PIC-MT-USB development board Users Manual

All boards produced by Olimex are ROHS compliant

Rev. A, November 2007

Copyright(c) 2011, OLIMEX Ltd, All rights reserved

Page 1

INTRODUCTION:

PIC-MT-USB is small development board for 40 pin PIC microcontroller. With its LCD, two buttons, USB, ICSP and extension connector for some of the microcontroller's pins this board is suitable for different embedded systems applications.

BOARD FEATURES:

– ICSP/ICD connector for programming with PIC-MCP-USB, PIC-MCP or PIC-PG1, PIC-PG2, PIC-PG3, PIC-PG4 and debugging with PIC-ICD2, PIC-ICD2-POCKET, PIC-ICD2-TINY or is PIC16F87X microcontroller is used PIC-ICD1

– DIL-40 for PIC microcontroller

– LCD 16x2 alphanumeric display with backlight

– 2 Buttons

– bi-color LED

– Power supply taken from USB port

– Virtual USB-RS232 port

– 20 Mhz crystal

– Extension headers for PIC unused ports

– Four mounting holes

– FR-4, 1.5 mm (0,062"), green soldermask, white silkscreen component print

– Dimensions 95x36 mm (3,7x1,4")

Page 2

ELECTROSTATIC WARNING:

The PIC-MT-USB board is shipped in protective anti-static packaging. The board must not be subject to high electrostatic potentials. General practice for working with static sensitive devices should be applied when working with this board.

BOARD USE REQUIREMENTS:

Cables: Depends on the used programming/debugging tool. It could be 1.8 meter USB A-B cable to connect PIC-ICD2-POCKET, PIC-ICD2, PIC-MCP-USB to USB host on PC or RS232 cable in case of PIC-ICD2-TINY, PIC-MCP or other programming/debugging tools.

Hardware: Programmer/Debugger – some of Olimex programmers are applicable, for example PIC-ICD2, PIC-ICD2-POCKET, PIC-ICD2-TINY, PIC-MCP, PIC-MCP-USB or other compatible programming/debugging tool.

Page 3

SCHEMATIC:

Page 4

100n

F

20pF

20pF

100n

F

100n

F10

0nF

10nF

NA

NA

100nF

10uF/6.3V

100n

F

100n

F47

uF/6

.3V

IRLM

L640

2

2X3M

MLE

D

+5V

+5V

+5V

+5V

+5V

+5V

+5V

20M

Hz

10K

10K

470

1.5K

10K

0

opt

10K

470

opt

220

220

10K

4.7K

0

1K

220

220

0

BC

846

10K

PIC

16F8

77P

FT23

2RLS

SO

P28

B1

B1

B2

B2

DB4

DB4

DB5

DB5

DB6

DB6

DB7

DB7

E

E

LED

1

LED

1

LED

2

LED

2

LIG

HT_

LCD

LIG

HT_

LCD

PW

REN

R/W

R/W

RA0

RA0

RA1

RA1

RA2

RA2

RA3

RA3

RA4

RA4

RA5

RA5

RB0

RB0

RC

0

RC

0

RC

1

RC

1

RC

2

RC

2

RC

3

RC

3

RC

4

RC

4

RC

5

RC

5

RE0

RE0

RE1

RE1

RE2

RE2

RS

RS

RST

RST

RT

S

RXD

RX

D

RXD

TXD

TXD

TXD

USB

DM

USB

DP

B1

B2

C1

C2

C3

C4

C5

C6

C14

C15

C26

C36

C37

C38

C39

C40

CTS

DC

DD

SRD

TR

12

34

56

78

910

EX

T1

12

34

56

78

910

EX

T2

FB1

FET

GN

D

1 2 3 4 5 6

ICS

P

DB

411

DB

512

DB

613

DB

714

E6

LIG

HT+

15

LIG

HT-

16

R/W

5

VDD2

VO

3

VSS 1

_RS

4

A1

A2(

RE

D)

LED

Q2

R1

R2

R3

R4

R5

R6

R7

R8

R9

R10

R11

R12

R13

R14

R15

R17

R18

R19

R20

RI

RTS

RXD

T1

TR1

TXD

INT/

RB

033

MC

LR#/

THV

1

OS

C1/

CLK

IN13

OS

C2/

CLK

OU

T14

PG

C/R

B6

39P

GD

/RB

740

PG

M/R

B3

36

PS

P4/

RD

427

PS

P5/

RD

528

PS

P6/

RD

629

PS

P7/

RD

730

RA

0/A

N0

2

RA

1/A

N1

3

RA

2/A

N2

4

RA

3/A

N3

5

RA

4/T0

CK

I6

RA

5/A

N4

7R

B1

34R

B2

35R

B4

37R

B5

38

RC

0/T1

OS

O15

RC

1/T1

OS

I16

RC

2/C

CP

117

RC

3/S

CK

18

RD

0/P

SP

019

RD

1/P

SP

120

RD

2/P

SP

221

RD

3/P

SP

322

RE

0/R

D#/

AN

58

RE

1/W

R#/

AN

69

RE

2/C

S#/

AN

710

RX

/RC

726

SD

I/RC

423

SD

O/R

C5

24TX

/RC

625

1132

1231

U1

VD

D

VS

S

#RE

SE

T19

3V3O

UT

17

AGND25

CB

US

023

CB

US

122

CB

US

213

CB

US

314

CB

US

412

CTS

#11

DC

D#

10D

SR

#9

DTR

#2

GND17

GND218

GND321

NC

18

NC

224

OS

CI

27

OS

CO

28

RI#

6

RTS

#3

RX

D5

TEST26

TXD

1

US

BD

M16

US

BD

P15

VC

C20

VC

CIO

4U

2

1 2 3 4

US

B

PIC

-MT-

USB

Rev

. A

CO

PY

RIG

HT(

C)

2007

, OLI

ME

X L

td.

http

://w

ww

.olim

ex.c

om/d

ev

+

+

FT232RL

USB

SH

IEL

D

BOARD LAYOUT:

POWER CIRCUIT:PIC-MT-USB can take power +5V from USB.

RESET CIRCUIT:

PIC-MT-USB reset circuit includes R8 (10k) pull-up, ICSP pin 1, U1 - pin 1 (MCLR#).

CLOCK CIRCUIT:

Quartz crystal Q2 (20 MHz) is connected to U1 pin 13 (OSC1/CLKIN) and pin 14 (OSC2/CLKOUT).

Page 5

JUMPER DESCRIPTION:

- There are no jumpers on this board.

INPUT/OUTPUT:

User button with name B1, connected to U1 - pin 38 (RB5).

User button with name B2, connected to U1 - pin 37 (RB4).

LCD 16x2 display with BACKLIGHT, connected as follows: RS – to U1 - pin 19 (RD0); R/W – to U1 - pin 20 (RD1); E – to U1 - pin 21 (RD2), DB4 – to U1 - pin 27 (RD4), DB5 – to U1 - pin 28 (RD5), DB6 – to U1 - pin 29 (RD6), DB7 to U1 - pin 30 (RD7).

Potentiometer with name TR1 for setting LCD contrast voltage.

Bi-colour status Led with name LED connected to U1 - pin 35 (red) and to U1 – pin 34 (green).

EXTERNAL CONNECTORS DESCRIPTION:

ICSP:

Pin # Signal Name

1 RST

2 +5V

3 GND

4 U1 – pin 40 (RB7)

5 U1 – pin 39 (RB6)

6 U1 – pin 36 (RB3)

USB:

Pin # Signal Name

1 USB_PWR

2 USBDM

3 USBDP

4 GND

Page 6

EXT1:

Pin # Signal Name

1 RC0

2 RC1

3 RC2

4 RC3

5 RC4

6 RC5

7 RXD

8 TXD

9 GND

10 +5V

EXT2:

Pin # Signal Name

1 RB0

2 RE2

3 RE1

4 RE0

5 RA5

6 RA4

7 RA3

8 RA2

9 RA1

10 RA0

Page 7

MECHANICAL DIMENSIONS:

Page 8

AVAILABLE DEMO SOFTWARE:

• Blinking LED for PIC16F877 demo code (C source and HEX)

• Button read for PIC16F877 demo code (C source and HEX)• RS232 send / receive for PIC16F877 demo code (C source and HEX)• LCD display write for PIC16F877 demo code (C source and HEX)

Page 9

ORDER CODE:

PIC-MT-USB - completely assembled and tested.

How to order? You can order to us directly or by any of our distributors. Check our web www.olimex.com/dev for more info.

Revision history:

Rev. A - create November 2007

Page 10

Disclaimer:

© 2011 Olimex Ltd. All rights reserved. Olimex®, logo and combinations thereof, are registered trademarks of Olimex Ltd. Other terms and product names may be trademarks of others.

The information in this document is provided in connection with Olimex products. No license, express or implied or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Olimex products.

Neither the whole nor any part of the information contained in or the product described in this document may be adapted or reproduced in any material from except with the prior written permission of the copyright holder.

The product described in this document is subject to continuous development and improvements. All particulars of the product and its use contained in this document are given by OLIMEX in good faith. However all warranties implied or expressed including but not limited to implied warranties of merchantability or fitness for purpose are excluded.

This document is intended only to assist the reader in the use of the product. OLIMEX Ltd. shall not be liable for any loss or damage arising from the use of any information in this document or any error or omission in such information or any incorrect use of the product.

Page 11