Delphi/Lazarus - Industrial Counter Bricklet

This is the description of the Delphi/Lazarus API bindings for the Industrial Counter Bricklet. General information and technical specifications for the Industrial Counter Bricklet are summarized in its hardware description.

An installation guide for the Delphi/Lazarus API bindings is part of their general description.

Examples

The example code below is Public Domain (CC0 1.0).

Simple

Download (ExampleSimple.pas)

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program ExampleSimple;

{$ifdef MSWINDOWS}{$apptype CONSOLE}{$endif}
{$ifdef FPC}{$mode OBJFPC}{$H+}{$endif}

uses
  SysUtils, IPConnection, BrickletIndustrialCounter;

type
  TExample = class
  private
    ipcon: TIPConnection;
    ic: TBrickletIndustrialCounter;
  public
    procedure Execute;
  end;

const
  HOST = 'localhost';
  PORT = 4223;
  UID = 'XYZ'; { Change XYZ to the UID of your Industrial Counter Bricklet }

var
  e: TExample;

procedure TExample.Execute;
var counter: int64; dutyCycle: word; period: uint64; frequency: longword; value: boolean;
begin
  { Create IP connection }
  ipcon := TIPConnection.Create;

  { Create device object }
  ic := TBrickletIndustrialCounter.Create(UID, ipcon);

  { Connect to brickd }
  ipcon.Connect(HOST, PORT);
  { Don't use device before ipcon is connected }

  { Get current counter from channel 0 }
  counter := ic.GetCounter(BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_0);
  WriteLn(Format('Counter (Channel 0): %d', [counter]));

  { Get current signal data from channel 0 }
  ic.GetSignalData(BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_0, dutyCycle, period, frequency,
                   value);

  WriteLn(Format('Duty Cycle (Channel 0): %f %%', [dutyCycle/100.0]));
  WriteLn(Format('Period (Channel 0): %d ns', [period]));
  WriteLn(Format('Frequency (Channel 0): %f Hz', [frequency/1000.0]));
  WriteLn(Format('Value (Channel 0): %d', [value]));

  WriteLn('Press key to exit');
  ReadLn;
  ipcon.Destroy; { Calls ipcon.Disconnect internally }
end;

begin
  e := TExample.Create;
  e.Execute;
  e.Destroy;
end.

API

Since Delphi does not support multiple return values directly, we use the out keyword to return multiple values from a function.

All functions and procedures listed below are thread-safe.

Basic Functions

constructor TBrickletIndustrialCounter.Create(const uid: string; ipcon: TIPConnection)

Creates an object with the unique device ID uid:

industrialCounter := TBrickletIndustrialCounter.Create('YOUR_DEVICE_UID', ipcon);

This object can then be used after the IP Connection is connected (see examples above).

function TBrickletIndustrialCounter.GetCounter(const channel: byte): int64

Returns the current counter value for the given channel.

The following constants are available for this function:

  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_0 = 0
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_1 = 1
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_2 = 2
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_3 = 3
function TBrickletIndustrialCounter.GetAllCounter: array [0..3] of int64

Returns the current counter values for all four channels.

procedure TBrickletIndustrialCounter.SetCounter(const channel: byte; const counter: int64)

Sets the counter value for the given channel.

The default value for the counters on startup is 0.

The following constants are available for this function:

  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_0 = 0
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_1 = 1
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_2 = 2
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_3 = 3
procedure TBrickletIndustrialCounter.SetAllCounter(const counter: array [0..3] of int64)

Sets the counter values for all four channels.

The default value for the counters on startup is 0.

procedure TBrickletIndustrialCounter.GetSignalData(const channel: byte; out dutyCycle: word; out period: uint64; out frequency: longword; out value: boolean)

Returns the signal data (duty cycle, period, frequency and value) for the given channel.

The units are:

  • Duty Cycle: 1/100 %
  • Period: ns
  • Frequency: mHz (1/1000 Hz)
  • Value: true = high, false = low

The following constants are available for this function:

  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_0 = 0
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_1 = 1
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_2 = 2
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_3 = 3
procedure TBrickletIndustrialCounter.GetAllSignalData(out dutyCycle: array [0..3] of word; out period: array [0..3] of uint64; out frequency: array [0..3] of longword; out value: array [0..3] of boolean)

Returns the signal data (duty cycle, period, frequency and value) for all four channels.

The units are:

  • Duty Cycle: 1/100 %
  • Period: ns
  • Frequency: mHz (1/1000 Hz)
  • Value: true = high, false = low
procedure TBrickletIndustrialCounter.SetCounterActive(const channel: byte; const active: boolean)

Activates/deactivates the counter of the given channel.

true = activate, false = deactivate.

By default all channels are activated.

The following constants are available for this function:

  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_0 = 0
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_1 = 1
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_2 = 2
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_3 = 3
procedure TBrickletIndustrialCounter.SetAllCounterActive(const active: array [0..3] of boolean)

Activates/deactivates the counter of all four channels.

true = activate, false = deactivate.

By default all channels are activated.

function TBrickletIndustrialCounter.GetCounterActive(const channel: byte): boolean

Returns the activation state of the given channel.

true = activated, false = deactivated.

The following constants are available for this function:

  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_0 = 0
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_1 = 1
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_2 = 2
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_3 = 3
function TBrickletIndustrialCounter.GetAllCounterActive: array [0..3] of boolean

Returns the activation state of all four channels.

true = activated, false = deactivated.

procedure TBrickletIndustrialCounter.SetCounterConfiguration(const channel: byte; const countEdge: byte; const countDirection: byte; const dutyCyclePrescaler: byte; const frequencyIntegrationTime: byte)

Sets the counter configuration for the given channel.

  • Count Edge: Counter can count on rising, falling or both edges.
  • Count Direction: Counter can count up or down. You can also use another channel as direction input, see here for details.
  • Duty Cycle Prescaler: Sets a divider for the internal clock. See here for details.
  • Frequency Integration Time: Sets the integration time for the frequency measurement. See here for details.

The following constants are available for this function:

  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_0 = 0
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_1 = 1
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_2 = 2
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_3 = 3
  • BRICKLET_INDUSTRIAL_COUNTER_COUNT_EDGE_RISING = 0
  • BRICKLET_INDUSTRIAL_COUNTER_COUNT_EDGE_FALLING = 1
  • BRICKLET_INDUSTRIAL_COUNTER_COUNT_EDGE_BOTH = 2
  • BRICKLET_INDUSTRIAL_COUNTER_COUNT_DIRECTION_UP = 0
  • BRICKLET_INDUSTRIAL_COUNTER_COUNT_DIRECTION_DOWN = 1
  • BRICKLET_INDUSTRIAL_COUNTER_COUNT_DIRECTION_EXTERNAL_UP = 2
  • BRICKLET_INDUSTRIAL_COUNTER_COUNT_DIRECTION_EXTERNAL_DOWN = 3
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_1 = 0
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_2 = 1
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_4 = 2
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_8 = 3
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_16 = 4
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_32 = 5
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_64 = 6
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_128 = 7
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_256 = 8
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_512 = 9
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_1024 = 10
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_2048 = 11
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_4096 = 12
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_8192 = 13
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_16384 = 14
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_32768 = 15
  • BRICKLET_INDUSTRIAL_COUNTER_FREQUENCY_INTEGRATION_TIME_128_MS = 0
  • BRICKLET_INDUSTRIAL_COUNTER_FREQUENCY_INTEGRATION_TIME_256_MS = 1
  • BRICKLET_INDUSTRIAL_COUNTER_FREQUENCY_INTEGRATION_TIME_512_MS = 2
  • BRICKLET_INDUSTRIAL_COUNTER_FREQUENCY_INTEGRATION_TIME_1024_MS = 3
  • BRICKLET_INDUSTRIAL_COUNTER_FREQUENCY_INTEGRATION_TIME_2048_MS = 4
  • BRICKLET_INDUSTRIAL_COUNTER_FREQUENCY_INTEGRATION_TIME_4096_MS = 5
  • BRICKLET_INDUSTRIAL_COUNTER_FREQUENCY_INTEGRATION_TIME_8192_MS = 6
  • BRICKLET_INDUSTRIAL_COUNTER_FREQUENCY_INTEGRATION_TIME_16384_MS = 7
  • BRICKLET_INDUSTRIAL_COUNTER_FREQUENCY_INTEGRATION_TIME_32768_MS = 8
procedure TBrickletIndustrialCounter.GetCounterConfiguration(const channel: byte; out countEdge: byte; out countDirection: byte; out dutyCyclePrescaler: byte; out frequencyIntegrationTime: byte)

Returns the counter configuration as set by SetCounterConfiguration.

The following constants are available for this function:

  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_0 = 0
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_1 = 1
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_2 = 2
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_3 = 3
  • BRICKLET_INDUSTRIAL_COUNTER_COUNT_EDGE_RISING = 0
  • BRICKLET_INDUSTRIAL_COUNTER_COUNT_EDGE_FALLING = 1
  • BRICKLET_INDUSTRIAL_COUNTER_COUNT_EDGE_BOTH = 2
  • BRICKLET_INDUSTRIAL_COUNTER_COUNT_DIRECTION_UP = 0
  • BRICKLET_INDUSTRIAL_COUNTER_COUNT_DIRECTION_DOWN = 1
  • BRICKLET_INDUSTRIAL_COUNTER_COUNT_DIRECTION_EXTERNAL_UP = 2
  • BRICKLET_INDUSTRIAL_COUNTER_COUNT_DIRECTION_EXTERNAL_DOWN = 3
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_1 = 0
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_2 = 1
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_4 = 2
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_8 = 3
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_16 = 4
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_32 = 5
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_64 = 6
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_128 = 7
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_256 = 8
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_512 = 9
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_1024 = 10
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_2048 = 11
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_4096 = 12
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_8192 = 13
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_16384 = 14
  • BRICKLET_INDUSTRIAL_COUNTER_DUTY_CYCLE_PRESCALER_32768 = 15
  • BRICKLET_INDUSTRIAL_COUNTER_FREQUENCY_INTEGRATION_TIME_128_MS = 0
  • BRICKLET_INDUSTRIAL_COUNTER_FREQUENCY_INTEGRATION_TIME_256_MS = 1
  • BRICKLET_INDUSTRIAL_COUNTER_FREQUENCY_INTEGRATION_TIME_512_MS = 2
  • BRICKLET_INDUSTRIAL_COUNTER_FREQUENCY_INTEGRATION_TIME_1024_MS = 3
  • BRICKLET_INDUSTRIAL_COUNTER_FREQUENCY_INTEGRATION_TIME_2048_MS = 4
  • BRICKLET_INDUSTRIAL_COUNTER_FREQUENCY_INTEGRATION_TIME_4096_MS = 5
  • BRICKLET_INDUSTRIAL_COUNTER_FREQUENCY_INTEGRATION_TIME_8192_MS = 6
  • BRICKLET_INDUSTRIAL_COUNTER_FREQUENCY_INTEGRATION_TIME_16384_MS = 7
  • BRICKLET_INDUSTRIAL_COUNTER_FREQUENCY_INTEGRATION_TIME_32768_MS = 8
procedure TBrickletIndustrialCounter.SetChannelLEDConfig(const channel: byte; const config: byte)

Each channel has a corresponding LED. You can turn the LED off, on or show a heartbeat. You can also set the LED to "Channel Status". In this mode the LED is on if the channel is high and off otherwise.

By default all channel LEDs are configured as "Channel Status".

The following constants are available for this function:

  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_0 = 0
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_1 = 1
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_2 = 2
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_3 = 3
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_LED_CONFIG_OFF = 0
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_LED_CONFIG_ON = 1
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_LED_CONFIG_SHOW_HEARTBEAT = 2
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_LED_CONFIG_SHOW_CHANNEL_STATUS = 3
function TBrickletIndustrialCounter.GetChannelLEDConfig(const channel: byte): byte

Returns the channel LED configuration as set by SetChannelLEDConfig

The following constants are available for this function:

  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_0 = 0
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_1 = 1
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_2 = 2
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_3 = 3
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_LED_CONFIG_OFF = 0
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_LED_CONFIG_ON = 1
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_LED_CONFIG_SHOW_HEARTBEAT = 2
  • BRICKLET_INDUSTRIAL_COUNTER_CHANNEL_LED_CONFIG_SHOW_CHANNEL_STATUS = 3

Advanced Functions

function TBrickletIndustrialCounter.GetAPIVersion: array [0..2] of byte

Returns the version of the API definition (major, minor, revision) implemented by this API bindings. This is neither the release version of this API bindings nor does it tell you anything about the represented Brick or Bricklet.

function TBrickletIndustrialCounter.GetResponseExpected(const functionId: byte): boolean

Returns the response expected flag for the function specified by the function ID parameter. It is true if the function is expected to send a response, false otherwise.

For getter functions this is enabled by default and cannot be disabled, because those functions will always send a response. For callback configuration functions it is enabled by default too, but can be disabled by SetResponseExpected. For setter functions it is disabled by default and can be enabled.

Enabling the response expected flag for a setter function allows to detect timeouts and other error conditions calls of this setter as well. The device will then send a response for this purpose. If this flag is disabled for a setter function then no response is send and errors are silently ignored, because they cannot be detected.

See SetResponseExpected for the list of function ID constants available for this function.

procedure TBrickletIndustrialCounter.SetResponseExpected(const functionId: byte; const responseExpected: boolean)

Changes the response expected flag of the function specified by the function ID parameter. This flag can only be changed for setter (default value: false) and callback configuration functions (default value: true). For getter functions it is always enabled.

Enabling the response expected flag for a setter function allows to detect timeouts and other error conditions calls of this setter as well. The device will then send a response for this purpose. If this flag is disabled for a setter function then no response is send and errors are silently ignored, because they cannot be detected.

The following function ID constants are available for this function:

  • BRICKLET_INDUSTRIAL_COUNTER_FUNCTION_SET_COUNTER = 3
  • BRICKLET_INDUSTRIAL_COUNTER_FUNCTION_SET_ALL_COUNTER = 4
  • BRICKLET_INDUSTRIAL_COUNTER_FUNCTION_SET_COUNTER_ACTIVE = 7
  • BRICKLET_INDUSTRIAL_COUNTER_FUNCTION_SET_ALL_COUNTER_ACTIVE = 8
  • BRICKLET_INDUSTRIAL_COUNTER_FUNCTION_SET_COUNTER_CONFIGURATION = 11
  • BRICKLET_INDUSTRIAL_COUNTER_FUNCTION_SET_ALL_COUNTER_CALLBACK_CONFIGURATION = 13
  • BRICKLET_INDUSTRIAL_COUNTER_FUNCTION_SET_ALL_SIGNAL_DATA_CALLBACK_CONFIGURATION = 15
  • BRICKLET_INDUSTRIAL_COUNTER_FUNCTION_SET_CHANNEL_LED_CONFIG = 17
  • BRICKLET_INDUSTRIAL_COUNTER_FUNCTION_SET_WRITE_FIRMWARE_POINTER = 237
  • BRICKLET_INDUSTRIAL_COUNTER_FUNCTION_SET_STATUS_LED_CONFIG = 239
  • BRICKLET_INDUSTRIAL_COUNTER_FUNCTION_RESET = 243
  • BRICKLET_INDUSTRIAL_COUNTER_FUNCTION_WRITE_UID = 248
procedure TBrickletIndustrialCounter.SetResponseExpectedAll(const responseExpected: boolean)

Changes the response expected flag for all setter and callback configuration functions of this device at once.

procedure TBrickletIndustrialCounter.GetSPITFPErrorCount(out errorCountAckChecksum: longword; out errorCountMessageChecksum: longword; out errorCountFrame: longword; out errorCountOverflow: longword)

Returns the error count for the communication between Brick and Bricklet.

The errors are divided into

  • ACK checksum errors,
  • message checksum errors,
  • framing errors and
  • overflow errors.

The errors counts are for errors that occur on the Bricklet side. All Bricks have a similar function that returns the errors on the Brick side.

function TBrickletIndustrialCounter.SetBootloaderMode(const mode: byte): byte

Sets the bootloader mode and returns the status after the requested mode change was instigated.

You can change from bootloader mode to firmware mode and vice versa. A change from bootloader mode to firmware mode will only take place if the entry function, device identifier and CRC are present and correct.

This function is used by Brick Viewer during flashing. It should not be necessary to call it in a normal user program.

The following constants are available for this function:

  • BRICKLET_INDUSTRIAL_COUNTER_BOOTLOADER_MODE_BOOTLOADER = 0
  • BRICKLET_INDUSTRIAL_COUNTER_BOOTLOADER_MODE_FIRMWARE = 1
  • BRICKLET_INDUSTRIAL_COUNTER_BOOTLOADER_MODE_BOOTLOADER_WAIT_FOR_REBOOT = 2
  • BRICKLET_INDUSTRIAL_COUNTER_BOOTLOADER_MODE_FIRMWARE_WAIT_FOR_REBOOT = 3
  • BRICKLET_INDUSTRIAL_COUNTER_BOOTLOADER_MODE_FIRMWARE_WAIT_FOR_ERASE_AND_REBOOT = 4
  • BRICKLET_INDUSTRIAL_COUNTER_BOOTLOADER_STATUS_OK = 0
  • BRICKLET_INDUSTRIAL_COUNTER_BOOTLOADER_STATUS_INVALID_MODE = 1
  • BRICKLET_INDUSTRIAL_COUNTER_BOOTLOADER_STATUS_NO_CHANGE = 2
  • BRICKLET_INDUSTRIAL_COUNTER_BOOTLOADER_STATUS_ENTRY_FUNCTION_NOT_PRESENT = 3
  • BRICKLET_INDUSTRIAL_COUNTER_BOOTLOADER_STATUS_DEVICE_IDENTIFIER_INCORRECT = 4
  • BRICKLET_INDUSTRIAL_COUNTER_BOOTLOADER_STATUS_CRC_MISMATCH = 5
function TBrickletIndustrialCounter.GetBootloaderMode: byte

Returns the current bootloader mode, see SetBootloaderMode.

The following constants are available for this function:

  • BRICKLET_INDUSTRIAL_COUNTER_BOOTLOADER_MODE_BOOTLOADER = 0
  • BRICKLET_INDUSTRIAL_COUNTER_BOOTLOADER_MODE_FIRMWARE = 1
  • BRICKLET_INDUSTRIAL_COUNTER_BOOTLOADER_MODE_BOOTLOADER_WAIT_FOR_REBOOT = 2
  • BRICKLET_INDUSTRIAL_COUNTER_BOOTLOADER_MODE_FIRMWARE_WAIT_FOR_REBOOT = 3
  • BRICKLET_INDUSTRIAL_COUNTER_BOOTLOADER_MODE_FIRMWARE_WAIT_FOR_ERASE_AND_REBOOT = 4
procedure TBrickletIndustrialCounter.SetWriteFirmwarePointer(const pointer: longword)

Sets the firmware pointer for WriteFirmware. The pointer has to be increased by chunks of size 64. The data is written to flash every 4 chunks (which equals to one page of size 256).

This function is used by Brick Viewer during flashing. It should not be necessary to call it in a normal user program.

function TBrickletIndustrialCounter.WriteFirmware(const data: array [0..63] of byte): byte

Writes 64 Bytes of firmware at the position as written by SetWriteFirmwarePointer before. The firmware is written to flash every 4 chunks.

You can only write firmware in bootloader mode.

This function is used by Brick Viewer during flashing. It should not be necessary to call it in a normal user program.

procedure TBrickletIndustrialCounter.SetStatusLEDConfig(const config: byte)

Sets the status LED configuration. By default the LED shows communication traffic between Brick and Bricklet, it flickers once for every 10 received data packets.

You can also turn the LED permanently on/off or show a heartbeat.

If the Bricklet is in bootloader mode, the LED is will show heartbeat by default.

The following constants are available for this function:

  • BRICKLET_INDUSTRIAL_COUNTER_STATUS_LED_CONFIG_OFF = 0
  • BRICKLET_INDUSTRIAL_COUNTER_STATUS_LED_CONFIG_ON = 1
  • BRICKLET_INDUSTRIAL_COUNTER_STATUS_LED_CONFIG_SHOW_HEARTBEAT = 2
  • BRICKLET_INDUSTRIAL_COUNTER_STATUS_LED_CONFIG_SHOW_STATUS = 3
function TBrickletIndustrialCounter.GetStatusLEDConfig: byte

Returns the configuration as set by SetStatusLEDConfig

The following constants are available for this function:

  • BRICKLET_INDUSTRIAL_COUNTER_STATUS_LED_CONFIG_OFF = 0
  • BRICKLET_INDUSTRIAL_COUNTER_STATUS_LED_CONFIG_ON = 1
  • BRICKLET_INDUSTRIAL_COUNTER_STATUS_LED_CONFIG_SHOW_HEARTBEAT = 2
  • BRICKLET_INDUSTRIAL_COUNTER_STATUS_LED_CONFIG_SHOW_STATUS = 3
function TBrickletIndustrialCounter.GetChipTemperature: smallint

Returns the temperature in °C as measured inside the microcontroller. The value returned is not the ambient temperature!

The temperature is only proportional to the real temperature and it has bad accuracy. Practically it is only useful as an indicator for temperature changes.

procedure TBrickletIndustrialCounter.Reset

Calling this function will reset the Bricklet. All configurations will be lost.

After a reset you have to create new device objects, calling functions on the existing ones will result in undefined behavior!

procedure TBrickletIndustrialCounter.WriteUID(const uid: longword)

Writes a new UID into flash. If you want to set a new UID you have to decode the Base58 encoded UID string into an integer first.

We recommend that you use Brick Viewer to change the UID.

function TBrickletIndustrialCounter.ReadUID: longword

Returns the current UID as an integer. Encode as Base58 to get the usual string version.

procedure TBrickletIndustrialCounter.GetIdentity(out uid: string; out connectedUid: string; out position: char; out hardwareVersion: array [0..2] of byte; out firmwareVersion: array [0..2] of byte; out deviceIdentifier: word)

Returns the UID, the UID where the Bricklet is connected to, the position, the hardware and firmware version as well as the device identifier.

The position can be 'a', 'b', 'c' or 'd'.

The device identifier numbers can be found here. There is also a constant for the device identifier of this Bricklet.

Callback Configuration Functions

procedure TBrickletIndustrialCounter.SetAllCounterCallbackConfiguration(const period: longword; const valueHasToChange: boolean)

The period in ms is the period with which the OnAllCounter callback is triggered periodically. A value of 0 turns the callback off.

If the value has to change-parameter is set to true, the callback is only triggered after the value has changed. If the value didn't change within the period, the callback is triggered immediately on change.

If it is set to false, the callback is continuously triggered with the period, independent of the value.

The default value is (0, false).

procedure TBrickletIndustrialCounter.GetAllCounterCallbackConfiguration(out period: longword; out valueHasToChange: boolean)

Returns the callback configuration as set by SetAllCounterCallbackConfiguration.

procedure TBrickletIndustrialCounter.SetAllSignalDataCallbackConfiguration(const period: longword; const valueHasToChange: boolean)

The period in ms is the period with which the OnAllSignalData callback is triggered periodically. A value of 0 turns the callback off.

If the value has to change-parameter is set to true, the callback is only triggered after the value has changed. If the value didn't change within the period, the callback is triggered immediately on change.

If it is set to false, the callback is continuously triggered with the period, independent of the value.

The default value is (0, false).

procedure TBrickletIndustrialCounter.GetAllSignalDataCallbackConfiguration(out period: longword; out valueHasToChange: boolean)

Returns the callback configuration as set by SetAllSignalDataCallbackConfiguration.

Callbacks

Callbacks can be registered to receive time critical or recurring data from the device. The registration is done by assigning a procedure to an callback property of the device object:

procedure TExample.MyCallback(sender: TBrickletIndustrialCounter; const param: word);
begin
  WriteLn(param);
end;

industrialCounter.OnExample := {$ifdef FPC}@{$endif}example.MyCallback;

The available callback property and their type of parameters are described below.

Note

Using callbacks for recurring events is always preferred compared to using getters. It will use less USB bandwidth and the latency will be a lot better, since there is no round trip time.

property TBrickletIndustrialCounter.OnAllCounter
procedure(sender: TBrickletIndustrialCounter; const counter: array [0..3] of int64) of object;

This callback is triggered periodically according to the configuration set by SetAllCounterCallbackConfiguration.

The parameters are the same as GetAllCounter.

property TBrickletIndustrialCounter.OnAllSignalData
procedure(sender: TBrickletIndustrialCounter; const dutyCycle: array [0..3] of word; const period: array [0..3] of uint64; const frequency: array [0..3] of longword; const value: array [0..3] of boolean) of object;

This callback is triggered periodically according to the configuration set by SetAllSignalDataCallbackConfiguration.

The parameters are the same as GetAllSignalData.

Constants

const BRICKLET_INDUSTRIAL_COUNTER_DEVICE_IDENTIFIER

This constant is used to identify a Industrial Counter Bricklet.

The GetIdentity function and the OnEnumerate callback of the IP Connection have a deviceIdentifier parameter to specify the Brick's or Bricklet's type.

const BRICKLET_INDUSTRIAL_COUNTER_DEVICE_DISPLAY_NAME

This constant represents the human readable name of a Industrial Counter Bricklet.