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Change the main_blinky for the FM3 demo to use falling edge interrupts on the button input.

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This commit is contained in:
Richard Barry 2011-05-04 20:12:40 +00:00
parent 80db62e711
commit e8fe7aa08e
1 changed files with 10 additions and 20 deletions
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30
Demo/CORTEX_MB9B500_IAR_Keil/main_blinky.c
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@ -308,12 +308,11 @@ unsigned long ulReceivedValue;
static void prvSetupHardware( void )
{
const unsigned short usButtonInputBit = 0x01U;
SystemInit();
SystemCoreClockUpdate();
/* No analog inputs. */
FM3_GPIO->ADE = 0x00FF;
/* LED seg1 to GPIO output (P18->P1F). */
FM3_GPIO->DDR1 = 0xFF00;
FM3_GPIO->PFR1 = 0x0000;
@ -330,30 +329,21 @@ static void prvSetupHardware( void )
FM3_GPIO->DDR5 = 0x0000;
FM3_GPIO->PFR5 = 0x0000;
/* Assign the button input as GPIO. */
FM3_GPIO->PFR1 |= usButtonInputBit;
/* setting INT02_1 */
/* MB9BF500(120pin) pin63->P11,AN01,SIN1_1,INT02_1,RX1_2 */
// GPIO->EPFR06 = 0x00000020; /* bit5,4:EINT02S=0b10 EINT-ch2 use INT02_1 */
/* Button interrupt on falling edge. */
FM3_EXTI->ELVR = 0x0003;
// GPIO->ADE &= 0xFFFD; /* bit2:ADE2=0b0 AN01pin use digital input/output pin */
// GPIO->PFR1 |= 0x0002; /* bit2:PFR1_2=0b1 P11pin use peripheral port */
/* I/O port setting end */
FM3_EXTI->ENIR = 0x0000; /* INT interrupt disable */
FM3_EXTI->ELVR = 0x0030; /* bit5,4:LB2,LA2=0b11 INT2 low level edge */
FM3_EXTI->EICL = 0x0000; /* bit2:ECL=0b0 INT2 interrupt request clear */
// FM3_EXTI->ENIR = 0x0004; /* bit2:EN2=0b1 enable INT2 */
FM3_EXTI->ENIR = 0x0001; /* Enable INT0. */
/* Clear all external interrupts. */
FM3_EXTI->EICL = 0x0000;
/* Enable the button interrupt. */
FM3_EXTI->ENIR |= usButtonInputBit;
/* Setup the GPIO and the NVIC for the switch used in this simple demo. */
NVIC_SetPriority( EXINT0_7_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
NVIC_EnableIRQ( EXINT0_7_IRQn );
// MSS_GPIO_config( MSS_GPIO_8, MSS_GPIO_INPUT_MODE | MSS_GPIO_IRQ_EDGE_NEGATIVE );
// MSS_GPIO_enable_irq( MSS_GPIO_8 );
}
/*-----------------------------------------------------------*/