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MK14 SCMP
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PIC14-V1

2 years ago 848
  • Description
  • Documents
  • BOM
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Description

PIC14 modified to use ULN2803A to drive LED displays

This is a slightly modified version of Karen Orton's emulated MK14 (SC/MP based) microprocessor trainer board which was released in 1977 and became my introduction to microprocessors , computers, and programming. I unfortunately sold my MK14 in 1979 when I upgraded to a UK101 (which I still own).

I designed this PCB project for nostalgic reasons and having just built it I am pleased to say it worked 100% first time.

I am only the designer of this PCB although I have changed the LED drivers from discreet transistors to a ULN8203.

All the magic of the project and software emulation in a PIC16F876 is the work of Karen Orten, whose original project is decribed in the following link, which also includes the PIC's firmware:

http://www.techlib.com/area_50/Readers/Karen/micro.htm#PIC14

Documents

PIC14-V1

PIC14-V1 PCB

BOM

ID Footprint Quantity
1 DIP28 1
2 AXIAL-0.4 8
3 HC49S 1
4 AXIAL-0.4 2
5 CERAMIC-2.54 2
6 SWITCH-6X6X5_TH 1
7 CAP-D5.0XF2.0 1
8 CAP-D5.0XF2.0 3
9 CERAMIC-2.54 3
10 SWITCH-6X6X5_TH 1
11 SWITCH-6X6X5_TH 1
12 SWITCH-6X6X5_TH 1
13 SWITCH-6X6X5_TH 1
14 SWITCH-6X6X5_TH 1
15 SWITCH-6X6X5_TH 1
16 SWITCH-6X6X5_TH 1
17 SWITCH-6X6X5_TH 1
18 SWITCH-6X6X5_TH 1
19 SWITCH-6X6X5_TH 1
20 SWITCH-6X6X5_TH 1
21 SWITCH-6X6X5_TH 1
22 SWITCH-6X6X5_TH 1
23 SWITCH-6X6X5_TH 1
24 SWITCH-6X6X5_TH 1
25 SWITCH-6X6X5_TH 1
26 SWITCH-6X6X5_TH 1
27 SWITCH-6X6X5_TH 1
28 SWITCH-6X6X5_TH 1
29 SWITCH-6X6X5_TH 1
30 AXIAL-0.4 6
31 SWITCH-6X6X5_TH 1
32 TO-92A 1
33 AXIAL-0.4 1
34 CERAMIC-2.54 1
35 DO-41 1
36 LEDSEG_0.36_4 2
37 HDR-2X1/2.54 1
38 DO-35 2
39 DIP-18 1
40 DC_5.5X2.1MM 1
41 TO-220(TO-220-3) 1
42 AXIAL-0.4 1
43 LED-3MM 1

Attachments

Filename Download
MK14 User Manual.pdf

Members

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