[资料分享] F28335 DA模块程序

DA模块程序

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#define DAC_SYNC    GpioDataRegs.GPBDAT.bit.GPIO55  
#define DAC_LDAC    GpioDataRegs.GPBDAT.bit.GPIO56  
//Output DA  
while(SpiaRegs.SPIFFTX.bit.TXFFST != 0) { }  
DAC_LDAC = 0;  
for(i=0;i<1;i++);  
DAC_SYNC = 0;  
               // Transmit data  
spi_xmit(DA_COMMAND);  
spi_xmit(DA_data_H);  
spi_xmit(DA_data_L);  
for(i=0;i<300;i++);  
DAC_SYNC = 1;  
for(i=0;i<1;i++);  
DAC_LDAC = 1;