local calc = utils.Crc16(b0..b1)
local calcEndian = bor(rsh(calc,8), lsh(band(calc, 0xff), 8))
local cmd = (cset..'1 %s%04x'):format( b1, calcEndian)
local calc = utils.Crc16(b0..b1)
local calcEndian = bor(rsh(calc,8), lsh(band(calc, 0xff), 8))
local cmd = (cset..'1 %s%04x'):format( b1, calcEndian)