# Mapping for standard ME7.5/ME7.1
#
# Version 1.20, (c) mki 09/2011
#
#
# Normally you should not need to edit this file!!
#
# Remark: the conversion factor of injection timing variables te_w, te2_w, ti_b1, ti_b2, ti_avg, timx_w, timxth_w
# varies between different ecu's. The conversion of injection time internal value -> physical value  depends
# on the ecu's cpu speed:
# 20 MHz -> factor = (1/312.5)   = 0.0032     (3.2us/TickTime) 
# 24 MHz -> factor = (1/375)     = 0.00266667 (2.667us/TickTime)
# 32 MHz -> factor = (1/250)     = 0.0040     (4us/TickTime)        (*)
# 40 MHz -> factor = (1/312.5)   = 0.0032     (3.2us/TickTime)      (*)
#     (*) 32MHz and 40MHz use doubled divide factor for timer T4 compared to 20MHz and 24MHz.
# In this map file, the conversion factors for 24MHz are inserted as default.
# The ME7Info tool will automatically determine the used cpu speed and put the
# correct conversion factors into generated ecu characteristics files!
# -> Changed conversion factors for injection timing variables in this file will not be effective.
#
# In addition, the conversion factor of following constants is also dependent on cpu frequency:
# TEMIN, TEMINVA, TVUB, TVTSPEP, DTEPRU, DTIABS    : same factor as for injection timing variables
# KRKTE                                            : factor of inj. timing variables divided by 24



I think I understand better now.Thanks to all