this beginning of new free space section */
|
||||
if (status == 0) {
|
||||
if (stpage == 0xFFFF) stpage = page-1;
|
||||
}
|
||||
else if (status != 0) {
|
||||
if (stpage != 0xFFFF) {
|
||||
printf("Free Range:\t%d\t-\t%d\n", stpage, page-2);
|
||||
stpage = 0xFFFF;
|
||||
}
|
||||
}
|
||||
}
|
||||
while (status >= 0);
|
||||
}
|
||||
else if (!strcmp(argv[1], "erase") && argc == 3 ) {
|
||||
int page = atoi(argv[2]);
|
||||
printf("Erase result: %d\n", up_progmem_erasepage(page) );
|
||||
}
|
||||
else if (!strcmp(argv[1], "flash") && argc == 3 ) {
|
||||
uint16_t page = atoi(argv[2]);
|
||||
uint32_t addr = page * up_progmem_pagesize(page);
|
||||
|
||||
printf("Write result: %d (writing to address %xh)\n",
|
||||
up_progmem_write( addr, "Test", 4 ), addr);
|
||||
}
|
||||
else if (!strcmp(argv[1], "i2c") && argc == 3) {
|
||||
int val = atoi(argv[2]);
|
||||
|
||||
|
|
@ -520,7 +551,7 @@ int sif_main(int argc, char *argv[])
|
|||
struct st_lis331dl_dev_s * lis = st_lis331dl_init(vsn_sif.i2c1, val);
|
||||
|
||||
if (lis) {
|
||||
struct st_lis331dl_vector_s * a;
|
||||
const struct st_lis331dl_vector_s * a;
|
||||
int i;
|
||||
uint32_t time_stamp = clock_systimer();
|
||||
|
||||
|
|
|
|||
|
|
@ -78,8 +78,8 @@ void sysclock_select_hsi(void)
|
|||
|
||||
// Set FLASH prefetch buffer and 1 wait state
|
||||
regval = getreg32(STM32_FLASH_ACR);
|
||||
regval &= ~ACR_LATENCY_MASK;
|
||||
regval |= (ACR_LATENCY_1|ACR_PRTFBE);
|
||||
regval &= ~FLASH_ACR_LATENCY_MASK;
|
||||
regval |= (FLASH_ACR_LATENCY_1|FLASH_ACR_PRTFBE);
|
||||
putreg32(regval, STM32_FLASH_ACR);
|
||||
|
||||
// Set the HCLK source/divider
|
||||
|
|
|
|||
|
|
@ -139,7 +139,7 @@ EXTERN const char *namedapp_getname(int index);
|
|||
*
|
||||
****************************************************************************/
|
||||
|
||||
EXTERN int exec_namedapp(FAR const char *appname, FAR const char *argv[]);
|
||||
EXTERN int exec_namedapp(FAR const char *appname, FAR const char **argv);
|
||||
|
||||
#undef EXTERN
|
||||
#if defined(__cplusplus)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,143 @@
|
|||
/****************************************************************************
|
||||
* include/nuttx/progmem.h
|
||||
*
|
||||
* Copyright(C) 2011 Uros Platise. All rights reserved.
|
||||
* Author: Uros Platise <uros.platise@isotel.eu>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __INCLUDE_NUTTX_PROGMEM_H
|
||||
#define __INCLUDE_NUTTX_PROGMEM_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
#undef EXTERN
|
||||
#if defined(__cplusplus)
|
||||
#define EXTERN extern "C"
|
||||
extern "C" {
|
||||
#else
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/* Return number of pages */
|
||||
|
||||
uint16_t up_progmem_npages(void);
|
||||
|
||||
/* Is program memory uniform or page size differs */
|
||||
|
||||
bool up_progmem_isuniform(void);
|
||||
|
||||
/* Return page size */
|
||||
|
||||
uint16_t up_progmem_pagesize(uint16_t page);
|
||||
|
||||
/* Address to page conversion
|
||||
* \param addr Address without flash offet (aligned to page0)
|
||||
* \return Page or negative value on error
|
||||
*
|
||||
* The following errors are reported (errno is not set!)
|
||||
* - EFAULT: On invalid address
|
||||
*/
|
||||
|
||||
int up_progmem_getpage(uint32_t addr);
|
||||
|
||||
/* Erase selected page.
|
||||
* \return page size or negative value on error
|
||||
*
|
||||
* The following errors are reported (errno is not set!)
|
||||
* - EFAULT: On invalid page
|
||||
* - EIO: On unsuccessful erase
|
||||
* - EROFS: On access to write protected area
|
||||
* - EACCES: Insufficient permissions (read/write protected)
|
||||
* - EPERM: If operation is not permitted due to some other constraints
|
||||
* (i.e. some internal block is not running etc.)
|
||||
*/
|
||||
|
||||
int up_progmem_erasepage(uint16_t page);
|
||||
|
||||
/* Checks whether page is erased
|
||||
*
|
||||
* Returns number of bytes written or negative value on error.
|
||||
* If it returns zero then complete page is empty (erased).
|
||||
*
|
||||
* The following errors are reported (errno is not set!)
|
||||
* - EFAULT: On invalid page
|
||||
*/
|
||||
|
||||
int up_progmem_ispageerased(uint16_t page);
|
||||
|
||||
/* Program data at given address
|
||||
* \return bytes written or negative value on error
|
||||
* \param addr Address without flash offet (aligned to page0)
|
||||
* \param buf Pointer to buffer
|
||||
* \param count Number of bytes to write
|
||||
*
|
||||
* Note: this function is not limited to single page and nor it requires
|
||||
* the address be aligned inside the page boundaries.
|
||||
*
|
||||
* The following errors are reported (errno is not set!)
|
||||
* - EINVAL: if count is not aligned with the flash boundaries (i.e.
|
||||
* some MCU's require per half-word or even word access)
|
||||
* - EFAULT: On invalid address
|
||||
* - EIO: On unsuccessful write
|
||||
* - EROFS: On access to write protected area
|
||||
* - EACCES: Insufficient permissions (read/write protected)
|
||||
* - EPERM: If operation is not permitted due to some other constraints
|
||||
* (i.e. some internal block is not running etc.)
|
||||
*/
|
||||
|
||||
int up_progmem_write(uint32_t addr, const void *buf, size_t count);
|
||||
|
||||
/* \todo: Define the following functions and their options:
|
||||
* - up_progmem_protect()
|
||||
* - up_progmem_unprotect()
|
||||
*/
|
||||
|
||||
#undef EXTERN
|
||||
#if defined(__cplusplus)
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __INCLUDE_NUTTX_PROGMEM_H */
|
||||
|
|
@ -49,7 +49,7 @@
|
|||
|
||||
#include "os_internal.h"
|
||||
|
||||
#ifdef CONFIG_SCHED_ATEXiT
|
||||
#ifdef CONFIG_SCHED_ATEXIT
|
||||
|
||||
/************************************************************************
|
||||
* Definitions
|
||||
|
|
|
|||
|
|
@ -89,7 +89,7 @@ uint32_t clock_systimer(void)
|
|||
|
||||
if (g_rtc_enabled)
|
||||
{
|
||||
return up_rtc_getclock();
|
||||
// return up_rtc_getclock();
|
||||
}
|
||||
#endif
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue