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diplomarbeit/Tester/SW/lib/Drivers/dac.c
T
Matthias 373a8c32b2 Added Software projects 
git-svn-id: file:///srv/dev-disk-by-uuid-17e88007-4d0c-45e0-8757-cacfcc458630/repositories/svn/Diplomarbeit@55 9fe90eed-be63-e94b-8204-d34ff4c2ff93
2008-12-23 10:34:08 +00:00

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/* ---------------------------------------------------------------------------
* dac.c - v0.1 (c) 2007 Micro-key bv
* ---------------------------------------------------------------------------
* Micro-key bv
* Industrieweg 28, 9804 TG Noordhorn
* Postbus 92, 9800 AB Zuidhorn
* The Netherlands
* Tel: +31 594 503020
* Fax: +31 594 505825
* Email: support@microkey.nl
* Web: www.microkey.nl
* ---------------------------------------------------------------------------
* Description: ADC-driver
* ---------------------------------------------------------------------------
* Version(s): 0.1, 28-11-2007, fvds.
* Creation.
* ---------------------------------------------------------------------------
*/
/* ---------------------------------------------------------------------------
* System include files
* ---------------------------------------------------------------------------
*/
#include "LPC23xx.h"
#include "types.h"
/* FreeRTOS includes */
#include "FreeRTOS.h"
/* ---------------------------------------------------------------------------
* Application include files
* ---------------------------------------------------------------------------
*/
#include "dac.h"
#include "sys_config.h"
#include "ssp0.h"
#include "dio.h"
#include "calibrateaio.h"
#include "ElecStatusCache.h"
/* ---------------------------------------------------------------------------
* Local constant and macro definitions
* ---------------------------------------------------------------------------
*/
#define DAC_CS_DIR_REG FIO1DIR
#define DAC_CS_SET_REG FIO1SET
#define DAC_CS_CLR_REG FIO1CLR
#define DAC1_CS_BIT BIT( 21 )
#define DAC2_CS_BIT BIT( 22 )
// \MARK NEW PINSETTINGS FOR TESTER (2)
#if (PINSET_TESTER == 2)
#define DAC3_CS_BIT BIT( 19)
#endif
// \MARK NEW PINSETTINGS FOR TESTER (2)
#if (PINSET_TESTER == 2)
#define DACS_CS_BITS (DAC1_CS_BIT | DAC2_CS_BIT | DAC3_CS_BIT)
#else
#define DACS_CS_BITS (DAC1_CS_BIT | DAC2_CS_BIT)
#endif
#define DAC1_CS_DISABLE (DAC_CS_SET_REG = DAC1_CS_BIT)
#define DAC1_CS_ENABLE (DAC_CS_CLR_REG = DAC1_CS_BIT)
#define DAC2_CS_DISABLE (DAC_CS_SET_REG = DAC2_CS_BIT)
#define DAC2_CS_ENABLE (DAC_CS_CLR_REG = DAC2_CS_BIT)
// \MARK NEW PINSETTINGS FOR TESTER (2)
#if (PINSET_TESTER == 2)
#define DAC3_CS_DISABLE (DAC_CS_SET_REG = DAC3_CS_BIT)
#define DAC3_CS_ENABLE (DAC_CS_CLR_REG = DAC3_CS_BIT)
#endif
// \MARK NEW PINSETTINGS FOR TESTER (2)
#if (PINSET_TESTER == 2)
#define DAC_CV_DIR_REG FIO4DIR
#define DAC_CV_SET_REG FIO4SET
#define DAC_CV_CLR_REG FIO4CLR
#else
#define DAC_CV_DIR_REG FIO3DIR
#define DAC_CV_SET_REG FIO3SET
#define DAC_CV_CLR_REG FIO3CLR
#endif
// \MARK NEW PINSETTINGS FOR TESTER (2)
#if (PINSET_TESTER == 2)
#define CURRENT_VOLTAGE_BITS (0x0000003F)
#else
#define CURRENT_VOLTAGE_BITS (0x07800000)
#endif
// \MARK NEW PINSETTINGS FOR TESTER (2)
#if (PINSET_TESTER == 2)
#define DAC_MUX_DIR FIO3DIR
#define DAC_MUX_SET FIO3SET
#define DAC_MUX_CLR FIO3CLR
#define DAC_MUX_BIT BIT(24)
#define DAC_MUX_EN (DAC_MUX_SET = DAC_MUX_BIT)
#define DAC_MUX_DS (DAC_MUX_CLR = DAC_MUX_BIT)
#endif
#define spiWrite ssp0Write
#define spiRead ssp0Read
#define spiWriteBuffer ssp0WriteBuffer
#define spiReadBuffer ssp0ReadBuffer
#define spiTakeBus ssp0TakeBus
#define spiReleaseBus ssp0ReleaseBus
#define DAC_CHANNEL_A (0x8000)
#define DAC_CHANNEL_B (0x0000)
#define DAC_OUTPUT_BUFFERED (0x4000)
#define DAC_OUTPUT_UNBUFFERED (0x0000)
#define DAC_OUTPUT_GAIN_1x (0x2000)
#define DAC_OUTPUT_GAIN_2x (0x0000)
#define DAC_SHDN_OPDC (0x1000)
#define DAC_SHDN_DISABLED (0x0000)
#define DAC_MAX_SETTING (4095)
#define DAC_MAX_CURRENT (20000)
#define DAC_MAX_VOLTAGE (10000)
/* ---------------------------------------------------------------------------
* Global variable definitions
* ---------------------------------------------------------------------------
*/
UINT16 OutputVoltageCorrection[maxDAC_Channels];
UINT16 OutputCurrentCorrection[maxDAC_Channels];
/* ---------------------------------------------------------------------------
* Local variable definitions
* ---------------------------------------------------------------------------
*/
// \MARK NEW PINSETTINGS FOR TESTER (2)
#if (PINSET_TESTER == 2)
t_dac_mode channelModes[maxDAC_Channels] =
{
dacCURRENT,
dacCURRENT,
dacCURRENT,
dacCURRENT,
dacCURRENT,
dacCURRENT
};
UINT16 channelSetting[maxDAC_Channels] =
{
0,
0,
0,
0,
0,
0
};
#else
t_dac_mode channelModes[maxDAC_Channels] =
{
dacCURRENT,
dacCURRENT,
dacCURRENT,
dacCURRENT
};
UINT16 channelSetting[maxDAC_Channels] =
{
0,
0,
0,
0
};
#endif
/* ---------------------------------------------------------------------------
* Local function definitions
* ---------------------------------------------------------------------------
*/
void dacInit (void)
{
DAC_CV_DIR_REG |= CURRENT_VOLTAGE_BITS;
DAC_CV_CLR_REG = CURRENT_VOLTAGE_BITS; // Default all bits to current
DAC_CS_DIR_REG |= DACS_CS_BITS;
DAC1_CS_DISABLE;
DAC2_CS_DISABLE;
// \MARK NEW PINSETTINGS FOR TESTER (2)
#if (PINSET_TESTER == 2)
DAC3_CS_DISABLE;
DAC_MUX_DIR |= DAC_MUX_BIT;
#endif
loadCorrectionValue(OutputVoltageCorrection, VoltageOutput);
loadCorrectionValue(OutputCurrentCorrection, CurrentOutput);
}
void dac_MuxEn (BOOLEAN mode)
{
// \MARK NEW PINSETTINGS FOR TESTER (2)
#if (PINSET_TESTER == 2)
if (mode == TRUE)
{
DAC_MUX_EN; /* Set MUX to ExtensionBoard */
}
else
{
DAC_MUX_DS; /* Set MUX to MainBoard */
}
#endif
}
BOOLEAN dac_MuxRB (void)
{
// \MARK NEW PINSETTINGS FOR TESTER (2)
#if (PINSET_TESTER == 2)
if (DAC_MUX_SET & DAC_MUX_BIT)
{
/* Mux is switched to ExtensionBoard */
return (TRUE);
}
else
{
/* Mux is switched to MainBoard */
return (FALSE);
}
#endif
}
/** \brief Select output mode (Voltage or Current) of a certain channel. */
void dacMode (
UINT8 channel, /*< 0..5 = valid */
t_dac_mode mode
)
{
UINT32 channelMask;
if (channel >= maxDAC_Channels ) return; // Channel doesn't exist
channelModes[channel] = mode;
// \MARK NEW PINSETTINGS FOR TESTER (2)
#if (PINSET_TESTER == 2)
channelMask = BIT( (UINT32)(channel) ); /* channel bit + offset */
#else
channelMask = BIT( (UINT32)(channel + 23) ); /* channel bit + offset */
#endif
if (mode == dacVOLTAGE)
{
DAC_CV_SET_REG = channelMask;
}
else
{
DAC_CV_CLR_REG = channelMask;
}
}
/** \brief Write analog value in mV or uA depending on dacMode */
void dacWrite(
UINT8 device, /**< 0 = Self, valid */
UINT8 channel, /**< 0..5 = valid */
UINT16 value /*< VOLTAGE: 0..10000[mV], CURRENT: 0..20000[uA] */
)
{
UINT16 spiCommand;
UINT32 dacSetting;
UINT32 divideValue;
if (device == 0)
{
if (channel >= maxDAC_Channels ) return; // Channel doesn't exist
channelSetting[ channel] = value;
// Assemble DAC command
spiCommand = DAC_OUTPUT_UNBUFFERED | DAC_OUTPUT_GAIN_1x | DAC_SHDN_OPDC;
spiCommand |= ( (channel & 0x01) == 0x01 ? DAC_CHANNEL_B : DAC_CHANNEL_A);
divideValue = (channelModes[channel] == dacVOLTAGE ? DAC_MAX_VOLTAGE : DAC_MAX_CURRENT);
// dacSetting = ((UINT32)value * DAC_MAX_SETTING) / divideValue;
if (channelModes[channel] == dacVOLTAGE)
{
dacSetting = (UINT32)value * OutputVoltageCorrection[channel] / divideValue;
}
else
{
dacSetting = (UINT32)value * OutputCurrentCorrection[channel] / divideValue;
}
if (dacSetting > DAC_MAX_SETTING) return;
spiCommand |= (UINT16) dacSetting;
/* devide channel by 2 on send the SPI command with WriteDacCommand
* channel 0-1: dac0
* channel 2-3: dac1
* channel 4-5: dac2 */
WriteDacCommand( spiCommand, (channel >> 1));
}
else
{
bpecWriteDacValue(device, channel, value);
}
}
UINT16 dacReadBack (
UINT8 device, /**< 0 = Self, 1..32 = Remote device */
UINT8 channel /**< 0..3 = valid, 8..255 = future use */
)
{
if (device == 0)
{
if (channel >= maxDAC_Channels ) return 0; // Channel doesn't exist)
return channelSetting[ channel ];
}
else
{
return bpecDacReadBack(device, channel);
}
}
void WriteDacCommand( UINT16 spiCommand, UINT8 dacNr )
{
UINT8 spiCommandArray[2];
UINT8 spiResponse[2];
spiTakeBus();
{
// dacNr 0: DAC 0
// dacNr 1: DAC 1
// dacNr 2: DAC 2
// Enable correct ChipSelect
switch (dacNr)
{
case 0:
DAC1_CS_ENABLE;
break;
case 1:
DAC2_CS_ENABLE;
break;
// \MARK NEW PINSETTINGS FOR TESTER (2)
#if (PINSET_TESTER == 2)
case 2: DAC3_CS_ENABLE;
break;
#endif
}
// if (dacNr == 0)
// {
// DAC1_CS_ENABLE;
// } else
// {
// DAC2_CS_ENABLE;
// }
spiCommandArray[0] = (spiCommand >> 8) & 0xFF;
spiCommandArray[1] = spiCommand & 0xFF;
spiWriteBuffer( spiCommandArray, 2);
spiReadBuffer( spiResponse, 2 );
// dacNr 0: DAC 0
// dacNr 1: DAC 1
// dacNr 2: DAC 2
// Enable correct ChipSelect
switch (dacNr)
{
case 0:
DAC1_CS_DISABLE;
break;
case 1:
DAC2_CS_DISABLE;
break;
// \MARK NEW PINSETTINGS FOR TESTER (2)
#if (PINSET_TESTER == 2)
case 2:
DAC3_CS_DISABLE;
break;
#endif
}
// if (dacNr == 0)
// {
// DAC1_CS_DISABLE;
// } else
// {
// DAC2_CS_DISABLE;
// }
}
spiReleaseBus();
}
void dacModeAll (t_dac_mode mode)
{
dacMode(0, mode);
dacMode(1, mode);
dacMode(2, mode);
dacMode(3, mode);
// \MARK NEW PINSETTINGS FOR TESTER (2)
#if (PINSET_TESTER == 2)
dacMode(4, mode);
dacMode(5, mode);
#endif
}
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