Embedded Acquistion Systems 68HC11 Especificaciones

1 EAS FINGER BOARD II 68HC11 Single Board Computer Ver. 11/24/03 Embedded Acquisition Systems 2517 Cobden Drive Sterling Hei

10Headers are counted in the same pattern as drawn on the schematic diagram. When possible we have placed the label closest to pin 1 on the printed c

11JP7 is the 68HC11 8-bit A/D analog input port. Input voltages between 0 and 5volts can be applied to the A/D. Grounds are provided for each analog

12JP10 is a dedicated header for a Sharp IR receiver when running Interactive C. Pin Function 1 Sharp IR receiver (68HC11 output pin PA2) 2 Ground

13JP18 is the MODB select. By placing a jumper on JP18, this will enable you to change the reset vector from 0xBFFE, 0xBFFF to 0xFFFE,0xFFFF. It is u

14 RUNNING INTERACTIVE C Interactive C (IC) is a simple to use C compiler for the 68HC11. The freeware version of IC can be downloaded from MIT’s FT

15 USING OTHER COMPILERS AND PROGRAMS The Finger Board was designed to take advantage of the many public domain software available on the web as wel

16FREQUENTLY ASKED QUESTIONS (FAQ) Please check our web site for the latest version of the Finger Board FAQ. TROUBLE SHOOTNG If you have purchase

17 Silkscreen Top View. Pin 1 on all headers are indicated by the square pad. Parts placement

18SPECIFICATIONS: Motorola 68HC11 CPU A0, A1, A8, E2, or E9 versions can be used. 256kbit (32Kbyte) Dallas 10 year battery-backed memory module, no

19STANDARD LEGAL STUFF Although all of the circuits and projects provided have been thoroughly tested by Embedded Acquisition Systems (EAS). We cann

2EAS FINGER BOARD was created as a small compact general purpose embedded controller to be used for robotics, data logging, smart instruments, and cu

20PARTS LIST FOR FINGER BOARD II Bill Of Materials, all parts can be found from Radio Shack, Digikey, JDR and Jameco. All resistors ½ W

3Step 3 Install the 52pin PGA IC socket for U4. Observe proper orientation for pin 1 before soldering. Step 4 Install the resistors R2, R3, R5, R6

4JP6 - Header 2x2 JP10, JP12, JP13 - installed as one Header 3x2 JP14 - Header 3x2 JP18 - Header 2x1 JP19 - Header 2x1 Note: If you have the one pi

5 Step 13 Bridge solder Pad J5 using a small blob of solder. This will connect the SRAM supply to VCC. J5 is located on the bottom side of the board

6backwards, the communications board will not operate. Place the cathode side of the LED to line up with the silkscreened bar on the PCB. R7 - 1K o

7The Finger Board II was designed to allow our LCD module to mount directly on top using a header and socket with the communications board attached.

8PARTS LIST FOR FINGER BOARD II Bill Of Materials, all parts can be found from Radio Shack, Digikey, JDR and Jameco. All resistors ½ Watt or less. A

9 CONNECTING TO THE FINGER BOARD