HOW TO INTERPRET:
- If you see errors on any of header level, this means headers are corrupted 
- If you see errors on [HC data level], you should be able to see the detail
  from the lower tree level error code in [MCM header level] and [MCM
data level] 
- If you see errors on [MCM data level], you should be able to see the detail
  from the lower tree level error code in [ADC data level] 


[Tracklet level]
Error Code Meaning:                   
  1: max number of trackles > 256 
     (comment: it is possilbe that it is due to the GTU header corruption
              since the tracklet decoding is done first for a givne HC)
  2: number of tracklet end marker words < 2 


[HC header level]
Error Code Meaning:                   
 [H0 Error]
  1: H0 header mask has an error 
  2: H0 is insane
 [H1 Error]
  1: H1 header mask has an error 


[HC data level]
Error Code Meaning:                   
  1: No MCM data in this chamber, stop HC data reading 
  2: More mcm data than expected, stop HC data reading
  4: HC data corrupted, keep HC data reading if you set "DisableSkipData()"
  16: END_OF_TRACKLET_MARKERNEW appeared in HC data, stop HC data reading
  32: Buffer ended, stop HC data reading 



[MCM header level(MCM header and ADC mask)]
Error Code Meaning:                   
 [MCM header]
  1: Wrong MCM header mask
  2: MCM and ROB number from MCM header is different from expected 
  4: Event number of current MCM is different from that of reference MCM(1st read mcm of given SM)
  8: Event number of current MCM is from past?
  16: END_OF_TRACKLET_MARKERNEW appeared in MCM header position, stop data reading
 [ADC mask]
  1: Wrong ADC Mask word
  2: ADC counts(number from bit indicating total number and number from bit masks) from ADCMask are different
  16: END_OF_TRACKLET_MARKERNEW appeared in MCM ADC Mask word position, stop data reading



[MCM data level]
Error Code Meaning:                   
  1: Buffer short of data
  2: ADC (10) words expected. Not enough data in the buffer
  4: MCM data corrupted, keep data reading if you set "DisableSkipData()"
  16: END_OF_TRACKLET_MARKERNEW appeared in MCM data, stop data reading



[ADC data level]
Error Code Meaning:                   
  1: ADC Mask error, in this case we addup 10 words error for a given ADC channel to save memory 
  16: END_OF_TRACKLET_MARKERNEW appeared in given ADC data, stop data reading
  32: ADC column number out of ranges