Interrupt Recommendations And Examples; Interrupt Vector Definition; Setting An Interrupt Level - Fujitsu F2MC-FR Series Application Note

3 Interrupt Recommendations and Examples

RECOMMENDATIONS AND EXAMPLES FOR THE INTERRUPT USAGE

3.1 Interrupt Vector Definition

By using the
#pragma
to use our standard template project, which contains a file called vectors.c which performs all
interrupt settings. The user may use or copy and modify this file for own projects.
Please make sure to always define the complete interrupt vector table in just one C module
and do not split it.
/* THIS SAMPLE CODE IS PROVIDED AS IS AND IS SUBJECT TO ALTERATIONS. FUJITSU */
/* MICROELECTRONICS ACCEPTS NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR */
/* ELIGIBILITY FOR ANY PURPOSES.
/*
/*---------------------------------------------------------------------------*/
#pragma intvect DefaultIRQHandler 15
#pragma intvect My_IRQHandler_1
#pragma intvect DefaultIRQHandler
#pragma intvect My_IRQHandler_2
#pragma intvect My_IRQHandler_3
#pragma intvect DefaultIRQHandler
#pragma intvect DefaultIRQHandler
#pragma intvect My_IRQHandler_4
#pragma intvect My_IRQHandler_5
#pragma intvect My_IRQHandler_6
#pragma intvect DefaultIRQHandler
. . .
Please note, that if the Interrupt service functions are located in a different C module, their
prototypes have to be defined also for the vector definition.

3.2 Setting an Interrupt Level

The following code snippet assigns the level 24 to reload timer 0 and 1.
/* THIS SAMPLE CODE IS PROVIDED AS IS AND IS SUBJECT TO ALTERATIONS. FUJITSU */
/* MICROELECTRONICS ACCEPTS NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR */
/* ELIGIBILITY FOR ANY PURPOSES.
/*
/*---------------------------------------------------------------------------*/
void InitIrqLevels(void)
{
. . .
ICR08 = 24;
. . .
. . .
}
© Fujitsu Microelectronics Europe GmbH
INTERRUPTS
Chapter 3 Interrupt Recommendations and Examples
intvect directive, an interrupt vector is defined. It is recommended
(C) Fujitsu Microelectronics Europe GmbH
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(C) Fujitsu Microelectronics Europe GmbH
/* Reload Timer 0
/* Reload Timer 1
/* Non Maskable Interrupt
/* External Interrupt 0
/* External Interrupt 1
/* External Interrupt 2
/* External Interrupt 3
/* External Interrupt 4
/* External Interrupt 5
/* External Interrupt 6
/* External Interrupt 7
/* External Interrupt 8
/* External Interrupt 9
*/
*/
- 15 -
*/
*/
*/
*/
*/
*/
*/
*/
*/
*/
*/
*/
*/
*/
MCU-AN-300055-E-V10