PIC-MT-USB

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, PICICD2-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, PICMCP, PIC-MCP-USB or other compatible programming/debugging tool. Page 3 USB C26 NA C15 NA C36 100nF C37 10uF/6.3V B1 GND 0 0 Page 4 100nF C5 220 R11 B1 B2 100nF C6 220 R12 B2 A1 LED 2X3MMLED A2(RED) R3 470 7 25 R2 10K 18 LED1 26 21 R1 10K +5V 23 22 13 14 12 1 5 3 11 2 9 10 6 R18 R19 LED2 R9 470 1.5K R4 R10 opt R5 10K C2 20pF C3 20pF RTS RXD TXD R7 opt 220 220 LIGHT_LCD TR1 10K FT232RLSSOP28 CBUS0 CBUS1 CBUS2 CBUS3 CBUS4 TXD RXD RTS# CTS# DTR# DSR# DCD# RI# C40 47uF/6.3V T1 BC846 0 R6 Q2 20MHz RXD TXD RTS CTS DTR DSR DCD RI RC0 RC1 RC2 RC3 RS R/W RA0 RA1 RA2 RA3 RA4 RA5 RE0 RE1 RE2 RST RS R/W E DB4 DB5 DB6 DB7 R8 10K 3 4 5 6 11 12 13 14 15 16 13 14 15 16 17 18 19 20 2 3 4 5 6 7 8 9 10 1 VDD _RS R/W E DB4 DB5 DB6 DB7 LIGHT+ LIGHT- VO +5V OSC1/CLKIN OSC2/CLKOUT RC0/T1OSO RC1/T1OSI RC2/CCP1 RC3/SCK RD0/PSP0 RD1/PSP1 VSS RA0/AN0 RA1/AN1 RA2/AN2 RA3/AN3 RA4/T0CKI RA5/AN4 RE0/RD#/AN5 RE1/WR#/AN6 RE2/CS#/AN7 MCLR#/THV U1 +5V VDD +5V GND1 AGND http://www.olimex.com/dev 3V3OUT NC1 #RESET NC2 OSCI OSCO GND2 2 COPYRIGHT(C) 2007, OLIMEX Ltd. 100nF C38 17 8 19 24 27 28 USBDM USBDP VCCIO VCC TEST GND3 Rev. A R13 10K 4.7K R14 16 15 4 20 FT232RL PIC-MT-USB R20 R15 USBDM USBDP + 10nF C14 S H IE L D 1 2 3 4 FB1 PWREN + USB 1K R17 100nF C39 +5V 11 32 U2 FET IRLML6402 10 8 6 4 2 RXD RC4 RC2 RC0 RA0 RA2 RA4 RE0 RE2 DB7 DB6 DB5 DB4 RXD TXD RC5 RC4 LIGHT_LCD E 30 29 28 27 26 25 24 23 22 21 EXT2 EXT1 LED1 LED2 RB0 B1 B2 +5V 40 39 38 37 36 35 34 33 9 7 5 3 1 PIC16F877P PSP7/RD7 PSP6/RD6 PSP5/RD5 PSP4/RD4 RX/RC7 TX/RC6 SDO/RC5 SDI/RC4 RD3/PSP3 RD2/PSP2 PGD/RB7 PGC/RB6 RB5 RB4 PGM/RB3 RB2 RB1 INT/RB0 C1 100nF C4 100nF 9 7 5 3 1 10 8 6 4 2 RST RA1 RA3 RA5 RE1 RB0 TXD RC5 RC3 RC1 1 2 3 4 5 6 +5V ICSP SCHEMATIC: 12 31 VSS 1 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 Pin # Signal Name 1 RB0 2 RE2 3 RE1 4 RE0 5 RA5 6 RA4 7 RA3 8 RA2 9 RA1 10 RA0 EXT2: 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