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Small refactoring to digitalWrite

This commit is contained in:
Cristian Maglie 2012-06-11 12:45:16 +02:00
parent f18378d5dc
commit b6eef92980
1 changed files with 12 additions and 3 deletions
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15
hardware/arduino/sam/cores/arduino/wiring_digital.c
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@ -34,16 +34,25 @@ extern void pinMode( uint32_t ulPin, uint32_t ulMode )
case INPUT:
/* Enable peripheral for clocking input */
pmc_enable_periph_clk( g_APinDescription[ulPin].ulPeripheralId ) ;
PIO_Configure( g_APinDescription[ulPin].pPort, PIO_INPUT, g_APinDescription[ulPin].ulPin, 0 ) ;
PIO_Configure(
g_APinDescription[ulPin].pPort,
PIO_INPUT,
g_APinDescription[ulPin].ulPin,
0 ) ;
break ;
case OUTPUT:
/* if all pins are output, disable PIO Controller clocking, reduce power consomption */
PIO_Configure(
g_APinDescription[ulPin].pPort,
PIO_OUTPUT_1,
g_APinDescription[ulPin].ulPin,
g_APinDescription[ulPin].ulPinConfiguration ) ;
/* if all pins are output, disable PIO Controller clocking, reduce power consumption */
if ( g_APinDescription[ulPin].pPort->PIO_OSR == 0xffffffff )
{
pmc_disable_periph_clk( g_APinDescription[ulPin].ulPeripheralId ) ;
}
PIO_Configure( g_APinDescription[ulPin].pPort, PIO_OUTPUT_1, g_APinDescription[ulPin].ulPin, g_APinDescription[ulPin].ulPinConfiguration ) ;
break ;
default: