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https://github.com/PX4/PX4-Autopilot.git
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Add logic to support the FSMC SRAM in the NuttX heap
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4433 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo
@@ -2514,3 +2514,5 @@
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* Makefile: Use the more common .hex extension for Intel hex files instead of
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more precise .ihx extension. This change has ripple effects to many build-
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related scripts and programs and could cause some short-term problems.
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* configs/stm3240g-eval/, arch/arm/src/stm32/up_allocateheap.c: Add support
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for the 16-mbit SRAM on-board the STM3240G-EVAL board.
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@@ -54,35 +54,208 @@
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/****************************************************************************
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* Private Definitions
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****************************************************************************/
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/* Internal SRAM is available in all members of the STM32 family. The
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* following definitions must be provided to specify the size and
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* location of internal(system) SRAM:
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*
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* CONFIG_DRAM_END : End address (+1) of SRAM (F1 family only, the
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* : F4 family uses the a priori end of SRAM)
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*
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* The F4 family also contains internal TCM SRAM. This SRAM is different
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* because it cannot be used for DMA. So if DMA needed, then the following
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* should be defined to exclude TCM SRAM from the heap:
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*
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* CONFIG_STM32_TCMEXCLUDE : Exclude TCM SRAM from the HEAP
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*
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* In addition to internal SRAM, SRAM may also be available through the FSMC.
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* In order to use FSMC SRAM, the following additional things need to be
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* present in the NuttX configuration file:
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*
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* CONFIG_STM32_FSMC=y : Enables the FSMC
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* CONFIG_STM32_FSMC_SRAM=y : Indicates that SRAM is available via the
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* FSMC (as opposed to an LCD or FLASH).
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* CONFIG_HEAP2_BASE : The base address of the SRAM in the FSMC
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* address space
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* CONFIG_HEAP2_END : The end (+1) of the SRAM in the FSMC
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* address space
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* CONFIG_MM_REGIONS : Must be set to a large enough value to
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* include the FSMC SRAM (as determined by the rules provided below)
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*/
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/* For the STM312F10xxx family, all SRAM is in a contiguous block starting
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* at g_heapbase and extending through CONFIG_DRAM_END (my apologies for
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* the bad naming).
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#ifndef CONFIG_STM32_FSMC
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# undef CONFIG_STM32_FSMC_SRAM
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#endif
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/* For the STM312F10xxx family, all internal SRAM is in one contiguous block
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* starting at g_heapbase and extending through CONFIG_DRAM_END (my apologies for
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* the bad naming). In addition, external FSMC SRAM may be available.
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*/
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#if defined(CONFIG_STM32_STM32F10XX)
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/* Set the end of system SRAM */
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# define SRAM1_END CONFIG_DRAM_END
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/* Check if external FSMC SRAM is provided */
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# if CONFIG_STM32_FSMC_SRAM
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# if CONFIG_MM_REGIONS < 2
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# warning "FSMC SRAM not included in the heap"
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# undef CONFIG_STM32_FSMC_SRAM
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# elif CONFIG_MM_REGIONS > 2
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# error "CONFIG_MM_REGIONS > 2 but I don't know what any of the region(s) are"
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# undef CONFIG_MM_REGIONS
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# define CONFIG_MM_REGIONS 2
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# endif
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# elif CONFIG_MM_REGIONS > 1
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# error "CONFIG_MM_REGIONS > 1 but I don't know what any of the region(s) are"
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# endif
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/* The STM32 F1 has not TCM SRAM */
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# undef CONFIG_STM32_TCMEXCLUDE
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# define CONFIG_STM32_TCMEXCLUDE 1
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/* All members of the STM32F40xxx family have 192Kb in three banks:
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*
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* 1) 112Kb of SRAM beginning at address 0x2000:0000
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* 2) 16Kb of SRAM beginning at address 0x2001:c000
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* 1) 112Kb of System SRAM beginning at address 0x2000:0000
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* 2) 16Kb of System SRAM beginning at address 0x2001:c000
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* 3) 64Kb of TCM SRAM beginning at address 0x1000:0000
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*
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* As determined by ld.script, g_heapbase lies in the 112Kb memory
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* region and that extends to 0x2001:0000. But the first and second memory
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* regions are contiguous and treated as one in this logic that extends to
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* 0x2002:0000.
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*
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* As a complication, it appears that TCM SRAM cannot be used for DMA. So, if
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* STM32 DMA is enabled, TCM SRAM should probably be excluded from the heap.
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*
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* In addition, external FSMC SRAM may be available.
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*/
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#elif defined(CONFIG_STM32_STM32F40XX)
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/* Set the end of system SRAM */
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# define SRAM1_END 0x20020000
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/* Set the range of TCM SRAM as well (although we may not use it) */
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# define SRAM2_START 0x10000000
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# define SRAM2_END 0x10010000
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/* There are 4 possible SRAM configurations:
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*
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* Configuration 1. System SRAM (only)
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* CONFIG_MM_REGIONS == 1
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* CONFIG_STM32_FSMC_SRAM NOT defined
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* CONFIG_STM32_TCMEXCLUDE defined
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* Configuration 2. System SRAM and TCM SRAM
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* CONFIG_MM_REGIONS == 2
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* CONFIG_STM32_FSMC_SRAM NOT defined
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* CONFIG_STM32_TCMEXCLUDE NOT defined
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* Configuration 3. System SRAM and FSMC SRAM
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* CONFIG_MM_REGIONS == 2
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* CONFIG_STM32_FSMC_SRAM defined
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* CONFIG_STM32_TCMEXCLUDE defined
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* Configuration 4. System SRAM, TCM SRAM, and FSMC SRAM
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* CONFIG_MM_REGIONS == 3
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* CONFIG_STM32_FSMC_SRAM defined
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* CONFIG_STM32_TCMEXCLUDE NOT defined
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*
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* Let's make sure that all definitions are consitent before doing
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* anything else
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*/
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# if defined(CONFIG_STM32_FSMC_SRAM)
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/* Configuration 3 or 4. External SRAM is available. CONFIG_MM_REGIONS
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* should be at least 2.
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*/
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# if CONFIG_MM_REGIONS < 2
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/* Only one memory region. Force Configuration 1 */
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# warning "FSMC SRAM (and TCM SRAM) excluded from the heap"
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# undef CONFIG_STM32_FSMC_SRAM
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# undef CONFIG_STM32_TCMEXCLUDE
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# define CONFIG_STM32_TCMEXCLUDE 1
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/* CONFIG_MM_REGIONS may be 3 if TCM SRAM is included in the head */
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# elif CONFIG_MM_REGIONS > 2
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/* More than two memory regions. This is okay if TCM SRAM is not
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* disabled.
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*/
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# if defined(CONFIG_STM32_TCMEXCLUDE)
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/* Configuration 3: CONFIG_MM_REGIONS should have been 2 */
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# error "CONFIG_MM_REGIONS > 2 but I don't know what any of the region(s) are"
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# undef CONFIG_MM_REGIONS
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# define CONFIG_MM_REGIONS 2
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# else
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/* Configuration 4: DMA should be disabled and CONFIG_MM_REGIONS
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* should be 3.
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*/
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# ifdef (CONFIG_STM32_DMA)
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# warning "TCM SRAM is included in the heap AND DMA is enabled"
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# endif
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# if CONFIG_MM_REGIONS != 3
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# error "CONFIG_MM_REGIONS > 3 but I don't know what any of the region(s) are"
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# undef CONFIG_MM_REGIONS
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# define CONFIG_MM_REGIONS 3
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# endif
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# endif
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/* CONFIG_MM_REGIONS is exactly 2. We cannot support both TCM SRAM and
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* FSMC SRAM.
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*/
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# elif !defined(CONFIG_STM32_TCMEXCLUDE)
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# error "CONFIG_MM_REGIONS == 2, cannot support both TCM SRAM and FSMC SRAM"
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# undef CONFIG_STM32_TCMEXCLUDE
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# define CONFIG_STM32_TCMEXCLUDE 1
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# endif
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# elif !defined(CONFIG_STM32_TCMEXCLUDE)
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/* Configuration 2: FSMC SRAM is not used, but TCM SRAM is requested. DMA
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* should be disabled and CONFIG_MM_REGIONS should be 2.
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*/
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# ifdef (CONFIG_STM32_DMA)
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# warning "TCM SRAM is included in the heap AND DMA is enabled"
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# endif
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# if CONFIG_MM_REGIONS < 2
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# error "TCM SRAM excluded from the heap because CONFIG_MM_REGIONS < 2"
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# undef CONFIG_STM32_TCMEXCLUDE
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# define CONFIG_STM32_TCMEXCLUDE 1
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# elif CONFIG_MM_REGIONS > 2
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# error "CONFIG_MM_REGIONS > 2 but I don't know what any of the region(s) are"
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# undef CONFIG_MM_REGIONS
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# define CONFIG_MM_REGIONS 2
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# endif
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# endif
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#else
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# error "Unsupported STM32 chip"
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#endif
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/* If FSMC SRAM is going to be used as heap, then verify that the starting
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* address and size of the external SRAM region has been provided in the
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* configuration.
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*/
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#ifdef CONFIG_STM32_FSMC_SRAM
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# if !defined(CONFIG_HEAP2_BASE) || !defined(CONFIG_HEAP2_END)
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# error "CONFIG_HEAP2_BASE and CONFIG_HEAP2_END must be provided"
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# undef CONFIG_STM32_FSMC_SRAM
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# endif
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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@@ -123,41 +296,18 @@ void up_allocate_heap(FAR void **heap_start, size_t *heap_size)
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****************************************************************************/
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#if CONFIG_MM_REGIONS > 1
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# if defined(CONFIG_STM32_STM32F40XX)
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# if defined(CONFIG_HEAP2_BASE) && defined(CONFIG_HEAP2_END)
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# if CONFIG_MM_REGIONS > 3
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# error "CONFIG_MM_REGIONS > 3 but I don't know what all of the regions are"
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# endif
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# elif CONFIG_MM_REGIONS > 2
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# error "CONFIG_MM_REGIONS > 2 but I don't know what all of the regions are"
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# endif
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void up_addregion(void)
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{
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/* Add the STM32F40xxx TCM SRAM heap region. */
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#ifndef CONFIG_STM32_TCMEXCLUDE
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mm_addregion((FAR void*)SRAM2_START, SRAM2_END-SRAM2_START);
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#endif
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/* Add the user specified heap region. */
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# if CONFIG_MM_REGIONS > 2 && defined(CONFIG_HEAP2_BASE) && defined(CONFIG_HEAP2_END)
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#ifdef CONFIG_STM32_FSMC_SRAM
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mm_addregion((FAR void*)CONFIG_HEAP2_BASE, CONFIG_HEAP2_END - CONFIG_HEAP2_BASE);
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# endif
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}
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# elif defined(CONFIG_HEAP2_BASE) && defined(CONFIG_HEAP2_END)
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# if CONFIG_MM_REGIONS > 2
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# error "CONFIG_MM_REGIONS > 2 but I don't know what all of the regions are"
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# endif
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void up_addregion(void)
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{
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/* Add the user specified heap region. */
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mm_addregion((FAR void*)CONFIG_HEAP2_BASE, CONFIG_HEAP2_END - CONFIG_HEAP2_BASE);
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}
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# else
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# error "CONFIG_MM_REGIONS > 1 but I don't know what any of the region(s) are"
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# endif
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#endif
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@@ -122,6 +122,16 @@
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#define CONFIG_STM32_I2CTIMEOTICKS \
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(SEC2TICK(CONFIG_STM32_I2CTIMEOSEC) + MSEC2TICK(CONFIG_STM32_I2CTIMEOMS))
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/* On the STM32F103ZE, there is an internal conflict between I2C1 and FSMC. In that
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* case, it is necessary to disable FSMC before each I2C1 access and re-enable FSMC
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* when the I2C access completes.
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*/
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#undef I2C1_FSMC_CONFLICT
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#if defined(CONFIG_STM32_STM32F10XX) && defined(CONFIG_STM32_FSMC) && defined(CONFIG_STM32_I2C1)
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# define I2C1_FSMC_CONFLICT
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#endif
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/* Debug ****************************************************************************/
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/* CONFIG_DEBUG_I2C + CONFIG_DEBUG enables general I2C debug output. */
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@@ -263,7 +273,7 @@ static inline void stm32_i2c_sendstart(FAR struct stm32_i2c_priv_s *priv);
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static inline void stm32_i2c_clrstart(FAR struct stm32_i2c_priv_s *priv);
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static inline void stm32_i2c_sendstop(FAR struct stm32_i2c_priv_s *priv);
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static inline uint32_t stm32_i2c_getstatus(FAR struct stm32_i2c_priv_s *priv);
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#if defined(CONFIG_STM32_FSMC) && defined (CONFIG_STM32_I2C1)
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#ifdef I2C1_FSMC_CONFLICT
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static inline uint32_t stm32_i2c_disablefsmc(FAR struct stm32_i2c_priv_s *priv);
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static inline void stm32_i2c_enablefsmc(uint32_t ahbenr);
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#endif
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@@ -907,9 +917,12 @@ static inline uint32_t stm32_i2c_getstatus(FAR struct stm32_i2c_priv_s *priv)
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* FSMC must be disable while accessing I2C1 because it uses a common resource
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* (LBAR)
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*
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* NOTE: This is an issue with the STM32F103ZE, but may not be an issue with other
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* STM32s. You may need to experiment
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*
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************************************************************************************/
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#if defined(CONFIG_STM32_FSMC) && defined (CONFIG_STM32_I2C1)
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#ifdef I2C1_FSMC_CONFLICT
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static inline uint32_t stm32_i2c_disablefsmc(FAR struct stm32_i2c_priv_s *priv)
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{
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uint32_t ret = 0;
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@@ -954,7 +967,7 @@ static inline void stm32_i2c_enablefsmc(uint32_t ahbenr)
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#else
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# define stm32_i2c_disablefsmc(priv) (0)
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# define stm32_i2c_enablefsmc(ahbenr)
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#endif
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#endif /* I2C1_FSMC_CONFLICT */
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/************************************************************************************
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* Name: stm32_i2c_isr
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@@ -1478,7 +1491,7 @@ static int stm32_i2c_process(FAR struct i2c_dev_s *dev, FAR struct i2c_msg_s *ms
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* will not complete normally if the FSMC is enabled.
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*/
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#if !defined(CONFIG_STM32_FSMC) || !defined (CONFIG_STM32_I2C1)
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#ifndef I2C1_FSMC_CONFLICT
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stm32_i2c_sem_waitstop(priv);
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#endif
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@@ -1619,7 +1632,7 @@ static int stm32_i2c_process(FAR struct i2c_dev_s *dev, FAR struct i2c_msg_s *ms
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* will not complete normally if the FSMC is enabled.
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*/
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#if defined(CONFIG_STM32_FSMC) && defined (CONFIG_STM32_I2C1)
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#ifdef I2C1_FSMC_CONFLICT
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stm32_i2c_sem_waitstop(priv);
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#endif
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@@ -17,6 +17,7 @@ Contents
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- PWM
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- CAN
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- FPU
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- FSMC SRAM
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- STM3240G-EVAL-specific Configuration Options
|
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- Configurations
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@@ -108,18 +109,7 @@ GNU Toolchain Options
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and g++.exe in the same bin/ file as their ARM binaries. If the Atollic bin/ path
|
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appears in your PATH variable before /usr/bin, then you will get the wrong gcc
|
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when you try to build host executables. This will cause to strange, uninterpretable
|
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errors build some host binaries in tools/ when you first make. Here is my
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workaround kludge.
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1. Edit the setenv.sh to put the Atollic toolchain at the beginning of the PATH
|
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2. Source the setenv.sh file: . ./setenv.sh. A side effect of this is that it
|
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will set an environment variable called PATH_ORIG.
|
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3. Then go back to the original patch: export PATH=$PATH_ORIG
|
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4. Then make. The make will build all of the host executable but will fail
|
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when it gets to the first ARM binary.
|
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5. Then source setenv.sh again: . ./setenv.sh. That will correct the PATH
|
||||
again. When you do make again, the host executables are already made and
|
||||
now the correct PATH is in place for the ARM build.
|
||||
errors build some host binaries in tools/ when you first make.
|
||||
|
||||
Also, the Atollic toolchains are the only toolchains that have built-in support for
|
||||
the FPU in these configurations. If you plan to use the Cortex-M4 FPU, you will
|
||||
@@ -440,6 +430,73 @@ See the section above on Toolchains, NOTE 2, for explanations for some of
|
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the configuration settings. Some of the usual settings are just not supported
|
||||
by the "Lite" version of the Atollic toolchain.
|
||||
|
||||
FSMC SRAM
|
||||
=========
|
||||
|
||||
On-board SRAM
|
||||
-------------
|
||||
|
||||
A 16 Mbit SRAM is connected to the STM32F407IGH6 FSMC bus which shares the same
|
||||
I/Os with the CAN1 bus. Jumper settings:
|
||||
|
||||
JP1: Connect PE4 to SRAM as A20
|
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JP2: onnect PE3 to SRAM as A19
|
||||
|
||||
JP3 and JP10 must not be fitted for SRAM and LCD application. JP3 and JP10
|
||||
select CAN1 or CAN2 if fitted; neither if not fitted.
|
||||
|
||||
The on-board SRAM can be configured by setting
|
||||
|
||||
CONFIG_STM32_FSMC=y
|
||||
CONFIG_STM32_FSMC_SRAM=y
|
||||
CONFIG_HEAP2_BASE=0x64000000
|
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CONFIG_HEAP2_END=(0x64000000+(2*1024*1024))
|
||||
CONFIG_MM_REGIONS=2 (or =3, see below)
|
||||
|
||||
Configuration Options
|
||||
---------------------
|
||||
Internal SRAM is available in all members of the STM32 family. The F4 family
|
||||
also contains internal TCM SRAM. This SRAM is different because it cannot
|
||||
be used for DMA. So if DMA needed, then the following should be defined
|
||||
to exclude TCM SRAM from the heap:
|
||||
|
||||
CONFIG_STM32_TCMEXCLUDE : Exclude TCM SRAM from the HEAP
|
||||
|
||||
In addition to internal SRAM, SRAM may also be available through the FSMC.
|
||||
In order to use FSMC SRAM, the following additional things need to be
|
||||
present in the NuttX configuration file:
|
||||
|
||||
CONFIG_STM32_FSMC=y : Enables the FSMC
|
||||
CONFIG_STM32_FSMC_SRAM=y : Indicates that SRAM is available via the
|
||||
FSMC (as opposed to an LCD or FLASH).
|
||||
CONFIG_HEAP2_BASE : The base address of the SRAM in the FSMC
|
||||
address space
|
||||
CONFIG_HEAP2_END : The end (+1) of the SRAM in the FSMC
|
||||
address space
|
||||
CONFIG_MM_REGIONS : Must be set to a large enough value to
|
||||
include the FSMC SRAM
|
||||
|
||||
SRAM Configurations
|
||||
-------------------
|
||||
There are 4 possible SRAM configurations:
|
||||
|
||||
Configuration 1. System SRAM (only)
|
||||
CONFIG_MM_REGIONS == 1
|
||||
CONFIG_STM32_FSMC_SRAM NOT defined
|
||||
CONFIG_STM32_TCMEXCLUDE defined
|
||||
Configuration 2. System SRAM and TCM SRAM
|
||||
CONFIG_MM_REGIONS == 2
|
||||
CONFIG_STM32_FSMC_SRAM NOT defined
|
||||
CONFIG_STM32_TCMEXCLUDE NOT defined
|
||||
Configuration 3. System SRAM and FSMC SRAM
|
||||
CONFIG_MM_REGIONS == 2
|
||||
CONFIG_STM32_FSMC_SRAM defined
|
||||
CONFIG_STM32_TCMEXCLUDE defined
|
||||
Configuration 4. System SRAM, TCM SRAM, and FSMC SRAM
|
||||
CONFIG_MM_REGIONS == 3
|
||||
CONFIG_STM32_FSMC_SRAM defined
|
||||
CONFIG_STM32_TCMEXCLUDE NOT defined
|
||||
|
||||
STM3240G-EVAL-specific Configuration Options
|
||||
============================================
|
||||
|
||||
@@ -497,6 +554,19 @@ STM3240G-EVAL-specific Configuration Options
|
||||
|
||||
CONFIG_DRAM_END=(CONFIG_DRAM_START+CONFIG_DRAM_SIZE)
|
||||
|
||||
CONFIG_STM32_TCMEXCLUDE - Exclude TCM SRAM from the HEAP
|
||||
|
||||
In addition to internal SRAM, SRAM may also be available through the FSMC.
|
||||
In order to use FSMC SRAM, the following additional things need to be
|
||||
present in the NuttX configuration file:
|
||||
|
||||
CONFIG_STM32_FSMC_SRAM - Indicates that SRAM is available via the
|
||||
FSMC (as opposed to an LCD or FLASH).
|
||||
|
||||
CONFIG_HEAP2_BASE - The base address of the SRAM in the FSMC address space
|
||||
|
||||
CONFIG_HEAP2_END - The end (+1) of the SRAM in the FSMC address space
|
||||
|
||||
CONFIG_ARCH_IRQPRIO - The STM3240xxx supports interrupt prioritization
|
||||
|
||||
CONFIG_ARCH_IRQPRIO=y
|
||||
|
||||
@@ -120,6 +120,29 @@ CONFIG_STM32_JTAG_FULL_ENABLE=y
|
||||
CONFIG_STM32_JTAG_NOJNTRST_ENABLE=n
|
||||
CONFIG_STM32_JTAG_SW_ENABLE=n
|
||||
|
||||
#
|
||||
# On-chip TCM SRAM configuration
|
||||
#
|
||||
# CONFIG_STM32_TCMEXCLUDE - Exclude TCM SRAM from the HEAP. You would need
|
||||
# to do this if DMA is enabled to prevent non-DMA-able TCM memory from
|
||||
# being a part of the stack.
|
||||
#
|
||||
|
||||
#
|
||||
# On-board FSMC SRAM configuration
|
||||
#
|
||||
# CONFIG_STM32_FSMC - Required. See below
|
||||
# CONFIG_MM_REGIONS - Required. Must be 2 or 3 (see above)
|
||||
#
|
||||
# CONFIG_STM32_FSMC_SRAM=y - Indicates that SRAM is available via the
|
||||
# FSMC (as opposed to an LCD or FLASH).
|
||||
# CONFIG_HEAP2_BASE - The base address of the SRAM in the FSMC address space
|
||||
# CONFIG_HEAP2_END - The end (+1) of the SRAM in the FSMC address space
|
||||
#
|
||||
CONFIG_STM32_FSMC_SRAM=y
|
||||
CONFIG_HEAP2_BASE=0x64000000
|
||||
CONFIG_HEAP2_END=(0x64000000+(2*1024*1024))
|
||||
|
||||
#
|
||||
# Individual subsystems can be enabled:
|
||||
#
|
||||
|
||||
@@ -59,9 +59,11 @@ export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++
|
||||
|
||||
# These are the Cygwin paths to the locations where I installed the Atollic
|
||||
# toolchain under windows. You will also have to edit this if you install
|
||||
# the CodeSourcery toolchain in any other location
|
||||
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
|
||||
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
|
||||
# the Atollic toolchain in any other location. /usr/bin is added before
|
||||
# the Atollic bin path because there is are binaries named gcc.exe and g++.exe
|
||||
# at those locations as well.
|
||||
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
|
||||
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
|
||||
|
||||
# This the Cygwin path to the location where I build the buildroot
|
||||
# toolchain.
|
||||
|
||||
@@ -257,6 +257,28 @@
|
||||
#define BUTTON_TAMPER_BIT (1 << BUTTON_TAMPER)
|
||||
#define BUTTON_USER_BIT (1 << BUTTON_USER)
|
||||
|
||||
/* SRAM definitions *****************************************************************/
|
||||
/* The 16 Mbit SRAM is connected to the STM32F407IGH6 FSMC bus which shares the same
|
||||
* I/Os with the CAN1 bus. Jumper settings:
|
||||
*
|
||||
* JP1: Connect PE4 to SRAM as A20
|
||||
* JP2: onnect PE3 to SRAM as A19
|
||||
*
|
||||
* JP3 and JP10 must not be fitted for SRAM and LCD application. JP3 and JP10
|
||||
* select CAN1 or CAN2 if fitted; neither if not fitted.
|
||||
*/
|
||||
|
||||
#if defined(CONFIG_STM32_FSMC) && defined(CONFIG_STM32_FSMC_SRAM)
|
||||
# if defined(CONFIG_STM32_CAN1) || defined(CONFIG_STM32_CAN2)
|
||||
# error "The STM3240G-EVAL cannot support both CAN and FSMC SRAM"
|
||||
# endif
|
||||
#endif
|
||||
|
||||
/* This is the Bank1 SRAM2 address: */
|
||||
|
||||
#define BOARD_SRAM_BASE 0x64000000
|
||||
#define BOARD_SRAM_SIZE (2*1024*1024)
|
||||
|
||||
/* Alternate function pin selections ************************************************/
|
||||
|
||||
/* UART3:
|
||||
|
||||
@@ -120,6 +120,29 @@ CONFIG_STM32_JTAG_FULL_ENABLE=y
|
||||
CONFIG_STM32_JTAG_NOJNTRST_ENABLE=n
|
||||
CONFIG_STM32_JTAG_SW_ENABLE=n
|
||||
|
||||
#
|
||||
# On-chip TCM SRAM configuration
|
||||
#
|
||||
# CONFIG_STM32_TCMEXCLUDE - Exclude TCM SRAM from the HEAP. You would need
|
||||
# to do this if DMA is enabled to prevent non-DMA-able TCM memory from
|
||||
# being a part of the stack.
|
||||
#
|
||||
|
||||
#
|
||||
# On-board FSMC SRAM configuration
|
||||
#
|
||||
# CONFIG_STM32_FSMC - Required. See below
|
||||
# CONFIG_MM_REGIONS - Required. Must be 2 or 3 (see above)
|
||||
#
|
||||
# CONFIG_STM32_FSMC_SRAM=y - Indicates that SRAM is available via the
|
||||
# FSMC (as opposed to an LCD or FLASH).
|
||||
# CONFIG_HEAP2_BASE - The base address of the SRAM in the FSMC address space
|
||||
# CONFIG_HEAP2_END - The end (+1) of the SRAM in the FSMC address space
|
||||
#
|
||||
CONFIG_STM32_FSMC_SRAM=y
|
||||
CONFIG_HEAP2_BASE=0x64000000
|
||||
CONFIG_HEAP2_END=(0x64000000+(2*1024*1024))
|
||||
|
||||
#
|
||||
# Individual subsystems can be enabled:
|
||||
#
|
||||
|
||||
@@ -59,9 +59,11 @@ export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++
|
||||
|
||||
# These are the Cygwin paths to the locations where I installed the Atollic
|
||||
# toolchain under windows. You will also have to edit this if you install
|
||||
# the CodeSourcery toolchain in any other location
|
||||
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
|
||||
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
|
||||
# the Atollic toolchain in any other location. /usr/bin is added before
|
||||
# the Atollic bin path because there is are binaries named gcc.exe and g++.exe
|
||||
# at those locations as well.
|
||||
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
|
||||
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
|
||||
|
||||
# This the Cygwin path to the location where I build the buildroot
|
||||
# toolchain.
|
||||
|
||||
@@ -120,6 +120,29 @@ CONFIG_STM32_JTAG_FULL_ENABLE=y
|
||||
CONFIG_STM32_JTAG_NOJNTRST_ENABLE=n
|
||||
CONFIG_STM32_JTAG_SW_ENABLE=n
|
||||
|
||||
#
|
||||
# On-chip TCM SRAM configuration
|
||||
#
|
||||
# CONFIG_STM32_TCMEXCLUDE - Exclude TCM SRAM from the HEAP. You would need
|
||||
# to do this if DMA is enabled to prevent non-DMA-able TCM memory from
|
||||
# being a part of the stack.
|
||||
#
|
||||
|
||||
#
|
||||
# On-board FSMC SRAM configuration
|
||||
#
|
||||
# CONFIG_STM32_FSMC - Required. See below
|
||||
# CONFIG_MM_REGIONS - Required. Must be 2 or 3 (see above)
|
||||
#
|
||||
# CONFIG_STM32_FSMC_SRAM=y - Indicates that SRAM is available via the
|
||||
# FSMC (as opposed to an LCD or FLASH).
|
||||
# CONFIG_HEAP2_BASE - The base address of the SRAM in the FSMC address space
|
||||
# CONFIG_HEAP2_END - The end (+1) of the SRAM in the FSMC address space
|
||||
#
|
||||
CONFIG_STM32_FSMC_SRAM=y
|
||||
CONFIG_HEAP2_BASE=0x64000000
|
||||
CONFIG_HEAP2_END=(0x64000000+(2*1024*1024))
|
||||
|
||||
#
|
||||
# Individual subsystems can be enabled:
|
||||
#
|
||||
|
||||
@@ -59,9 +59,11 @@ export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++
|
||||
|
||||
# These are the Cygwin paths to the locations where I installed the Atollic
|
||||
# toolchain under windows. You will also have to edit this if you install
|
||||
# the CodeSourcery toolchain in any other location
|
||||
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
|
||||
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
|
||||
# the Atollic toolchain in any other location. /usr/bin is added before
|
||||
# the Atollic bin path because there is are binaries named gcc.exe and g++.exe
|
||||
# at those locations as well.
|
||||
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
|
||||
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
|
||||
|
||||
# This the Cygwin path to the location where I build the buildroot
|
||||
# toolchain.
|
||||
|
||||
@@ -120,6 +120,30 @@ CONFIG_STM32_JTAG_FULL_ENABLE=y
|
||||
CONFIG_STM32_JTAG_NOJNTRST_ENABLE=n
|
||||
CONFIG_STM32_JTAG_SW_ENABLE=n
|
||||
|
||||
#
|
||||
# On-chip TCM SRAM configuration
|
||||
#
|
||||
# CONFIG_STM32_TCMEXCLUDE - Exclude TCM SRAM from the HEAP. You would need
|
||||
# to do this if DMA is enabled to prevent non-DMA-able TCM memory from
|
||||
# being a part of the stack.
|
||||
#
|
||||
CONFIG_STM32_TCMEXCLUDE=y
|
||||
|
||||
#
|
||||
# On-board FSMC SRAM configuration
|
||||
#
|
||||
# CONFIG_STM32_FSMC - Required. See below
|
||||
# CONFIG_MM_REGIONS - Required. Must be 2 or 3 (see above)
|
||||
#
|
||||
# CONFIG_STM32_FSMC_SRAM=y - Indicates that SRAM is available via the
|
||||
# FSMC (as opposed to an LCD or FLASH).
|
||||
# CONFIG_HEAP2_BASE - The base address of the SRAM in the FSMC address space
|
||||
# CONFIG_HEAP2_END - The end (+1) of the SRAM in the FSMC address space
|
||||
#
|
||||
CONFIG_STM32_FSMC_SRAM=y
|
||||
CONFIG_HEAP2_BASE=0x64000000
|
||||
CONFIG_HEAP2_END=(0x64000000+(2*1024*1024))
|
||||
|
||||
#
|
||||
# Individual subsystems can be enabled:
|
||||
#
|
||||
|
||||
@@ -59,9 +59,11 @@ export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++
|
||||
|
||||
# These are the Cygwin paths to the locations where I installed the Atollic
|
||||
# toolchain under windows. You will also have to edit this if you install
|
||||
# the CodeSourcery toolchain in any other location
|
||||
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
|
||||
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
|
||||
# the Atollic toolchain in any other location. /usr/bin is added before
|
||||
# the Atollic bin path because there is are binaries named gcc.exe and g++.exe
|
||||
# at those locations as well.
|
||||
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
|
||||
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
|
||||
|
||||
# This the Cygwin path to the location where I build the buildroot
|
||||
# toolchain.
|
||||
|
||||
@@ -120,6 +120,29 @@ CONFIG_STM32_JTAG_FULL_ENABLE=y
|
||||
CONFIG_STM32_JTAG_NOJNTRST_ENABLE=n
|
||||
CONFIG_STM32_JTAG_SW_ENABLE=n
|
||||
|
||||
#
|
||||
# On-chip TCM SRAM configuration
|
||||
#
|
||||
# CONFIG_STM32_TCMEXCLUDE - Exclude TCM SRAM from the HEAP. You would need
|
||||
# to do this if DMA is enabled to prevent non-DMA-able TCM memory from
|
||||
# being a part of the stack.
|
||||
#
|
||||
|
||||
#
|
||||
# On-board FSMC SRAM configuration
|
||||
#
|
||||
# CONFIG_STM32_FSMC - Required. See below
|
||||
# CONFIG_MM_REGIONS - Required. Must be 2 or 3 (see above)
|
||||
#
|
||||
# CONFIG_STM32_FSMC_SRAM=y - Indicates that SRAM is available via the
|
||||
# FSMC (as opposed to an LCD or FLASH).
|
||||
# CONFIG_HEAP2_BASE - The base address of the SRAM in the FSMC address space
|
||||
# CONFIG_HEAP2_END - The end (+1) of the SRAM in the FSMC address space
|
||||
#
|
||||
CONFIG_STM32_FSMC_SRAM=y
|
||||
CONFIG_HEAP2_BASE=0x64000000
|
||||
CONFIG_HEAP2_END=(0x64000000+(2*1024*1024))
|
||||
|
||||
#
|
||||
# Individual subsystems can be enabled:
|
||||
#
|
||||
|
||||
@@ -59,9 +59,11 @@ export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++
|
||||
|
||||
# These are the Cygwin paths to the locations where I installed the Atollic
|
||||
# toolchain under windows. You will also have to edit this if you install
|
||||
# the CodeSourcery toolchain in any other location
|
||||
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
|
||||
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
|
||||
# the Atollic toolchain in any other location. /usr/bin is added before
|
||||
# the Atollic bin path because there is are binaries named gcc.exe and g++.exe
|
||||
# at those locations as well.
|
||||
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
|
||||
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
|
||||
|
||||
# This the Cygwin path to the location where I build the buildroot
|
||||
# toolchain.
|
||||
|
||||
@@ -120,6 +120,29 @@ CONFIG_STM32_JTAG_FULL_ENABLE=y
|
||||
CONFIG_STM32_JTAG_NOJNTRST_ENABLE=n
|
||||
CONFIG_STM32_JTAG_SW_ENABLE=n
|
||||
|
||||
#
|
||||
# On-chip TCM SRAM configuration
|
||||
#
|
||||
# CONFIG_STM32_TCMEXCLUDE - Exclude TCM SRAM from the HEAP. You would need
|
||||
# to do this if DMA is enabled to prevent non-DMA-able TCM memory from
|
||||
# being a part of the stack.
|
||||
#
|
||||
|
||||
#
|
||||
# On-board FSMC SRAM configuration
|
||||
#
|
||||
# CONFIG_STM32_FSMC - Required. See below
|
||||
# CONFIG_MM_REGIONS - Required. Must be 2 or 3 (see above)
|
||||
#
|
||||
# CONFIG_STM32_FSMC_SRAM=y - Indicates that SRAM is available via the
|
||||
# FSMC (as opposed to an LCD or FLASH).
|
||||
# CONFIG_HEAP2_BASE - The base address of the SRAM in the FSMC address space
|
||||
# CONFIG_HEAP2_END - The end (+1) of the SRAM in the FSMC address space
|
||||
#
|
||||
CONFIG_STM32_FSMC_SRAM=y
|
||||
CONFIG_HEAP2_BASE=0x64000000
|
||||
CONFIG_HEAP2_END=(0x64000000+(2*1024*1024))
|
||||
|
||||
#
|
||||
# Individual subsystems can be enabled:
|
||||
#
|
||||
|
||||
@@ -59,9 +59,11 @@ export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++
|
||||
|
||||
# These are the Cygwin paths to the locations where I installed the Atollic
|
||||
# toolchain under windows. You will also have to edit this if you install
|
||||
# the CodeSourcery toolchain in any other location
|
||||
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
|
||||
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
|
||||
# the Atollic toolchain in any other location. /usr/bin is added before
|
||||
# the Atollic bin path because there is are binaries named gcc.exe and g++.exe
|
||||
# at those locations as well.
|
||||
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
|
||||
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
|
||||
|
||||
# This the Cygwin path to the location where I build the buildroot
|
||||
# toolchain.
|
||||
|
||||
@@ -16,6 +16,7 @@ Contents
|
||||
- UARTs
|
||||
- Timer Inputs/Outputs
|
||||
- FPU
|
||||
- FSMC SRAM
|
||||
- STM32F4Discovery-specific Configuration Options
|
||||
- Configurations
|
||||
|
||||
@@ -105,18 +106,7 @@ GNU Toolchain Options
|
||||
and g++.exe in the same bin/ file as their ARM binaries. If the Atollic bin/ path
|
||||
appears in your PATH variable before /usr/bin, then you will get the wrong gcc
|
||||
when you try to build host executables. This will cause to strange, uninterpretable
|
||||
errors build some host binaries in tools/ when you first make. Here is my
|
||||
workaround kludge.
|
||||
|
||||
1. Edit the setenv.sh to put the Atollic toolchain at the beginning of the PATH
|
||||
2. Source the setenv.sh file: . ./setenv.sh. A side effect of this is that it
|
||||
will set an environment variable called PATH_ORIG.
|
||||
3. Then go back to the original patch: export PATH=$PATH_ORIG
|
||||
4. Then make. The make will build all of the host executable but will fail
|
||||
when it gets to the first ARM binary.
|
||||
5. Then source setenv.sh again: . ./setenv.sh. That will correct the PATH
|
||||
again. When you do make again, the host executables are already made and
|
||||
now the correct PATH is in place for the ARM build.
|
||||
errors build some host binaries in tools/ when you first make.
|
||||
|
||||
Also, the Atollic toolchains are the only toolchains that have built-in support for
|
||||
the FPU in these configurations. If you plan to use the Cortex-M4 FPU, you will
|
||||
@@ -431,6 +421,58 @@ options as used with the Atollic toolchain in the Make.defs file:
|
||||
|
||||
ARCHCPUFLAGS = -mcpu=cortex-m4 -mthumb -march=armv7e-m -mfpu=fpv4-sp-d16 -mfloat-abi=hard
|
||||
|
||||
FSMC SRAM
|
||||
=========
|
||||
|
||||
On-board SRAM
|
||||
-------------
|
||||
The STM32F4Discovery has no on-board SRAM. The information here is only for
|
||||
reference in case you choose to add some.
|
||||
|
||||
Configuration Options
|
||||
---------------------
|
||||
Internal SRAM is available in all members of the STM32 family. The F4 family
|
||||
also contains internal TCM SRAM. This SRAM is different because it cannot
|
||||
be used for DMA. So if DMA needed, then the following should be defined
|
||||
to exclude TCM SRAM from the heap:
|
||||
|
||||
CONFIG_STM32_TCMEXCLUDE : Exclude TCM SRAM from the HEAP
|
||||
|
||||
In addition to internal SRAM, SRAM may also be available through the FSMC.
|
||||
In order to use FSMC SRAM, the following additional things need to be
|
||||
present in the NuttX configuration file:
|
||||
|
||||
CONFIG_STM32_FSMC=y : Enables the FSMC
|
||||
CONFIG_STM32_FSMC_SRAM=y : Indicates that SRAM is available via the
|
||||
FSMC (as opposed to an LCD or FLASH).
|
||||
CONFIG_HEAP2_BASE : The base address of the SRAM in the FSMC
|
||||
address space
|
||||
CONFIG_HEAP2_END : The end (+1) of the SRAM in the FSMC
|
||||
address space
|
||||
CONFIG_MM_REGIONS : Must be set to a large enough value to
|
||||
include the FSMC SRAM
|
||||
|
||||
SRAM Configurations
|
||||
-------------------
|
||||
There are 4 possible SRAM configurations:
|
||||
|
||||
Configuration 1. System SRAM (only)
|
||||
CONFIG_MM_REGIONS == 1
|
||||
CONFIG_STM32_FSMC_SRAM NOT defined
|
||||
CONFIG_STM32_TCMEXCLUDE defined
|
||||
Configuration 2. System SRAM and TCM SRAM
|
||||
CONFIG_MM_REGIONS == 2
|
||||
CONFIG_STM32_FSMC_SRAM NOT defined
|
||||
CONFIG_STM32_TCMEXCLUDE NOT defined
|
||||
Configuration 3. System SRAM and FSMC SRAM
|
||||
CONFIG_MM_REGIONS == 2
|
||||
CONFIG_STM32_FSMC_SRAM defined
|
||||
CONFIG_STM32_TCMEXCLUDE defined
|
||||
Configuration 4. System SRAM, TCM SRAM, and FSMC SRAM
|
||||
CONFIG_MM_REGIONS == 3
|
||||
CONFIG_STM32_FSMC_SRAM defined
|
||||
CONFIG_STM32_TCMEXCLUDE NOT defined
|
||||
|
||||
Configuration Changes
|
||||
---------------------
|
||||
|
||||
@@ -515,6 +557,19 @@ STM32F4Discovery-specific Configuration Options
|
||||
|
||||
CONFIG_DRAM_END=(CONFIG_DRAM_START+CONFIG_DRAM_SIZE)
|
||||
|
||||
CONFIG_STM32_TCMEXCLUDE - Exclude TCM SRAM from the HEAP
|
||||
|
||||
In addition to internal SRAM, SRAM may also be available through the FSMC.
|
||||
In order to use FSMC SRAM, the following additional things need to be
|
||||
present in the NuttX configuration file:
|
||||
|
||||
CONFIG_STM32_FSMC_SRAM - Indicates that SRAM is available via the
|
||||
FSMC (as opposed to an LCD or FLASH).
|
||||
|
||||
CONFIG_HEAP2_BASE - The base address of the SRAM in the FSMC address space
|
||||
|
||||
CONFIG_HEAP2_END - The end (+1) of the SRAM in the FSMC address space
|
||||
|
||||
CONFIG_ARCH_IRQPRIO - The STM3240xxx supports interrupt prioritization
|
||||
|
||||
CONFIG_ARCH_IRQPRIO=y
|
||||
|
||||
@@ -59,9 +59,11 @@ export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++
|
||||
|
||||
# These are the Cygwin paths to the locations where I installed the Atollic
|
||||
# toolchain under windows. You will also have to edit this if you install
|
||||
# the CodeSourcery toolchain in any other location
|
||||
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
|
||||
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
|
||||
# the Atollic toolchain in any other location. /usr/bin is added before
|
||||
# the Atollic bin path because there is are binaries named gcc.exe and g++.exe
|
||||
# at those locations as well.
|
||||
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
|
||||
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
|
||||
|
||||
# This the Cygwin path to the location where I build the buildroot
|
||||
# toolchain.
|
||||
|
||||
@@ -59,9 +59,11 @@ export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++
|
||||
|
||||
# These are the Cygwin paths to the locations where I installed the Atollic
|
||||
# toolchain under windows. You will also have to edit this if you install
|
||||
# the CodeSourcery toolchain in any other location
|
||||
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
|
||||
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
|
||||
# the Atollic toolchain in any other location. /usr/bin is added before
|
||||
# the Atollic bin path because there is are binaries named gcc.exe and g++.exe
|
||||
# at those locations as well.
|
||||
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
|
||||
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
|
||||
|
||||
# This the Cygwin path to the location where I build the buildroot
|
||||
# toolchain.
|
||||
|
||||
@@ -184,7 +184,7 @@ void uip_tcpinput(struct uip_driver_s *dev)
|
||||
conn->crefs = 1;
|
||||
if (uip_accept(dev, conn, tmp16) != OK)
|
||||
{
|
||||
/* No, then we have to give the connection back */
|
||||
/* No, then we have to give the connection back and drop the packet */
|
||||
|
||||
conn->crefs = 0;
|
||||
uip_tcpfree(conn);
|
||||
|
||||
Reference in New Issue
Block a user