TI中文支持网
TI专业的中文技术问题搜集分享网站

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

Part Number:TMS320F28388DOther Parts Discussed in Thread:C2000WARE

最近在用28388的以太网接口与电脑通信。由于以太网只能用CM核心访问,所以得实现从CPU到CM核的通信。

C2000ware例程里面ex1是从CPU1发送指令到CM。调试时候发现直接换成CM到CPU1会有一些问题。

感觉注释写的挺详细的。就不过多解释了。给需要的人参考一下。

CPU1的代码:

2ipc_ex1_basic_c28x1.c

//#############################################################################
//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 - https://www.ti2k.com/wp-content/uploads/ti2k/DeyiSupport_C2000_
//
// 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_MEM0x1001
#define IPC_CMD_RESP0x2001
//就是俩指示符
#define TEST_PASS0x5555
#define TEST_FAIL0xAAAA


//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 _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);//// 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
//

CM代码

2ipc_ex1_basic_cm.c

//#############################################################################
////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 - https://www.ti2k.com/wp-content/uploads/ti2k/DeyiSupport_C2000_
//
// 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_MEM0x1001
#define IPC_CMD_RESP0x2001

#define TEST_PASS0x5555
#define TEST_FAIL0xAAAA

//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
//
Yifu Chen:

不算是提问,就算是分享吧。改这东西居然改了小一天,晕

,

Ben Qin:

感谢Yifu Chen的分享!

赞(0)
未经允许不得转载:TI中文支持网 » TMS320F28388D: TMS320F28388D IPC例程,从CM发送数据到CPU1
分享到: 更多 (0)

© 2024 TI中文支持网   网站地图 鲁ICP备2022002796号-1