TMS320F28388D: TMS320F28388D IPC例程，从CM发送数据到CPU1

//#############################################################################
//此文件改编于F28388的C2000ware的IPC例程ex1
//原文件是从CPU1发指令到CM。此文件从CM发指令到CPU1
// FILE:   ipc_ex1_basic_c28x1.c
//
// TITLE:  IPC example with interrupt
//
//! \addtogroup driver_cm_c28x_dual_example_list
//! <h1> IPC basic message passing example with interrupt </h1>
//!
//! This example demonstrates how to configure IPC and pass information from
//! C28x to CM core without message queues.
//! It is recommended to run the C28x1 core first, followed by the CM core.
//!
//! \b External \b Connections \n
//!  - None.
//!
//! \b Watch \b Variables \n
//!  - pass
//!
//
//#############################################################################
// $Copyright:
// Copyright (C) 2022 Texas Instruments Incorporated - http://www.ti.com
//
// Redistribution and use in source and binary forms, with or without 
// modification, are permitted provided that the following conditions 
// are met:
// 
//   Redistributions of source code must retain the above copyright 
//   notice, this list of conditions and the following disclaimer.
// 
//   Redistributions in binary form must reproduce the above copyright
//   notice, this list of conditions and the following disclaimer in the 
//   documentation and/or other materials provided with the   
//   distribution.
// 
//   Neither the name of Texas Instruments Incorporated nor the names of
//   its contributors may be used to endorse or promote products derived
//   from this software without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// $
//###########################################################################

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

//
// 定义了两个指令数字，其实是随机的。文件里只用到了IPC_CMD_READ_MEM
//
#define IPC_CMD_READ_MEM   0x1001
#define IPC_CMD_RESP       0x2001
//就是俩指示符
#define TEST_PASS          0x5555
#define TEST_FAIL          0xAAAA


//IPC传输位32位数字。这里定义32问数组，大小为10
uint32_t readData[10];




uint32_t pass;
uint32_t data;//data为readData[10]长度，这里应该是10

//
__interrupt void IPC_ISR0()
{
    uint8_t i;
    uint32_t command, addr;
    bool status = false;

    //
    // CPU1从CM读取指令。由于CPU1和CM内核共享区域不是共用地址的，所以得enable correction
    // command读出来的就是IPC_CMD_READ_MEM
    // addr是转化过来的存储数据的起始地址
    // data是数组长度
    //
    IPC_readCommand(IPC_CPU1_L_CM_R, IPC_FLAG1, IPC_ADDR_CORRECTION_ENABLE,
                    &command, &addr, &data);

    if(command == IPC_CMD_READ_MEM)//如果读出来的指令是IPC_CMD_READ_MEM
    {
        status = true;//把状态定义为true

        //
        // 由于读到的数据是起始位addr，32位数据，data长度的数组
        // 以下操作吧数据写进read
        // 可以用CCS的watch variable实时观察数据变化
        //
        for(i=0; i<data; i++)
        {
            readData[i] = *((uint32_t *)addr + i);
        }
    }

    //
    // 将读数正确或者错误信息返回给CM
    //

    if(status)
    {
        IPC_sendResponse(IPC_CPU1_L_CM_R, TEST_PASS);
    }
    else
    {
        IPC_sendResponse(IPC_CPU1_L_CM_R, TEST_FAIL);
    }

    //
    // Acknowledge the flag
    //
    IPC_ackFlagRtoL(IPC_CPU1_L_CM_R, IPC_FLAG1);
    //这个是必须得加的。接收中断如果在CM里面，不用有这句
    //如果接收中断在C28x内核（CPU1和CPU2），就得加上这句
    Interrupt_clearACKGroup(INTERRUPT_ACK_GROUP11);
}
//
// Main
//
void main(void)
{

    //
    // 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

    //
    // 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);

    //
    // Enable IPC interrupts
    //
    IPC_registerInterrupt(IPC_CPU1_L_CM_R, IPC_INT1, IPC_ISR0);

    //
    // Synchronize both the cores.
    //
    IPC_sync(IPC_CPU1_L_CM_R, IPC_FLAG31);

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

    EINT;
    ERTM;

    //
    // End of example. Loop forever
    //
    while(1)
    {

    }
}


//
// End of File
//

//#############################################################################
////此文件改编于F28388的C2000ware的IPC例程ex1
//原文件是从CPU1发指令到CM。此文件从CM发指令到CPU1
// FILE:   ipc_ex1_basic_cm.c
//
// TITLE:  IPC example with interrupt
//
//! \addtogroup driver_cm_c28x_dual_example_list
//! <h1> IPC basic message passing example with interrupt </h1>
//!
//! This example demonstrates how to configure IPC and pass information from
//! C28x to CM core without message queues
//! It is recommended to run the C28x1 core first, followed by the CM core.
//!
//! \b External \b Connections \n
//!  - None.
//!
//! \b Watch \b Variables \n
//!  - None.
//!
//
//#############################################################################
// $Copyright:
// Copyright (C) 2022 Texas Instruments Incorporated - http://www.ti.com
//
// Redistribution and use in source and binary forms, with or without 
// modification, are permitted provided that the following conditions 
// are met:
// 
//   Redistributions of source code must retain the above copyright 
//   notice, this list of conditions and the following disclaimer.
// 
//   Redistributions in binary form must reproduce the above copyright
//   notice, this list of conditions and the following disclaimer in the 
//   documentation and/or other materials provided with the   
//   distribution.
// 
//   Neither the name of Texas Instruments Incorporated nor the names of
//   its contributors may be used to endorse or promote products derived
//   from this software without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// $
//###########################################################################

//
// Included Files
//
#include "cm.h"
#include "ipc.h"

//
// 定义了两个指令数字，其实是随机的。文件里只用到了IPC_CMD_READ_MEM
//
#define IPC_CMD_READ_MEM   0x1001
#define IPC_CMD_RESP       0x2001

#define TEST_PASS          0x5555
#define TEST_FAIL          0xAAAA

//readData是要传输给CPU1的数据。要注意数组长度。MSGRAM_CM_TO_CPU1内存长度只有800
uint32_t readData[10]={11,12,13,14,15,16,17,18,19,20};
//MSGRAM_CM_TO_CPU1是从cmd文件里面查出来的
//这是把readData的首地址放到了MSGRAM_CM_TO_CPU1内存块里面
//由于要进行地址变换，这句话是放在发送的那个核心里面。
#pragma DATA_SECTION(readData, "MSGRAM_CM_TO_CPU1")


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


    uint32_t pass;

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

    //
    // Loop forever. Wait for IPC interrupt
    //
    IPC_clearFlagLtoR(IPC_CM_L_CPU1_R, IPC_FLAG_ALL);

    //
    // Synchronize both the cores.
    //
    IPC_sync(IPC_CM_L_CPU1_R, IPC_FLAG31);

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

    //
    // 循环发送数字给CPU1
    //
    while(1)
    {
        SysCtl_delay(6000000);//等待一下，要不然发送太频繁了

        //
        // CM往CPU1发送数字。由于CPU1和CM内核共享区域不是共用地址的，所以得enable correction
        // addr是转化过来的存储数据的起始地址
        // readData传输的是首地址
        // 10是readData数组长度
        //
        IPC_sendCommand(IPC_CM_L_CPU1_R, IPC_FLAG1, IPC_ADDR_CORRECTION_ENABLE,
                        IPC_CMD_READ_MEM, (uint32_t)readData, 10);

        //
        // Wait for acknowledgment
        //
        IPC_waitForAck(IPC_CM_L_CPU1_R, IPC_FLAG1);
        //
        // Read response
        //

        if(IPC_getResponse(IPC_CM_L_CPU1_R) == TEST_PASS)
        {
            pass = 1;
        }
        else
        {
            pass = 0;
        }
        //持续让数据增加
        //这样就可以用CCS的watch variable实时观察数据变化，判断程序是否持续运行
        for(i=0; i<10; i++)
        {
            readData[i]++;
        }

    }
}


//
// End of File
//