[adsp21565][sharc] spi2 slave boot mode configuration

wangwanshu

on Dec 13, 2021

I would like to know spi configuration and some limits about adsp21565 startup with spi2 slave boot mode. such as spi mode、spi max frequency, spi transfer size every packet.

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0 ADIApproved

on Jan 9, 2022 11:54 PM
Hi,

In SPI slave boot mode, the boot kernel sets the SPI_CTL.CPHA bit and clears the SPI_CTL.CPOL bit. The SPI frequency is set to maximum supported by processor and transfer size of every packet is the maximum DMA size.

Regards,
Anand Selvaraj.
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0 ADIApproved

on Jan 9, 2022 11:54 PM
Hi,

In SPI slave boot mode, the boot kernel sets the SPI_CTL.CPHA bit and clears the SPI_CTL.CPOL bit. The SPI frequency is set to maximum supported by processor and transfer size of every packet is the maximum DMA size.

Regards,
Anand Selvaraj.
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