saravana kumar

imx 233 SPI communication

Discussion created by saravana kumar on Mar 29, 2011
Latest reply on Apr 4, 2011 by Balaji Venkatachalam

In imx233 documentation

The SPI bus is inherently a full-duplex bidirectional interface. However, the i.MX23 has a single DMA channel for SSP; therefore, the SSP must be programmed for either transmit or receive. In receive mode, the SSP continuously transfers the word written to its data register. In transmit mode, the SSP ignores incoming data.

i need to communicate with SPI half duplex means how to start, can anybody help on this