Datasheet

• 47 Code of Federal Regulations Part 15 -Radio Frequency Devices (FCC, part B).

• The Motor Vehicle Directive 95/54/EC.

• EN 50082-1: 1997.

• Complies with E-mark, CE, and C-Tick.

3.0 Electrical requirements

MDT-860 continuous mode power consumption details.

Supply voltage Backlight ON* Backlight OFF Low Power

12.0 118 mA 61 mA 22 mA

13.8 105 mA 54 mA 19 mA

24.0 65 mA 34 mA 13 mA

27.6 58 mA 31 mA 12 mA

All measurements taken without an external keyboard connected.

* Backlight includes LCD screen and all keys.

Table 3-1. Power consumption.

4.0 Software development kit (SDK)

The MDT-860 SDK is designed to speed up application development. The application engineer

can ignore the usual low-level issues that embedded software can present and concentrate on

developing new application software.

The SDK supports two environments:

• the native MDT-860

• an emulation environment using Windows.

The emulator is helpful for development, as debuggers can be used on the PC instead of

requiring costly in-circuit emulation. The Windows emulation environment requires a Windows

C compiler such as Borland C++ builder or Microsoft C++.

Please Note: The Software Development Kit requires a MDT programming cable. This is a Y

cable with a RJ45 plug (connects to MDT-850/860), DB9 female connector (connects to PC) and

tinned ying leads (connects to power and ground). Part number CB000054-G.

4.1 Memory usage

The entire 1664KB (2 x 832KB pages) of Flash memory is available to the application developer,

however some of this space will be used by the SDK libraries which the developer chooses to

link into their software.

Listed below are two examples of the memory usage of a typical application.

Example 1. SDK supplied Demo application. This is a small application demonstrating most

of the MDT-860 features.

• Application code: 49KB (includes 48.2KB of font data)

• Navman library code: 11.4KB

• C runtime library code: 14.9KB

Total code (Flash) usage: 75.3KB

Total RAM usage: 21.85KB (includes 1.25KB of stack and 18.75KB of LCD

shadow RAM)

Example 2. A larger application. This example would include multiple display windows, a

communication protocol, storage of messages and many other features.

• Application code 185KB (includes 65.3KB fonts/images)

• Navman library code: 21.4KB

• C runtime library code: 17.5KB

Total code usage: 224KB

Total RAM usage: 117KB)