TMS320F28P650DK: XBARINPUT触发外部中断

lin huang

Prodigy 30 points

Part Number: TMS320F28P650DK

大家好：

我想使用GPIO输出XBAR来控制外部中断信号产生，使用如下程序，发现中断并不响应，需要如何配置呢

// Included Files

#include "driverlib.h"

#include "device.h"

__interrupt void Xint1ISR(void)

{

Interrupt_clearACKGroup(INTERRUPT_ACK_GROUP1);

}

// Main

void main(void)

{

// Initialize device clock and peripherals

Device_init();

// Assign RAMs and Flash banks to CPU2.

// In the default CPU2 linker cmd files, GS4, FLASH_BANK3 and FLASH_BANK4

// are used for allocating various CPU2 sections.

// In case CPU2 needs additional RAM or Flash regions, CPU1 needs to assign

// its ownership to CPU2 using the following functions :

// - MemCfg_setGSRAMControllerSel for GSRAM

// - SysCtl_allocateDxRAM for DRAM

// - SysCtl_allocateFlashBank for Flash

MemCfg_setGSRAMControllerSel(MEMCFG_SECT_GS4, MEMCFG_GSRAMCONTROLLER_CPU2);

SysCtl_allocateFlashBank(SYSCTL_FLASH_BANK3, SYSCTL_CPUSEL_CPU2);

SysCtl_allocateFlashBank(SYSCTL_FLASH_BANK4, SYSCTL_CPUSEL_CPU2);

// Boot CPU2 core

#ifdef _FLASH

Device_bootCPU2(BOOTMODE_BOOT_TO_FLASH_BANK3_SECTOR0);

#else

Device_bootCPU2(BOOTMODE_BOOT_TO_M0RAM);

#endif

// Initialize PIE and clear PIE registers. Disables CPU interrupts.

Interrupt_initModule();

// Initialize the PIE vector table with pointers to the shell Interrupt

// Service Routines (ISR).

Interrupt_initVectorTable();

GPIO_setPadConfig(201U, GPIO_PIN_TYPE_STD);

GPIO_setDirectionMode(201U, GPIO_DIR_MODE_OUT);

GPIO_setPinConfig(GPIO_201_OUTPUTXBAR1);

XBAR_setOutputMuxConfig(OUTPUTXBAR_BASE,XBAR_OUTPUT1,XBAR_OUT_MUX07_INPUTXBAR4);

GPIO_setInterruptType(GPIO_INT_XINT1, GPIO_INT_TYPE_RISING_EDGE);

GPIO_enableInterrupt(GPIO_INT_XINT1);

Interrupt_enable(INT_XINT1);

Interrupt_register(INT_XINT1, &Xint1ISR);

// Enable Global Interrupt (INTM) and realtime interrupt (DBGM)

EINT;

ERTM;

// Loop Forever

for(;;)

{

GPIO_writePin(201U, 0);

// Delay for a bit.

DEVICE_DELAY_US(500000);

GPIO_writePin(201U, 1);

// Delay for a bit.

DEVICE_DELAY_US(500000);

}

11 个月前

+1 Alice 11 个月前

TI__Mastermind 31920 points

您好，

请参考 XINT/XBAR Example ： gpio_ex5_interrupt_sysconfig.c (ti.com)

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TMS320F28P650DK: XBARINPUT触发外部中断