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Altera_Forum's avatar
Altera_Forum
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11 years ago

SPI problem

Hi, I prepare design with NiosII and SPI bus with 4 slaves. All slaves have different SPI standard (I mean clock polarity and clock phase to data). Is there a possibility to change SPI setup by the s...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

No. On opencores you usually find the bare-metal core and you need to integrate it into your system.

In general you need:

1. build a HDL wrapper to interface to Avalon bus; most of opencores devices are based on wishbone bone which can be interfaced to Avalon in a quite straightforward way

2. create the Qsys custom component

3. write the HAL driver: this can be as simple as raw IOWRs/IORDs at device base address + reg