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SAMA5D4-EK: PIO Schmitt trigger logic backward

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This commit is contained in:
Gregory Nutt 2014-07-20 13:04:30 -06:00
parent 9392953ea1
commit 7ba2d9ed36
1 changed files with 5 additions and 3 deletions
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8
arch/arm/src/sama5/sam_pio.c
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@ -337,16 +337,18 @@ static inline int sam_configinput(uintptr_t base, uint32_t pin,
} }
#ifdef PIO_HAVE_SCHMITT #ifdef PIO_HAVE_SCHMITT
/* Enable/disable the Schmitt trigger */ /* Enable/disable the Schmitt trigger: Zero enables. Schmitt triggered
* inputs are enabled by default.
*/
regval = getreg32(base + SAM_PIO_SCHMITT_OFFSET); regval = getreg32(base + SAM_PIO_SCHMITT_OFFSET);
if ((cfgset & PIO_CFG_SCHMITT) != 0) if ((cfgset & PIO_CFG_SCHMITT) != 0)
{ {
regval |= pin; regval &= ~pin;
} }
else else
{ {
regval &= ~pin; regval |= pin;
} }
putreg32(regval, base + SAM_PIO_SCHMITT_OFFSET); putreg32(regval, base + SAM_PIO_SCHMITT_OFFSET);