Reprogramming CU-GSM: Reprogramming
Both the V850 and the DSP processors are always updated during reprogramming. There is much data to be transferred, and a reprogramming can take up to 1.8 hours to perform. There is only space for one language in the unit. The required language for voice control is selected in TIS2000.
When the unit is reprogrammed the part number for the three modules is displayed: V850, Language and DSP. Together these three modules form one complete software program for the unit. The modules can be updated independently of each other with updating. As all modules are always updated at the same time the required functionality is obtained.
Irrespective of which selection is made by the CU/PU (Application) or CU/PU (Language) in Tech 2, a complete update is always made. The different menu options are for CU-AMPS (OnStar).