jlink.py 文件源码

def read(self, addr, data_len):
        """
        Reads data_len bytes from the device starting at the given address.
        @param int addr: Start address of the memory block to read.
        @param int data_len: Number of bytes to read.
        @return [int]: List of values read.
        """
        if not self._is_u32(addr):
            raise ValueError('The addr parameter must be an unsigned 32-bit value.')

        if not self._is_u32(data_len):
            raise ValueError('The data_len parameter must be an unsigned 32-bit value.')

        addr = ctypes.c_uint32(addr)
        data_len = ctypes.c_uint32(data_len)
        data = (ctypes.c_uint8 * data_len.value)()
        self.jlink.JLINKARM_ReadMem(addr, data_len, ctypes.byref(data))
        return bytes(data)