in SPI Slave booting from a host procesor, do i have to use DMA when transmiting data to DSP21371?
Host can send data in any mode either using DMA or Core.
I saw that in booting via SPI - the SPI signals of the primery SPI port are by default on the DPI pins 1 to 4. Do i have to connect the signal to these pins again via SRU1 and reconfigure them for output or input?And at this time the SPI is in slave mode.
And i want also to connect the ADSP21371 to Audio codec ADAU1361 and to use the second SPIB in master mode and SPORTS. Using the SPORTs 0 & 1 they uses one clock , frame signals of the codec. So is it necessarily to connet the clock and frame signals twice on the DAI pins - clock and frame signal of SPORT0 and again clock and frame signal od Sport1 on other pins. Or can i connect only the signals of one SPORT an the Data signal of the secon Sport withought the frame and clock signal of the second Sport?
In case you are using the default DPI configuration then you need not have to configure the DPI again. For the SPORT clock and frame sync signals you can route from the same DAI pin to both the SPORTs. For example, if CODEC clock is connected to DAI 1 then from DAI 1 you can route to SPORT 0 clock and SPORT 1 clock using SRU. You can use the sameway for Frame sync as well.
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