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SPI Slave Mode

		
	
				

			

									
					    jlia
					
							

            
            			
				
									
											
			
			
				
			
			
			    	
			                    
                
				                on Jan 19, 2016 
				
			
			
		

		
		                     
				
        		

		    
		    		    
		    			

			    
Hello,

 
I'm trying to configure my BF707 as a SPI Slave, though getting the error ADI_SPI_CONFIGURATION_ERROR from adi_spi_SetSlaveSelect()

 
Below is my code:

 
// configure and de-assert the GPIO chip-selects for the boot eeprom

 
  ADI_GPIO_RESULT gResult;

 
 

 
 

 
  // configure SPI bus for the boot eeprom

 
  ADI_SPI_RESULT sResult;

 
  sResult = adi_spi_Open(SPI_FACEPLATE_BUS, SPIDriverMemory,sizeof(SPIDriverMemory), &g_hSpiDevice );

 
  assert (sResult == ADI_SPI_SUCCESS );

 
 

 
 

 
  //@todo eventually need to set this false to be slave

 
  sResult = adi_spi_SetMaster( g_hSpiDevice, false );

 
  assert (sResult == ADI_SPI_SUCCESS );

 
 

 
 

 
  //@todo this might need to be true for slave mode

 
  sResult = adi_spi_SetHwSlaveSelect( g_hSpiDevice, false );

 
  assert (sResult == ADI_SPI_SUCCESS );

 
 

 
 

 
  sResult = adi_spi_SetTransmitUnderflow( g_hSpiDevice, true );

 
  assert (sResult == ADI_SPI_SUCCESS );

 
 

 
 

 
  sResult = adi_spi_SetClockPhase( g_hSpiDevice, false );

 
  assert (sResult == ADI_SPI_SUCCESS );

 
 

 
 

 
  sResult = adi_spi_SetClock( g_hSpiDevice, 1000u );

 
  assert (sResult == ADI_SPI_SUCCESS );

 
 

 
 

 
  sResult = adi_spi_SetSlaveSelect( g_hSpiDevice, ADI_SPI_SSEL_ENABLE1 );

 
  assert (sResult == ADI_SPI_SUCCESS );

 
 

 
 

 
  sResult = adi_spi_SetWordSize( g_hSpiDevice, ADI_SPI_TRANSFER_8BIT );

 
  assert (sResult == ADI_SPI_SUCCESS );

 
 

 
 

 
  sResult = adi_spi_SetTxWatermark( g_hSpiDevice,

 
  ADI_SPI_WATERMARK_50,

 
  ADI_SPI_WATERMARK_DISABLE,

 
  ADI_SPI_WATERMARK_DISABLE);

 
  assert (sResult == ADI_SPI_SUCCESS );

 
 

 
 

 
  sResult = adi_spi_SetRxWatermark( g_hSpiDevice,

 
  ADI_SPI_WATERMARK_50,

 
  ADI_SPI_WATERMARK_DISABLE,

 
  ADI_SPI_WATERMARK_DISABLE);

 
  assert (sResult == ADI_SPI_SUCCESS );

 
 

 
 

 
  sResult = adi_spi_RegisterCallback( g_hSpiDevice, &SpiDmaCallback, NULL);

 
  assert (sResult == ADI_SPI_SUCCESS );

 
 

 
 

 
  sResult = adi_spi_EnableDmaMode( g_hSpiDevice, true );

 
  assert (sResult == ADI_SPI_SUCCESS );

 
I can't seem to find an example of using SPI in slave mode anywhere.

			

			
									
		                             
                        
		


				
				        
        		

			
						
									
												
			
			
                        
                                    
                        
                        
                        
            
			            
						
						
			
			
			
			
		


        
        
        
    
					

			





















	

	

					



			


				
	









	




	
			








		

		

			
    
				
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