Component: HBRIDGE (CAL) (Misc)
From Flowcode Help
Jump to navigationJump to search| Author | Matrix TSL |
| Version | 2.1 |
| Category | Misc |
Contents
HBRIDGE component
CAL = Code Abstraction Layer - Allows one code base to run on a wide range of chips. A low level implementation giving direct access to the H-Bridge peripheral. Currently only supports compatible 8-bit PIC devices.
Component Source Code
Please click here to download the component source project: FC_Comp_Source_temp/HBRIDGE.fcfx
Please click here to view the component source code (Beta): FC_Comp_Source_temp/HBRIDGE.fcfx
Detailed description
Half Bridge Application
A Half Bridge type output has two output signals A and B.
Full Bridge Application
Full Bridge type output has four output signals A, B, C and D.
Examples
A simple proof of concept example to drive a full bridge output with varying speed and direction.
Macro reference
Disable
|
Disable |
| Disable this PWM Channel | |
 - VOID
|
Return |
Enable
|
|
Enable |
| Enable this PWM Channel | |
| - VOID
|
Return |
GetList
|
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GetList |
| Returns CHANNEL or PRESCALE list from the FCD and updates the internal property | |
 - STRING
|
Name |
| - STRING
|
Return |
GetValue
|
|
GetValue |
| Returns Named property Value | |
| - STRING
|
Name |
| - STRING
|
Return |
SetDirection
|
|
SetDirection |
| Set the motor direction. | |
 - BYTE
|
direction |
| 0 = Forwards, 1 = Reverse | |
| - VOID
|
Return |
SetSpeed
|
|
SetSpeed |
| Sets the motor speed by varying the PWM duty. | |
 - UINT
|
duty |
| Duty value 0 - 1023 | |
| - VOID
|
Return |
SetValue
|
|
SetValue |
| Sets the Value of the property PERIOD, PRESCALE or CHANNEL (if CHANNEL also updates the PORT from FCD) | |
| - STRING
|
Name |
| - STRING
|
Value |
| - VOID
|
Return |
Property reference
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Properties |
|
Enable |
|
Settings |
|
Channel |
| PWM Channel selector | |
|
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Mode |
| Selects between full bridge and half bridge output modes. Some H-Bridge channels may only have one mode in which case the property selector will only show the available mode. | |
|
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Polarity |
| Selects the active output voltage. Active high - Pins will be low when inactive and high when active. Active Low- Pins will be high when inactive and low when active. | |
|
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Timer |
| Timer associated with PWM to drive the output. Warning - All PWM channels linked to the same timer will share the same period and prescaler settings. | |
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Prescaler Divide |
| Prescaler Divider value | |
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Period Register |
| PWM Period Register value | |
|
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Dead Band |
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Rising Bits |
| Number of bits assigned to the rising edge dead band counter. Auto populated based on selected target chip. | |
|
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Falling Bits |
| Number of bits assigned to the falling edge dead band counter. Auto populated based on selected target chip. | |
|
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Rising Count |
| Number of cycles to wait after a falling edge and before a rising edge. | |
|
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Falling Count |
| Number of cycles to wait after a rising edge and before a falling edge. | |
|
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Connections |
|
A Pin |
| Output Pin A | |
|
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B Pin |
| Output Pin B | |
|
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C Pin |
| Output Pin C | |
|
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D Pin |
| Output Pin D | |
|
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A Remap Pin |
| Remap Pin A - Specifies the pin used for the A output. Only available on devices supporting remappable hardware pins. | |
|
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B Remap Pin |
| Remap Pin B - Specifies the pin used for the B output. Only available on devices supporting remappable hardware pins. | |
|
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C Remap Pin |
| Remap Pin C - Specifies the pin used for the C output. Only available on devices supporting remappable hardware pins. | |
|
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D Remap Pin |
| Remap Pin D - Specifies the pin used for the D output. Only available on devices supporting remappable hardware pins. | |
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Calculations |
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Clock Speed |
| Target Microcontroller Clock Speed. | |
|
Period (uS) |
| Calculated length of PWM period in micro seconds. | |
|
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Frequency (KHz) |
| Calculated PWM output frequency in KHz. | |
|
|
Frequency (Hz) |
| Calculated PWM output frequency in Hz. | |
