Parameters saving/loading

The structures ST_TcPfw_TempMparamFromHmi_Itf, ST_TcPfw_TempPparamFromHmi_Itf, ST_TcPfw_SupplyParam contain parameters that must be stored remanently. The following variables are stored in each structure for this purpose:

• SaveDelay: Time-delayed saving. After a parameter change, a time-delayed saving can be performed here via a number in milliseconds. Based on the entered value, the library automatically counts down this number to zero. At zero the saving routine is triggered internally and at -1 the saving delay is inactive.
• bLodParams: Via a TRUE the parameters of the corresponding structure can be loaded
• bSavingParams: Feedback that parameters are being saved.

The following flow chart should make clear how the saving process works.

During saving, a temporary file is created first. Then the backup file is deleted and the original file is converted to a backup file. As a final step, the temporary file is converted into an "original file".
This mechanism ensures that there is always a completely saved parameter file.

When loading a product via bLoadParams the following process checks whether the saved file is consistent.