i.MX Processorsのトピックimx 233 SPI communication https://community.nxp.com/t5/i-MX-Processors/imx-233-SPI-communication/m-p/151171#M1147 <HTML><HEAD></HEAD><BODY><P>In imx233 documentation</P><P><STRONG>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,</STRONG> <STRONG>the SSP continuously transfers the word written to its data register. In transmit mode, the SSP ignores incoming data.</STRONG></P><P><STRONG>i need to communicate with SPI half duplex means how to start, can anybody help on this<BR /></STRONG></P></BODY></HTML> Wed, 30 Mar 2011 02:46:13 GMT ssankar 2011-03-30T02:46:13Z imx 233 SPI communication https://community.nxp.com/t5/i-MX-Processors/imx-233-SPI-communication/m-p/151171#M1147 <HTML><HEAD></HEAD><BODY><P>In imx233 documentation</P><P><STRONG>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,</STRONG> <STRONG>the SSP continuously transfers the word written to its data register. In transmit mode, the SSP ignores incoming data.</STRONG></P><P><STRONG>i need to communicate with SPI half duplex means how to start, can anybody help on this<BR /></STRONG></P></BODY></HTML> Wed, 30 Mar 2011 02:46:13 GMT https://community.nxp.com/t5/i-MX-Processors/imx-233-SPI-communication/m-p/151171#M1147 ssankar 2011-03-30T02:46:13Z Re: imx 233 SPI communication https://community.nxp.com/t5/i-MX-Processors/imx-233-SPI-communication/m-p/151172#M1148 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>&nbsp;&nbsp;&nbsp;&nbsp; You may use the bitbanged SPI interface. It doesnt require any DMA. You will not be finding any major difference functionally.</P><P>Regards,</P><P>Balaji</P></BODY></HTML> Tue, 05 Apr 2011 04:16:10 GMT https://community.nxp.com/t5/i-MX-Processors/imx-233-SPI-communication/m-p/151172#M1148 Balaji_ng 2011-04-05T04:16:10Z