Maxim Integrated OneWireViewer, Version 1.5 User Manual

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When the Clock tab is active, the Clock viewer:

Continuously reads the time registers of the selected device.

Converts the reading from the device-specific format into a conventional format.

Displays the time read from the device (automatically updated with every reading).

Allows the RTC oscillator to be stopped and restarted.

Allows the time/date of the computer (PC or workstation) to be copied to the time registers in the device (i.e., click on Synchronize Clock to PC Time); this
function also restarts a halted RTC oscillator.

Notes:

If the 1-Wire device uses a binary counter as RTC (e. g., the DS1904, DS2415, DS2417), the Clock viewer sets the device clock to UTC (also known as
Greenwich Mean Time, GMT). If the RTC of the 1-Wire device counts seconds, hours, days, months, and years in separate registers (e.g., the DS1921,
DS1922), the Clock viewer sets the device clock to the local time.

Memory

The Memory viewer displays in hexadecimal format the data of the selected memory bank of the selected 1-Wire memory device connected to the OneWireViewer.
The user can change the data (see Hex Editor below) and write it back to the 1-Wire device.

The tab of the Memory viewer consists of three areas: Banks (top), Info (bottom left), and Contents (center right). Two buttons below the Contents area allow the
data of a selected memory bank to be reread (Refresh) and data that was manually entered in the contents area to be written to the 1-Wire device (Commit
Changes
). Depending on the size of the tab area, there may be scroll bars for the Info and Contents area. The Memory viewer applies to all devices that contain
general-purpose user memory and/or special function/register pages. See the Supported Devices table above for the list of devices. A memory bank must first be
selected before its data (Contents) and characteristics (Info) will be displayed. The Contents area is automatically refreshed whenever the bank selection changes.

Sample Memory Tab (DS1922L)

When the Memory tab is active, the Memory viewer:

Lists the names of the available banks.

Displays the characteristics and contents of the selected bank.

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