HAL Port — Implementation Details
This documentation explains how the eCos HAL specification has been mapped onto the Adder hardware, and should be read in conjunction with that specification. The Adder platform HAL package complements the PowerPC architectural HAL and the MPC8XX variant HAL. It provides functionality which is specific to the target board.
Following a hard or soft reset the HAL will initialize or reinitialize most of the on-chip peripherals. There is an exception for RAM startup applications which depend on a ROM monitor for certain services.
For ROM or ROMRAM startup, the HAL will perform additional
initialization, setting up the external RAM and programming the
various internal registers. This is all done in the
hal_hardware_init function in the assembler
The Adder platform HAL does not affect the implementation of other parts of the eCos HAL specification. The MPC8XX variant HAL, and the PowerPC architectural HAL documentation should be consulted for further details.
|2021-10-22||eCosPro Non-Commercial Public License|