[参考译文] TMS320F28388D：在基于 EtherCAT 通信的代码中的闪存操作期间 CM 和 CPU1之间的 IPC 通信方法

https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1461096/tms320f28388d-ipc-communication-method-between-cm-and-cpu1-during-flash-operations-in-ethercat-communication-based-code

工具与软件：

你(们)好

在开发 EtherCAT 通信代码时发生问题。

该系统基于双核架构、在 CPU1和 Cortex-M4之间建立了 IPC 通信。

但是、在闪存运行期间、会观察到 IPC 通信出现间歇性中断。

根据当前的分析、发现出现问题是因为 sendCommand传递函数 whileCortex-M4文件的主例程中的循环停止运行、导致通信中断。

您能否对该问题的可能原因提供任何见解？

void CM_init(void)
{
    //
    // Disable the watchdog
    //
    SysCtl_disableWatchdog();

#ifdef _FLASH
    //
    // Copy time critical code and flash setup code to RAM. This includes the
    // following functions: InitFlash();
    //
    // The RamfuncsLoadStart, RamfuncsLoadSize, and RamfuncsRunStart symbols
    // are created by the linker. Refer to the device .cmd file.
    //
    memcpy(&RamfuncsRunStart, &RamfuncsLoadStart, (size_t)&RamfuncsLoadSize);

    //
    // Claim the Flash Pump Semaphore before initializing Flash
    //
    Flash_claimPumpSemaphore(FLASH_CM_WRAPPER);

    //
    // Call Flash Initialization to setup flash waitstates. This function must
    // reside in RAM.
    //
    Flash_initModule(FLASH0CTRL_BASE, FLASH0ECC_BASE, DEVICE_FLASH_WAITSTATES);

    //
    // Set Flash Bank and Pump power mode to Active
    //
    Flash_setBankPowerMode(FLASH0CTRL_BASE, FLASH_BANK, FLASH_BANK_PWR_ACTIVE);
    Flash_setPumpPowerMode(FLASH0CTRL_BASE, FLASH_PUMP_PWR_ACTIVE);

    //
    // Release the Flash Pump Semaphore after initialization
    //
    Flash_releasePumpSemaphore();

#endif

    //
    // Turn on all peripherals
    //
    CM_enableAllPeripherals();

    //
    // Sets the NVIC vector table offset address.
    //
#ifdef _FLASH
    Interrupt_setVectorTableOffset((uint32_t)vectorTableFlash);
#else
    Interrupt_setVectorTableOffset((uint32_t)vectorTableRAM);
#endif
    
}

#else
    HW_Init();
#endif
    MainInit();

    bRunApplication = TRUE;
    do

    {
        GPIO_setPortPins(GPIO_PORT_C, GPIO_GPCSET_GPIO93);
        
        IPC_Write(IPC_CM_L_CPU1_R, IPC_FLAG2, IPC_CMD_READ_MEM1, 6);
        
        GPIO_clearPortPins(GPIO_PORT_C, GPIO_GPCCLEAR_GPIO93);

        MainLoop();
        DEVICE_DELAY_US((uint32_t)(5.));
        BackTicker++;
        
    } while (bRunApplication == TRUE);

void main(void)
{
    //
    // Disable the watchdog
    //
    SysCtl_disableWatchdog();

#ifdef _FLASH
    //
    // Copy time critical code and flash setup code to RAM. This includes the
    // following functions: Flash_initModule();
    //
    // The RamfuncsLoadStart, RamfuncsLoadSize, and RamfuncsRunStart symbols
    // are created by the linker. Refer to the device .cmd file.
    //
    memcpy(&RamfuncsRunStart, &RamfuncsLoadStart, (size_t)&RamfuncsLoadSize);

    //
    // Claim the Flash Pump Semaphore before initializing Flash
    //
    Flash_claimPumpSemaphore(FLASH_CPU1_WRAPPER);

    //
    // Call Flash Initialization to setup flash waitstates. This function must
    // reside in RAM.
    //
    Flash_initModule(FLASH0CTRL_BASE, FLASH0ECC_BASE, DEVICE_FLASH_WAITSTATES);

    //
    // Set Flash Bank and Pump power mode to Active
    //
    Flash_setBankPowerMode(FLASH0CTRL_BASE, FLASH_BANK, FLASH_BANK_PWR_ACTIVE);
    Flash_setPumpPowerMode(FLASH0CTRL_BASE, FLASH_PUMP_PWR_ACTIVE);

    //
    // Release the Flash Pump Semaphore after initialization
    //
    Flash_releasePumpSemaphore();

#endif