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Altera_Forum's avatar
Altera_Forum
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19 years ago

SPI RX problems

Hi I am trying to receive data via SPI on the Nios II using a Cyclone II. The Nios is the slave and the SPI master transmits data at 2MHz. I have tested transmitting data from the Nios ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Yes, and so (IORD_ALTERA_AVALON_SPI_STATUS(SPI_0_BASE) & ALTERA_AVALON_SPI_STATUS_RRDY_MSK) == 1 is Zero anytime, check youself please.

Correct statement should be if(iord_altera_avalon_spi_status(spi_0_base) & altera_avalon_spi_status_rrdy_msk) or if((iord_altera_avalon_spi_status(spi_0_base) & altera_avalon_spi_status_rrdy_msk)==altera_avalon_spi_status_rrdy_msk)