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Altera_Forum's avatar
Altera_Forum
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11 years ago

Having trouble with the alt_spi_is_ready() function

Hi, I've been trying to control a simple SPI LED driver IC using the SPIM0 unit in my cyclone V HPS. The problem is that the alt_spi_is_ready() function doesn't do what I expect it to do. ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Hi Aldridge,

I'm confused by your question. We don’t have an alt_spi_is_ready() API - can you please double check the API you are having trouble with?

Also, we have a known limitation with SPI in mode 0. The example we provide uses SPI mode 3, and it works. What mode are you using, and what mode does the SPI LED driver IC support? If the LED driver IC supports mode 3, please give that a try.

Let me know how it goes.

Regards,

Sue