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F2807x/F2837xD/F2837xS/F28004x/F28003x/F2838x DAC

Configures the DAC to generate an analog output on the specified DAC channel A/B/C (12-bit)

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  • F2807x/F2837xD/F2837xS/F28004x/F28003x/F2838x DAC block

Libraries:
C2000 Microcontroller Blockset / F28003x
C2000 Microcontroller Blockset / F28004x
C2000 Microcontroller Blockset / F2807x
C2000 Microcontroller Blockset / F2837xD
C2000 Microcontroller Blockset / F2837xS
C2000 Microcontroller Blockset / F2838x / C28x
C2000 Microcontroller Blockset / F28p65x
C2000 Microcontroller Blockset / F28p55x

Description

Generate an analog output on the specified DAC channel A, B, or C for F2837x/F2807x/F28004x and F2838x/C28x processors. The block accepts a 12–bit value as an input in the range 0 to 4095. You can saturate a value higher than 4095 to 4095 with the Saturate on input outflow option.

The output pins of this block are multiplexed with the ADC block input. When you use a DAC block in your model, the corresponding channels of the ADC cannot be used as input. If used, the ADC samples the DAC output.

The pins that are shared between ADC and DAC are DACOUTA/ADCINA0, DACOUTB/ADCINA1, and DACOUTC/ADCINB1. The input to the DAC block can be double, float, int, and uint. The block typecasts the input to uint16.

Ports

Input

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The input port through which the block accepts the digital input value to convert it to analog signal.

Data Types: int8 | uint8 | int16 | uint16 | int32 | uint32 | double

Parameters

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Enter the DAC channel on which to generate the analog signal. The DAC channels that you can select are A, B, or C.

Select this check box to saturate the input value to 4095 when there is an input value is higher than 4095.

Compatibility Considerations

Earlier to R2021b, when Saturate on input overflow (>4095) parameter is deselected, an input value to the DAC greater than 65536 results the output to saturate at 65535. Starting R2021b, the output wraps around i.e., for an input of 65580, results in output 44 (65580-65536).

Version History

Introduced in R2016b

See Also

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