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| author | Gregory Nutt <gnutt@nuttx.org> | 2013-05-19 11:54:56 -0600 |
|---|---|---|
| committer | Gregory Nutt <gnutt@nuttx.org> | 2013-05-19 11:54:56 -0600 |
| commit | 0fc2b6c2d86d4d043f2e69de03f6409c3e964cb4 (patch) | |
| tree | 388bf50c7a4c271866cf2cca1ed2336b934237f6 /nuttx/arch/arm/src/stm32/stm32_allocateheap.c | |
| parent | af086950f8567b3595cee4b3cc7852557464837d (diff) | |
| download | px4-nuttx-0fc2b6c2d86d4d043f2e69de03f6409c3e964cb4.tar.gz px4-nuttx-0fc2b6c2d86d4d043f2e69de03f6409c3e964cb4.tar.bz2 px4-nuttx-0fc2b6c2d86d4d043f2e69de03f6409c3e964cb4.zip | |
STM32L15X UART, DMA, and heap initialization support
Diffstat (limited to 'nuttx/arch/arm/src/stm32/stm32_allocateheap.c')
| -rw-r--r-- | nuttx/arch/arm/src/stm32/stm32_allocateheap.c | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/nuttx/arch/arm/src/stm32/stm32_allocateheap.c b/nuttx/arch/arm/src/stm32/stm32_allocateheap.c index 5eea5c53d..95f468898 100644 --- a/nuttx/arch/arm/src/stm32/stm32_allocateheap.c +++ b/nuttx/arch/arm/src/stm32/stm32_allocateheap.c @@ -92,12 +92,37 @@ # undef CONFIG_STM32_FSMC_SRAM #endif +/* The STM32L15xxx family has only internal SRAM. The heap is in one contiguous + * block starting at g_idle_topstack and extending through CONFIG_DRAM_END. + */ + +#if defined(CONFIG_STM32_STM32L15XX) + + /* Set the end of system SRAM */ + +# define SRAM1_END CONFIG_DRAM_END + + /* There is no FSMC (Other EnergyLite STM32's do have an FSMC, but not the STM32L15X */ + +# undef CONFIG_STM32_FSMC_SRAM + + /* The STM32L EnergyLite family has no CCM SRAM */ + +# undef CONFIG_STM32_CCMEXCLUDE +# define CONFIG_STM32_CCMEXCLUDE 1 + + /* Only one memory region can be support (internal SRAM) */ + +# if CONFIG_MM_REGIONS > 1 +# error "CONFIG_MM_REGIONS > 1. The STM32L15X has only one memory region." +# endif + /* For the STM312F10xxx family, all internal SRAM is in one contiguous block - * starting at g_idle_topstack and extending through CONFIG_DRAM_END (my apologies for - * the bad naming). In addition, external FSMC SRAM may be available. + * starting at g_idle_topstack and extending through CONFIG_DRAM_END (my apologies + * for the bad naming). In addition, external FSMC SRAM may be available. */ -#if defined(CONFIG_STM32_STM32F10XX) +#elif defined(CONFIG_STM32_STM32F10XX) /* Set the end of system SRAM */ |