Driver for the cc2538 NVIC controller. More...

Files
file	nvic.c
	Driver for the cc2538 NVIC All interrupt-related functionality is implemented here.

file	nvic.h
	Header file for the ARM Nested Vectored Interrupt Controller.

Functions
void	nvic_init ()
	Initialises the NVIC driver.

void	nvic_interrupt_enable (uint32_t intr)
	Enables interrupt intr. More...

void	nvic_interrupt_disable (uint32_t intr)
	Disables interrupt intr. More...

void	nvic_interrupt_en_restore (uint32_t intr, uint8_t v)
	Enables interrupt intr if v > 0. More...

uint8_t	nvic_interrupt_en_save (uint32_t intr)
	Checks the interrupt enabled status for intr. More...

void	nvic_interrupt_pend (uint32_t intr)
	Sets intr to pending. More...

void	nvic_interrupt_unpend (uint32_t intr)
	Sets intr to no longer pending. More...

NVIC Constants and Configuration
#define	NVIC_VTABLE_IN_SRAM 0x20000000

#define	NVIC_VTABLE_IN_CODE 0x00000000

#define	NVIC_INTERRUPT_ENABLED 0x00000001

#define	NVIC_INTERRUPT_DISABLED 0x00000000

#define	NVIC_CONF_VTABLE_BASE NVIC_VTABLE_IN_CODE

#define	NVIC_CONF_VTABLE_OFFSET 0x200000

NVIC Interrupt assignments
#define	NVIC_INT_GPIO_PORT_A 0
	GPIO port A.

#define	NVIC_INT_GPIO_PORT_B 1
	GPIO port B.

#define	NVIC_INT_GPIO_PORT_C 2
	GPIO port C.

#define	NVIC_INT_GPIO_PORT_D 3
	GPIO port D.

#define	NVIC_INT_UART0 5
	UART0.

#define	NVIC_INT_UART1 6
	UART1.

#define	NVIC_INT_SSI0 7
	SSI0.

#define	NVIC_INT_I2C 8
	I2C.

#define	NVIC_INT_ADC 14
	ADC.

#define	NVIC_INT_WDT 18
	Watchdog Timer.

#define	NVIC_INT_GPTIMER_0A 19
	GPTimer 0A.

#define	NVIC_INT_GPTIMER_0B 20
	GPTimer 0B.

#define	NVIC_INT_GPTIMER_1A 21
	GPTimer 1A.

#define	NVIC_INT_GPTIMER_1B 22
	GPTimer 1B.

#define	NVIC_INT_GPTIMER_2A 23
	GPTimer 2A.

#define	NVIC_INT_GPTIMER_2B 24
	GPTimer 2B.

#define	NVIC_INT_ADC_CMP 25
	Analog Comparator.

#define	NVIC_INT_RF_RXTX_ALT 26
	RF TX/RX (Alternate)

#define	NVIC_INT_RF_ERR_ALT 27
	RF Error (Alternate)

#define	NVIC_INT_SYS_CTRL 28
	System Control.

#define	NVIC_INT_FLASH_CTRL 29
	Flash memory control.

#define	NVIC_INT_AES_ALT 30
	AES (Alternate)

#define	NVIC_INT_PKA_ALT 31
	PKA (Alternate)

#define	NVIC_INT_SM_TIMER_ALT 32
	SM Timer (Alternate)

#define	NVIC_INT_MAC_TIMER_ALT 33
	MAC Timer (Alternate)

#define	NVIC_INT_SSI1 34
	SSI1.

#define	NVIC_INT_GPTIMER_3A 35
	GPTimer 3A.

#define	NVIC_INT_GPTIMER_3B 36
	GPTimer 3B.

#define	NVIC_INT_UDMA 46
	uDMA software

#define	NVIC_INT_UDMA_ERR 47
	uDMA error

#define	NVIC_INT_USB 140
	USB.

#define	NVIC_INT_RF_RXTX 141
	RF Core Rx/Tx.

#define	NVIC_INT_RF_ERR 142
	RF Core Error.

#define	NVIC_INT_AES 143
	AES.

#define	NVIC_INT_PKA 144
	PKA.

#define	NVIC_INT_SM_TIMER 145
	SM Timer.

#define	NVIC_INT_MACTIMER 146
	MAC Timer.

NVIC Register Declarations
#define	NVIC_EN0 0xE000E100
	Interrupt 0-31 Set Enable.

#define	NVIC_EN1 0xE000E104
	Interrupt 32-54 Set Enable.

#define	NVIC_EN2 0xE000E108
	Interrupt 64-95 Set Enable.

#define	NVIC_EN3 0xE000E10C
	Interrupt 96-127 Set Enable.

#define	NVIC_EN4 0xE000E110
	Interrupt 128-131 Set Enable.

#define	NVIC_DIS0 0xE000E180
	Interrupt 0-31 Clear Enable.

#define	NVIC_DIS1 0xE000E184
	Interrupt 32-54 Clear Enable.

#define	NVIC_DIS2 0xE000E188
	Interrupt 64-95 Clear Enable.

#define	NVIC_DIS3 0xE000E18C
	Interrupt 96-127 Clear Enable.

#define	NVIC_DIS4 0xE000E190
	Interrupt 128-131 Clear Enable.

#define	NVIC_PEND0 0xE000E200
	Interrupt 0-31 Set Pending.

#define	NVIC_PEND1 0xE000E204
	Interrupt 32-54 Set Pending.

#define	NVIC_PEND2 0xE000E208
	Interrupt 64-95 Set Pending.

#define	NVIC_PEND3 0xE000E20C
	Interrupt 96-127 Set Pending.

#define	NVIC_PEND4 0xE000E210
	Interrupt 128-131 Set Pending.

#define	NVIC_UNPEND0 0xE000E280
	Interrupt 0-31 Clear Pending.

#define	NVIC_UNPEND1 0xE000E284
	Interrupt 32-54 Clear Pending.

#define	NVIC_UNPEND2 0xE000E288
	Interrupt 64-95 Clear Pending.

#define	NVIC_UNPEND3 0xE000E28C
	Interrupt 96-127 Clear Pending.

#define	NVIC_UNPEND4 0xE000E290
	Interrupt 128-131 Clear Pending.

#define	NVIC_ACTIVE0 0xE000E300
	Interrupt 0-31 Active Bit.

#define	NVIC_ACTIVE1 0xE000E304
	Interrupt 32-54 Active Bit.

#define	NVIC_ACTIVE2 0xE000E308
	Interrupt 64-95 Active Bit.

#define	NVIC_ACTIVE3 0xE000E30C
	Interrupt 96-127 Active Bit.

#define	NVIC_ACTIVE4 0xE000E310
	Interrupt 128-131 Active Bit.

#define	NVIC_PRI0 0xE000E400
	Interrupt 0-3 Priority.

#define	NVIC_PRI1 0xE000E404
	Interrupt 4-7 Priority.

#define	NVIC_PRI2 0xE000E408
	Interrupt 8-11 Priority.

#define	NVIC_PRI3 0xE000E40C
	Interrupt 12-15 Priority.

#define	NVIC_PRI4 0xE000E410
	Interrupt 16-19 Priority.

#define	NVIC_PRI5 0xE000E414
	Interrupt 20-23 Priority.

#define	NVIC_PRI6 0xE000E418
	Interrupt 24-27 Priority.

#define	NVIC_PRI7 0xE000E41C
	Interrupt 28-31 Priority.

#define	NVIC_PRI8 0xE000E420
	Interrupt 32-35 Priority.

#define	NVIC_PRI9 0xE000E424
	Interrupt 36-39 Priority.

#define	NVIC_PRI10 0xE000E428
	Interrupt 40-43 Priority.

#define	NVIC_PRI11 0xE000E42C
	Interrupt 44-47 Priority.

#define	NVIC_PRI12 0xE000E430
	Interrupt 48-51 Priority.

#define	NVIC_PRI13 0xE000E434
	Interrupt 52-53 Priority.

#define	NVIC_PRI14 0xE000E438
	Interrupt 56-59 Priority.

#define	NVIC_PRI15 0xE000E43C
	Interrupt 60-63 Priority.

#define	NVIC_PRI16 0xE000E440
	Interrupt 64-67 Priority.

#define	NVIC_PRI17 0xE000E444
	Interrupt 68-71 Priority.

#define	NVIC_PRI18 0xE000E448
	Interrupt 72-75 Priority.

#define	NVIC_PRI19 0xE000E44C
	Interrupt 76-79 Priority.

#define	NVIC_PRI20 0xE000E450
	Interrupt 80-83 Priority.

#define	NVIC_PRI21 0xE000E454
	Interrupt 84-87 Priority.

#define	NVIC_PRI22 0xE000E458
	Interrupt 88-91 Priority.

#define	NVIC_PRI23 0xE000E45C
	Interrupt 92-95 Priority.

#define	NVIC_PRI24 0xE000E460
	Interrupt 96-99 Priority.

#define	NVIC_PRI25 0xE000E464
	Interrupt 100-103 Priority.

#define	NVIC_PRI26 0xE000E468
	Interrupt 104-107 Priority.

#define	NVIC_PRI27 0xE000E46C
	Interrupt 108-111 Priority.

#define	NVIC_PRI28 0xE000E470
	Interrupt 112-115 Priority.

#define	NVIC_PRI29 0xE000E474
	Interrupt 116-119 Priority.

#define	NVIC_PRI30 0xE000E478
	Interrupt 120-123 Priority.

#define	NVIC_PRI31 0xE000E47C
	Interrupt 124-127 Priority.

#define	NVIC_PRI32 0xE000E480
	Interrupt 128-131 Priority.

#define	NVIC_PRI33 0xE000E480
	Interrupt 132-135 Priority.

#define	NVIC_PRI34 0xE000E484
	Interrupt 136-139 Priority.

#define	NVIC_PRI35 0xE000E488
	Interrupt 140-143 Priority.

#define	NVIC_PRI36 0xE000E48c
	Interrupt 144-147 Priority.

Detailed Description

Driver for the cc2538 NVIC controller.

Function Documentation

void nvic_interrupt_disable ( uint32_t intr )

Disables interrupt intr.

Parameters

intr	The interrupt number (NOT the vector number). For example, GPIO Port A interrupt is 0, not 16.

Possible values for the intr param are defined as NVIC_INT_xyz. For instance, to disable the GPIO Port A interrupt, pass NVIC_INT_GPIO_PORT_A

Definition at line 71 of file nvic.c.

Referenced by nvic_interrupt_en_save(), and rtimer_isr().

void nvic_interrupt_en_restore	(	uint32_t	intr,
		uint8_t	v
	)

Enables interrupt intr if v > 0.

Parameters

intr	The interrupt number (NOT the vector number). For example, GPIO Port A interrupt is 0, not 16.
v	0: No effect, 1: Enables the interrupt

This function is useful to restore an interrupt to a state previously saved by nvic_interrupt_en_save. Thus, if when nvic_interrupt_en_save was called the interrupt was enabled, this function will re-enabled it. Possible values for the intr param are defined as NVIC_INT_xyz. For instance, to disable the GPIO Port A interrupt, pass NVIC_INT_GPIO_PORT_A

Definition at line 78 of file nvic.c.

uint8_t nvic_interrupt_en_save ( uint32_t intr )

Checks the interrupt enabled status for intr.

Parameters

intr	The interrupt number (NOT the vector number). For example, GPIO Port A interrupt is 0, not 16.

Returns: 1: Enabled, 0: Disabled

Possible values for the intr param are defined as NVIC_INT_xyz. For instance, to disable the GPIO Port A interrupt, pass NVIC_INT_GPIO_PORT_A

Definition at line 88 of file nvic.c.

References nvic_interrupt_disable().

void nvic_interrupt_enable ( uint32_t intr )

Enables interrupt intr.

Parameters

intr	The interrupt number (NOT the vector number). For example, GPIO Port A interrupt is 0, not 16.

Possible values for the intr param are defined as NVIC_INT_xyz. For instance, to enable the GPIO Port A interrupt, pass NVIC_INT_GPIO_PORT_A

Definition at line 64 of file nvic.c.

Referenced by rtimer_arch_schedule(), uart_init(), and udma_init().

void nvic_interrupt_pend ( uint32_t intr )

Sets intr to pending.

Parameters

intr	The interrupt number (NOT the vector number). For example, GPIO Port A interrupt is 0, not 16.

Possible values for the intr param are defined as NVIC_INT_xyz. For instance, to enable the GPIO Port A interrupt, pass NVIC_INT_GPIO_PORT_A

Definition at line 99 of file nvic.c.

void nvic_interrupt_unpend ( uint32_t intr )

Sets intr to no longer pending.

Parameters

intr	The interrupt number (NOT the vector number). For example, GPIO Port A interrupt is 0, not 16.

Possible values for the intr param are defined as NVIC_INT_xyz. For instance, to disable the GPIO Port A interrupt, pass NVIC_INT_GPIO_PORT_A

Definition at line 106 of file nvic.c.

Referenced by rtimer_isr().

Files

Functions

NVIC Constants and Configuration

NVIC Interrupt assignments

NVIC Register Declarations

Detailed Description

Function Documentation