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!