void CWINCE500_TCP_CLIENTDlg::OnBnClickedButton4() { //Open serial port 1 //Judge whether the serial port is already opened if (m_pSerial != NULL) { m_pSerial->ClosePort(); delete m_pSerial; m_pSerial
Now that we have the USB and SD card drivers, how can we read the data on the SD card through USB? It is equivalent to using the 2440 as a USB flash drive. After connecting the USB cable, we can freel
Embedded systems often have the feature of requiring programmers to access a specific memory location. In a certain project, it is required to set the value of an integer variable with an absolute add