Default ISR Stubs

Overview

Weak aliases for all PLIC interrupt sources.

Warning

IMPLEMENTATION FILE: This header contains function definitions and weak aliases. It must be included exactly once in the project (typically by irq.c or a dedicated vector.c), otherwise linker errors will occur.

Note

These definitions allow the application to override a specific handler (e.g., irq_m_user_timer_0_handler) by simply defining it in main.c. If not defined, they default to irq_handleDefault.

Example of modifying default IRQ function with custom content

 // Assign a task to timer 0 interrupt handler, and override the default handler.
 // When timer 0 interrupt fires, it will execute the user-defined function instead of the default one.
 void irq_m_userTimer0_handler(){
        printf("Entering timer 0 interrupt routine .. \n");
        count++;
        printf("Count:%d .. Done \n",count);
}

Functions
int	irq_handleDefault (void)
	Default Fallback Interrupt Handler.
int	irq_m_uart0_handler (void)
	UART (IDs 1-3) Meaning: Machine Mode UART 0 Handler.
int	irq_m_uart1_handler (void)
int	irq_m_uart2_handler (void)
int	irq_m_spi0_handler (void)
	SPI (IDs 6-8).
int	irq_m_spi1_handler (void)
int	irq_m_spi2_handler (void)
int	irq_m_i2c0_handler (void)
	I2C (IDs 11-15).
int	irq_m_i2c1_handler (void)
int	irq_m_i2c2_handler (void)
int	irq_m_i2c3_handler (void)
int	irq_m_i2c4_handler (void)
int	irq_m_gpio0_0_handler (void)
	GPIO (IDs 16-19).
int	irq_m_gpio0_1_handler (void)
int	irq_m_gpio1_0_handler (void)
int	irq_m_gpio1_1_handler (void)
int	irq_m_userTimer0_handler (void)
	User Timer (IDs 21-25).
int	irq_m_userTimer1_handler (void)
int	irq_m_userTimer2_handler (void)
int	irq_m_userTimer3_handler (void)
int	irq_m_userTimer4_handler (void)
int	irq_m_watchDog0_handler (void)
	WatchDog Timer (IDs 26-27).
int	irq_m_watchDog1_handler (void)
int	irq_m_axiA_handler (void)
	AXI A (ID 30).
int	irq_m_l2Cache_handler (void)
	L2 Cache Control (ID 31).
int	irq_m_user_a_handler (void)
	User Interrupts (IDs 32-39) /*.
int	irq_m_user_b_handler (void)
int	irq_m_user_c_handler (void)
int	irq_m_user_d_handler (void)
int	irq_m_user_e_handler (void)
int	irq_m_user_f_handler (void)
int	irq_m_user_g_handler (void)
int	irq_m_user_h_handler (void)
int	irq_m_invalid_handler (void)
	System Interrupts.
int	irq_m_system_axi_a_handler (void)
int	irq_m_watch_dog_handler (void)

Function Documentation

irq_handleDefault()

int irq_handleDefault

(

void

)

#include <irq_handler_stub.h>

Default Fallback Interrupt Handler.

Invoked if an interrupt fires but no specific handler is defined.

Returns

0

Definition at line 68 of file irq_handler_stub.h.

irq_m_axiA_handler()

int irq_m_axiA_handler

(

void

)

#include <irq_handler_stub.h>

AXI A (ID 30).

irq_m_gpio0_0_handler()

int irq_m_gpio0_0_handler

(

void

)

#include <irq_handler_stub.h>

GPIO (IDs 16-19).

irq_m_gpio0_1_handler()

int irq_m_gpio0_1_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_gpio1_0_handler()

int irq_m_gpio1_0_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_gpio1_1_handler()

int irq_m_gpio1_1_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_i2c0_handler()

int irq_m_i2c0_handler

(

void

)

#include <irq_handler_stub.h>

I2C (IDs 11-15).

irq_m_i2c1_handler()

int irq_m_i2c1_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_i2c2_handler()

int irq_m_i2c2_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_i2c3_handler()

int irq_m_i2c3_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_i2c4_handler()

int irq_m_i2c4_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_invalid_handler()

int irq_m_invalid_handler

(

void

)

#include <irq_handler_stub.h>

System Interrupts.

irq_m_l2Cache_handler()

int irq_m_l2Cache_handler

(

void

)

#include <irq_handler_stub.h>

L2 Cache Control (ID 31).

irq_m_spi0_handler()

int irq_m_spi0_handler

(

void

)

#include <irq_handler_stub.h>

SPI (IDs 6-8).

irq_m_spi1_handler()

int irq_m_spi1_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_spi2_handler()

int irq_m_spi2_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_system_axi_a_handler()

int irq_m_system_axi_a_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_uart0_handler()

int irq_m_uart0_handler

(

void

)

#include <irq_handler_stub.h>

UART (IDs 1-3) Meaning: Machine Mode UART 0 Handler.

irq_m_uart1_handler()

int irq_m_uart1_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_uart2_handler()

int irq_m_uart2_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_user_a_handler()

int irq_m_user_a_handler

(

void

)

#include <irq_handler_stub.h>

User Interrupts (IDs 32-39) /*.

irq_m_user_b_handler()

int irq_m_user_b_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_user_c_handler()

int irq_m_user_c_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_user_d_handler()

int irq_m_user_d_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_user_e_handler()

int irq_m_user_e_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_user_f_handler()

int irq_m_user_f_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_user_g_handler()

int irq_m_user_g_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_user_h_handler()

int irq_m_user_h_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_userTimer0_handler()

int irq_m_userTimer0_handler

(

void

)

#include <irq_handler_stub.h>

User Timer (IDs 21-25).

irq_m_userTimer1_handler()

int irq_m_userTimer1_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_userTimer2_handler()

int irq_m_userTimer2_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_userTimer3_handler()

int irq_m_userTimer3_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_userTimer4_handler()

int irq_m_userTimer4_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_watch_dog_handler()

int irq_m_watch_dog_handler

(

void

)

#include <irq_handler_stub.h>

irq_m_watchDog0_handler()

int irq_m_watchDog0_handler

(

void

)

#include <irq_handler_stub.h>

WatchDog Timer (IDs 26-27).

irq_m_watchDog1_handler()

int irq_m_watchDog1_handler

(

void

)

#include <irq_handler_stub.h>