Component: Math (DSP)

Author	Matrix Ltd
Version	1.2
Category	DSP

Math component

Component to combine together two DSP buffers into one an index at a time. Functions include: Add, Average, Difference, Max, Min, Subtract

Detailed description

No detailed description exists yet for this component

Examples

Here is a example file which generates a sine wave and a triangle wave and then uses the DSP sum component to merge together the two signals. DSPSum Here is the kind of waveform you can expect to see using the scope window when adding the two signals together.

Here is the kind of waveform you can expect to see using the scope window when subtracting the two readings.

Here is the kind of waveform you can expect to see using the scope window when taking the maximum of the two signals.

Here is the kind of waveform you can expect to see using the scope window when taking the minimum of the two signals.

Here is the kind of waveform you can expect to see using the scope window when taking the average between the two signals.

Here is the kind of waveform you can expect to see using the scope window when taking the difference between the two signals.

Downloadable macro reference

	Calculate
Performs a single calculation on the two input buffers and provides a result into the output buffer
- VOID	Return

	CalculateArray
Performs a single calculation on the two input buffers and provides a result into the output buffer
- VOID	Return

	ReadPeakArray
Returns the highest value from the last "Decay" number of buffers.
- UINT	Return

	ReadAverageArray
Returns the average from the last "Decay" number of buffers.
- UINT	Return

	ReadPeak
Returns the highest value from the last "Decay" number of index locations.
[[File:]] -	Return

	ResetRecords
Allows the peak and trough to be reset back to default values.
[[File:]] -	ResetPeak
[[File:]] -	ResetTrough
- VOID	Return

	GetReplyByte
Reads a single byte from the last reply. Each reply contains 4 bytes starting with the command code.
- BYTE	Index
Range: 0-3 / 0=Command, 1=Feedback, 2=Data MSB, 3=Data LSB
- BYTE	Return

	SkipTrack
Jump to the next or previous track
[[File:]] -	Direction
0=Next, 1=Previous
- VOID	Return

	PlayTrack
Plays track from the selected folder. MP3 & Advert folder track numbers should be 4 characters long e.g. 0001 any name.mp3, Other folder track numbers should be 3 characters long e.g. 001 Any name.mp3, Root the Track played in placement order.
- BYTE	Directory
0=Root, 1=Folder "01" - 99=Folder "99", 100=MP3, 101=Advert
- UINT	Track
Track number 1="001*.MP3" / "0001*.MP3", 100="100*.MP3" / "0100*.MP3"
- VOID	Return

	Initialise
Sets up the UART and does some housekeeping. Must be called before calling any of the other component macros.
- VOID	Return

	ReadAnalogAsInt
Reads one of the analogue components as an Integer value
- BYTE	Channel
0 = LDR, 1 = POT
[[File:]] -	Return

	RemapCharacter
Assigns a remap character allowing the PrintString function to automatically swap between pre-defined characters. The characters can be custom (in the range 0-9) or can point to an existing character in the LCD character map.
- BYTE	RemapIdx
Remap Index, Range: 0 to (Remap Characters - 1)
- BYTE	SearchCharacter
Character to look for a replace
- BYTE	ReplacementCharacter
New character value to use in place of the search character.
- VOID	Return

	Start
Startup routine required by the hardware device. Automatically clears the display after initialising.
- VOID	Return

	SetLEDState
Sets the state of a single LED
- BYTE	Port
0 = PortA, 1 = PortB
- BYTE	LED
0 = LED0, 7 = LED7
- BYTE	State
- VOID	Return

	Initialise
Must be called before any other CAN component macros to enable and initialise the CAN peripheral.
- VOID	Return

Property reference

	Properties
	Connect To A
DSP component with output buffer to collect our A data from.
	Connect To B
DSP component with output buffer to collect our B data from.
	Buffer Size
Number of individual elements the buffer can store, default 1.
	Buffer Type
Sets the buffer data type.
	Sum Type
Defines the type of calculation performed on the two input buffers to obtain the output value. Data shown in brackets indicates operation ? = a decision followed by the true value and then the false value seperated with a colon.
	Connections
	Simulations