TI中文支持网Part Number:TMS320F28388D
我使用的是官方例程：ipc_ex2_msgqueue_c28x1.c和ipc_ex2_msgqueue_cm.c，在此基础上进行修改：
CPU1:
//
// Included Files
//
#include "driverlib.h"
#include "device.h"
#include "stdio.h"
#include "string.h"
#include "stdlib.h"
//
// Defines
//
#define IPC_CMD_READ_MEM0x1001
#define IPC_CMD_RESP0x2001
#define TEST_PASS0x5555
#define TEST_FAIL0xAAAA
#define DATA_SUM10
#pragma DATA_SECTION(cpu1_sendData, "MSGRAM_CPU_TO_CM")
uint32_t cpu1_readData[DATA_SUM];
uint32_t cpu1_sendData[DATA_SUM];
uint32_t pass;
IPC_MessageQueue_t messageQueue0;
IPC_Message_tTxMsg0, RxMsg0;
IPC_MessageQueue_t messageQueue1;
IPC_Message_tTxMsg1, RxMsg1;
//
//
//
__interrupt void IPC_ISR0()
{int i;bool status = false;//// Read the message from the message queue//IPC_readMessageFromQueue(IPC_CPU1_L_CM_R, &messageQueue0, IPC_ADDR_CORRECTION_ENABLE,&RxMsg0, IPC_NONBLOCKING_CALL);if(RxMsg0.command == IPC_CMD_READ_MEM){status = true;//// Read and compare data//for(i=0; i<RxMsg0.dataw1; i++){if(i < DATA_SUM){cpu1_readData[i] = *((uint32_t *)RxMsg0.address + i);}if(*((uint32_t *)RxMsg0.address + i) != i)status = false;}}//// Send response message//TxMsg0.command = IPC_CMD_RESP;TxMsg0.address = 0; // Not usedTxMsg0.dataw1 = status ? TEST_PASS : TEST_FAIL;TxMsg0.dataw2 = RxMsg0.dataw2; // Use the message identifier from the received messageIPC_sendMessageToQueue(IPC_CPU1_L_CM_R, &messageQueue0, IPC_ADDR_CORRECTION_DISABLE,&TxMsg0, IPC_NONBLOCKING_CALL);//// Acknowledge the flag//IPC_ackFlagRtoL(IPC_CPU1_L_CM_R, IPC_FLAG0);//// Acknowledge the PIE interrupt.//Interrupt_clearACKGroup(INTERRUPT_ACK_GROUP11);
}
//
// Main
//
void main(void)
{int i;//// Initialize device clock and peripherals//Device_init();//// Boot CM core//
#ifdef _FLASHDevice_bootCM(BOOTMODE_BOOT_TO_FLASH_SECTOR0);
#elseDevice_bootCM(BOOTMODE_BOOT_TO_S0RAM);
#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();//// Clear any IPC flags if set already//IPC_clearFlagLtoR(IPC_CPU1_L_CM_R, IPC_FLAG_ALL);
/*******************************************cpu1 send cm read******************************************************************///// Initialize message queue//IPC_initMessageQueue(IPC_CPU1_L_CM_R, &messageQueue1, IPC_INT1, IPC_INT1);
/*******************************************cpu1 read cm send******************************************************************///// Enable IPC interrupts//IPC_registerInterrupt(IPC_CPU1_L_CM_R, IPC_INT0, IPC_ISR0);//// Initialize message queue//IPC_initMessageQueue(IPC_CPU1_L_CM_R, &messageQueue0, IPC_INT0, IPC_INT0);//// Synchronize both the cores//IPC_sync(IPC_CPU1_L_CM_R, IPC_FLAG31);//// Enable Global Interrupt (INTM) and realtime interrupt (DBGM)//EINT;ERTM;memset(cpu1_readData,0,sizeof(cpu1_readData));memset(cpu1_sendData,0,sizeof(cpu1_sendData));//// End of example. Loop forever//while(1);{//// Fill in the data to be sent//for(i=0; i<DATA_SUM; i++){cpu1_sendData[i] = 0x5a5a1234 + 2 * i;}//// Update the message//TxMsg1.command = IPC_CMD_READ_MEM;TxMsg1.address = (uint32_t)cpu1_sendData;TxMsg1.dataw1 = DATA_SUM; // Using dataw1 as data lengthTxMsg1.dataw2 = 1;// Message identifier//// Send message to the queue// Since C28x and CM does not share the same address space for shared RAM,// ADDRESS_CORRECTION is enabled//IPC_sendMessageToQueue(IPC_CPU1_L_CM_R, &messageQueue1, IPC_ADDR_CORRECTION_ENABLE,&TxMsg1, IPC_BLOCKING_CALL);//// Read message from the queue// Return message from CM does not use the address field, hence// ADDRESS_COREECTION feature is not used//IPC_readMessageFromQueue(IPC_CPU1_L_CM_R, &messageQueue1, IPC_ADDR_CORRECTION_DISABLE,&RxMsg1, IPC_BLOCKING_CALL);if((RxMsg1.command == IPC_CMD_RESP) && (RxMsg1.dataw1 == TEST_PASS) && (RxMsg1.dataw2 == 1))pass = 1;elsepass = 0;}
}
CM:
//
// Included Files
//
#include "cm.h"
#include "ipc.h"
//
// Defines
//
#define IPC_CMD_READ_MEM0x1001
#define IPC_CMD_RESP0x2001
#define TEST_PASS0x5555
#define TEST_FAIL0xAAAA
#define DATA_SUM10
uint32_t cm_readData[DATA_SUM];
uint32_t cm_sendData[DATA_SUM];
uint32_t pass;
IPC_MessageQueue_t messageQueue0;
IPC_Message_tTxMsg0, RxMsg0;
IPC_MessageQueue_t messageQueue1;
IPC_Message_tTxMsg1, RxMsg1;
//
// IPC ISR for Flag 1
// C28x core sends data with message queue using Flag 0
//
__interrupt void IPC_ISR1()
{int i;bool status = false;//// Read the message from the message queue//IPC_readMessageFromQueue(IPC_CM_L_CPU1_R, &messageQueue1, IPC_ADDR_CORRECTION_ENABLE,&RxMsg1, IPC_NONBLOCKING_CALL);if(RxMsg1.command == IPC_CMD_READ_MEM){status = true;//// Read and compare data//for(i=0; i<RxMsg1.dataw1; i++){if(i < DATA_SUM){cm_readData[i] = *((uint32_t *)RxMsg1.address + i);}if(*((uint32_t *)RxMsg1.address + i) != i)status = false;}}//// Send response message//TxMsg1.command = IPC_CMD_RESP;TxMsg1.address = 0; // Not usedTxMsg1.dataw1 = status ? TEST_PASS : TEST_FAIL;TxMsg1.dataw2 = RxMsg1.dataw2; // Use the message identifier from the received messageIPC_sendMessageToQueue(IPC_CM_L_CPU1_R, &messageQueue1, IPC_ADDR_CORRECTION_DISABLE,&TxMsg1, IPC_NONBLOCKING_CALL);//// Acknowledge the flag//IPC_ackFlagRtoL(IPC_CM_L_CPU1_R, IPC_FLAG1);
}
//
// Main
//
void main(void)
{uint32_t i = 0;//// Initialize device clock and peripherals//CM_init();//// Clear any IPC flags if set already//IPC_clearFlagLtoR(IPC_CM_L_CPU1_R, IPC_FLAG_ALL);/*******************************************cpu1 send cm read******************************************************************///// Enable IPC interrupts//IPC_registerInterrupt(IPC_CM_L_CPU1_R, IPC_INT1, IPC_ISR1);//// Initialize message queue//IPC_initMessageQueue(IPC_CM_L_CPU1_R, &messageQueue1, IPC_INT1, IPC_INT1);
/*******************************************cpu1 read cm send******************************************************************///// Initialize message queue//IPC_initMessageQueue(IPC_CM_L_CPU1_R, &messageQueue0, IPC_INT0, IPC_INT0);//// Synchronize both the cores.//IPC_sync(IPC_CM_L_CPU1_R, IPC_FLAG31);//// Loop forever. Wait for IPC interrupt//while(1){//// Fill in the data to be sent//for(i=0; i<DATA_SUM; i++){cm_sendData[i] = 0x5a5a1234 + 2 * i;}//// Update the message//TxMsg0.command = IPC_CMD_READ_MEM;TxMsg0.address = (uint32_t)cm_sendData;TxMsg0.dataw1 = DATA_SUM; // Using dataw1 as data lengthTxMsg0.dataw2 = 1;// Message identifier//// Send message to the queue// Since C28x and CM does not share the same address space for shared RAM,// ADDRESS_CORRECTION is enabled//IPC_sendMessageToQueue(IPC_CM_L_CPU1_R, &messageQueue0, IPC_ADDR_CORRECTION_ENABLE,&TxMsg0, IPC_BLOCKING_CALL);//// Read message from the queue// Return message from CM does not use the address field, hence// ADDRESS_COREECTION feature is not used//IPC_readMessageFromQueue(IPC_CM_L_CPU1_R, &messageQueue0, IPC_ADDR_CORRECTION_DISABLE,&RxMsg0, IPC_BLOCKING_CALL);if((RxMsg0.command == IPC_CMD_RESP) && (RxMsg0.dataw1 == TEST_PASS) && (RxMsg0.dataw2 == 1))pass = 1;elsepass = 0;}
}
//
// End of File
//
调试：
Green Deng：
额，你好，程序里面还请说明一下具体修改的哪些位置的代码。否则一句一句去校对有点费时。
,
pengdi shi：
好的，麻烦您了。
修改位置：
1、CPU1中增加一个通道，设置接收中断函数，原先的通道停止发送（while(1);）。
/*******************************************cpu1 read cm send******************************************************************///// Enable IPC interrupts//IPC_registerInterrupt(IPC_CPU1_L_CM_R, IPC_INT0, IPC_ISR0);//// Initialize message queue//IPC_initMessageQueue(IPC_CPU1_L_CM_R, &messageQueue0, IPC_INT0, IPC_INT0);__interrupt void IPC_ISR0() {int i;bool status = false;//// Read the message from the message queue//IPC_readMessageFromQueue(IPC_CPU1_L_CM_R, &messageQueue0, IPC_ADDR_CORRECTION_ENABLE,&RxMsg0, IPC_NONBLOCKING_CALL);if(RxMsg0.command == IPC_CMD_READ_MEM){status = true;//// Read and compare data//for(i=0; i<RxMsg0.dataw1; i++){if(i < DATA_SUM){cpu1_readData[i] = *((uint32_t *)RxMsg0.address + i);}if(*((uint32_t *)RxMsg0.address + i) != i)status = false;}}//// Send response message//TxMsg0.command = IPC_CMD_RESP;TxMsg0.address = 0; // Not usedTxMsg0.dataw1= status ? TEST_PASS : TEST_FAIL;TxMsg0.dataw2= RxMsg0.dataw2; // Use the message identifier from the received messageIPC_sendMessageToQueue(IPC_CPU1_L_CM_R, &messageQueue0, IPC_ADDR_CORRECTION_ENABLE,&TxMsg0, IPC_NONBLOCKING_CALL);//// Acknowledge the flag//IPC_ackFlagRtoL(IPC_CPU1_L_CM_R, IPC_FLAG0);//// Acknowledge the PIE interrupt.//Interrupt_clearACKGroup(INTERRUPT_ACK_GROUP11);}2、在M4中，增加新的通道，设置发送
/*******************************************cpu1 read cm send******************************************************************///// Initialize message queue//IPC_initMessageQueue(IPC_CM_L_CPU1_R, &messageQueue0, IPC_INT0, IPC_INT0);while(1){//// Fill in the data to be sent//for(i=0; i<DATA_SUM; i++){cm_sendData[i] = 0x5a5a1234 + 2 * i;}//// Update the message//TxMsg0.command = IPC_CMD_READ_MEM;TxMsg0.address = (uint32_t)cm_sendData;TxMsg0.dataw1= DATA_SUM;// Using dataw1 as data lengthTxMsg0.dataw2= 1;// Message identifier//// Send message to the queue// Since C28x and CM does not share the same address space for shared RAM,// ADDRESS_CORRECTION is enabled//IPC_sendMessageToQueue(IPC_CM_L_CPU1_R, &messageQueue0, IPC_ADDR_CORRECTION_ENABLE,&TxMsg0, IPC_BLOCKING_CALL);//// Read message from the queue// Return message from CM does not use the address field, hence// ADDRESS_COREECTION feature is not used//IPC_readMessageFromQueue(IPC_CM_L_CPU1_R, &messageQueue0, IPC_ADDR_CORRECTION_DISABLE,&RxMsg0, IPC_BLOCKING_CALL);if((RxMsg0.command == IPC_CMD_RESP) && (RxMsg0.dataw1 == TEST_PASS) && (RxMsg0.dataw2 == 1))pass = 1;elsepass = 0;}
,
Green Deng：
收到，我会尽快回复
,
Green Deng：
IPC 驱动程序函数中的 IPC_ADDR_CORRECTION_ENABLE 功能仅在地址在 IPC MSGRAM 中时才起作用。 例如，如果 CPU1 正在向 CM 发送数据，则地址应在 CPU1_TO_CM_MSGRAM 的地址范围内。
你这边需要确认一下上述这点是否满足？
,
pengdi shi：
谢谢。
在CM向CPU1发送时，地址发送端和接收端都超出了范围：
在CPU1中：
在CM中：
代码中address的值，怎么改呢？
,
Green Deng：
如果不使用地址参数，或者用于发送不在 CPU1-CM IPC MSGRAM 范围内的地址，请禁用 ADDRESS_CORRECTION 功能。
IPC_sendMessageToQueue(.., .., IPC_ADDR_CORRECTION_DISABLE, .. , ..);
IPC_readMessageFromQueue(.., .., IPC_ADDR_CORRECTION_DISABLE, .. , ..);
,
pengdi shi：
禁用ADDRESS_CORRECTION功能，CM有什么办法向CPU1、CPU2传输数据吗？
,
Green Deng：
禁用 ADDRESS_CORRECTION的前提是如果不使用地址参数，或者用于发送不在 CPU1-CM IPC MSGRAM 范围内的地址，这样就可以减少空间使用
,
pengdi shi：
这个明白了，谢谢！重点是CM有什么办法向CPU1、CPU2传输数据吗
