Write1WireBit

Write a bit to a 1-wire bus⁄device

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VERSION 1.46+ of the firmware, VERSION 58+ of the DLL

Description:

This is a function to send a 1-wire (MicroLAN) bit write on the previously selected port pin.

Command Syntax: (USBm.dll)

USBm_Write1WireBit( device, data )

The USBm_Write1WireBit function syntax has these parts:

Remarks:

This command does not set the port direction pins or select the pin to use as the 1-wire bus – it is the Reset1Wire command that does this.

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VB Declaration

Public Declare Function USBm_Write1WireBit _     Lib “USBm.dll” _         (ByVal device As Byte, _                ByVal data As Byte)_   As Integer

VB Example

USBm_Write1WireBit 3, 1

This code fragment addresses U4x1 device #3 and writes the bit value of 1 on the 1-wire bus (line to use previously selected by the Reset1Wire command).

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C Prototype

int USBm_Write1WireBit ( unsigned char device, unsigned char data );

C Example

USBm_Write1WireBit ( 3, 1 );

This code fragment addresses U4x1 device #3 and writes the bit value of 1 on the 1-wire bus (line to use previously selected by the Reset1Wire command).

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RobotBASIC

usbm_Write1WireBit(ne_DeviceNumber,ne_BitValue)

Returns true if successful, false otherwise. Writes a 0 or 1 to the 1wire device.

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Raw Command  Format:

Raw Command  Format Details:

Byte 0 contains the command. Byte 1 contains the data to write to the previously selected port line. the data is either a byte or a bit, depending on byte 2.

Byte 2 selects writing either a byte or a bit.

This command does not set the port direction pins or select the pin to use as the 1-wire bus – it is the Reset1Wire command that does this.

Raw Command Response Format:

Raw Command Response Format Details:

Byte 0 contains the command. Byte 1 through byte 7 are unused.