I have met some problems with dm365 SPI.In my case,I need to use the spi to control the chip MAX4587.There have four channel NO1,NO2,NO3 and NO4 on the chip MAX4587.And the output port is named COM.I just have to write a data of 0x02 to the MAX4587 to link the COM with NO2.The following code is what I do with the SPI.Is there any other work I should do with the SPI?
/* Reset SPI */
SPI_SPIGCR0 = 0x00000000;
_wait( 1000 );
/* Release SPI */
SPI_SPIGCR0 = 0x00000001;
/* SPI 4-Pin Mode setup */
SPI_SPIGCR1 = 0x00000000
| ( 0 << 24 ) // SPIEN off (must be set to 1 after all other SPI config bits written)
| ( 0 << 16 ) // Loopback disabled
| ( 1 << 1 ) // Internal CLK
| ( 1 << 0 ); // Master
SPI_SPIPC0 = 0x00000000
| ( 1 << 11 ) // DI
| ( 1 << 10 ) // DO
| ( 1 << 9 ) // CLK
| ( 0 << 1 ) // EN1
| ( 1 << 0 ); // EN0
SPI_SPIFMT0 = 0x00000000
| ( 0 << 20 ) // SHIFTDIR
| ( 0 << 17 ) // Polarity
| ( 0 << 16 ) // Phase
| ( 147 << 8 ) // Prescale
| ( 8 << 0 ); // Char Len
spidat1 = 0x00000000
| ( 0 << 28 ) // CSHOLD
| ( 0 << 24 ) // Format [0]
| ( 2 << 16 ) // CSNR [only SCS0 enbled]
| ( 0 << 0 ); // Data bits
SPI_SPIDAT1 = spidat1;
SPI_SPIDELAY = 0x00000000
| ( 8 << 24 ) // C2TDELAY
| ( 8 << 16 ); // T2CDELAY
SPI_SPIDEF = 0x00000000
| ( 1 << 1 ) // EN1 inactive high
| ( 1 << 0 ); // EN0 inactive high
SPI_SPIINT = 0x00000000
| ( 0 << 16 ) //
| ( 0 << 8 ) //
| ( 0 << 6 ) //
| ( 1 << 4 ); //
SPI_SPILVL = 0x00000000
| ( 0 << 8 ) // EN0
| ( 0 << 6 ) // EN0
| ( 0 << 4 ); // EN0
/* Enable SPI */
SPI_SPIGCR1 |= ( 1 << 24 ); // SPIEN on
SPI_SPIDAT1 = spidat1 | 0x02;
