how can i use cs8900a in NIOSII?

I fount that there is no HAL and UCOSII folder in the path of \altera\kits\nios2\components\altera_avalon_cs8900.Then how can i use cs8900a in NIOSII?

If I have to write the HAL drive ,is there existing example that i can copy or imitate?

thanks to all!

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