Changes between Version 28 and Version 29 of warpdac_ad9775.c

Timestamp:

Jan 26, 2006, 2:44:39 PM (18 years ago)

Author:

andreat

Comment:

--

warpdac_ad9775.c

@@ -13 +13 @@
 For all functions the input variable ''baseaddr'' is the base address of the SPI Core.
 
-'''[source:/PlatformSupport/WARP_Libraries/warpdac_ad9775.c@latest#L94 void transmitdac(unsigned int* baseaddr, int val)]'''
-[[BR]]Transmits a value to a register.  ''val'' a 4 bit hex value where the 2 least significant bits are the value to be stored and the 2 most significant bits choose the register in which to store the value.
-
 '''[source:/PlatformSupport/WARP_Libraries/warpdac_ad9775.c@latest#L110 void WarpDac_InitializeSPI(unsigned int* baseaddr)]'''
-[[BR]]Initializes the SPI controller for DAC functions.  This function must be called before calling any other DAC functions.  ''dacs'' is the 4 bit hex value where the 2 least significant bits are the value to be stored and the 2 most significant bits choose the register in which to store the value.
+[[BR]]Initializes the SPI controller for DAC functions.  This function must be called before calling any other DAC functions.  
 
 '''[source:/PlatformSupport/WARP_Libraries/warpdac_ad9775.c@latest#L120 void WarpDac_InitializeDAC(unsigned int* baseaddr, unsigned char dacs)]'''
-[[BR]]This function must be called at the beginning of the program to make necessary changes in some of the registers.  Initializes the DACs specified in ''dacs'', the 4 bit hex value where the 2 least significant bits are the value to be stored and the 2 most significant bits choose the register in which to store the value.
+[[BR]]This function must be called at the beginning of the program to make necessary changes in some of the registers.  Initializes the DACs specified in ''dacs'', the 8 bit value where the 4 least significant bits choose the DAC to initialize.
 
 '''[source:/PlatformSupport/WARP_Libraries/warpdac_ad9775.c@latest#L144 void WarpDac_Reset(unsigned int* baseaddr, unsigned char dacs)]'''
-[[BR]]Resets the DAC registers to their default values.  Calls WarpDac_InitializeDAC, so there is no need to repeat it in the code.  ''dacs'' is the 4 bit hex value where the 2 least significant bits are the value to be stored and the 2 most significant bits choose the register in which to store the value.  
+[[BR]]Resets the DAC registers to their default values.  Calls WarpDac_InitializeDAC, so there is no need to repeat it in the code.  ''dacs'' is the 8 bit value where the 4 least significant bits choose the DAC to reset.  
 
 '''[source:/PlatformSupport/WARP_Libraries/warpdac_ad9775.c@latest#L158 int WarpDac_Sleep(unsigned int* baseaddr, char mode, unsigned char dacs)]'''
-[[BR]]Will take the specified DACs either in (''mode=1'') or out (''mode=0'') of sleep mode.  ''dacs'' is a 4 bit hex value where the third most significant bit specifies the register to be altered. 
+[[BR]]Will take the specified DACs either in (''mode=1'') or out (''mode=0'') of sleep mode.  ''dacs'' is the 8 bit value where the 4 least significant bits choose the DAC to alter.  
 
 '''[source:/PlatformSupport/WARP_Libraries/warpdac_ad9775.c@latest#L206 int WarpDac_FineGainAdj(unsigned int* baseaddr, char chan, unsigned char value, unsigned char dacs)]'''
-[[BR]]''dacs'' is a 4 bit hex value where the third most significant bit specifies the register to be altered. 
+[[BR]]''dacs'' is the 8 bit value where the 4 least significant bits choose the DAC to alter.  
 
 '''[source:/PlatformSupport/WARP_Libraries/warpdac_ad9775.c@latest#L256 int WarpDac_CoarseGainAdj(unsigned int* baseaddr, char chan, unsigned char value, unsigned char dacs)]'''
-[[BR]]''dacs'' is a 4 bit hex value where the third most significant bit specifies the register to be altered. 
+[[BR]]''dacs'' is the 8 bit value where the 4 least significant bits choose the DAC to alter.  
 
 '''[source:/PlatformSupport/WARP_Libraries/warpdac_ad9775.c@latest#L306 int WarpDac_OffsetAdj(unsigned int* baseaddr, char chan, short value, unsigned char dacs)]'''