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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-06-06 14:12:50 +0000 |
|---|---|---|
| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-06-06 14:12:50 +0000 |
| commit | 2a86d0f5169f0122a75dd22ee932bae2e6adfecb (patch) | |
| tree | 6a78f460659fc89dc3c02e0241b5fb2ae4cafe48 /nuttx/arch | |
| parent | 020685deda03ea52b37d2effd6738cb8130385f5 (diff) | |
| download | px4-nuttx-2a86d0f5169f0122a75dd22ee932bae2e6adfecb.tar.gz px4-nuttx-2a86d0f5169f0122a75dd22ee932bae2e6adfecb.tar.bz2 px4-nuttx-2a86d0f5169f0122a75dd22ee932bae2e6adfecb.zip | |
Add logic to avoid spurious interrupts
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1857 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch')
| -rw-r--r-- | nuttx/arch/arm/src/str71x/str71x_irq.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/nuttx/arch/arm/src/str71x/str71x_irq.c b/nuttx/arch/arm/src/str71x/str71x_irq.c index d3fcf57c9..6be5e945b 100644 --- a/nuttx/arch/arm/src/str71x/str71x_irq.c +++ b/nuttx/arch/arm/src/str71x/str71x_irq.c @@ -87,6 +87,14 @@ void up_irqinitialize(void) putreg32(STR71X_EICICR_IRQEN, STR71X_EIC_ICR); + /* This shouldn't be necessary, but it appears that something is needed + * here to prevent spurious interrupts when the ARM interrupts are enabled + * (Needs more investigation). + */ + + putreg32(0, STR71X_EIC_IER); /* Make sure that all interrupts are disabled */ + putreg32(0xffffffff, STR71X_EIC_IPR); /* And that no interrupts are pending */ + /* Enable global ARM interrupts */ #ifndef CONFIG_SUPPRESS_INTERRUPTS |