diff options
| author | patacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679> | 2009-05-12 22:15:49 +0000 |
|---|---|---|
| committer | patacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679> | 2009-05-12 22:15:49 +0000 |
| commit | 0b74d638046b6b736f7cf86675c38d84908f87c7 (patch) | |
| tree | 40f400e9c2a21a75c596cb2c0e1d05e8e058eff8 /nuttx/arch/arm/src/lm3s/chip.h | |
| parent | 8320444101b3c5add0466ccc2f38d459fbf5a27f (diff) | |
Flesh out LM3S9618 interrupt control logic
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@1774 7fd9a85b-ad96-42d3-883c-3090e2eb8679
Diffstat (limited to 'nuttx/arch/arm/src/lm3s/chip.h')
| -rw-r--r-- | nuttx/arch/arm/src/lm3s/chip.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/nuttx/arch/arm/src/lm3s/chip.h b/nuttx/arch/arm/src/lm3s/chip.h index a5175a49fc..f6ff0c16a1 100644 --- a/nuttx/arch/arm/src/lm3s/chip.h +++ b/nuttx/arch/arm/src/lm3s/chip.h @@ -53,6 +53,16 @@ * Definitions ************************************************************************************/ +/* The LM3S6918 only supports 8 priority levels. The hardware priority mechanism + * will only look at the upper N bits of the 8-bit priority level (where N is 3 for + * the Stellaris family), so any prioritization must be performed in those bits. + * The default priority level is set to the middle value + */ + +#define NVIC_SYSH_PRIORITY_MIN 0x00 +#define NVIC_SYSH_PRIORITY_DEFAULT 0x80 +#define NVIC_SYSH_PRIORITY_MAX 0xe0 + /************************************************************************************ * Public Types ************************************************************************************/ |