Component: DAC (AD5662) (Analog Output)
| Author | Matrix TSL |
| Version | 1.0 |
| Category | Analog Output |
DAC (AD5662) component
16-bit external DAC connected to the microcontroller using SPI.
Detailed description
Overview
The AD5662 is a 3V/5V general purpose SPI compatible, high-resolution digital to analog converter (DAC), capable of generating a rail-to-rail voltage output.
With 16-Bit resolution, the AD5662 is capable of finely tuning the voltage output across 65,536 steps, with an individual step voltage of 5/65536 = 0.0000763 volts DC.
The AD5662 requires an external reference voltage to set the output range of the DAC.
Pin reference from the datasheet:
Circuit Diagram
Examples
This example reads a potentiometer that is connected across the supply voltage. The output from the DAC should mimic the voltage that's across ADC pin & GND.
Downloadable macro reference
|
OutputDAC |
| Outputs a value to the DAC, | |
 - UINT
|
Output |
| Range: 0-65535 / 0=0V / 65535=VCC | |
 - VOID
|
Return |
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|
Initialise |
| Initialise the SPI bus ready for communications, | |
| - VOID
|
Return |
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|
BuzzerOn |
| Switch On the Buzzer | |
| - VOID
|
Return |
|
|
BuzzerOnDelay |
| Switch the Buzzer on for a fixed amount of time | |
| - UINT
|
Time |
| Time in milliseconds to keep the buzzer on | |
| - VOID
|
Return |
|
|
WriteLEDs |
| Allows control of all 8-LEDs on the front of the Formula Flowcode. | |
 - BYTE
|
LED_Byte |
| - VOID
|
Return |
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|
Initialise |
| Starts up the formula flowcode PWM for motor control and performs the wait for button press | |
| - VOID
|
Return |
|
|
Initialise |
| The Init macro must be called once to initialise the Graphical LCD display before any other Graphical LCD component macros are called. | |
| - VOID
|
Return |
|
|
Initialise |
| The Init macro must be called once to initialise the Graphical LCD display before any other Graphical LCD component macros are called. | |
| - VOID
|
Return |
|
|
Initialise |
| The Init macro must be called once to initialise the Graphical LCD display before any other Graphical LCD component macros are called. | |
| - VOID
|
Return |
|
|
Initialise |
| The Init macro must be called once to initialise the Graphical LCD display before any other Graphical LCD component macros are called. | |
| - VOID
|
Return |
|
|
Initialise |
| Resets and initialises the Internet E-Block. It sets up the gateway address, subnet mask, device IP address and device MAC address as defined in the properties of the Flowcode component. This macro must be called before any other TCP_IP component macros | |
| - VOID
|
Return |
|
|
Initialise |
| Resets and initialises the Internet E-Block. It sets up the gateway address, subnet mask, device IP address and device MAC address as defined in the properties of the Flowcode component. This macro must be called before any other TCP_IP component macros | |
| - VOID
|
Return |
|
|
Initialise |
| Resets and initialises the Internet E-Block. It sets up the gateway address, subnet mask, device IP address and device MAC address as defined in the properties of the Flowcode component. This macro must be called before any other TCP_IP component macros | |
| - VOID
|
Return |
|
|
MODPMSHAPE |
| Sets PM waveform shape to; 0 = SINE, 1 = SQUARE, 2 = RAMPUP, 3 = RAMPDN, 4 = TRIANG, 5 = NOISE, 6 = DC, 7 = SINC, 8 = EXPRISE, 9 = LOGRISE, 10 = ARB1, 11 = ARB2, 12 = ARB3, 13= ARB4. | |
| - BYTE
|
Shape |
| Sets PM waveform shape (1 = SINE, 2 = SQUARE, 3 = RAMPUP, 4 = RAMPDN, 5 = TRIANG, 6 = NOISE, 7 = DC, 8 = SINC, 9 = EXPRISE, 10 = LOGRISE, 11 = ARB1, 12 = ARB2, 13 = ARB3, 14= ARB4). | |
| - VOID
|
Return |
|
|
ARB4 |
| Loads the binary-data to an existing arbitrary waveform memory location ARB4. | |
| - BYTE
|
Waveform |
| - VOID
|
Return |
|
|
CLKSRRet |
| Returns the clock source <INT> or <EXT>. | |
| [[File:]] - | Return |
|
|
MODPMDEV |
| Sets PM waveform deviation to <nrf> degrees. (Lower limit: -360° - Upper limit: 360°). | |
| [[File:]] - | Degrees |
| Sets PM waveform deviation in degrees (-360 - 360). | |
| - VOID
|
Return |
|
|
MSTLOCK |
| Sends signal to SLAVE generator to get synchronised | |
| - VOID
|
Return |
|
|
HILVL |
| Sets the amplitude-high-level to <nrf> Volts. (Lower limit: -0.490 V - Upper limit: 5.000 V). | |
| [[File:]] - | HighLevel |
| Sets the amplitude-high-level in Volts(V) (-0.490 V - 5.000 V). | |
| - VOID
|
Return |
|
|
ARB3 |
| Loads the binary-data to an existing arbitrary waveform memory location ARB3. | |
| - UINT
|
Waveform |
| - VOID
|
Return |
|
|
WAVE |
| Sets the waveform type. 0 = SINE, 1 = SQUARE, 2 = RAMP, 3 = TRIANG, 4 = PULSE, 5 = NOISE, 6 = ARB | |
| - BYTE
|
WaveType |
| 0 = SINE, 1 = SQUARE, 2 = RAMP, 3 = TRIANG, 4 = PULSE, 5 = NOISE, 6 = ARB. | |
| - VOID
|
Return |
|
|
CALADJ |
| Adjust the selected calibration value by <nrf> (Lower limit: -100 - Upper limit: 100). | |
| [[File:]] - | Calibrate |
| Adjust the selected calibration value (-100 - 100). | |
| - VOID
|
Return |
|
|
STBRet |
| Returns the value of the Status Byte Register in <nr1> numeric format. | |
| - BYTE
|
Return |
|
|
ARB2 |
| Loads the binary-data to an existing arbitrary waveform memory location ARB2. | |
| - UINT
|
Waveform |
| - VOID
|
Return |
|
|
EERRet |
| Query and clear execution error number register. | |
 - STRING
|
Return |
|
|
MODFMSRC |
| Sets FM waveform source to; 0 INT, 1 = EXT. | |
| [[File:]] - | Source |
| Sets FM waveform source (0 = INT, 1 = EXT). | |
| - VOID
|
Return |
|
|
MODAMFREQ |
| Sets AM waveform frequency to <nrf> Hz. (Lower limit: 1uHz - Upper limit: 20kHz). | |
| [[File:]] - | Frequency |
| Sets AM waveform frequency in Hertz(Hz) (1uHz - 20kHz). | |
| - VOID
|
Return |
|
|
ESE |
| Sets the Standard Event Status Enable Register to the value of <nrf>. | |
| - BYTE
|
Value |
| Value of register 0-255 | |
| - VOID
|
Return |
|
|
ARB1 |
| Loads the binary-data to an existing arbitrary waveform memory location ARB1. | |
| - UINT
|
Waveform |
| 16 Bit binary number for arbitrary waveform. | |
| - VOID
|
Return |
|
|
ARB4DEFRet |
| Returns user specified waveform name, waveform pint interpolation state and waveform length of ARB4. | |
| - STRING
|
Return |
|
|
CLS |
| Clears status byte register of the interface. | |
| - VOID
|
Return |
|
|
MSTRELOCK |
| Resynchronises the two generators in MASTER-SLAVE mode. | |
| - VOID
|
Return |
|
|
NOISLVL |
| Sets the output noise level to <nr1> %. (Lower limit: 0% - Upper limit: 50%) | |
| - BYTE
|
Percent |
| Sets the output noise level in percent. (0 - 50) | |
| - VOID
|
Return |
|
|
LOCKMODE |
| Sets the synchronising mode to; 0 = MASTER, 1 = SLAVE, 2 = INDEP. | |
| - BYTE
|
Mode |
| Sets the synchronising mode (0 = MASTER, 1 = SLAVE, 2 = INDEP). | |
| - VOID
|
Return |
|
|
ADDRESSRet |
| Returns the instruments address | |
| [[File:]] - | Return |
|
|
MODPMSRC |
| Sets PM waveform source to; 0 INT, 1 = EXT. | |
| [[File:]] - | Source |
| Sets PM waveform source (0 = INT, 1 = EXT). | |
| - VOID
|
Return |
|
|
MODPWMSRC |
| Sets PWM waveform source to; 0 = INT, 1 = EXT. | |
| [[File:]] - | Source |
| Sets PWM waveform source (0 = INT, 1 = EXT). | |
| - VOID
|
Return |
|
|
MOD |
| Sets modulation to; 0 = OFF, 1 = AM, 2 = FM, 3 = PM, 4 = FSK, 5 = PWM. | |
| - BYTE
|
Modulation |
| Sets modulation (0 = OFF, 1 = AM, 2 = FM, 3 = PM, 4 = FSK, 5 = PWM). | |
| - VOID
|
Return |
|
|
ISTRet |
| Returns IST local message as defined by IEEE Std. 488.2. The syntax of the response is 0<rmt>, if the local message is false, or 1<rmt>, if the local message is true. | |
| [[File:]] - | Return |
|
|
LRNRet |
| Returns the complete setup of the instrument as a binary data block | |
| [[File:]] - | Return |
|
|
OPCRet |
| Query Operation Complete status. The response is always 1<rmt> and will be available immediately the command is executed because all commands are sequential. | |
| [[File:]] - | Return |
|
|
SWPTYPE |
| Sets the sweep type to; 0 = LINUP, 1 = LINDN, 2 = LINUPDN, 3 = LINDNUP, 4 = LOGUP, 5 = LOGDN, 6 = LOGUPDN, 7 = LOGDNUP. | |
| - BYTE
|
Type |
| Set the sweep type (0 = LINUP, 1 = LINDN, 2 = LINUPDN, 3 = LINDNUP, 4 = LOGUP, 5 = LOGDN, 6 = LOGUPDN, 7 = LOGDNUP). | |
| - VOID
|
Return |
|
|
PULSRANGE |
| Sets PWM waveform source to <1>, <2> or <3>; 1 = 1, 2 = 2, 3 = 3. | |
| - BYTE
|
Range |
| Sets the pulse rise and fall range. (1, 2 or 3) | |
| - VOID
|
Return |
|
|
TSTRet |
| The generator has no self test capability and the response is always 0 <rmt>. | |
| [[File:]] - | Return |
|
|
BSTTRGPOL |
| Sets the burst trigger slope to; 0 = POS, 1 = NEG. | |
| [[File:]] - | Slope |
| Set the burst trigger slope (0 = POS, 1 = NEG). | |
| - VOID
|
Return |
|
|
ARB3Ret |
| Returns the binary-data from an existing abbitrary wavefrom memory location. | |
| - UINT
|
Return |
|
|
BSTPHASE |
| Sets the burst phase to <nrf> degrees. (Lower limit: -360 - Upper limit: 360) | |
| [[File:]] - | Degrees |
| Sets the burst phase in degrees (-360 - 360) | |
| - VOID
|
Return |
|
|
IDNRet |
| Returns the instrument identification. The IDN is saved to the variable passed from the function 'ReturnIDN'. The return parameter is TRUE when the IDN is successfully returned. | |
| - STRING
|
ReturnIDN |
| - STRING
|
Return |
|
|
SWPTRGPER |
| Sets the sweep trigger period to <nrf> seconds | |
| [[File:]] - | Seconds |
| Set the sweep trigger period in seconds. | |
| - VOID
|
Return |
|
|
PULSDLY |
| Sets the waveform delay to <nrf> sec | |
| [[File:]] - | Sec |
| - VOID
|
Return |
|
|
Initialise |
| Opens the COM port ready for communications. | |
| - VOID
|
Return |
Property reference
|
Properties |
|
Channel |
| SPI Channel selector | |
|
|
Prescale |
| Prescale option selector | |
|
MOSI |
| SPI Data Out Pin SDO - Also Known as Master Out Slave In (MOSI) when used in Master mode. | |
|
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MISO |
| SPI Data In Pin SDI - Also Known as Master In Slave Out (MISO) when used in Master mode. | |
|
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CLK |
| SPI Clock Pin CLK - The Clock signal is driven by the SPI master. | |
|
|
CS / SS |
| Chip Select / Slave Select Pin Master Mode: General purpose output pin used to select the remote SPI device. Slave Mode: Hardware chip select pin input used to select the SPI device. | |
|
Console Data |
| Selects if the console data is automatically generated or not | |
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Scope Traces |
| Selects if the scope traces are automatically generated or not | |
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API |
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Connections |
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Simulations |
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Data Recorder Trace |
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Simulate Comms |