otStudio: SPI - Code example

 #include "otFPGA.h"
 #include "otSpi.h"
 #include "otTimer.h"
 #include "otAD5664.h"
 #include "otPrintfLite.h"
 
 otAD5664::otAD5664()
 {
 }
 
 void otAD5664::init()
 {
        FpgaInit();
        SpiChannel(SA_DAC, 10, 0, SPI_CPHA);
        SpiSet(SA_DAC);
        write(ALL, (U16) 0);
 }
 
 void otAD5664::write(Channel ch, U16 adu)
 {
        U32 value = ((U32) ch << 16) | adu | 0x100000;
        //printf("%x\n", value);
        SpiCs(true);
        SSYNC;
        SpiPut((value >> 16) & 0xFF);
        SpiPut((value >> 8) & 0xFF);
        SpiPut(value & 0xFF);
        SSYNC;
        SpiCs(false);
 }
 
 void otAD5664::write(Channel ch, float Volt)
 {
        U16 adu = mVto_adu((U32) (Volt * 1000));
        write(ch, adu);
 }
 
 void otAD5664::write(Channel ch, U16 * data, U32 len)
 {
        for(U32 i = 0; i < len; i++)
                write(ch, data[i]);
 }

SPI - Code example [SPI - Serial Protocol Interface]

SPI - Code example
[SPI - Serial Protocol Interface]