Error in script

[CristianAgata]

Code:

function calcolo32bit (data)   if data[3] then     --log('sono passato', data)         local byte_1 = data[6]         local byte_2 = data[5]         local byte_3 = data[4]         local byte_4 = data[3]       byte_received = ((byte_4 * 16777216)+(byte_3 * 65536)+(byte_2 * 256)+byte_1)         --log(byte_received)         s = bit.rshift(byte_received, 31)         --log(s)         exp1 = bit.rshift(byte_received, 23)         --log(exp1)         matissa = bit.band(byte_received , 8388607)         --log(matissa)         matissa2 = (matissa * 0.0000001) + 1         --log(matissa2)         risultato = (((-1)^s) * (2^(exp1-127))* matissa2)       return(risultato)   else     return(0)   end end function crc_calc(inv,cmd_set)     inv_num = {0x02,0x03,0x04,0x05,0x06,0x07}   --log('inv_num',inv_num[inv])   cmd = {{0x32,0x20,0x20,0x20,0x20,0x20,0x20},       {0x3B,0x01,0x00,0x20,0x20,0x20,0x20},       {0x3B,0x02,0x00,0x20,0x20,0x20,0x20},       {0x3B,0x03,0x00,0x20,0x20,0x20,0x20},       {0x3B,0x04,0x00,0x20,0x20,0x20,0x20},       {0x3B,0x08,0x00,0x20,0x20,0x20,0x20},       {0x3B,0x09,0x00,0x20,0x20,0x20,0x20},       {0x3B,0x1E,0x00,0x20,0x20,0x20,0x20},       {0x3B,0x31,0x00,0x20,0x20,0x20,0x20},       {0x4E,0x00,0x20,0x20,0x20,0x20,0x20},       {0x4E,0x01,0x20,0x20,0x20,0x20,0x20},       {0x4E,0x03,0x20,0x20,0x20,0x20,0x20},       {0x4E,0x04,0x20,0x20,0x20,0x20,0x20},       {0x4E,0x05,0x20,0x20,0x20,0x20,0x20}}     data = string.char(inv_num[inv],cmd[cmd_set][1],cmd[cmd_set][2],cmd[cmd_set][3],cmd[cmd_set][4],cmd[cmd_set][5],cmd[cmd_set][6],cmd[cmd_set][7])   --log('valore grezzo = ',data)   local crc_result = crc16(data)  -- use different name   --log(crc_result)   return (crc_result) end for i = 1, 6, 1 do --log(i)        crc = crc_calc(i,1) --log(crc) end

hello, try this

Hi,
thanks but it is the same error. Always first step and then error.
BR Cristian