controller.py 文件源码

def _handle_blk_SET_SPEED(self, params):
        if not self._jtag_on:
            self._blk_read_buffer.append(b'\x01\x04')
        else:
            req_speed = struct.unpack("<I", params)[0]
            self._speed = 62500*(2**min(6,max(0,math.floor(
                math.log2(req_speed/62500)
            ))))
            self._blk_read_buffer.append(b'\x05\x00'+\
                                         struct.pack("<I", self._speed))