def __write_chunk(self, chunk):
        """formats and sends a chunk of data to the device according
        to transfer protocol"""
        log.debug('writing %d bytes chunk', len(chunk))
        data = BLOCK_START + chr(len(chunk)) + chunk
        if len(chunk) < 128:
            padding = 128 - len(chunk)
            log.debug('pad with %d characters', padding)
            data = data + (' ' * padding)
        log.debug("packet size %d", len(data))
        self.__write(data)
        self._port.flush()
        return self.__got_ack()
def __write_chunk(self, chunk):
        """formats and sends a chunk of data to the device according
        to transfer protocol"""
        log.debug('writing %d bytes chunk', len(chunk))
        data = BLOCK_START + chr(len(chunk)) + chunk
        if len(chunk) < 128:
            padding = 128 - len(chunk)
            log.debug('pad with %d characters', padding)
            data = data + (' ' * padding)
        log.debug("packet size %d", len(data))
        self.__write(data)
        self._port.flush()
        return self.__got_ack()
def __write_chunk ( self , chunk ) : log . debug ( 'writing %d bytes chunk' , len ( chunk ) ) data = BLOCK_START + chr ( len ( chunk ) ) + chunk if len ( chunk ) < 128 : padding = 128 - len ( chunk ) log . debug ( 'pad with %d characters' , padding ) data = data + ( ' ' * padding ) log . debug ( "packet size %d" , len ( data ) ) self . __write ( data ) self . _port . flush ( ) return self . __got_ack ( )
formats and sends a chunk of data to the device according
        to transfer protocol
formats and sends a chunk of data to the device according to transfer protocol