= '''Analog Devices AD9775 Control Library''' =

[[BR]]

= Full Code =
'''[source:/PlatformSupport/WARP_Libraries/warpdac_ad9775.c warpdac_ad9775.c]'''
[[BR]]This file provides functions for controlling the WARP radio board's DAC chip.


= Documentation =
== Functions ==

For all functions the input variable ''baseaddr'' is the base address of the SPI Core.

'''[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.  

'''[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 registersof the DAC.  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 an 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 an 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]]Adjusts the fine gain of either the I (''chan=ICHAN'') or the Q (''chan=QCHAN'') channel.  The variable ''value'' is sent to the registers as specified by the channel setting.  ''dacs'' is an 8 bit value where the 4 least significant bits choose the DAC to alter.  Returns ''INVALID_MODE'' if the mode is incorrect. Returns ''WARP_SUCCESS'' if change is successful.

'''[source:/PlatformSupport/WARP_Libraries/warpdac_ad9775.c@latest#L256 int WarpDac_CoarseGainAdj(unsigned int* baseaddr, char chan, unsigned char value, unsigned char dacs)]'''
[[BR]]Adjusts the coarse gain of either the I (''chan=ICHAN'') or the Q (''chan=QCHAN'') channel.  The variable ''value'' is sent to the registers as specified by the channel setting.  ''dacs'' is an 8 bit value where the 4 least significant bits choose the DAC to alter.  Returns ''INVALID_MODE'' if the mode is incorrect. Returns ''WARP_SUCCESS'' if change is successful.  

'''[source:/PlatformSupport/WARP_Libraries/warpdac_ad9775.c@latest#L306 int WarpDac_OffsetAdj(unsigned int* baseaddr, char chan, short value, unsigned char dacs)]'''
[[BR]]Adjusts the DC offset of either the I (''chan=ICHAN'') or the Q (''chan=QCHAN'') channel.  The variable ''value'' is sent to the registers as specified by the channel setting.  ''value'' has a range from -1024 to 1023.  ''dacs'' is an 8 bit value where the 4 least significant bits choose the DAC to alter.  Returns ''INVALID_MODE'' if the mode is incorrect. Returns ''WARP_SUCCESS'' if change is successful.