It provides ready-to-use user files preconfigured as defined below:
HAL is initialized
SysTick ISR implemented for HAL_Delay()
System clock configured with the maximum frequency of the device
If an existing project is copied to another location, then include paths must be
updated.
Figure 1: Example of project template
2.2 HAL data structures
Each HAL driver can contain the following data structures:
Peripheral handle structures
Initialization and configuration structures
Specific process structures.
2.2.1 Peripheral handle structures
The APIs have a modular generic multi-instance architecture that allows working with
several IP instances simultaneously.
PPP_HandleTypeDef *handle is the main structure that is implemented in the HAL
drivers. It handles the peripheral/module configuration and registers and embeds all the
structures and variables needed to follow the peripheral device flow.
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