[参考译文] TMS320F28388D：有关 IPC 通信的问题

//
// Included Files
//
#include "driverlib.h"
#include "device.h"

//
// Defines
//
#define IPC_CMD_READ_MEM 0x1001
#define IPC_CMD_RESP 0x2001

#define TEST_PASS 0x5555
#define TEST_FAIL 0xAAAA


#pragma DATA_SECTION(readData, "MSGRAM_CPU_TO_CM")
uint32_t readData[10];

uint32_t pass;

IPC_MessageQueue_t messageQueue;
IPC_Message_t TxMsg, RxMsg;

//
// IPC ISR for Flag 1
// C28x core sends data with message queue using Flag 0
//
__interrupt void IPC_ISR1()          //增加了中断接收函数
{
int i;
//IPC_Message_t TxMsg, RxMsg;
bool status = false;

//
// Read the message from the message queue
//
IPC_readMessageFromQueue(IPC_CPU1_L_CM_R, &messageQueue, IPC_ADDR_CORRECTION_ENABLE,
&RxMsg, IPC_NONBLOCKING_CALL);

if(RxMsg.command == IPC_CMD_READ_MEM)
{
status = true;

//
// Read and compare data
//
for(i=0; i<RxMsg.dataw1; i++)
{
if((*(uint32_t *)RxMsg.address + i) != i)
status = false;
}
}

//
// Acknowledge the flag
//
IPC_ackFlagRtoL(IPC_CPU1_L_CM_R, IPC_FLAG1);

//
// Acknowledge the PIE interrupt.
//
Interrupt_clearACKGroup(INTERRUPT_ACK_GROUP1);
}













//
// Main
//
void main(void)
{
int i;


//
// Initialize device clock and peripherals
//
Device_init();


// Boot CM core
//
#ifdef _FLASH
Device_bootCM(BOOTMODE_BOOT_TO_FLASH_SECTOR0);
#else
Device_bootCM(BOOTMODE_BOOT_TO_S0RAM);
#endif

// Clear any IPC flags if set already
//
IPC_clearFlagLtoR(IPC_CPU1_L_CM_R, IPC_FLAG_ALL);

//
// Enable IPC interrupts
//
IPC_registerInterrupt(IPC_CPU1_L_CM_R, IPC_INT1, IPC_ISR1);              //注册了中断

//
// Initialize message queue
//
IPC_initMessageQueue(IPC_CPU1_L_CM_R, &messageQueue, IPC_INT1, IPC_INT1);    //初始化中断

//
// Synchronize both the cores
//


//
// Enable Global Interrupt (INTM) and realtime interrupt (DBGM)
//
EINT;
ERTM;

IPC_sync(IPC_CPU1_L_CM_R, IPC_FLAG31);
//
// Fill in the data to be sent
//
for(i=0; i<10; i++)
{
readData[i] = i;
}

//
// Update the message
//
TxMsg.command = IPC_CMD_READ_MEM;
TxMsg.address = (uint32_t)readData;
TxMsg.dataw1 = 10; // Using dataw1 as data length
TxMsg.dataw2 = 1; // Message identifier




//
// End of example. Loop forever
//
while(1)            //增加了循环发送用于测试
{

DEVICE_DELAY_US(100000);
IPC_sendMessageToQueue(IPC_CPU1_L_CM_R, &messageQueue, IPC_ADDR_CORRECTION_ENABLE,
&TxMsg, IPC_NONBLOCKING_CALL);
DEVICE_DELAY_US(100000);

}
}