[参考译文] CC1312R：在通过 UART 接收到过多数据期间不向闪存写入数据

https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1194079/cc1312r-not-writing-to-flash-during-received-too-much-data-via-uart

大家好、我有一个连接到 BeagleBone 的 CC1312。 BeagleBone 通过 UART 向 CC1312发送命令。 一切都正常、但如果发送过多命令(在短时间内)写入 CC1312的闪存、CC1312会复位、并且在其闪存中数据错误。 当 CC1312在无线电接收器上时、会发生这种情况。 很遗憾、我无法发送整个程序、但它如下所示：

// I use UART2_Mode_CALLBACK;
    void readCallbackUart(UART2_Handle handle, void *buf, size_t count,
                          void *userArg, int_fast16_t status)
    {
        device.isUartRead = status == UART2_STATUS_SUCCESS ? 1 : 0;
        // I tried to add following but it did not help
        if (status != UART2_STATUS_SUCCESS)
        {
            UART2_flushRx(uartHandle);
        }
    }

    // radio receiving and uart processing
    RF_postCmd(rfHandle, (RF_Op *)&RF_cmdPropRx, RF_PriorityNormal,
               radioCallback,
               RF_EventRxEntryDone);
    while (((volatile RF_Op *)&RF_cmdPropRx)->status < 4)
    {
        if (device.isUartRead)
        {

            // here is called a function performing writing to flash
            // it uses two region, one si a mirror to allow change only some without
            // having the whole region in ram hence there are commands NVS_erase
            // and NVS_write
            // after processing the command ACK via uart is sent
            
            device.isUartRead = 0;
            UART2_read(uartHandle, &uartBuffer, sizeof(uartBuffer), NULL);
        }
    }
    
    // radio callback
    void radioCallback(RF_Handle h, RF_CmdHandle ch, RF_EventMask e)
    {
        if (e & RF_EventRxEntryDone)
        {
            memcpy(rxPacket, (uint8_t *)&currentDataEntry->data,
                   (*(uint8_t *)(&(currentDataEntry->data))) + NUM_APPENDED_BYTES);

            RFQueue_nextEntry();
            // I added following, it helped but only a bit
            if (device.isUartRead)
            {
                return;
            }
            
            processData();// processing the received data
        }
    }

我猜这是由于 UART 输入缓冲区已满而导致器件复位(此时可能正在执行闪存擦除/写入)、但我不确定。 无论如何、在我处理当前 UART 数据之前、我应该如何轻松地避免将任何其他数据接收到 UART 输入缓冲器中？